Merge branch 'fix/misc' into topic/misc

18 files changed, 4481 insertions, 353 deletions

diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 851716a7da0..e4c97fd6f05 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -426,6 +426,7 @@ config RADIO_TIMBERDALE
 config RADIO_WL1273
 	tristate "Texas Instruments WL1273 I2C FM Radio"
 	depends on I2C && VIDEO_V4L2
+	select MFD_CORE
 	select MFD_WL1273_CORE
 	select FW_LOADER
 	---help---
@@ -439,4 +440,7 @@ config RADIO_WL1273
 	  To compile this driver as a module, choose M here: the
 	  module will be called radio-wl1273.
 
+# TI's ST based wl128x FM radio
+source "drivers/media/radio/wl128x/Kconfig"
+
 endif # RADIO_ADAPTERS
diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile
index d68907fc792..f484a6e04eb 100644
--- a/drivers/media/radio/Makefile
+++ b/drivers/media/radio/Makefile
@@ -25,5 +25,6 @@ obj-$(CONFIG_RADIO_SAA7706H) += saa7706h.o
 obj-$(CONFIG_RADIO_TEF6862) += tef6862.o
 obj-$(CONFIG_RADIO_TIMBERDALE) += radio-timb.o
 obj-$(CONFIG_RADIO_WL1273) += radio-wl1273.o
+obj-$(CONFIG_RADIO_WL128X) += wl128x/
 
 EXTRA_CFLAGS += -Isound
diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index ed9cd7ad060..3d8cc425fa6 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -129,7 +129,7 @@ devices, that would be 76 and 91.  */
 #define STARTED	0
 #define STOPPED	1
 
-#define videodev_to_radio(d) container_of(d, struct dsbr100_device, videodev)
+#define v4l2_dev_to_radio(d) container_of(d, struct dsbr100_device, v4l2_dev)
 
 static int usb_dsbr100_probe(struct usb_interface *intf,
 			     const struct usb_device_id *id);
@@ -148,10 +148,9 @@ struct dsbr100_device {
 	struct v4l2_device v4l2_dev;
 
 	u8 *transfer_buffer;
-	struct mutex lock;	/* buffer locking */
+	struct mutex v4l2_lock;
 	int curfreq;
 	int stereo;
-	int removed;
 	int status;
 };
 
@@ -182,8 +181,6 @@ static int dsbr100_start(struct dsbr100_device *radio)
 	int retval;
 	int request;
 
-	mutex_lock(&radio->lock);
-
 	retval = usb_control_msg(radio->usbdev,
 		usb_rcvctrlpipe(radio->usbdev, 0),
 		USB_REQ_GET_STATUS,
@@ -207,11 +204,9 @@ static int dsbr100_start(struct dsbr100_device *radio)
 	}
 
 	radio->status = STARTED;
-	mutex_unlock(&radio->lock);
 	return (radio->transfer_buffer)[0];
 
 usb_control_msg_failed:
-	mutex_unlock(&radio->lock);
 	dev_err(&radio->usbdev->dev,
 		"%s - usb_control_msg returned %i, request %i\n",
 			__func__, retval, request);
@@ -225,8 +220,6 @@ static int dsbr100_stop(struct dsbr100_device *radio)
 	int retval;
 	int request;
 
-	mutex_lock(&radio->lock);
-
 	retval = usb_control_msg(radio->usbdev,
 		usb_rcvctrlpipe(radio->usbdev, 0),
 		USB_REQ_GET_STATUS,
@@ -250,11 +243,9 @@ static int dsbr100_stop(struct dsbr100_device *radio)
 	}
 
 	radio->status = STOPPED;
-	mutex_unlock(&radio->lock);
 	return (radio->transfer_buffer)[0];
 
 usb_control_msg_failed:
-	mutex_unlock(&radio->lock);
 	dev_err(&radio->usbdev->dev,
 		"%s - usb_control_msg returned %i, request %i\n",
 			__func__, retval, request);
@@ -269,8 +260,6 @@ static int dsbr100_setfreq(struct dsbr100_device *radio)
 	int request;
 	int freq = (radio->curfreq / 16 * 80) / 1000 + 856;
 
-	mutex_lock(&radio->lock);
-
 	retval = usb_control_msg(radio->usbdev,
 		usb_rcvctrlpipe(radio->usbdev, 0),
 		DSB100_TUNE,
@@ -306,12 +295,10 @@ static int dsbr100_setfreq(struct dsbr100_device *radio)
 	}
 
 	radio->stereo = !((radio->transfer_buffer)[0] & 0x01);
-	mutex_unlock(&radio->lock);
 	return (radio->transfer_buffer)[0];
 
 usb_control_msg_failed:
 	radio->stereo = -1;
-	mutex_unlock(&radio->lock);
 	dev_err(&radio->usbdev->dev,
 		"%s - usb_control_msg returned %i, request %i\n",
 			__func__, retval, request);
@@ -324,8 +311,6 @@ static void dsbr100_getstat(struct dsbr100_device *radio)
 {
 	int retval;
 
-	mutex_lock(&radio->lock);
-
 	retval = usb_control_msg(radio->usbdev,
 		usb_rcvctrlpipe(radio->usbdev, 0),
 		USB_REQ_GET_STATUS,
@@ -340,33 +325,8 @@ static void dsbr100_getstat(struct dsbr100_device *radio)
 	} else {
 		radio->stereo = !(radio->transfer_buffer[0] & 0x01);
 	}
-
-	mutex_unlock(&radio->lock);
 }
 
-/* USB subsystem interface begins here */
-
-/*
- * Handle unplugging of the device.
- * We call video_unregister_device in any case.
- * The last function called in this procedure is
- * usb_dsbr100_video_device_release
- */
-static void usb_dsbr100_disconnect(struct usb_interface *intf)
-{
-	struct dsbr100_device *radio = usb_get_intfdata(intf);
-
-	usb_set_intfdata (intf, NULL);
-
-	mutex_lock(&radio->lock);
-	radio->removed = 1;
-	mutex_unlock(&radio->lock);
-
-	video_unregister_device(&radio->videodev);
-	v4l2_device_disconnect(&radio->v4l2_dev);
-}
-
-
 static int vidioc_querycap(struct file *file, void *priv,
 					struct v4l2_capability *v)
 {
@@ -385,10 +345,6 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 {
 	struct dsbr100_device *radio = video_drvdata(file);
 
-	/* safety check */
-	if (radio->removed)
-		return -EIO;
-
 	if (v->index > 0)
 		return -EINVAL;
 
@@ -410,16 +366,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 static int vidioc_s_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
-	struct dsbr100_device *radio = video_drvdata(file);
-
-	/* safety check */
-	if (radio->removed)
-		return -EIO;
-
-	if (v->index > 0)
-		return -EINVAL;
-
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
@@ -428,13 +375,7 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 	struct dsbr100_device *radio = video_drvdata(file);
 	int retval;
 
-	/* safety check */
-	if (radio->removed)
-		return -EIO;
-
-	mutex_lock(&radio->lock);
 	radio->curfreq = f->frequency;
-	mutex_unlock(&radio->lock);
 
 	retval = dsbr100_setfreq(radio);
 	if (retval < 0)
@@ -447,10 +388,6 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
 	struct dsbr100_device *radio = video_drvdata(file);
 
-	/* safety check */
-	if (radio->removed)
-		return -EIO;
-
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = radio->curfreq;
 	return 0;
@@ -472,10 +409,6 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 {
 	struct dsbr100_device *radio = video_drvdata(file);
 
-	/* safety check */
-	if (radio->removed)
-		return -EIO;
-
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
 		ctrl->value = radio->status;
@@ -490,10 +423,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 	struct dsbr100_device *radio = video_drvdata(file);
 	int retval;
 
-	/* safety check */
-	if (radio->removed)
-		return -EIO;
-
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
 		if (ctrl->value) {
@@ -535,25 +464,44 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
 static int vidioc_s_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
-	return 0;
+	return a->index ? -EINVAL : 0;
+}
+
+/* USB subsystem interface begins here */
+
+/*
+ * Handle unplugging of the device.
+ * We call video_unregister_device in any case.
+ * The last function called in this procedure is
+ * usb_dsbr100_video_device_release
+ */
+static void usb_dsbr100_disconnect(struct usb_interface *intf)
+{
+	struct dsbr100_device *radio = usb_get_intfdata(intf);
+
+	v4l2_device_get(&radio->v4l2_dev);
+	mutex_lock(&radio->v4l2_lock);
+	usb_set_intfdata(intf, NULL);
+	video_unregister_device(&radio->videodev);
+	v4l2_device_disconnect(&radio->v4l2_dev);
+	mutex_unlock(&radio->v4l2_lock);
+	v4l2_device_put(&radio->v4l2_dev);
 }
 
+
 /* Suspend device - stop device. */
 static int usb_dsbr100_suspend(struct usb_interface *intf, pm_message_t message)
 {
 	struct dsbr100_device *radio = usb_get_intfdata(intf);
 	int retval;
 
+	mutex_lock(&radio->v4l2_lock);
 	if (radio->status == STARTED) {
 		retval = dsbr100_stop(radio);
 		if (retval < 0)
@@ -564,11 +512,9 @@ static int usb_dsbr100_suspend(struct usb_interface *intf, pm_message_t message)
 		 * we set status equal to STARTED.
 		 * On resume we will check status and run radio if needed.
 		 */
-
-		mutex_lock(&radio->lock);
 		radio->status = STARTED;
-		mutex_unlock(&radio->lock);
 	}
+	mutex_unlock(&radio->v4l2_lock);
 
 	dev_info(&intf->dev, "going into suspend..\n");
 
@@ -581,11 +527,13 @@ static int usb_dsbr100_resume(struct usb_interface *intf)
 	struct dsbr100_device *radio = usb_get_intfdata(intf);
 	int retval;
 
+	mutex_lock(&radio->v4l2_lock);
 	if (radio->status == STARTED) {
 		retval = dsbr100_start(radio);
 		if (retval < 0)
 			dev_warn(&intf->dev, "dsbr100_start failed\n");
 	}
+	mutex_unlock(&radio->v4l2_lock);
 
 	dev_info(&intf->dev, "coming out of suspend..\n");
 
@@ -593,9 +541,9 @@ static int usb_dsbr100_resume(struct usb_interface *intf)
 }
 
 /* free data structures */
-static void usb_dsbr100_video_device_release(struct video_device *videodev)
+static void usb_dsbr100_release(struct v4l2_device *v4l2_dev)
 {
-	struct dsbr100_device *radio = videodev_to_radio(videodev);
+	struct dsbr100_device *radio = v4l2_dev_to_radio(v4l2_dev);
 
 	v4l2_device_unregister(&radio->v4l2_dev);
 	kfree(radio->transfer_buffer);
@@ -605,7 +553,7 @@ static void usb_dsbr100_video_device_release(struct video_device *videodev)
 /* File system interface */
 static const struct v4l2_file_operations usb_dsbr100_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= video_ioctl2,
+	.unlocked_ioctl	= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops usb_dsbr100_ioctl_ops = {
@@ -644,6 +592,7 @@ static int usb_dsbr100_probe(struct usb_interface *intf,
 	}
 
 	v4l2_dev = &radio->v4l2_dev;
+	v4l2_dev->release = usb_dsbr100_release;
 
 	retval = v4l2_device_register(&intf->dev, v4l2_dev);
 	if (retval < 0) {
@@ -653,15 +602,14 @@ static int usb_dsbr100_probe(struct usb_interface *intf,
 		return retval;
 	}
 
+	mutex_init(&radio->v4l2_lock);
 	strlcpy(radio->videodev.name, v4l2_dev->name, sizeof(radio->videodev.name));
 	radio->videodev.v4l2_dev = v4l2_dev;
 	radio->videodev.fops = &usb_dsbr100_fops;
 	radio->videodev.ioctl_ops = &usb_dsbr100_ioctl_ops;
-	radio->videodev.release = usb_dsbr100_video_device_release;
-
-	mutex_init(&radio->lock);
+	radio->videodev.release = video_device_release_empty;
+	radio->videodev.lock = &radio->v4l2_lock;
 
-	radio->removed = 0;
 	radio->usbdev = interface_to_usbdev(intf);
 	radio->curfreq = FREQ_MIN * FREQ_MUL;
 	radio->status = STOPPED;
diff --git a/drivers/media/radio/radio-si4713.c b/drivers/media/radio/radio-si4713.c
index 726d367ad8d..444b4cf7e65 100644
--- a/drivers/media/radio/radio-si4713.c
+++ b/drivers/media/radio/radio-si4713.c
@@ -224,7 +224,8 @@ static int radio_si4713_s_frequency(struct file *file, void *p,
 							s_frequency, vf);
 }
 
-static long radio_si4713_default(struct file *file, void *p, int cmd, void *arg)
+static long radio_si4713_default(struct file *file, void *p,
+				bool valid_prio, int cmd, void *arg)
 {
 	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
 							ioctl, cmd, arg);
diff --git a/drivers/media/radio/radio-timb.c b/drivers/media/radio/radio-timb.c
index a185610b376..1e3a8dd820a 100644
--- a/drivers/media/radio/radio-timb.c
+++ b/drivers/media/radio/radio-timb.c
@@ -21,6 +21,7 @@
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-device.h>
 #include <linux/platform_device.h>
+#include <linux/mfd/core.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
@@ -148,7 +149,7 @@ static const struct v4l2_file_operations timbradio_fops = {
 
 static int __devinit timbradio_probe(struct platform_device *pdev)
 {
-	struct timb_radio_platform_data *pdata = pdev->dev.platform_data;
+	struct timb_radio_platform_data *pdata = mfd_get_data(pdev);
 	struct timbradio *tr;
 	int err;
 
diff --git a/drivers/media/radio/radio-wl1273.c b/drivers/media/radio/radio-wl1273.c
index 7ecc8e65766..e2550dc2944 100644
--- a/drivers/media/radio/radio-wl1273.c
+++ b/drivers/media/radio/radio-wl1273.c
@@ -1,7 +1,7 @@
 /*
  * Driver for the Texas Instruments WL1273 FM radio.
  *
- * Copyright (C) 2010 Nokia Corporation
+ * Copyright (C) 2011 Nokia Corporation
  * Author: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
  *
  * This program is free software; you can redistribute it and/or
@@ -67,7 +67,6 @@ struct wl1273_device {
 
 	/* RDS */
 	unsigned int rds_on;
-	struct delayed_work work;
 
 	wait_queue_head_t read_queue;
 	struct mutex lock; /* for serializing fm radio operations */
@@ -104,58 +103,6 @@ static unsigned int rds_buf = 100;
 module_param(rds_buf, uint, 0);
 MODULE_PARM_DESC(rds_buf, "Number of RDS buffer entries. Default = 100");
 
-static int wl1273_fm_read_reg(struct wl1273_core *core, u8 reg, u16 *value)
-{
-	struct i2c_client *client = core->client;
-	u8 b[2];
-	int r;
-
-	r = i2c_smbus_read_i2c_block_data(client, reg, sizeof(b), b);
-	if (r != 2) {
-		dev_err(&client->dev, "%s: Read: %d fails.\n", __func__, reg);
-		return -EREMOTEIO;
-	}
-
-	*value = (u16)b[0] << 8 | b[1];
-
-	return 0;
-}
-
-static int wl1273_fm_write_cmd(struct wl1273_core *core, u8 cmd, u16 param)
-{
-	struct i2c_client *client = core->client;
-	u8 buf[] = { (param >> 8) & 0xff, param & 0xff };
-	int r;
-
-	r = i2c_smbus_write_i2c_block_data(client, cmd, sizeof(buf), buf);
-	if (r) {
-		dev_err(&client->dev, "%s: Cmd: %d fails.\n", __func__, cmd);
-		return r;
-	}
-
-	return 0;
-}
-
-static int wl1273_fm_write_data(struct wl1273_core *core, u8 *data, u16 len)
-{
-	struct i2c_client *client = core->client;
-	struct i2c_msg msg;
-	int r;
-
-	msg.addr = client->addr;
-	msg.flags = 0;
-	msg.buf = data;
-	msg.len = len;
-
-	r = i2c_transfer(client->adapter, &msg, 1);
-	if (r != 1) {
-		dev_err(&client->dev, "%s: write error.\n", __func__);
-		return -EREMOTEIO;
-	}
-
-	return 0;
-}
-
 static int wl1273_fm_write_fw(struct wl1273_core *core,
 			      __u8 *fw, int len)
 {
@@ -188,94 +135,6 @@ static int wl1273_fm_write_fw(struct wl1273_core *core,
 	return r;
 }
 
-/**
- * wl1273_fm_set_audio() -	Set audio mode.
- * @core:			A pointer to the device struct.
- * @new_mode:			The new audio mode.
- *
- * Audio modes are WL1273_AUDIO_DIGITAL and WL1273_AUDIO_ANALOG.
- */
-static int wl1273_fm_set_audio(struct wl1273_core *core, unsigned int new_mode)
-{
-	int r = 0;
-
-	if (core->mode == WL1273_MODE_OFF ||
-	    core->mode == WL1273_MODE_SUSPENDED)
-		return -EPERM;
-
-	if (core->mode == WL1273_MODE_RX && new_mode == WL1273_AUDIO_DIGITAL) {
-		r = wl1273_fm_write_cmd(core, WL1273_PCM_MODE_SET,
-					WL1273_PCM_DEF_MODE);
-		if (r)
-			goto out;
-
-		r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET,
-					core->i2s_mode);
-		if (r)
-			goto out;
-
-		r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE,
-					WL1273_AUDIO_ENABLE_I2S);
-		if (r)
-			goto out;
-
-	} else if (core->mode == WL1273_MODE_RX &&
-		   new_mode == WL1273_AUDIO_ANALOG) {
-		r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE,
-					WL1273_AUDIO_ENABLE_ANALOG);
-		if (r)
-			goto out;
-
-	} else if (core->mode == WL1273_MODE_TX &&
-		   new_mode == WL1273_AUDIO_DIGITAL) {
-		r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET,
-					core->i2s_mode);
-		if (r)
-			goto out;
-
-		r = wl1273_fm_write_cmd(core, WL1273_AUDIO_IO_SET,
-					WL1273_AUDIO_IO_SET_I2S);
-		if (r)
-			goto out;
-
-	} else if (core->mode == WL1273_MODE_TX &&
-		   new_mode == WL1273_AUDIO_ANALOG) {
-		r = wl1273_fm_write_cmd(core, WL1273_AUDIO_IO_SET,
-					WL1273_AUDIO_IO_SET_ANALOG);
-		if (r)
-			goto out;
-	}
-
-	core->audio_mode = new_mode;
-out:
-	return r;
-}
-
-/**
- * wl1273_fm_set_volume() -	Set volume.
- * @core:			A pointer to the device struct.
- * @volume:			The new volume value.
- */
-static int wl1273_fm_set_volume(struct wl1273_core *core, unsigned int volume)
-{
-	u16 val;
-	int r;
-
-	if (volume > WL1273_MAX_VOLUME)
-		return -EINVAL;
-
-	if (core->volume == volume)
-		return 0;
-
-	val = volume;
-	r = wl1273_fm_read_reg(core, WL1273_VOLUME_SET, &val);
-	if (r)
-		return r;
-
-	core->volume = volume;
-	return 0;
-}
-
 #define WL1273_FIFO_HAS_DATA(status)	(1 << 5 & status)
 #define WL1273_RDS_CORRECTABLE_ERROR	(1 << 3)
 #define WL1273_RDS_UNCORRECTABLE_ERROR	(1 << 4)
@@ -306,7 +165,7 @@ static int wl1273_fm_rds(struct wl1273_device *radio)
 	if (core->mode != WL1273_MODE_RX)
 		return 0;
 
-	r = wl1273_fm_read_reg(core, WL1273_RDS_SYNC_GET, &val);
+	r = core->read(core, WL1273_RDS_SYNC_GET, &val);
 	if (r)
 		return r;
 
@@ -374,7 +233,7 @@ static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id)
 	u16 flags;
 	int r;
 
-	r = wl1273_fm_read_reg(core, WL1273_FLAG_GET, &flags);
+	r = core->read(core, WL1273_FLAG_GET, &flags);
 	if (r)
 		goto out;
 
@@ -398,7 +257,7 @@ static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id)
 	if (flags & WL1273_LEV_EVENT) {
 		u16 level;
 
-		r = wl1273_fm_read_reg(core, WL1273_RSSI_LVL_GET, &level);
+		r = core->read(core, WL1273_RSSI_LVL_GET, &level);
 		if (r)
 			goto out;
 
@@ -439,8 +298,8 @@ static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id)
 		dev_dbg(radio->dev, "IRQ: FR:\n");
 
 		if (core->mode == WL1273_MODE_RX) {
-			r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET,
-						TUNER_MODE_STOP_SEARCH);
+			r = core->write(core, WL1273_TUNER_MODE_SET,
+					TUNER_MODE_STOP_SEARCH);
 			if (r) {
 				dev_err(radio->dev,
 					"%s: TUNER_MODE_SET fails: %d\n",
@@ -448,7 +307,7 @@ static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id)
 				goto out;
 			}
 
-			r = wl1273_fm_read_reg(core, WL1273_FREQ_SET, &freq);
+			r = core->read(core, WL1273_FREQ_SET, &freq);
 			if (r)
 				goto out;
 
@@ -467,7 +326,7 @@ static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id)
 			dev_dbg(radio->dev, "%dkHz\n", radio->rx_frequency);
 
 		} else {
-			r = wl1273_fm_read_reg(core, WL1273_CHANL_SET, &freq);
+			r = core->read(core, WL1273_CHANL_SET, &freq);
 			if (r)
 				goto out;
 
@@ -477,8 +336,7 @@ static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id)
 	}
 
 out:
-	wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET,
-			    radio->irq_flags);
+	core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
 	complete(&radio->busy);
 
 	return IRQ_HANDLED;
@@ -512,7 +370,7 @@ static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq)
 	dev_dbg(radio->dev, "%s: freq: %d kHz\n", __func__, freq);
 
 	/* Set the current tx channel */
-	r = wl1273_fm_write_cmd(core, WL1273_CHANL_SET, freq / 10);
+	r = core->write(core, WL1273_CHANL_SET, freq / 10);
 	if (r)
 		return r;
 
@@ -526,7 +384,7 @@ static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq)
 	dev_dbg(radio->dev, "WL1273_CHANL_SET: %d\n", r);
 
 	/* Enable the output power */
-	r = wl1273_fm_write_cmd(core, WL1273_POWER_ENB_SET, 1);
+	r = core->write(core, WL1273_POWER_ENB_SET, 1);
 	if (r)
 		return r;
 
@@ -566,20 +424,20 @@ static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq)
 
 	dev_dbg(radio->dev, "%s: %dkHz\n", __func__, freq);
 
-	wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET, radio->irq_flags);
+	core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
 
 	if (radio->band == WL1273_BAND_JAPAN)
 		f = (freq - WL1273_BAND_JAPAN_LOW) / 50;
 	else
 		f = (freq - WL1273_BAND_OTHER_LOW) / 50;
 
-	r = wl1273_fm_write_cmd(core, WL1273_FREQ_SET, f);
+	r = core->write(core, WL1273_FREQ_SET, f);
 	if (r) {
 		dev_err(radio->dev, "FREQ_SET fails\n");
 		goto err;
 	}
 
-	r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET, TUNER_MODE_PRESET);
+	r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_PRESET);
 	if (r) {
 		dev_err(radio->dev, "TUNER_MODE_SET fails\n");
 		goto err;
@@ -609,7 +467,7 @@ static int wl1273_fm_get_freq(struct wl1273_device *radio)
 	int r;
 
 	if (core->mode == WL1273_MODE_RX) {
-		r = wl1273_fm_read_reg(core, WL1273_FREQ_SET, &f);
+		r = core->read(core, WL1273_FREQ_SET, &f);
 		if (r)
 			return r;
 
@@ -619,7 +477,7 @@ static int wl1273_fm_get_freq(struct wl1273_device *radio)
 		else
 			freq = WL1273_BAND_OTHER_LOW + 50 * f;
 	} else {
-		r = wl1273_fm_read_reg(core, WL1273_CHANL_SET, &f);
+		r = core->read(core, WL1273_CHANL_SET, &f);
 		if (r)
 			return r;
 
@@ -670,7 +528,7 @@ static int wl1273_fm_upload_firmware_patch(struct wl1273_device *radio)
 	}
 
 	/* ignore possible error here */
-	wl1273_fm_write_cmd(core, WL1273_RESET, 0);
+	core->write(core, WL1273_RESET, 0);
 
 	dev_dbg(dev, "%s - download OK, r: %d\n", __func__, r);
 out:
@@ -683,14 +541,14 @@ static int wl1273_fm_stop(struct wl1273_device *radio)
 	struct wl1273_core *core = radio->core;
 
 	if (core->mode == WL1273_MODE_RX) {
-		int r = wl1273_fm_write_cmd(core, WL1273_POWER_SET,
+		int r = core->write(core, WL1273_POWER_SET,
 				    WL1273_POWER_SET_OFF);
 		if (r)
 			dev_err(radio->dev, "%s: POWER_SET fails: %d\n",
 				__func__, r);
 	} else if (core->mode == WL1273_MODE_TX) {
-		int r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
-					    WL1273_PUPD_SET_OFF);
+		int r = core->write(core, WL1273_PUPD_SET,
+				    WL1273_PUPD_SET_OFF);
 		if (r)
 			dev_err(radio->dev,
 				"%s: PUPD_SET fails: %d\n", __func__, r);
@@ -725,11 +583,11 @@ static int wl1273_fm_start(struct wl1273_device *radio, int new_mode)
 			val |= WL1273_POWER_SET_RDS;
 
 		/* If this fails try again */
-		r = wl1273_fm_write_cmd(core, WL1273_POWER_SET, val);
+		r = core->write(core, WL1273_POWER_SET, val);
 		if (r) {
 			msleep(100);
 
-			r = wl1273_fm_write_cmd(core, WL1273_POWER_SET, val);
+			r = core->write(core, WL1273_POWER_SET, val);
 			if (r) {
 				dev_err(dev, "%s: POWER_SET fails\n", __func__);
 				goto fail;
@@ -742,11 +600,10 @@ static int wl1273_fm_start(struct wl1273_device *radio, int new_mode)
 
 	} else if (new_mode == WL1273_MODE_TX) {
 		/* If this fails try again once */
-		r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
-					WL1273_PUPD_SET_ON);
+		r = core->write(core, WL1273_PUPD_SET, WL1273_PUPD_SET_ON);
 		if (r) {
 			msleep(100);
-			r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
+			r = core->write(core, WL1273_PUPD_SET,
 					WL1273_PUPD_SET_ON);
 			if (r) {
 				dev_err(dev, "%s: PUPD_SET fails\n", __func__);
@@ -755,9 +612,9 @@ static int wl1273_fm_start(struct wl1273_device *radio, int new_mode)
 		}
 
 		if (radio->rds_on)
-			r = wl1273_fm_write_cmd(core, WL1273_RDS_DATA_ENB, 1);
+			r = core->write(core, WL1273_RDS_DATA_ENB, 1);
 		else
-			r = wl1273_fm_write_cmd(core, WL1273_RDS_DATA_ENB, 0);
+			r = core->write(core, WL1273_RDS_DATA_ENB, 0);
 	} else {
 		dev_warn(dev, "%s: Illegal mode.\n", __func__);
 	}
@@ -777,14 +634,14 @@ static int wl1273_fm_start(struct wl1273_device *radio, int new_mode)
 			if (radio->rds_on)
 				val |= WL1273_POWER_SET_RDS;
 
-			r = wl1273_fm_write_cmd(core, WL1273_POWER_SET, val);
+			r = core->write(core, WL1273_POWER_SET, val);
 			if (r) {
 				dev_err(dev, "%s: POWER_SET fails\n", __func__);
 				goto fail;
 			}
 		} else if (new_mode == WL1273_MODE_TX) {
-			r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
-						WL1273_PUPD_SET_ON);
+			r = core->write(core, WL1273_PUPD_SET,
+					WL1273_PUPD_SET_ON);
 			if (r) {
 				dev_err(dev, "%s: PUPD_SET fails\n", __func__);
 				goto fail;
@@ -808,10 +665,10 @@ static int wl1273_fm_suspend(struct wl1273_device *radio)
 
 	/* Cannot go from OFF to SUSPENDED */
 	if (core->mode == WL1273_MODE_RX)
-		r = wl1273_fm_write_cmd(core, WL1273_POWER_SET,
+		r = core->write(core, WL1273_POWER_SET,
 				WL1273_POWER_SET_RETENTION);
 	else if (core->mode == WL1273_MODE_TX)
-		r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
+		r = core->write(core, WL1273_PUPD_SET,
 				WL1273_PUPD_SET_RETENTION);
 	else
 		r = -EINVAL;
@@ -852,8 +709,7 @@ static int wl1273_fm_set_mode(struct wl1273_device *radio, int mode)
 		}
 
 		core->mode = mode;
-		r = wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET,
-					radio->irq_flags);
+		r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
 		if (r) {
 			dev_err(dev, "INT_MASK_SET fails.\n");
 			goto out;
@@ -951,22 +807,21 @@ static int wl1273_fm_set_seek(struct wl1273_device *radio,
 	INIT_COMPLETION(radio->busy);
 	dev_dbg(radio->dev, "%s: BUSY\n", __func__);
 
-	r = wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET, radio->irq_flags);
+	r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
 	if (r)
 		goto out;
 
 	dev_dbg(radio->dev, "%s\n", __func__);
 
-	r = wl1273_fm_write_cmd(core, WL1273_SEARCH_LVL_SET, level);
+	r = core->write(core, WL1273_SEARCH_LVL_SET, level);
 	if (r)
 		goto out;
 
-	r = wl1273_fm_write_cmd(core, WL1273_SEARCH_DIR_SET, dir);
+	r = core->write(core, WL1273_SEARCH_DIR_SET, dir);
 	if (r)
 		goto out;
 
-	r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET,
-				TUNER_MODE_AUTO_SEEK);
+	r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK);
 	if (r)
 		goto out;
 
@@ -994,8 +849,7 @@ static int wl1273_fm_set_seek(struct wl1273_device *radio,
 	INIT_COMPLETION(radio->busy);
 	dev_dbg(radio->dev, "%s: BUSY\n", __func__);
 
-	r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET,
-				TUNER_MODE_AUTO_SEEK);
+	r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK);
 	if (r)
 		goto out;
 
@@ -1020,7 +874,7 @@ static unsigned int wl1273_fm_get_tx_ctune(struct wl1273_device *radio)
 	    core->mode == WL1273_MODE_SUSPENDED)
 		return -EPERM;
 
-	r = wl1273_fm_read_reg(core, WL1273_READ_FMANT_TUNE_VALUE, &val);
+	r = core->read(core, WL1273_READ_FMANT_TUNE_VALUE, &val);
 	if (r) {
 		dev_err(dev, "%s: read error: %d\n", __func__, r);
 		goto out;
@@ -1066,7 +920,7 @@ static int wl1273_fm_set_preemphasis(struct wl1273_device *radio,
 		goto out;
 	}
 
-	r = wl1273_fm_write_cmd(core, WL1273_PREMPH_SET, em);
+	r = core->write(core, WL1273_PREMPH_SET, em);
 	if (r)
 		goto out;
 
@@ -1086,7 +940,7 @@ static int wl1273_fm_rds_on(struct wl1273_device *radio)
 	if (radio->rds_on)
 		return 0;
 
-	r = wl1273_fm_write_cmd(core, WL1273_POWER_SET,
+	r = core->write(core, WL1273_POWER_SET,
 			WL1273_POWER_SET_FM | WL1273_POWER_SET_RDS);
 	if (r)
 		goto out;
@@ -1108,19 +962,16 @@ static int wl1273_fm_rds_off(struct wl1273_device *radio)
 
 	radio->irq_flags &= ~WL1273_RDS_EVENT;
 
-	r = wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET, radio->irq_flags);
+	r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
 	if (r)
 		goto out;
 
-	/* stop rds reception */
-	cancel_delayed_work(&radio->work);
-
 	/* Service pending read */
 	wake_up_interruptible(&radio->read_queue);
 
 	dev_dbg(radio->dev, "%s\n", __func__);
 
-	r = wl1273_fm_write_cmd(core, WL1273_POWER_SET, WL1273_POWER_SET_FM);
+	r = core->write(core, WL1273_POWER_SET, WL1273_POWER_SET_FM);
 	if (r)
 		goto out;
 
@@ -1143,14 +994,14 @@ static int wl1273_fm_set_rds(struct wl1273_device *radio, unsigned int new_mode)
 		return -EPERM;
 
 	if (new_mode == WL1273_RDS_RESET) {
-		r = wl1273_fm_write_cmd(core, WL1273_RDS_CNTRL_SET, 1);
+		r = core->write(core, WL1273_RDS_CNTRL_SET, 1);
 		return r;
 	}
 
 	if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_OFF) {
-		r = wl1273_fm_write_cmd(core, WL1273_RDS_DATA_ENB, 0);
+		r = core->write(core, WL1273_RDS_DATA_ENB, 0);
 	} else if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_ON) {
-		r = wl1273_fm_write_cmd(core, WL1273_RDS_DATA_ENB, 1);
+		r = core->write(core, WL1273_RDS_DATA_ENB, 1);
 	} else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_OFF) {
 		r = wl1273_fm_rds_off(radio);
 	} else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_ON) {
@@ -1171,12 +1022,13 @@ static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf,
 				    size_t count, loff_t *ppos)
 {
 	struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
+	struct wl1273_core *core = radio->core;
 	u16 val;
 	int r;
 
 	dev_dbg(radio->dev, "%s\n", __func__);
 
-	if (radio->core->mode != WL1273_MODE_TX)
+	if (core->mode != WL1273_MODE_TX)
 		return count;
 
 	if (radio->rds_users == 0) {
@@ -1184,7 +1036,7 @@ static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf,
 		return 0;
 	}
 
-	if (mutex_lock_interruptible(&radio->core->lock))
+	if (mutex_lock_interruptible(&core->lock))
 		return -EINTR;
 	/*
 	 * Multiple processes can open the device, but only
@@ -1202,7 +1054,7 @@ static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf,
 	else
 		val = count;
 
-	wl1273_fm_write_cmd(radio->core, WL1273_RDS_CONFIG_DATA_SET, val);
+	core->write(core, WL1273_RDS_CONFIG_DATA_SET, val);
 
 	if (copy_from_user(radio->write_buf + 1, buf, val)) {
 		r = -EFAULT;
@@ -1213,11 +1065,11 @@ static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf,
 	dev_dbg(radio->dev, "From user: \"%s\"\n", radio->write_buf);
 
 	radio->write_buf[0] = WL1273_RDS_DATA_SET;
-	wl1273_fm_write_data(radio->core, radio->write_buf, val + 1);
+	core->write_data(core, radio->write_buf, val + 1);
 
 	r = val;
 out:
-	mutex_unlock(&radio->core->lock);
+	mutex_unlock(&core->lock);
 
 	return r;
 }
@@ -1263,8 +1115,8 @@ static int wl1273_fm_fops_open(struct file *file)
 
 		radio->irq_flags |= WL1273_RDS_EVENT;
 
-		r = wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET,
-					radio->irq_flags);
+		r = core->write(core, WL1273_INT_MASK_SET,
+				radio->irq_flags);
 		if (r) {
 			mutex_unlock(&core->lock);
 			goto out;
@@ -1295,9 +1147,9 @@ static int wl1273_fm_fops_release(struct file *file)
 			radio->irq_flags &= ~WL1273_RDS_EVENT;
 
 			if (core->mode == WL1273_MODE_RX) {
-				r = wl1273_fm_write_cmd(core,
-							WL1273_INT_MASK_SET,
-							radio->irq_flags);
+				r = core->write(core,
+						WL1273_INT_MASK_SET,
+						radio->irq_flags);
 				if (r) {
 					mutex_unlock(&core->lock);
 					goto out;
@@ -1324,7 +1176,7 @@ static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf,
 
 	dev_dbg(radio->dev, "%s\n", __func__);
 
-	if (radio->core->mode != WL1273_MODE_RX)
+	if (core->mode != WL1273_MODE_RX)
 		return 0;
 
 	if (radio->rds_users == 0) {
@@ -1345,7 +1197,7 @@ static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf,
 	}
 	radio->owner = file;
 
-	r = wl1273_fm_read_reg(core, WL1273_RDS_SYNC_GET, &val);
+	r = core->read(core, WL1273_RDS_SYNC_GET, &val);
 	if (r) {
 		dev_err(radio->dev, "%s: Get RDS_SYNC fails.\n", __func__);
 		goto out;
@@ -1466,23 +1318,24 @@ static int wl1273_fm_vidioc_s_input(struct file *file, void *priv,
  */
 static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power)
 {
+	struct wl1273_core *core = radio->core;
 	int r;
 
-	if (radio->core->mode == WL1273_MODE_OFF ||
-	    radio->core->mode == WL1273_MODE_SUSPENDED)
+	if (core->mode == WL1273_MODE_OFF ||
+	    core->mode == WL1273_MODE_SUSPENDED)
 		return -EPERM;
 
-	mutex_lock(&radio->core->lock);
+	mutex_lock(&core->lock);
 
 	/* Convert the dBuV value to chip presentation */
-	r = wl1273_fm_write_cmd(radio->core, WL1273_POWER_LEV_SET, 122 - power);
+	r = core->write(core, WL1273_POWER_LEV_SET, 122 - power);
 	if (r)
 		goto out;
 
 	radio->tx_power = power;
 
 out:
-	mutex_unlock(&radio->core->lock);
+	mutex_unlock(&core->lock);
 	return r;
 }
 
@@ -1493,23 +1346,24 @@ out:
 static int wl1273_fm_tx_set_spacing(struct wl1273_device *radio,
 				    unsigned int spacing)
 {
+	struct wl1273_core *core = radio->core;
 	int r;
 
 	if (spacing == 0) {
-		r = wl1273_fm_write_cmd(radio->core, WL1273_SCAN_SPACING_SET,
-					WL1273_SPACING_100kHz);
+		r = core->write(core, WL1273_SCAN_SPACING_SET,
+				WL1273_SPACING_100kHz);
 		radio->spacing = 100;
 	} else if (spacing - 50000 < 25000) {
-		r = wl1273_fm_write_cmd(radio->core, WL1273_SCAN_SPACING_SET,
-					WL1273_SPACING_50kHz);
+		r = core->write(core, WL1273_SCAN_SPACING_SET,
+				WL1273_SPACING_50kHz);
 		radio->spacing = 50;
 	} else if (spacing - 100000 < 50000) {
-		r = wl1273_fm_write_cmd(radio->core, WL1273_SCAN_SPACING_SET,
-					WL1273_SPACING_100kHz);
+		r = core->write(core, WL1273_SCAN_SPACING_SET,
+				WL1273_SPACING_100kHz);
 		radio->spacing = 100;
 	} else {
-		r = wl1273_fm_write_cmd(radio->core, WL1273_SCAN_SPACING_SET,
-					WL1273_SPACING_200kHz);
+		r = core->write(core, WL1273_SCAN_SPACING_SET,
+				WL1273_SPACING_200kHz);
 		radio->spacing = 200;
 	}
 
@@ -1567,17 +1421,17 @@ static int wl1273_fm_vidioc_s_ctrl(struct v4l2_ctrl *ctrl)
 			return -EINTR;
 
 		if (core->mode == WL1273_MODE_RX && ctrl->val)
-			r = wl1273_fm_write_cmd(core,
-						WL1273_MUTE_STATUS_SET,
-						WL1273_MUTE_HARD_LEFT |
-						WL1273_MUTE_HARD_RIGHT);
+			r = core->write(core,
+					WL1273_MUTE_STATUS_SET,
+					WL1273_MUTE_HARD_LEFT |
+					WL1273_MUTE_HARD_RIGHT);
 		else if (core->mode == WL1273_MODE_RX)
-			r = wl1273_fm_write_cmd(core,
-						WL1273_MUTE_STATUS_SET, 0x0);
+			r = core->write(core,
+					WL1273_MUTE_STATUS_SET, 0x0);
 		else if (core->mode == WL1273_MODE_TX && ctrl->val)
-			r = wl1273_fm_write_cmd(core, WL1273_MUTE, 1);
+			r = core->write(core, WL1273_MUTE, 1);
 		else if (core->mode == WL1273_MODE_TX)
-			r = wl1273_fm_write_cmd(core, WL1273_MUTE, 0);
+			r = core->write(core, WL1273_MUTE, 0);
 
 		mutex_unlock(&core->lock);
 		break;
@@ -1672,7 +1526,7 @@ static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv,
 	if (mutex_lock_interruptible(&core->lock))
 		return -EINTR;
 
-	r = wl1273_fm_read_reg(core, WL1273_STEREO_GET, &val);
+	r = core->read(core, WL1273_STEREO_GET, &val);
 	if (r)
 		goto out;
 
@@ -1681,7 +1535,7 @@ static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv,
 	else
 		tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
 
-	r = wl1273_fm_read_reg(core, WL1273_RSSI_LVL_GET, &val);
+	r = core->read(core, WL1273_RSSI_LVL_GET, &val);
 	if (r)
 		goto out;
 
@@ -1690,7 +1544,7 @@ static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv,
 
 	tuner->afc = 0;
 
-	r = wl1273_fm_read_reg(core, WL1273_RDS_SYNC_GET, &val);
+	r = core->read(core, WL1273_RDS_SYNC_GET, &val);
 	if (r)
 		goto out;
 
@@ -1736,8 +1590,7 @@ static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv,
 		dev_warn(radio->dev, "%s: RDS fails: %d\n", __func__, r);
 
 	if (tuner->audmode == V4L2_TUNER_MODE_MONO) {
-		r = wl1273_fm_write_cmd(core, WL1273_MOST_MODE_SET,
-					WL1273_RX_MONO);
+		r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_MONO);
 		if (r < 0) {
 			dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n",
 				 __func__, r);
@@ -1745,8 +1598,7 @@ static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv,
 		}
 		radio->stereo = false;
 	} else if (tuner->audmode == V4L2_TUNER_MODE_STEREO) {
-		r = wl1273_fm_write_cmd(core, WL1273_MOST_MODE_SET,
-					WL1273_RX_STEREO);
+		r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_STEREO);
 		if (r < 0) {
 			dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n",
 				 __func__, r);
@@ -1885,10 +1737,10 @@ static int wl1273_fm_vidioc_s_modulator(struct file *file, void *priv,
 		r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF);
 
 	if (modulator->txsubchans & V4L2_TUNER_SUB_MONO)
-		r = wl1273_fm_write_cmd(core, WL1273_MONO_SET, WL1273_TX_MONO);
+		r = core->write(core, WL1273_MONO_SET, WL1273_TX_MONO);
 	else
-		r = wl1273_fm_write_cmd(core, WL1273_MONO_SET,
-					WL1273_RX_STEREO);
+		r = core->write(core, WL1273_MONO_SET,
+				WL1273_RX_STEREO);
 	if (r < 0)
 		dev_warn(radio->dev, WL1273_FM_DRIVER_NAME
 			 "MONO_SET fails: %d\n", r);
@@ -1923,7 +1775,7 @@ static int wl1273_fm_vidioc_g_modulator(struct file *file, void *priv,
 	if (mutex_lock_interruptible(&core->lock))
 		return -EINTR;
 
-	r = wl1273_fm_read_reg(core, WL1273_MONO_SET, &val);
+	r = core->read(core, WL1273_MONO_SET, &val);
 	if (r)
 		goto out;
 
@@ -1960,38 +1812,38 @@ static int wl1273_fm_vidioc_log_status(struct file *file, void *priv)
 		return 0;
 	}
 
-	r = wl1273_fm_read_reg(core, WL1273_ASIC_ID_GET, &val);
+	r = core->read(core, WL1273_ASIC_ID_GET, &val);
 	if (r)
 		dev_err(dev, "%s: Get ASIC_ID fails.\n", __func__);
 	else
 		dev_info(dev, "ASIC_ID: 0x%04x\n", val);
 
-	r = wl1273_fm_read_reg(core, WL1273_ASIC_VER_GET, &val);
+	r = core->read(core, WL1273_ASIC_VER_GET, &val);
 	if (r)
 		dev_err(dev, "%s: Get ASIC_VER fails.\n", __func__);
 	else
 		dev_info(dev, "ASIC Version: 0x%04x\n", val);
 
-	r = wl1273_fm_read_reg(core, WL1273_FIRM_VER_GET, &val);
+	r = core->read(core, WL1273_FIRM_VER_GET, &val);
 	if (r)
 		dev_err(dev, "%s: Get FIRM_VER fails.\n", __func__);
 	else
 		dev_info(dev, "FW version: %d(0x%04x)\n", val, val);
 
-	r = wl1273_fm_read_reg(core, WL1273_BAND_SET, &val);
+	r = core->read(core, WL1273_BAND_SET, &val);
 	if (r)
 		dev_err(dev, "%s: Get BAND fails.\n", __func__);
 	else
 		dev_info(dev, "BAND: %d\n", val);
 
 	if (core->mode == WL1273_MODE_TX) {
-		r = wl1273_fm_read_reg(core, WL1273_PUPD_SET, &val);
+		r = core->read(core, WL1273_PUPD_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get PUPD fails.\n", __func__);
 		else
 			dev_info(dev, "PUPD: 0x%04x\n", val);
 
-		r = wl1273_fm_read_reg(core, WL1273_CHANL_SET, &val);
+		r = core->read(core, WL1273_CHANL_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get CHANL fails.\n", __func__);
 		else
@@ -1999,13 +1851,13 @@ static int wl1273_fm_vidioc_log_status(struct file *file, void *priv)
 	} else if (core->mode == WL1273_MODE_RX) {
 		int bf = radio->rangelow;
 
-		r = wl1273_fm_read_reg(core, WL1273_FREQ_SET, &val);
+		r = core->read(core, WL1273_FREQ_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get FREQ fails.\n", __func__);
 		else
 			dev_info(dev, "RX Frequency: %dkHz\n", bf + val*50);
 
-		r = wl1273_fm_read_reg(core, WL1273_MOST_MODE_SET, &val);
+		r = core->read(core, WL1273_MOST_MODE_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get MOST_MODE fails.\n",
 				__func__);
@@ -2016,7 +1868,7 @@ static int wl1273_fm_vidioc_log_status(struct file *file, void *priv)
 		else
 			dev_info(dev, "MOST_MODE: Unexpected value: %d\n", val);
 
-		r = wl1273_fm_read_reg(core, WL1273_MOST_BLEND_SET, &val);
+		r = core->read(core, WL1273_MOST_BLEND_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get MOST_BLEND fails.\n", __func__);
 		else if (val == 0)
@@ -2027,7 +1879,7 @@ static int wl1273_fm_vidioc_log_status(struct file *file, void *priv)
 		else
 			dev_info(dev, "MOST_BLEND: Unexpected val: %d\n", val);
 
-		r = wl1273_fm_read_reg(core, WL1273_STEREO_GET, &val);
+		r = core->read(core, WL1273_STEREO_GET, &val);
 		if (r)
 			dev_err(dev, "%s: Get STEREO fails.\n", __func__);
 		else if (val == 0)
@@ -2037,25 +1889,25 @@ static int wl1273_fm_vidioc_log_status(struct file *file, void *priv)
 		else
 			dev_info(dev, "STEREO: Unexpected value: %d\n", val);
 
-		r = wl1273_fm_read_reg(core, WL1273_RSSI_LVL_GET, &val);
+		r = core->read(core, WL1273_RSSI_LVL_GET, &val);
 		if (r)
 			dev_err(dev, "%s: Get RSSI_LVL fails.\n", __func__);
 		else
 			dev_info(dev, "RX signal strength: %d\n", (s16) val);
 
-		r = wl1273_fm_read_reg(core, WL1273_POWER_SET, &val);
+		r = core->read(core, WL1273_POWER_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get POWER fails.\n", __func__);
 		else
 			dev_info(dev, "POWER: 0x%04x\n", val);
 
-		r = wl1273_fm_read_reg(core, WL1273_INT_MASK_SET, &val);
+		r = core->read(core, WL1273_INT_MASK_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get INT_MASK fails.\n", __func__);
 		else
 			dev_info(dev, "INT_MASK: 0x%04x\n", val);
 
-		r = wl1273_fm_read_reg(core, WL1273_RDS_SYNC_GET, &val);
+		r = core->read(core, WL1273_RDS_SYNC_GET, &val);
 		if (r)
 			dev_err(dev, "%s: Get RDS_SYNC fails.\n",
 				__func__);
@@ -2067,14 +1919,14 @@ static int wl1273_fm_vidioc_log_status(struct file *file, void *priv)
 		else
 			dev_info(dev, "RDS_SYNC: Unexpected value: %d\n", val);
 
-		r = wl1273_fm_read_reg(core, WL1273_I2S_MODE_CONFIG_SET, &val);
+		r = core->read(core, WL1273_I2S_MODE_CONFIG_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get I2S_MODE_CONFIG fails.\n",
 				__func__);
 		else
 			dev_info(dev, "I2S_MODE_CONFIG: 0x%04x\n", val);
 
-		r = wl1273_fm_read_reg(core, WL1273_VOLUME_SET, &val);
+		r = core->read(core, WL1273_VOLUME_SET, &val);
 		if (r)
 			dev_err(dev, "%s: Get VOLUME fails.\n", __func__);
 		else
@@ -2138,7 +1990,7 @@ static int wl1273_fm_radio_remove(struct platform_device *pdev)
 
 static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev)
 {
-	struct wl1273_core **core = pdev->dev.platform_data;
+	struct wl1273_core **core = mfd_get_data(pdev);
 	struct wl1273_device *radio;
 	struct v4l2_ctrl *ctrl;
 	int r = 0;
@@ -2184,10 +2036,6 @@ static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev)
 	radio->stereo = true;
 	radio->bus_type = "I2C";
 
-	radio->core->write = wl1273_fm_write_cmd;
-	radio->core->set_audio = wl1273_fm_set_audio;
-	radio->core->set_volume = wl1273_fm_set_volume;
-
 	if (radio->core->pdata->request_resources) {
 		r = radio->core->pdata->request_resources(radio->core->client);
 		if (r) {
@@ -2319,7 +2167,6 @@ module_init(wl1273_fm_module_init);
 
 static void __exit wl1273_fm_module_exit(void)
 {
-	flush_scheduled_work();
 	platform_driver_unregister(&wl1273_fm_radio_driver);
 	pr_info(DRIVER_DESC ", Exiting.\n");
 }
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c
index 60c176fe328..38ae6cd6579 100644
--- a/drivers/media/radio/si470x/radio-si470x-common.c
+++ b/drivers/media/radio/si470x/radio-si470x-common.c
@@ -460,7 +460,6 @@ static ssize_t si470x_fops_read(struct file *file, char __user *buf,
 	count /= 3;
 
 	/* copy RDS block out of internal buffer and to user buffer */
-	mutex_lock(&radio->lock);
 	while (block_count < count) {
 		if (radio->rd_index == radio->wr_index)
 			break;
diff --git a/drivers/media/radio/wl128x/Kconfig b/drivers/media/radio/wl128x/Kconfig
new file mode 100644
index 00000000000..749f67b192e
--- /dev/null
+++ b/drivers/media/radio/wl128x/Kconfig
@@ -0,0 +1,17 @@
+#
+# TI's wl128x FM driver based on TI's ST driver.
+#
+menu "Texas Instruments WL128x FM driver (ST based)"
+config RADIO_WL128X
+	tristate "Texas Instruments WL128x FM Radio"
+	depends on VIDEO_V4L2 && RFKILL
+	select TI_ST
+	help
+	Choose Y here if you have this FM radio chip.
+
+	In order to control your radio card, you will need to use programs
+	that are compatible with the Video For Linux 2 API.  Information on
+	this API and pointers to "v4l2" programs may be found at
+	<file:Documentation/video4linux/API.html>.
+
+endmenu
diff --git a/drivers/media/radio/wl128x/Makefile b/drivers/media/radio/wl128x/Makefile
new file mode 100644
index 00000000000..32a0ead0984
--- /dev/null
+++ b/drivers/media/radio/wl128x/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for TI's shared transport driver based wl128x
+# FM radio.
+#
+obj-$(CONFIG_RADIO_WL128X)	+= fm_drv.o
+fm_drv-objs		:= fmdrv_common.o fmdrv_rx.o fmdrv_tx.o fmdrv_v4l2.o
diff --git a/drivers/media/radio/wl128x/fmdrv.h b/drivers/media/radio/wl128x/fmdrv.h
new file mode 100644
index 00000000000..5db6fd14cf3
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv.h
@@ -0,0 +1,244 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *
+ *  Common header for all FM driver sub-modules.
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef _FM_DRV_H
+#define _FM_DRV_H
+
+#include <linux/skbuff.h>
+#include <linux/interrupt.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <linux/timer.h>
+#include <linux/version.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+
+#define FM_DRV_VERSION            "0.10"
+/* Should match with FM_DRV_VERSION */
+#define FM_DRV_RADIO_VERSION      KERNEL_VERSION(0, 0, 1)
+#define FM_DRV_NAME               "ti_fmdrv"
+#define FM_DRV_CARD_SHORT_NAME    "TI FM Radio"
+#define FM_DRV_CARD_LONG_NAME     "Texas Instruments FM Radio"
+
+/* Flag info */
+#define FM_INTTASK_RUNNING            0
+#define FM_INTTASK_SCHEDULE_PENDING   1
+#define FM_FW_DW_INPROGRESS     2
+#define FM_CORE_READY                 3
+#define FM_CORE_TRANSPORT_READY       4
+#define FM_AF_SWITCH_INPROGRESS	      5
+#define FM_CORE_TX_XMITING	      6
+
+#define FM_TUNE_COMPLETE	      0x1
+#define FM_BAND_LIMIT		      0x2
+
+#define FM_DRV_TX_TIMEOUT      (5*HZ)	/* 5 seconds */
+#define FM_DRV_RX_SEEK_TIMEOUT (20*HZ)	/* 20 seconds */
+
+#define NO_OF_ENTRIES_IN_ARRAY(array) (sizeof(array) / sizeof(array[0]))
+
+#define fmerr(format, ...) \
+	printk(KERN_ERR "fmdrv: " format, ## __VA_ARGS__)
+#define fmwarn(format, ...) \
+	printk(KERN_WARNING "fmdrv: " format, ##__VA_ARGS__)
+#ifdef DEBUG
+#define fmdbg(format, ...) \
+	printk(KERN_DEBUG "fmdrv: " format, ## __VA_ARGS__)
+#else /* DEBUG */
+#define fmdbg(format, ...)
+#endif
+enum {
+	FM_MODE_OFF,
+	FM_MODE_TX,
+	FM_MODE_RX,
+	FM_MODE_ENTRY_MAX
+};
+
+#define FM_RX_RDS_INFO_FIELD_MAX	8	/* 4 Group * 2 Bytes */
+
+/* RX RDS data format */
+struct fm_rdsdata_format {
+	union {
+		struct {
+			u8 buff[FM_RX_RDS_INFO_FIELD_MAX];
+		} groupdatabuff;
+		struct {
+			u16 pidata;
+			u8 blk_b[2];
+			u8 blk_c[2];
+			u8 blk_d[2];
+		} groupgeneral;
+		struct {
+			u16 pidata;
+			u8 blk_b[2];
+			u8 af[2];
+			u8 ps[2];
+		} group0A;
+		struct {
+			u16 pi[2];
+			u8 blk_b[2];
+			u8 ps[2];
+		} group0B;
+	} data;
+};
+
+/* FM region (Europe/US, Japan) info */
+struct region_info {
+	u32 chanl_space;
+	u32 bot_freq;
+	u32 top_freq;
+	u8 fm_band;
+};
+struct fmdev;
+typedef void (*int_handler_prototype) (struct fmdev *);
+
+/* FM Interrupt processing related info */
+struct fm_irq {
+	u8 stage;
+	u16 flag;	/* FM interrupt flag */
+	u16 mask;	/* FM interrupt mask */
+	/* Interrupt process timeout handler */
+	struct timer_list timer;
+	u8 retry;
+	int_handler_prototype *handlers;
+};
+
+/* RDS info */
+struct fm_rds {
+	u8 flag;	/* RX RDS on/off status */
+	u8 last_blk_idx;	/* Last received RDS block */
+
+	/* RDS buffer */
+	wait_queue_head_t read_queue;
+	u32 buf_size;	/* Size is always multiple of 3 */
+	u32 wr_idx;
+	u32 rd_idx;
+	u8 *buff;
+};
+
+#define FM_RDS_MAX_AF_LIST		25
+
+/*
+ * Current RX channel Alternate Frequency cache.
+ * This info is used to switch to other freq (AF)
+ * when current channel signal strengh is below RSSI threshold.
+ */
+struct tuned_station_info {
+	u16 picode;
+	u32 af_cache[FM_RDS_MAX_AF_LIST];
+	u8 afcache_size;
+	u8 af_list_max;
+};
+
+/* FM RX mode info */
+struct fm_rx {
+	struct region_info region;	/* Current selected band */
+	u32 freq;	/* Current RX frquency */
+	u8 mute_mode;	/* Current mute mode */
+	u8 deemphasis_mode; /* Current deemphasis mode */
+	/* RF dependent soft mute mode */
+	u8 rf_depend_mute;
+	u16 volume;	/* Current volume level */
+	u16 rssi_threshold;	/* Current RSSI threshold level */
+	/* Holds the index of the current AF jump */
+	u8 afjump_idx;
+	/* Will hold the frequency before the jump */
+	u32 freq_before_jump;
+	u8 rds_mode;	/* RDS operation mode (RDS/RDBS) */
+	u8 af_mode;	/* Alternate frequency on/off */
+	struct tuned_station_info stat_info;
+	struct fm_rds rds;
+};
+
+#define FMTX_RDS_TXT_STR_SIZE	25
+/*
+ * FM TX RDS data
+ *
+ * @ text_type: is the text following PS or RT
+ * @ text: radio text string which could either be PS or RT
+ * @ af_freq: alternate frequency for Tx
+ * TODO: to be declared in application
+ */
+struct tx_rds {
+	u8 text_type;
+	u8 text[FMTX_RDS_TXT_STR_SIZE];
+	u8 flag;
+	u32 af_freq;
+};
+/*
+ * FM TX global data
+ *
+ * @ pwr_lvl: Power Level of the Transmission from mixer control
+ * @ xmit_state: Transmission state = Updated locally upon Start/Stop
+ * @ audio_io: i2S/Analog
+ * @ tx_frq: Transmission frequency
+ */
+struct fmtx_data {
+	u8 pwr_lvl;
+	u8 xmit_state;
+	u8 audio_io;
+	u8 region;
+	u16 aud_mode;
+	u32 preemph;
+	u32 tx_frq;
+	struct tx_rds rds;
+};
+
+/* FM driver operation structure */
+struct fmdev {
+	struct video_device *radio_dev;	/* V4L2 video device pointer */
+	struct snd_card *card;	/* Card which holds FM mixer controls */
+	u16 asci_id;
+	spinlock_t rds_buff_lock; /* To protect access to RDS buffer */
+	spinlock_t resp_skb_lock; /* To protect access to received SKB */
+
+	long flag;		/*  FM driver state machine info */
+	u8 streg_cbdata; /* status of ST registration */
+
+	struct sk_buff_head rx_q;	/* RX queue */
+	struct tasklet_struct rx_task;	/* RX Tasklet */
+
+	struct sk_buff_head tx_q;	/* TX queue */
+	struct tasklet_struct tx_task;	/* TX Tasklet */
+	unsigned long last_tx_jiffies;	/* Timestamp of last pkt sent */
+	atomic_t tx_cnt;	/* Number of packets can send at a time */
+
+	struct sk_buff *resp_skb;	/* Response from the chip */
+	/* Main task completion handler */
+	struct completion maintask_comp;
+	/* Opcode of last command sent to the chip */
+	u8 pre_op;
+	/* Handler used for wakeup when response packet is received */
+	struct completion *resp_comp;
+	struct fm_irq irq_info;
+	u8 curr_fmmode; /* Current FM chip mode (TX, RX, OFF) */
+	struct fm_rx rx;	/* FM receiver info */
+	struct fmtx_data tx_data;
+
+	/* V4L2 ctrl framwork handler*/
+	struct v4l2_ctrl_handler ctrl_handler;
+
+	/* For core assisted locking */
+	struct mutex mutex;
+};
+#endif
diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
new file mode 100644
index 00000000000..64454d39c0c
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -0,0 +1,1677 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *
+ *  This sub-module of FM driver is common for FM RX and TX
+ *  functionality. This module is responsible for:
+ *  1) Forming group of Channel-8 commands to perform particular
+ *     functionality (eg., frequency set require more than
+ *     one Channel-8 command to be sent to the chip).
+ *  2) Sending each Channel-8 command to the chip and reading
+ *     response back over Shared Transport.
+ *  3) Managing TX and RX Queues and Tasklets.
+ *  4) Handling FM Interrupt packet and taking appropriate action.
+ *  5) Loading FM firmware to the chip (common, FM TX, and FM RX
+ *     firmware files based on mode selection)
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *  Author: Raja Mani <raja_mani@ti.com>
+ *  Author: Manjunatha Halli <manjunatha_halli@ti.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+#include "fmdrv.h"
+#include "fmdrv_v4l2.h"
+#include "fmdrv_common.h"
+#include <linux/ti_wilink_st.h>
+#include "fmdrv_rx.h"
+#include "fmdrv_tx.h"
+
+/* Region info */
+static struct region_info region_configs[] = {
+	/* Europe/US */
+	{
+	 .chanl_space = FM_CHANNEL_SPACING_200KHZ * FM_FREQ_MUL,
+	 .bot_freq = 87500,	/* 87.5 MHz */
+	 .top_freq = 108000,	/* 108 MHz */
+	 .fm_band = 0,
+	 },
+	/* Japan */
+	{
+	 .chanl_space = FM_CHANNEL_SPACING_200KHZ * FM_FREQ_MUL,
+	 .bot_freq = 76000,	/* 76 MHz */
+	 .top_freq = 90000,	/* 90 MHz */
+	 .fm_band = 1,
+	 },
+};
+
+/* Band selection */
+static u8 default_radio_region;	/* Europe/US */
+module_param(default_radio_region, byte, 0);
+MODULE_PARM_DESC(default_radio_region, "Region: 0=Europe/US, 1=Japan");
+
+/* RDS buffer blocks */
+static u32 default_rds_buf = 300;
+module_param(default_rds_buf, uint, 0444);
+MODULE_PARM_DESC(rds_buf, "RDS buffer entries");
+
+/* Radio Nr */
+static u32 radio_nr = -1;
+module_param(radio_nr, int, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio Nr");
+
+/* FM irq handlers forward declaration */
+static void fm_irq_send_flag_getcmd(struct fmdev *);
+static void fm_irq_handle_flag_getcmd_resp(struct fmdev *);
+static void fm_irq_handle_hw_malfunction(struct fmdev *);
+static void fm_irq_handle_rds_start(struct fmdev *);
+static void fm_irq_send_rdsdata_getcmd(struct fmdev *);
+static void fm_irq_handle_rdsdata_getcmd_resp(struct fmdev *);
+static void fm_irq_handle_rds_finish(struct fmdev *);
+static void fm_irq_handle_tune_op_ended(struct fmdev *);
+static void fm_irq_handle_power_enb(struct fmdev *);
+static void fm_irq_handle_low_rssi_start(struct fmdev *);
+static void fm_irq_afjump_set_pi(struct fmdev *);
+static void fm_irq_handle_set_pi_resp(struct fmdev *);
+static void fm_irq_afjump_set_pimask(struct fmdev *);
+static void fm_irq_handle_set_pimask_resp(struct fmdev *);
+static void fm_irq_afjump_setfreq(struct fmdev *);
+static void fm_irq_handle_setfreq_resp(struct fmdev *);
+static void fm_irq_afjump_enableint(struct fmdev *);
+static void fm_irq_afjump_enableint_resp(struct fmdev *);
+static void fm_irq_start_afjump(struct fmdev *);
+static void fm_irq_handle_start_afjump_resp(struct fmdev *);
+static void fm_irq_afjump_rd_freq(struct fmdev *);
+static void fm_irq_afjump_rd_freq_resp(struct fmdev *);
+static void fm_irq_handle_low_rssi_finish(struct fmdev *);
+static void fm_irq_send_intmsk_cmd(struct fmdev *);
+static void fm_irq_handle_intmsk_cmd_resp(struct fmdev *);
+
+/*
+ * When FM common module receives interrupt packet, following handlers
+ * will be executed one after another to service the interrupt(s)
+ */
+enum fmc_irq_handler_index {
+	FM_SEND_FLAG_GETCMD_IDX,
+	FM_HANDLE_FLAG_GETCMD_RESP_IDX,
+
+	/* HW malfunction irq handler */
+	FM_HW_MAL_FUNC_IDX,
+
+	/* RDS threshold reached irq handler */
+	FM_RDS_START_IDX,
+	FM_RDS_SEND_RDS_GETCMD_IDX,
+	FM_RDS_HANDLE_RDS_GETCMD_RESP_IDX,
+	FM_RDS_FINISH_IDX,
+
+	/* Tune operation ended irq handler */
+	FM_HW_TUNE_OP_ENDED_IDX,
+
+	/* TX power enable irq handler */
+	FM_HW_POWER_ENB_IDX,
+
+	/* Low RSSI irq handler */
+	FM_LOW_RSSI_START_IDX,
+	FM_AF_JUMP_SETPI_IDX,
+	FM_AF_JUMP_HANDLE_SETPI_RESP_IDX,
+	FM_AF_JUMP_SETPI_MASK_IDX,
+	FM_AF_JUMP_HANDLE_SETPI_MASK_RESP_IDX,
+	FM_AF_JUMP_SET_AF_FREQ_IDX,
+	FM_AF_JUMP_HANDLE_SET_AFFREQ_RESP_IDX,
+	FM_AF_JUMP_ENABLE_INT_IDX,
+	FM_AF_JUMP_ENABLE_INT_RESP_IDX,
+	FM_AF_JUMP_START_AFJUMP_IDX,
+	FM_AF_JUMP_HANDLE_START_AFJUMP_RESP_IDX,
+	FM_AF_JUMP_RD_FREQ_IDX,
+	FM_AF_JUMP_RD_FREQ_RESP_IDX,
+	FM_LOW_RSSI_FINISH_IDX,
+
+	/* Interrupt process post action */
+	FM_SEND_INTMSK_CMD_IDX,
+	FM_HANDLE_INTMSK_CMD_RESP_IDX,
+};
+
+/* FM interrupt handler table */
+static int_handler_prototype int_handler_table[] = {
+	fm_irq_send_flag_getcmd,
+	fm_irq_handle_flag_getcmd_resp,
+	fm_irq_handle_hw_malfunction,
+	fm_irq_handle_rds_start, /* RDS threshold reached irq handler */
+	fm_irq_send_rdsdata_getcmd,
+	fm_irq_handle_rdsdata_getcmd_resp,
+	fm_irq_handle_rds_finish,
+	fm_irq_handle_tune_op_ended,
+	fm_irq_handle_power_enb, /* TX power enable irq handler */
+	fm_irq_handle_low_rssi_start,
+	fm_irq_afjump_set_pi,
+	fm_irq_handle_set_pi_resp,
+	fm_irq_afjump_set_pimask,
+	fm_irq_handle_set_pimask_resp,
+	fm_irq_afjump_setfreq,
+	fm_irq_handle_setfreq_resp,
+	fm_irq_afjump_enableint,
+	fm_irq_afjump_enableint_resp,
+	fm_irq_start_afjump,
+	fm_irq_handle_start_afjump_resp,
+	fm_irq_afjump_rd_freq,
+	fm_irq_afjump_rd_freq_resp,
+	fm_irq_handle_low_rssi_finish,
+	fm_irq_send_intmsk_cmd, /* Interrupt process post action */
+	fm_irq_handle_intmsk_cmd_resp
+};
+
+long (*g_st_write) (struct sk_buff *skb);
+static struct completion wait_for_fmdrv_reg_comp;
+
+static inline void fm_irq_call(struct fmdev *fmdev)
+{
+	fmdev->irq_info.handlers[fmdev->irq_info.stage](fmdev);
+}
+
+/* Continue next function in interrupt handler table */
+static inline void fm_irq_call_stage(struct fmdev *fmdev, u8 stage)
+{
+	fmdev->irq_info.stage = stage;
+	fm_irq_call(fmdev);
+}
+
+static inline void fm_irq_timeout_stage(struct fmdev *fmdev, u8 stage)
+{
+	fmdev->irq_info.stage = stage;
+	mod_timer(&fmdev->irq_info.timer, jiffies + FM_DRV_TX_TIMEOUT);
+}
+
+#ifdef FM_DUMP_TXRX_PKT
+ /* To dump outgoing FM Channel-8 packets */
+inline void dump_tx_skb_data(struct sk_buff *skb)
+{
+	int len, len_org;
+	u8 index;
+	struct fm_cmd_msg_hdr *cmd_hdr;
+
+	cmd_hdr = (struct fm_cmd_msg_hdr *)skb->data;
+	printk(KERN_INFO "<<%shdr:%02x len:%02x opcode:%02x type:%s dlen:%02x",
+	       fm_cb(skb)->completion ? " " : "*", cmd_hdr->hdr,
+	       cmd_hdr->len, cmd_hdr->op,
+	       cmd_hdr->rd_wr ? "RD" : "WR", cmd_hdr->dlen);
+
+	len_org = skb->len - FM_CMD_MSG_HDR_SIZE;
+	if (len_org > 0) {
+		printk("\n   data(%d): ", cmd_hdr->dlen);
+		len = min(len_org, 14);
+		for (index = 0; index < len; index++)
+			printk("%x ",
+			       skb->data[FM_CMD_MSG_HDR_SIZE + index]);
+		printk("%s", (len_org > 14) ? ".." : "");
+	}
+	printk("\n");
+}
+
+ /* To dump incoming FM Channel-8 packets */
+inline void dump_rx_skb_data(struct sk_buff *skb)
+{
+	int len, len_org;
+	u8 index;
+	struct fm_event_msg_hdr *evt_hdr;
+
+	evt_hdr = (struct fm_event_msg_hdr *)skb->data;
+	printk(KERN_INFO ">> hdr:%02x len:%02x sts:%02x numhci:%02x "
+	    "opcode:%02x type:%s dlen:%02x", evt_hdr->hdr, evt_hdr->len,
+	    evt_hdr->status, evt_hdr->num_fm_hci_cmds, evt_hdr->op,
+	    (evt_hdr->rd_wr) ? "RD" : "WR", evt_hdr->dlen);
+
+	len_org = skb->len - FM_EVT_MSG_HDR_SIZE;
+	if (len_org > 0) {
+		printk("\n   data(%d): ", evt_hdr->dlen);
+		len = min(len_org, 14);
+		for (index = 0; index < len; index++)
+			printk("%x ",
+			       skb->data[FM_EVT_MSG_HDR_SIZE + index]);
+		printk("%s", (len_org > 14) ? ".." : "");
+	}
+	printk("\n");
+}
+#endif
+
+void fmc_update_region_info(struct fmdev *fmdev, u8 region_to_set)
+{
+	fmdev->rx.region = region_configs[region_to_set];
+}
+
+/*
+ * FM common sub-module will schedule this tasklet whenever it receives
+ * FM packet from ST driver.
+ */
+static void recv_tasklet(unsigned long arg)
+{
+	struct fmdev *fmdev;
+	struct fm_irq *irq_info;
+	struct fm_event_msg_hdr *evt_hdr;
+	struct sk_buff *skb;
+	u8 num_fm_hci_cmds;
+	unsigned long flags;
+
+	fmdev = (struct fmdev *)arg;
+	irq_info = &fmdev->irq_info;
+	/* Process all packets in the RX queue */
+	while ((skb = skb_dequeue(&fmdev->rx_q))) {
+		if (skb->len < sizeof(struct fm_event_msg_hdr)) {
+			fmerr("skb(%p) has only %d bytes, "
+				"at least need %zu bytes to decode\n", skb,
+				skb->len, sizeof(struct fm_event_msg_hdr));
+			kfree_skb(skb);
+			continue;
+		}
+
+		evt_hdr = (void *)skb->data;
+		num_fm_hci_cmds = evt_hdr->num_fm_hci_cmds;
+
+		/* FM interrupt packet? */
+		if (evt_hdr->op == FM_INTERRUPT) {
+			/* FM interrupt handler started already? */
+			if (!test_bit(FM_INTTASK_RUNNING, &fmdev->flag)) {
+				set_bit(FM_INTTASK_RUNNING, &fmdev->flag);
+				if (irq_info->stage != 0) {
+					fmerr("Inval stage resetting to zero\n");
+					irq_info->stage = 0;
+				}
+
+				/*
+				 * Execute first function in interrupt handler
+				 * table.
+				 */
+				irq_info->handlers[irq_info->stage](fmdev);
+			} else {
+				set_bit(FM_INTTASK_SCHEDULE_PENDING, &fmdev->flag);
+			}
+			kfree_skb(skb);
+		}
+		/* Anyone waiting for this with completion handler? */
+		else if (evt_hdr->op == fmdev->pre_op && fmdev->resp_comp != NULL) {
+
+			spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
+			fmdev->resp_skb = skb;
+			spin_unlock_irqrestore(&fmdev->resp_skb_lock, flags);
+			complete(fmdev->resp_comp);
+
+			fmdev->resp_comp = NULL;
+			atomic_set(&fmdev->tx_cnt, 1);
+		}
+		/* Is this for interrupt handler? */
+		else if (evt_hdr->op == fmdev->pre_op && fmdev->resp_comp == NULL) {
+			if (fmdev->resp_skb != NULL)
+				fmerr("Response SKB ptr not NULL\n");
+
+			spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
+			fmdev->resp_skb = skb;
+			spin_unlock_irqrestore(&fmdev->resp_skb_lock, flags);
+
+			/* Execute interrupt handler where state index points */
+			irq_info->handlers[irq_info->stage](fmdev);
+
+			kfree_skb(skb);
+			atomic_set(&fmdev->tx_cnt, 1);
+		} else {
+			fmerr("Nobody claimed SKB(%p),purging\n", skb);
+		}
+
+		/*
+		 * Check flow control field. If Num_FM_HCI_Commands field is
+		 * not zero, schedule FM TX tasklet.
+		 */
+		if (num_fm_hci_cmds && atomic_read(&fmdev->tx_cnt))
+			if (!skb_queue_empty(&fmdev->tx_q))
+				tasklet_schedule(&fmdev->tx_task);
+	}
+}
+
+/* FM send tasklet: is scheduled when FM packet has to be sent to chip */
+static void send_tasklet(unsigned long arg)
+{
+	struct fmdev *fmdev;
+	struct sk_buff *skb;
+	int len;
+
+	fmdev = (struct fmdev *)arg;
+
+	if (!atomic_read(&fmdev->tx_cnt))
+		return;
+
+	/* Check, is there any timeout happenned to last transmitted packet */
+	if ((jiffies - fmdev->last_tx_jiffies) > FM_DRV_TX_TIMEOUT) {
+		fmerr("TX timeout occurred\n");
+		atomic_set(&fmdev->tx_cnt, 1);
+	}
+
+	/* Send queued FM TX packets */
+	skb = skb_dequeue(&fmdev->tx_q);
+	if (!skb)
+		return;
+
+	atomic_dec(&fmdev->tx_cnt);
+	fmdev->pre_op = fm_cb(skb)->fm_op;
+
+	if (fmdev->resp_comp != NULL)
+		fmerr("Response completion handler is not NULL\n");
+
+	fmdev->resp_comp = fm_cb(skb)->completion;
+
+	/* Write FM packet to ST driver */
+	len = g_st_write(skb);
+	if (len < 0) {
+		kfree_skb(skb);
+		fmdev->resp_comp = NULL;
+		fmerr("TX tasklet failed to send skb(%p)\n", skb);
+		atomic_set(&fmdev->tx_cnt, 1);
+	} else {
+		fmdev->last_tx_jiffies = jiffies;
+	}
+}
+
+/*
+ * Queues FM Channel-8 packet to FM TX queue and schedules FM TX tasklet for
+ * transmission
+ */
+static u32 fm_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type,	void *payload,
+		int payload_len, struct completion *wait_completion)
+{
+	struct sk_buff *skb;
+	struct fm_cmd_msg_hdr *hdr;
+	int size;
+
+	if (fm_op >= FM_INTERRUPT) {
+		fmerr("Invalid fm opcode - %d\n", fm_op);
+		return -EINVAL;
+	}
+	if (test_bit(FM_FW_DW_INPROGRESS, &fmdev->flag) && payload == NULL) {
+		fmerr("Payload data is NULL during fw download\n");
+		return -EINVAL;
+	}
+	if (!test_bit(FM_FW_DW_INPROGRESS, &fmdev->flag))
+		size =
+		    FM_CMD_MSG_HDR_SIZE + ((payload == NULL) ? 0 : payload_len);
+	else
+		size = payload_len;
+
+	skb = alloc_skb(size, GFP_ATOMIC);
+	if (!skb) {
+		fmerr("No memory to create new SKB\n");
+		return -ENOMEM;
+	}
+	/*
+	 * Don't fill FM header info for the commands which come from
+	 * FM firmware file.
+	 */
+	if (!test_bit(FM_FW_DW_INPROGRESS, &fmdev->flag) ||
+			test_bit(FM_INTTASK_RUNNING, &fmdev->flag)) {
+		/* Fill command header info */
+		hdr = (struct fm_cmd_msg_hdr *)skb_put(skb, FM_CMD_MSG_HDR_SIZE);
+		hdr->hdr = FM_PKT_LOGICAL_CHAN_NUMBER;	/* 0x08 */
+
+		/* 3 (fm_opcode,rd_wr,dlen) + payload len) */
+		hdr->len = ((payload == NULL) ? 0 : payload_len) + 3;
+
+		/* FM opcode */
+		hdr->op = fm_op;
+
+		/* read/write type */
+		hdr->rd_wr = type;
+		hdr->dlen = payload_len;
+		fm_cb(skb)->fm_op = fm_op;
+
+		/*
+		 * If firmware download has finished and the command is
+		 * not a read command then payload is != NULL - a write
+		 * command with u16 payload - convert to be16
+		 */
+		if (payload != NULL)
+			*(u16 *)payload = cpu_to_be16(*(u16 *)payload);
+
+	} else if (payload != NULL) {
+		fm_cb(skb)->fm_op = *((u8 *)payload + 2);
+	}
+	if (payload != NULL)
+		memcpy(skb_put(skb, payload_len), payload, payload_len);
+
+	fm_cb(skb)->completion = wait_completion;
+	skb_queue_tail(&fmdev->tx_q, skb);
+	tasklet_schedule(&fmdev->tx_task);
+
+	return 0;
+}
+
+/* Sends FM Channel-8 command to the chip and waits for the response */
+u32 fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
+		unsigned int payload_len, void *response, int *response_len)
+{
+	struct sk_buff *skb;
+	struct fm_event_msg_hdr *evt_hdr;
+	unsigned long flags;
+	u32 ret;
+
+	init_completion(&fmdev->maintask_comp);
+	ret = fm_send_cmd(fmdev, fm_op, type, payload, payload_len,
+			    &fmdev->maintask_comp);
+	if (ret)
+		return ret;
+
+	ret = wait_for_completion_timeout(&fmdev->maintask_comp, FM_DRV_TX_TIMEOUT);
+	if (!ret) {
+		fmerr("Timeout(%d sec),didn't get reg"
+			   "completion signal from RX tasklet\n",
+			   jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000);
+		return -ETIMEDOUT;
+	}
+	if (!fmdev->resp_skb) {
+		fmerr("Reponse SKB is missing\n");
+		return -EFAULT;
+	}
+	spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
+	skb = fmdev->resp_skb;
+	fmdev->resp_skb = NULL;
+	spin_unlock_irqrestore(&fmdev->resp_skb_lock, flags);
+
+	evt_hdr = (void *)skb->data;
+	if (evt_hdr->status != 0) {
+		fmerr("Received event pkt status(%d) is not zero\n",
+			   evt_hdr->status);
+		kfree_skb(skb);
+		return -EIO;
+	}
+	/* Send response data to caller */
+	if (response != NULL && response_len != NULL && evt_hdr->dlen) {
+		/* Skip header info and copy only response data */
+		skb_pull(skb, sizeof(struct fm_event_msg_hdr));
+		memcpy(response, skb->data, evt_hdr->dlen);
+		*response_len = evt_hdr->dlen;
+	} else if (response_len != NULL && evt_hdr->dlen == 0) {
+		*response_len = 0;
+	}
+	kfree_skb(skb);
+
+	return 0;
+}
+
+/* --- Helper functions used in FM interrupt handlers ---*/
+static inline u32 check_cmdresp_status(struct fmdev *fmdev,
+		struct sk_buff **skb)
+{
+	struct fm_event_msg_hdr *fm_evt_hdr;
+	unsigned long flags;
+
+	del_timer(&fmdev->irq_info.timer);
+
+	spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
+	*skb = fmdev->resp_skb;
+	fmdev->resp_skb = NULL;
+	spin_unlock_irqrestore(&fmdev->resp_skb_lock, flags);
+
+	fm_evt_hdr = (void *)(*skb)->data;
+	if (fm_evt_hdr->status != 0) {
+		fmerr("irq: opcode %x response status is not zero "
+				"Initiating irq recovery process\n",
+				fm_evt_hdr->op);
+
+		mod_timer(&fmdev->irq_info.timer, jiffies + FM_DRV_TX_TIMEOUT);
+		return -1;
+	}
+
+	return 0;
+}
+
+static inline void fm_irq_common_cmd_resp_helper(struct fmdev *fmdev, u8 stage)
+{
+	struct sk_buff *skb;
+
+	if (!check_cmdresp_status(fmdev, &skb))
+		fm_irq_call_stage(fmdev, stage);
+}
+
+/*
+ * Interrupt process timeout handler.
+ * One of the irq handler did not get proper response from the chip. So take
+ * recovery action here. FM interrupts are disabled in the beginning of
+ * interrupt process. Therefore reset stage index to re-enable default
+ * interrupts. So that next interrupt will be processed as usual.
+ */
+static void int_timeout_handler(unsigned long data)
+{
+	struct fmdev *fmdev;
+	struct fm_irq *fmirq;
+
+	fmdbg("irq: timeout,trying to re-enable fm interrupts\n");
+	fmdev = (struct fmdev *)data;
+	fmirq = &fmdev->irq_info;
+	fmirq->retry++;
+
+	if (fmirq->retry > FM_IRQ_TIMEOUT_RETRY_MAX) {
+		/* Stop recovery action (interrupt reenable process) and
+		 * reset stage index & retry count values */
+		fmirq->stage = 0;
+		fmirq->retry = 0;
+		fmerr("Recovery action failed during"
+				"irq processing, max retry reached\n");
+		return;
+	}
+	fm_irq_call_stage(fmdev, FM_SEND_INTMSK_CMD_IDX);
+}
+
+/* --------- FM interrupt handlers ------------*/
+static void fm_irq_send_flag_getcmd(struct fmdev *fmdev)
+{
+	u16 flag;
+
+	/* Send FLAG_GET command , to know the source of interrupt */
+	if (!fm_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, sizeof(flag), NULL))
+		fm_irq_timeout_stage(fmdev, FM_HANDLE_FLAG_GETCMD_RESP_IDX);
+}
+
+static void fm_irq_handle_flag_getcmd_resp(struct fmdev *fmdev)
+{
+	struct sk_buff *skb;
+	struct fm_event_msg_hdr *fm_evt_hdr;
+
+	if (check_cmdresp_status(fmdev, &skb))
+		return;
+
+	fm_evt_hdr = (void *)skb->data;
+
+	/* Skip header info and copy only response data */
+	skb_pull(skb, sizeof(struct fm_event_msg_hdr));
+	memcpy(&fmdev->irq_info.flag, skb->data, fm_evt_hdr->dlen);
+
+	fmdev->irq_info.flag = be16_to_cpu(fmdev->irq_info.flag);
+	fmdbg("irq: flag register(0x%x)\n", fmdev->irq_info.flag);
+
+	/* Continue next function in interrupt handler table */
+	fm_irq_call_stage(fmdev, FM_HW_MAL_FUNC_IDX);
+}
+
+static void fm_irq_handle_hw_malfunction(struct fmdev *fmdev)
+{
+	if (fmdev->irq_info.flag & FM_MAL_EVENT & fmdev->irq_info.mask)
+		fmerr("irq: HW MAL int received - do nothing\n");
+
+	/* Continue next function in interrupt handler table */
+	fm_irq_call_stage(fmdev, FM_RDS_START_IDX);
+}
+
+static void fm_irq_handle_rds_start(struct fmdev *fmdev)
+{
+	if (fmdev->irq_info.flag & FM_RDS_EVENT & fmdev->irq_info.mask) {
+		fmdbg("irq: rds threshold reached\n");
+		fmdev->irq_info.stage = FM_RDS_SEND_RDS_GETCMD_IDX;
+	} else {
+		/* Continue next function in interrupt handler table */
+		fmdev->irq_info.stage = FM_HW_TUNE_OP_ENDED_IDX;
+	}
+
+	fm_irq_call(fmdev);
+}
+
+static void fm_irq_send_rdsdata_getcmd(struct fmdev *fmdev)
+{
+	/* Send the command to read RDS data from the chip */
+	if (!fm_send_cmd(fmdev, RDS_DATA_GET, REG_RD, NULL,
+			    (FM_RX_RDS_FIFO_THRESHOLD * 3), NULL))
+		fm_irq_timeout_stage(fmdev, FM_RDS_HANDLE_RDS_GETCMD_RESP_IDX);
+}
+
+/* Keeps track of current RX channel AF (Alternate Frequency) */
+static void fm_rx_update_af_cache(struct fmdev *fmdev, u8 af)
+{
+	struct tuned_station_info *stat_info = &fmdev->rx.stat_info;
+	u8 reg_idx = fmdev->rx.region.fm_band;
+	u8 index;
+	u32 freq;
+
+	/* First AF indicates the number of AF follows. Reset the list */
+	if ((af >= FM_RDS_1_AF_FOLLOWS) && (af <= FM_RDS_25_AF_FOLLOWS)) {
+		fmdev->rx.stat_info.af_list_max = (af - FM_RDS_1_AF_FOLLOWS + 1);
+		fmdev->rx.stat_info.afcache_size = 0;
+		fmdbg("No of expected AF : %d\n", fmdev->rx.stat_info.af_list_max);
+		return;
+	}
+
+	if (af < FM_RDS_MIN_AF)
+		return;
+	if (reg_idx == FM_BAND_EUROPE_US && af > FM_RDS_MAX_AF)
+		return;
+	if (reg_idx == FM_BAND_JAPAN && af > FM_RDS_MAX_AF_JAPAN)
+		return;
+
+	freq = fmdev->rx.region.bot_freq + (af * 100);
+	if (freq == fmdev->rx.freq) {
+		fmdbg("Current freq(%d) is matching with received AF(%d)\n",
+				fmdev->rx.freq, freq);
+		return;
+	}
+	/* Do check in AF cache */
+	for (index = 0; index < stat_info->afcache_size; index++) {
+		if (stat_info->af_cache[index] == freq)
+			break;
+	}
+	/* Reached the limit of the list - ignore the next AF */
+	if (index == stat_info->af_list_max) {
+		fmdbg("AF cache is full\n");
+		return;
+	}
+	/*
+	 * If we reached the end of the list then this AF is not
+	 * in the list - add it.
+	 */
+	if (index == stat_info->afcache_size) {
+		fmdbg("Storing AF %d to cache index %d\n", freq, index);
+		stat_info->af_cache[index] = freq;
+		stat_info->afcache_size++;
+	}
+}
+
+/*
+ * Converts RDS buffer data from big endian format
+ * to little endian format.
+ */
+static void fm_rdsparse_swapbytes(struct fmdev *fmdev,
+		struct fm_rdsdata_format *rds_format)
+{
+	u8 byte1;
+	u8 index = 0;
+	u8 *rds_buff;
+
+	/*
+	 * Since in Orca the 2 RDS Data bytes are in little endian and
+	 * in Dolphin they are in big endian, the parsing of the RDS data
+	 * is chip dependent
+	 */
+	if (fmdev->asci_id != 0x6350) {
+		rds_buff = &rds_format->data.groupdatabuff.buff[0];
+		while (index + 1 < FM_RX_RDS_INFO_FIELD_MAX) {
+			byte1 = rds_buff[index];
+			rds_buff[index] = rds_buff[index + 1];
+			rds_buff[index + 1] = byte1;
+			index += 2;
+		}
+	}
+}
+
+static void fm_irq_handle_rdsdata_getcmd_resp(struct fmdev *fmdev)
+{
+	struct sk_buff *skb;
+	struct fm_rdsdata_format rds_fmt;
+	struct fm_rds *rds = &fmdev->rx.rds;
+	unsigned long group_idx, flags;
+	u8 *rds_data, meta_data, tmpbuf[3];
+	u8 type, blk_idx;
+	u16 cur_picode;
+	u32 rds_len;
+
+	if (check_cmdresp_status(fmdev, &skb))
+		return;
+
+	/* Skip header info */
+	skb_pull(skb, sizeof(struct fm_event_msg_hdr));
+	rds_data = skb->data;
+	rds_len = skb->len;
+
+	/* Parse the RDS data */
+	while (rds_len >= FM_RDS_BLK_SIZE) {
+		meta_data = rds_data[2];
+		/* Get the type: 0=A, 1=B, 2=C, 3=C', 4=D, 5=E */
+		type = (meta_data & 0x07);
+
+		/* Transform the blk type into index sequence (0, 1, 2, 3, 4) */
+		blk_idx = (type <= FM_RDS_BLOCK_C ? type : (type - 1));
+		fmdbg("Block index:%d(%s)\n", blk_idx,
+			   (meta_data & FM_RDS_STATUS_ERR_MASK) ? "Bad" : "Ok");
+
+		if ((meta_data & FM_RDS_STATUS_ERR_MASK) != 0)
+			break;
+
+		if (blk_idx < FM_RDS_BLK_IDX_A || blk_idx > FM_RDS_BLK_IDX_D) {
+			fmdbg("Block sequence mismatch\n");
+			rds->last_blk_idx = -1;
+			break;
+		}
+
+		/* Skip checkword (control) byte and copy only data byte */
+		memcpy(&rds_fmt.data.groupdatabuff.
+				buff[blk_idx * (FM_RDS_BLK_SIZE - 1)],
+				rds_data, (FM_RDS_BLK_SIZE - 1));
+
+		rds->last_blk_idx = blk_idx;
+
+		/* If completed a whole group then handle it */
+		if (blk_idx == FM_RDS_BLK_IDX_D) {
+			fmdbg("Good block received\n");
+			fm_rdsparse_swapbytes(fmdev, &rds_fmt);
+
+			/*
+			 * Extract PI code and store in local cache.
+			 * We need this during AF switch processing.
+			 */
+			cur_picode = be16_to_cpu(rds_fmt.data.groupgeneral.pidata);
+			if (fmdev->rx.stat_info.picode != cur_picode)
+				fmdev->rx.stat_info.picode = cur_picode;
+
+			fmdbg("picode:%d\n", cur_picode);
+
+			group_idx = (rds_fmt.data.groupgeneral.blk_b[0] >> 3);
+			fmdbg("(fmdrv):Group:%ld%s\n", group_idx/2,
+					(group_idx % 2) ? "B" : "A");
+
+			group_idx = 1 << (rds_fmt.data.groupgeneral.blk_b[0] >> 3);
+			if (group_idx == FM_RDS_GROUP_TYPE_MASK_0A) {
+				fm_rx_update_af_cache(fmdev, rds_fmt.data.group0A.af[0]);
+				fm_rx_update_af_cache(fmdev, rds_fmt.data.group0A.af[1]);
+			}
+		}
+		rds_len -= FM_RDS_BLK_SIZE;
+		rds_data += FM_RDS_BLK_SIZE;
+	}
+
+	/* Copy raw rds data to internal rds buffer */
+	rds_data = skb->data;
+	rds_len = skb->len;
+
+	spin_lock_irqsave(&fmdev->rds_buff_lock, flags);
+	while (rds_len > 0) {
+		/*
+		 * Fill RDS buffer as per V4L2 specification.
+		 * Store control byte
+		 */
+		type = (rds_data[2] & 0x07);
+		blk_idx = (type <= FM_RDS_BLOCK_C ? type : (type - 1));
+		tmpbuf[2] = blk_idx;	/* Offset name */
+		tmpbuf[2] |= blk_idx << 3;	/* Received offset */
+
+		/* Store data byte */
+		tmpbuf[0] = rds_data[0];
+		tmpbuf[1] = rds_data[1];
+
+		memcpy(&rds->buff[rds->wr_idx], &tmpbuf, FM_RDS_BLK_SIZE);
+		rds->wr_idx = (rds->wr_idx + FM_RDS_BLK_SIZE) % rds->buf_size;
+
+		/* Check for overflow & start over */
+		if (rds->wr_idx == rds->rd_idx) {
+			fmdbg("RDS buffer overflow\n");
+			rds->wr_idx = 0;
+			rds->rd_idx = 0;
+			break;
+		}
+		rds_len -= FM_RDS_BLK_SIZE;
+		rds_data += FM_RDS_BLK_SIZE;
+	}
+	spin_unlock_irqrestore(&fmdev->rds_buff_lock, flags);
+
+	/* Wakeup read queue */
+	if (rds->wr_idx != rds->rd_idx)
+		wake_up_interruptible(&rds->read_queue);
+
+	fm_irq_call_stage(fmdev, FM_RDS_FINISH_IDX);
+}
+
+static void fm_irq_handle_rds_finish(struct fmdev *fmdev)
+{
+	fm_irq_call_stage(fmdev, FM_HW_TUNE_OP_ENDED_IDX);
+}
+
+static void fm_irq_handle_tune_op_ended(struct fmdev *fmdev)
+{
+	if (fmdev->irq_info.flag & (FM_FR_EVENT | FM_BL_EVENT) & fmdev->
+	    irq_info.mask) {
+		fmdbg("irq: tune ended/bandlimit reached\n");
+		if (test_and_clear_bit(FM_AF_SWITCH_INPROGRESS, &fmdev->flag)) {
+			fmdev->irq_info.stage = FM_AF_JUMP_RD_FREQ_IDX;
+		} else {
+			complete(&fmdev->maintask_comp);
+			fmdev->irq_info.stage = FM_HW_POWER_ENB_IDX;
+		}
+	} else
+		fmdev->irq_info.stage = FM_HW_POWER_ENB_IDX;
+
+	fm_irq_call(fmdev);
+}
+
+static void fm_irq_handle_power_enb(struct fmdev *fmdev)
+{
+	if (fmdev->irq_info.flag & FM_POW_ENB_EVENT) {
+		fmdbg("irq: Power Enabled/Disabled\n");
+		complete(&fmdev->maintask_comp);
+	}
+
+	fm_irq_call_stage(fmdev, FM_LOW_RSSI_START_IDX);
+}
+
+static void fm_irq_handle_low_rssi_start(struct fmdev *fmdev)
+{
+	if ((fmdev->rx.af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON) &&
+	    (fmdev->irq_info.flag & FM_LEV_EVENT & fmdev->irq_info.mask) &&
+	    (fmdev->rx.freq != FM_UNDEFINED_FREQ) &&
+	    (fmdev->rx.stat_info.afcache_size != 0)) {
+		fmdbg("irq: rssi level has fallen below threshold level\n");
+
+		/* Disable further low RSSI interrupts */
+		fmdev->irq_info.mask &= ~FM_LEV_EVENT;
+
+		fmdev->rx.afjump_idx = 0;
+		fmdev->rx.freq_before_jump = fmdev->rx.freq;
+		fmdev->irq_info.stage = FM_AF_JUMP_SETPI_IDX;
+	} else {
+		/* Continue next function in interrupt handler table */
+		fmdev->irq_info.stage = FM_SEND_INTMSK_CMD_IDX;
+	}
+
+	fm_irq_call(fmdev);
+}
+
+static void fm_irq_afjump_set_pi(struct fmdev *fmdev)
+{
+	u16 payload;
+
+	/* Set PI code - must be updated if the AF list is not empty */
+	payload = fmdev->rx.stat_info.picode;
+	if (!fm_send_cmd(fmdev, RDS_PI_SET, REG_WR, &payload, sizeof(payload), NULL))
+		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_HANDLE_SETPI_RESP_IDX);
+}
+
+static void fm_irq_handle_set_pi_resp(struct fmdev *fmdev)
+{
+	fm_irq_common_cmd_resp_helper(fmdev, FM_AF_JUMP_SETPI_MASK_IDX);
+}
+
+/*
+ * Set PI mask.
+ * 0xFFFF = Enable PI code matching
+ * 0x0000 = Disable PI code matching
+ */
+static void fm_irq_afjump_set_pimask(struct fmdev *fmdev)
+{
+	u16 payload;
+
+	payload = 0x0000;
+	if (!fm_send_cmd(fmdev, RDS_PI_MASK_SET, REG_WR, &payload, sizeof(payload), NULL))
+		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_HANDLE_SETPI_MASK_RESP_IDX);
+}
+
+static void fm_irq_handle_set_pimask_resp(struct fmdev *fmdev)
+{
+	fm_irq_common_cmd_resp_helper(fmdev, FM_AF_JUMP_SET_AF_FREQ_IDX);
+}
+
+static void fm_irq_afjump_setfreq(struct fmdev *fmdev)
+{
+	u16 frq_index;
+	u16 payload;
+
+	fmdbg("Swtich to %d KHz\n", fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx]);
+	frq_index = (fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx] -
+	     fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
+
+	payload = frq_index;
+	if (!fm_send_cmd(fmdev, AF_FREQ_SET, REG_WR, &payload, sizeof(payload), NULL))
+		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_HANDLE_SET_AFFREQ_RESP_IDX);
+}
+
+static void fm_irq_handle_setfreq_resp(struct fmdev *fmdev)
+{
+	fm_irq_common_cmd_resp_helper(fmdev, FM_AF_JUMP_ENABLE_INT_IDX);
+}
+
+static void fm_irq_afjump_enableint(struct fmdev *fmdev)
+{
+	u16 payload;
+
+	/* Enable FR (tuning operation ended) interrupt */
+	payload = FM_FR_EVENT;
+	if (!fm_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload, sizeof(payload), NULL))
+		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_ENABLE_INT_RESP_IDX);
+}
+
+static void fm_irq_afjump_enableint_resp(struct fmdev *fmdev)
+{
+	fm_irq_common_cmd_resp_helper(fmdev, FM_AF_JUMP_START_AFJUMP_IDX);
+}
+
+static void fm_irq_start_afjump(struct fmdev *fmdev)
+{
+	u16 payload;
+
+	payload = FM_TUNER_AF_JUMP_MODE;
+	if (!fm_send_cmd(fmdev, TUNER_MODE_SET, REG_WR, &payload,
+			sizeof(payload), NULL))
+		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_HANDLE_START_AFJUMP_RESP_IDX);
+}
+
+static void fm_irq_handle_start_afjump_resp(struct fmdev *fmdev)
+{
+	struct sk_buff *skb;
+
+	if (check_cmdresp_status(fmdev, &skb))
+		return;
+
+	fmdev->irq_info.stage = FM_SEND_FLAG_GETCMD_IDX;
+	set_bit(FM_AF_SWITCH_INPROGRESS, &fmdev->flag);
+	clear_bit(FM_INTTASK_RUNNING, &fmdev->flag);
+}
+
+static void fm_irq_afjump_rd_freq(struct fmdev *fmdev)
+{
+	u16 payload;
+
+	if (!fm_send_cmd(fmdev, FREQ_SET, REG_RD, NULL, sizeof(payload), NULL))
+		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_RD_FREQ_RESP_IDX);
+}
+
+static void fm_irq_afjump_rd_freq_resp(struct fmdev *fmdev)
+{
+	struct sk_buff *skb;
+	u16 read_freq;
+	u32 curr_freq, jumped_freq;
+
+	if (check_cmdresp_status(fmdev, &skb))
+		return;
+
+	/* Skip header info and copy only response data */
+	skb_pull(skb, sizeof(struct fm_event_msg_hdr));
+	memcpy(&read_freq, skb->data, sizeof(read_freq));
+	read_freq = be16_to_cpu(read_freq);
+	curr_freq = fmdev->rx.region.bot_freq + ((u32)read_freq * FM_FREQ_MUL);
+
+	jumped_freq = fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx];
+
+	/* If the frequency was changed the jump succeeded */
+	if ((curr_freq != fmdev->rx.freq_before_jump) && (curr_freq == jumped_freq)) {
+		fmdbg("Successfully switched to alternate freq %d\n", curr_freq);
+		fmdev->rx.freq = curr_freq;
+		fm_rx_reset_rds_cache(fmdev);
+
+		/* AF feature is on, enable low level RSSI interrupt */
+		if (fmdev->rx.af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON)
+			fmdev->irq_info.mask |= FM_LEV_EVENT;
+
+		fmdev->irq_info.stage = FM_LOW_RSSI_FINISH_IDX;
+	} else {		/* jump to the next freq in the AF list */
+		fmdev->rx.afjump_idx++;
+
+		/* If we reached the end of the list - stop searching */
+		if (fmdev->rx.afjump_idx >= fmdev->rx.stat_info.afcache_size) {
+			fmdbg("AF switch processing failed\n");
+			fmdev->irq_info.stage = FM_LOW_RSSI_FINISH_IDX;
+		} else {	/* AF List is not over - try next one */
+
+			fmdbg("Trying next freq in AF cache\n");
+			fmdev->irq_info.stage = FM_AF_JUMP_SETPI_IDX;
+		}
+	}
+	fm_irq_call(fmdev);
+}
+
+static void fm_irq_handle_low_rssi_finish(struct fmdev *fmdev)
+{
+	fm_irq_call_stage(fmdev, FM_SEND_INTMSK_CMD_IDX);
+}
+
+static void fm_irq_send_intmsk_cmd(struct fmdev *fmdev)
+{
+	u16 payload;
+
+	/* Re-enable FM interrupts */
+	payload = fmdev->irq_info.mask;
+
+	if (!fm_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+			sizeof(payload), NULL))
+		fm_irq_timeout_stage(fmdev, FM_HANDLE_INTMSK_CMD_RESP_IDX);
+}
+
+static void fm_irq_handle_intmsk_cmd_resp(struct fmdev *fmdev)
+{
+	struct sk_buff *skb;
+
+	if (check_cmdresp_status(fmdev, &skb))
+		return;
+	/*
+	 * This is last function in interrupt table to be executed.
+	 * So, reset stage index to 0.
+	 */
+	fmdev->irq_info.stage = FM_SEND_FLAG_GETCMD_IDX;
+
+	/* Start processing any pending interrupt */
+	if (test_and_clear_bit(FM_INTTASK_SCHEDULE_PENDING, &fmdev->flag))
+		fmdev->irq_info.handlers[fmdev->irq_info.stage](fmdev);
+	else
+		clear_bit(FM_INTTASK_RUNNING, &fmdev->flag);
+}
+
+/* Returns availability of RDS data in internel buffer */
+u32 fmc_is_rds_data_available(struct fmdev *fmdev, struct file *file,
+				struct poll_table_struct *pts)
+{
+	poll_wait(file, &fmdev->rx.rds.read_queue, pts);
+	if (fmdev->rx.rds.rd_idx != fmdev->rx.rds.wr_idx)
+		return 0;
+
+	return -EAGAIN;
+}
+
+/* Copies RDS data from internal buffer to user buffer */
+u32 fmc_transfer_rds_from_internal_buff(struct fmdev *fmdev, struct file *file,
+		u8 __user *buf, size_t count)
+{
+	u32 block_count;
+	unsigned long flags;
+	int ret;
+
+	if (fmdev->rx.rds.wr_idx == fmdev->rx.rds.rd_idx) {
+		if (file->f_flags & O_NONBLOCK)
+			return -EWOULDBLOCK;
+
+		ret = wait_event_interruptible(fmdev->rx.rds.read_queue,
+				(fmdev->rx.rds.wr_idx != fmdev->rx.rds.rd_idx));
+		if (ret)
+			return -EINTR;
+	}
+
+	/* Calculate block count from byte count */
+	count /= 3;
+	block_count = 0;
+	ret = 0;
+
+	spin_lock_irqsave(&fmdev->rds_buff_lock, flags);
+
+	while (block_count < count) {
+		if (fmdev->rx.rds.wr_idx == fmdev->rx.rds.rd_idx)
+			break;
+
+		if (copy_to_user(buf, &fmdev->rx.rds.buff[fmdev->rx.rds.rd_idx],
+					FM_RDS_BLK_SIZE))
+			break;
+
+		fmdev->rx.rds.rd_idx += FM_RDS_BLK_SIZE;
+		if (fmdev->rx.rds.rd_idx >= fmdev->rx.rds.buf_size)
+			fmdev->rx.rds.rd_idx = 0;
+
+		block_count++;
+		buf += FM_RDS_BLK_SIZE;
+		ret += FM_RDS_BLK_SIZE;
+	}
+	spin_unlock_irqrestore(&fmdev->rds_buff_lock, flags);
+	return ret;
+}
+
+u32 fmc_set_freq(struct fmdev *fmdev, u32 freq_to_set)
+{
+	switch (fmdev->curr_fmmode) {
+	case FM_MODE_RX:
+		return fm_rx_set_freq(fmdev, freq_to_set);
+
+	case FM_MODE_TX:
+		return fm_tx_set_freq(fmdev, freq_to_set);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+u32 fmc_get_freq(struct fmdev *fmdev, u32 *cur_tuned_frq)
+{
+	if (fmdev->rx.freq == FM_UNDEFINED_FREQ) {
+		fmerr("RX frequency is not set\n");
+		return -EPERM;
+	}
+	if (cur_tuned_frq == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	switch (fmdev->curr_fmmode) {
+	case FM_MODE_RX:
+		*cur_tuned_frq = fmdev->rx.freq;
+		return 0;
+
+	case FM_MODE_TX:
+		*cur_tuned_frq = 0;	/* TODO : Change this later */
+		return 0;
+
+	default:
+		return -EINVAL;
+	}
+
+}
+
+u32 fmc_set_region(struct fmdev *fmdev, u8 region_to_set)
+{
+	switch (fmdev->curr_fmmode) {
+	case FM_MODE_RX:
+		return fm_rx_set_region(fmdev, region_to_set);
+
+	case FM_MODE_TX:
+		return fm_tx_set_region(fmdev, region_to_set);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+u32 fmc_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
+{
+	switch (fmdev->curr_fmmode) {
+	case FM_MODE_RX:
+		return fm_rx_set_mute_mode(fmdev, mute_mode_toset);
+
+	case FM_MODE_TX:
+		return fm_tx_set_mute_mode(fmdev, mute_mode_toset);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+u32 fmc_set_stereo_mono(struct fmdev *fmdev, u16 mode)
+{
+	switch (fmdev->curr_fmmode) {
+	case FM_MODE_RX:
+		return fm_rx_set_stereo_mono(fmdev, mode);
+
+	case FM_MODE_TX:
+		return fm_tx_set_stereo_mono(fmdev, mode);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+u32 fmc_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
+{
+	switch (fmdev->curr_fmmode) {
+	case FM_MODE_RX:
+		return fm_rx_set_rds_mode(fmdev, rds_en_dis);
+
+	case FM_MODE_TX:
+		return fm_tx_set_rds_mode(fmdev, rds_en_dis);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+/* Sends power off command to the chip */
+static u32 fm_power_down(struct fmdev *fmdev)
+{
+	u16 payload;
+	u32 ret;
+
+	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
+		fmerr("FM core is not ready\n");
+		return -EPERM;
+	}
+	if (fmdev->curr_fmmode == FM_MODE_OFF) {
+		fmdbg("FM chip is already in OFF state\n");
+		return 0;
+	}
+
+	payload = 0x0;
+	ret = fmc_send_cmd(fmdev, FM_POWER_MODE, REG_WR, &payload,
+		sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	return fmc_release(fmdev);
+}
+
+/* Reads init command from FM firmware file and loads to the chip */
+static u32 fm_download_firmware(struct fmdev *fmdev, const u8 *fw_name)
+{
+	const struct firmware *fw_entry;
+	struct bts_header *fw_header;
+	struct bts_action *action;
+	struct bts_action_delay *delay;
+	u8 *fw_data;
+	int ret, fw_len, cmd_cnt;
+
+	cmd_cnt = 0;
+	set_bit(FM_FW_DW_INPROGRESS, &fmdev->flag);
+
+	ret = request_firmware(&fw_entry, fw_name,
+				&fmdev->radio_dev->dev);
+	if (ret < 0) {
+		fmerr("Unable to read firmware(%s) content\n", fw_name);
+		return ret;
+	}
+	fmdbg("Firmware(%s) length : %d bytes\n", fw_name, fw_entry->size);
+
+	fw_data = (void *)fw_entry->data;
+	fw_len = fw_entry->size;
+
+	fw_header = (struct bts_header *)fw_data;
+	if (fw_header->magic != FM_FW_FILE_HEADER_MAGIC) {
+		fmerr("%s not a legal TI firmware file\n", fw_name);
+		ret = -EINVAL;
+		goto rel_fw;
+	}
+	fmdbg("FW(%s) magic number : 0x%x\n", fw_name, fw_header->magic);
+
+	/* Skip file header info , we already verified it */
+	fw_data += sizeof(struct bts_header);
+	fw_len -= sizeof(struct bts_header);
+
+	while (fw_data && fw_len > 0) {
+		action = (struct bts_action *)fw_data;
+
+		switch (action->type) {
+		case ACTION_SEND_COMMAND:	/* Send */
+			if (fmc_send_cmd(fmdev, 0, 0, action->data,
+						action->size, NULL, NULL))
+				goto rel_fw;
+
+			cmd_cnt++;
+			break;
+
+		case ACTION_DELAY:	/* Delay */
+			delay = (struct bts_action_delay *)action->data;
+			mdelay(delay->msec);
+			break;
+		}
+
+		fw_data += (sizeof(struct bts_action) + (action->size));
+		fw_len -= (sizeof(struct bts_action) + (action->size));
+	}
+	fmdbg("Firmware commands(%d) loaded to chip\n", cmd_cnt);
+rel_fw:
+	release_firmware(fw_entry);
+	clear_bit(FM_FW_DW_INPROGRESS, &fmdev->flag);
+
+	return ret;
+}
+
+/* Loads default RX configuration to the chip */
+static u32 load_default_rx_configuration(struct fmdev *fmdev)
+{
+	int ret;
+
+	ret = fm_rx_set_volume(fmdev, FM_DEFAULT_RX_VOLUME);
+	if (ret < 0)
+		return ret;
+
+	return fm_rx_set_rssi_threshold(fmdev, FM_DEFAULT_RSSI_THRESHOLD);
+}
+
+/* Does FM power on sequence */
+static u32 fm_power_up(struct fmdev *fmdev, u8 mode)
+{
+	u16 payload, asic_id, asic_ver;
+	int resp_len, ret;
+	u8 fw_name[50];
+
+	if (mode >= FM_MODE_ENTRY_MAX) {
+		fmerr("Invalid firmware download option\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Initialize FM common module. FM GPIO toggling is
+	 * taken care in Shared Transport driver.
+	 */
+	ret = fmc_prepare(fmdev);
+	if (ret < 0) {
+		fmerr("Unable to prepare FM Common\n");
+		return ret;
+	}
+
+	payload = FM_ENABLE;
+	if (fmc_send_cmd(fmdev, FM_POWER_MODE, REG_WR, &payload,
+			sizeof(payload), NULL, NULL))
+		goto rel;
+
+	/* Allow the chip to settle down in Channel-8 mode */
+	msleep(20);
+
+	if (fmc_send_cmd(fmdev, ASIC_ID_GET, REG_RD, NULL,
+			sizeof(asic_id), &asic_id, &resp_len))
+		goto rel;
+
+	if (fmc_send_cmd(fmdev, ASIC_VER_GET, REG_RD, NULL,
+			sizeof(asic_ver), &asic_ver, &resp_len))
+		goto rel;
+
+	fmdbg("ASIC ID: 0x%x , ASIC Version: %d\n",
+		be16_to_cpu(asic_id), be16_to_cpu(asic_ver));
+
+	sprintf(fw_name, "%s_%x.%d.bts", FM_FMC_FW_FILE_START,
+		be16_to_cpu(asic_id), be16_to_cpu(asic_ver));
+
+	ret = fm_download_firmware(fmdev, fw_name);
+	if (ret < 0) {
+		fmdbg("Failed to download firmware file %s\n", fw_name);
+		goto rel;
+	}
+	sprintf(fw_name, "%s_%x.%d.bts", (mode == FM_MODE_RX) ?
+			FM_RX_FW_FILE_START : FM_TX_FW_FILE_START,
+			be16_to_cpu(asic_id), be16_to_cpu(asic_ver));
+
+	ret = fm_download_firmware(fmdev, fw_name);
+	if (ret < 0) {
+		fmdbg("Failed to download firmware file %s\n", fw_name);
+		goto rel;
+	} else
+		return ret;
+rel:
+	return fmc_release(fmdev);
+}
+
+/* Set FM Modes(TX, RX, OFF) */
+u32 fmc_set_mode(struct fmdev *fmdev, u8 fm_mode)
+{
+	int ret = 0;
+
+	if (fm_mode >= FM_MODE_ENTRY_MAX) {
+		fmerr("Invalid FM mode\n");
+		return -EINVAL;
+	}
+	if (fmdev->curr_fmmode == fm_mode) {
+		fmdbg("Already fm is in mode(%d)\n", fm_mode);
+		return ret;
+	}
+
+	switch (fm_mode) {
+	case FM_MODE_OFF:	/* OFF Mode */
+		ret = fm_power_down(fmdev);
+		if (ret < 0) {
+			fmerr("Failed to set OFF mode\n");
+			return ret;
+		}
+		break;
+
+	case FM_MODE_TX:	/* TX Mode */
+	case FM_MODE_RX:	/* RX Mode */
+		/* Power down before switching to TX or RX mode */
+		if (fmdev->curr_fmmode != FM_MODE_OFF) {
+			ret = fm_power_down(fmdev);
+			if (ret < 0) {
+				fmerr("Failed to set OFF mode\n");
+				return ret;
+			}
+			msleep(30);
+		}
+		ret = fm_power_up(fmdev, fm_mode);
+		if (ret < 0) {
+			fmerr("Failed to load firmware\n");
+			return ret;
+		}
+	}
+	fmdev->curr_fmmode = fm_mode;
+
+	/* Set default configuration */
+	if (fmdev->curr_fmmode == FM_MODE_RX) {
+		fmdbg("Loading default rx configuration..\n");
+		ret = load_default_rx_configuration(fmdev);
+		if (ret < 0)
+			fmerr("Failed to load default values\n");
+	}
+
+	return ret;
+}
+
+/* Returns current FM mode (TX, RX, OFF) */
+u32 fmc_get_mode(struct fmdev *fmdev, u8 *fmmode)
+{
+	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
+		fmerr("FM core is not ready\n");
+		return -EPERM;
+	}
+	if (fmmode == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*fmmode = fmdev->curr_fmmode;
+	return 0;
+}
+
+/* Called by ST layer when FM packet is available */
+static long fm_st_receive(void *arg, struct sk_buff *skb)
+{
+	struct fmdev *fmdev;
+
+	fmdev = (struct fmdev *)arg;
+
+	if (skb == NULL) {
+		fmerr("Invalid SKB received from ST\n");
+		return -EFAULT;
+	}
+
+	if (skb->cb[0] != FM_PKT_LOGICAL_CHAN_NUMBER) {
+		fmerr("Received SKB (%p) is not FM Channel 8 pkt\n", skb);
+		return -EINVAL;
+	}
+
+	memcpy(skb_push(skb, 1), &skb->cb[0], 1);
+	skb_queue_tail(&fmdev->rx_q, skb);
+	tasklet_schedule(&fmdev->rx_task);
+
+	return 0;
+}
+
+/*
+ * Called by ST layer to indicate protocol registration completion
+ * status.
+ */
+static void fm_st_reg_comp_cb(void *arg, char data)
+{
+	struct fmdev *fmdev;
+
+	fmdev = (struct fmdev *)arg;
+	fmdev->streg_cbdata = data;
+	complete(&wait_for_fmdrv_reg_comp);
+}
+
+/*
+ * This function will be called from FM V4L2 open function.
+ * Register with ST driver and initialize driver data.
+ */
+u32 fmc_prepare(struct fmdev *fmdev)
+{
+	static struct st_proto_s fm_st_proto;
+	u32 ret;
+
+	if (test_bit(FM_CORE_READY, &fmdev->flag)) {
+		fmdbg("FM Core is already up\n");
+		return 0;
+	}
+
+	memset(&fm_st_proto, 0, sizeof(fm_st_proto));
+	fm_st_proto.type = ST_FM;
+	fm_st_proto.recv = fm_st_receive;
+	fm_st_proto.match_packet = NULL;
+	fm_st_proto.reg_complete_cb = fm_st_reg_comp_cb;
+	fm_st_proto.write = NULL; /* TI ST driver will fill write pointer */
+	fm_st_proto.priv_data = fmdev;
+
+	ret = st_register(&fm_st_proto);
+	if (ret == -EINPROGRESS) {
+		init_completion(&wait_for_fmdrv_reg_comp);
+		fmdev->streg_cbdata = -EINPROGRESS;
+		fmdbg("%s waiting for ST reg completion signal\n", __func__);
+
+		ret = wait_for_completion_timeout(&wait_for_fmdrv_reg_comp,
+				FM_ST_REG_TIMEOUT);
+
+		if (!ret) {
+			fmerr("Timeout(%d sec), didn't get reg "
+					"completion signal from ST\n",
+					jiffies_to_msecs(FM_ST_REG_TIMEOUT) / 1000);
+			return -ETIMEDOUT;
+		}
+		if (fmdev->streg_cbdata != 0) {
+			fmerr("ST reg comp CB called with error "
+					"status %d\n", fmdev->streg_cbdata);
+			return -EAGAIN;
+		}
+
+		ret = 0;
+	} else if (ret == -1) {
+		fmerr("st_register failed %d\n", ret);
+		return -EAGAIN;
+	}
+
+	if (fm_st_proto.write != NULL) {
+		g_st_write = fm_st_proto.write;
+	} else {
+		fmerr("Failed to get ST write func pointer\n");
+		ret = st_unregister(ST_FM);
+		if (ret < 0)
+			fmerr("st_unregister failed %d\n", ret);
+		return -EAGAIN;
+	}
+
+	spin_lock_init(&fmdev->rds_buff_lock);
+	spin_lock_init(&fmdev->resp_skb_lock);
+
+	/* Initialize TX queue and TX tasklet */
+	skb_queue_head_init(&fmdev->tx_q);
+	tasklet_init(&fmdev->tx_task, send_tasklet, (unsigned long)fmdev);
+
+	/* Initialize RX Queue and RX tasklet */
+	skb_queue_head_init(&fmdev->rx_q);
+	tasklet_init(&fmdev->rx_task, recv_tasklet, (unsigned long)fmdev);
+
+	fmdev->irq_info.stage = 0;
+	atomic_set(&fmdev->tx_cnt, 1);
+	fmdev->resp_comp = NULL;
+
+	init_timer(&fmdev->irq_info.timer);
+	fmdev->irq_info.timer.function = &int_timeout_handler;
+	fmdev->irq_info.timer.data = (unsigned long)fmdev;
+	/*TODO: add FM_STIC_EVENT later */
+	fmdev->irq_info.mask = FM_MAL_EVENT;
+
+	/* Region info */
+	memcpy(&fmdev->rx.region, &region_configs[default_radio_region],
+			sizeof(struct region_info));
+
+	fmdev->rx.mute_mode = FM_MUTE_OFF;
+	fmdev->rx.rf_depend_mute = FM_RX_RF_DEPENDENT_MUTE_OFF;
+	fmdev->rx.rds.flag = FM_RDS_DISABLE;
+	fmdev->rx.freq = FM_UNDEFINED_FREQ;
+	fmdev->rx.rds_mode = FM_RDS_SYSTEM_RDS;
+	fmdev->rx.af_mode = FM_RX_RDS_AF_SWITCH_MODE_OFF;
+	fmdev->irq_info.retry = 0;
+
+	fm_rx_reset_rds_cache(fmdev);
+	init_waitqueue_head(&fmdev->rx.rds.read_queue);
+
+	fm_rx_reset_station_info(fmdev);
+	set_bit(FM_CORE_READY, &fmdev->flag);
+
+	return ret;
+}
+
+/*
+ * This function will be called from FM V4L2 release function.
+ * Unregister from ST driver.
+ */
+u32 fmc_release(struct fmdev *fmdev)
+{
+	u32 ret;
+
+	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
+		fmdbg("FM Core is already down\n");
+		return 0;
+	}
+	/* Sevice pending read */
+	wake_up_interruptible(&fmdev->rx.rds.read_queue);
+
+	tasklet_kill(&fmdev->tx_task);
+	tasklet_kill(&fmdev->rx_task);
+
+	skb_queue_purge(&fmdev->tx_q);
+	skb_queue_purge(&fmdev->rx_q);
+
+	fmdev->resp_comp = NULL;
+	fmdev->rx.freq = 0;
+
+	ret = st_unregister(ST_FM);
+	if (ret < 0)
+		fmerr("Failed to de-register FM from ST %d\n", ret);
+	else
+		fmdbg("Successfully unregistered from ST\n");
+
+	clear_bit(FM_CORE_READY, &fmdev->flag);
+	return ret;
+}
+
+/*
+ * Module init function. Ask FM V4L module to register video device.
+ * Allocate memory for FM driver context and RX RDS buffer.
+ */
+static int __init fm_drv_init(void)
+{
+	struct fmdev *fmdev = NULL;
+	u32 ret = -ENOMEM;
+
+	fmdbg("FM driver version %s\n", FM_DRV_VERSION);
+
+	fmdev = kzalloc(sizeof(struct fmdev), GFP_KERNEL);
+	if (NULL == fmdev) {
+		fmerr("Can't allocate operation structure memory\n");
+		return ret;
+	}
+	fmdev->rx.rds.buf_size = default_rds_buf * FM_RDS_BLK_SIZE;
+	fmdev->rx.rds.buff = kzalloc(fmdev->rx.rds.buf_size, GFP_KERNEL);
+	if (NULL == fmdev->rx.rds.buff) {
+		fmerr("Can't allocate rds ring buffer\n");
+		goto rel_dev;
+	}
+
+	ret = fm_v4l2_init_video_device(fmdev, radio_nr);
+	if (ret < 0)
+		goto rel_rdsbuf;
+
+	fmdev->irq_info.handlers = int_handler_table;
+	fmdev->curr_fmmode = FM_MODE_OFF;
+	fmdev->tx_data.pwr_lvl = FM_PWR_LVL_DEF;
+	fmdev->tx_data.preemph = FM_TX_PREEMPH_50US;
+	return ret;
+
+rel_rdsbuf:
+	kfree(fmdev->rx.rds.buff);
+rel_dev:
+	kfree(fmdev);
+
+	return ret;
+}
+
+/* Module exit function. Ask FM V4L module to unregister video device */
+static void __exit fm_drv_exit(void)
+{
+	struct fmdev *fmdev = NULL;
+
+	fmdev = fm_v4l2_deinit_video_device();
+	if (fmdev != NULL) {
+		kfree(fmdev->rx.rds.buff);
+		kfree(fmdev);
+	}
+}
+
+module_init(fm_drv_init);
+module_exit(fm_drv_exit);
+
+/* ------------- Module Info ------------- */
+MODULE_AUTHOR("Manjunatha Halli <manjunatha_halli@ti.com>");
+MODULE_DESCRIPTION("FM Driver for TI's Connectivity chip. " FM_DRV_VERSION);
+MODULE_VERSION(FM_DRV_VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/radio/wl128x/fmdrv_common.h b/drivers/media/radio/wl128x/fmdrv_common.h
new file mode 100644
index 00000000000..427c4164cec
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv_common.h
@@ -0,0 +1,402 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *  FM Common module header file
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef _FMDRV_COMMON_H
+#define _FMDRV_COMMON_H
+
+#define FM_ST_REG_TIMEOUT   msecs_to_jiffies(6000)	/* 6 sec */
+#define FM_PKT_LOGICAL_CHAN_NUMBER  0x08   /* Logical channel 8 */
+
+#define REG_RD       0x1
+#define REG_WR      0x0
+
+struct fm_reg_table {
+	u8 opcode;
+	u8 type;
+	u8 *name;
+};
+
+#define STEREO_GET               0
+#define RSSI_LVL_GET             1
+#define IF_COUNT_GET             2
+#define FLAG_GET                 3
+#define RDS_SYNC_GET             4
+#define RDS_DATA_GET             5
+#define FREQ_SET                 10
+#define AF_FREQ_SET              11
+#define MOST_MODE_SET            12
+#define MOST_BLEND_SET           13
+#define DEMPH_MODE_SET           14
+#define SEARCH_LVL_SET           15
+#define BAND_SET                 16
+#define MUTE_STATUS_SET          17
+#define RDS_PAUSE_LVL_SET        18
+#define RDS_PAUSE_DUR_SET        19
+#define RDS_MEM_SET              20
+#define RDS_BLK_B_SET            21
+#define RDS_MSK_B_SET            22
+#define RDS_PI_MASK_SET          23
+#define RDS_PI_SET               24
+#define RDS_SYSTEM_SET           25
+#define INT_MASK_SET             26
+#define SEARCH_DIR_SET           27
+#define VOLUME_SET               28
+#define AUDIO_ENABLE_SET         29
+#define PCM_MODE_SET             30
+#define I2S_MODE_CONFIG_SET      31
+#define POWER_SET                32
+#define INTX_CONFIG_SET          33
+#define PULL_EN_SET              34
+#define HILO_SET                 35
+#define SWITCH2FREF              36
+#define FREQ_DRIFT_REPORT        37
+
+#define PCE_GET                  40
+#define FIRM_VER_GET             41
+#define ASIC_VER_GET             42
+#define ASIC_ID_GET              43
+#define MAN_ID_GET               44
+#define TUNER_MODE_SET           45
+#define STOP_SEARCH              46
+#define RDS_CNTRL_SET            47
+
+#define WRITE_HARDWARE_REG       100
+#define CODE_DOWNLOAD            101
+#define RESET                    102
+
+#define FM_POWER_MODE            254
+#define FM_INTERRUPT             255
+
+/* Transmitter API */
+
+#define CHANL_SET                55
+#define CHANL_BW_SET		56
+#define REF_SET                  57
+#define POWER_ENB_SET            90
+#define POWER_ATT_SET            58
+#define POWER_LEV_SET            59
+#define AUDIO_DEV_SET            60
+#define PILOT_DEV_SET            61
+#define RDS_DEV_SET              62
+#define TX_BAND_SET              65
+#define PUPD_SET                 91
+#define AUDIO_IO_SET             63
+#define PREMPH_SET               64
+#define MONO_SET                 66
+#define MUTE                     92
+#define MPX_LMT_ENABLE           67
+#define PI_SET                   93
+#define ECC_SET                  69
+#define PTY                      70
+#define AF                       71
+#define DISPLAY_MODE             74
+#define RDS_REP_SET              77
+#define RDS_CONFIG_DATA_SET      98
+#define RDS_DATA_SET             99
+#define RDS_DATA_ENB             94
+#define TA_SET                   78
+#define TP_SET                   79
+#define DI_SET                   80
+#define MS_SET                   81
+#define PS_SCROLL_SPEED          82
+#define TX_AUDIO_LEVEL_TEST      96
+#define TX_AUDIO_LEVEL_TEST_THRESHOLD    73
+#define TX_AUDIO_INPUT_LEVEL_RANGE_SET   54
+#define RX_ANTENNA_SELECT        87
+#define I2C_DEV_ADDR_SET         86
+#define REF_ERR_CALIB_PARAM_SET          88
+#define REF_ERR_CALIB_PERIODICITY_SET    89
+#define SOC_INT_TRIGGER                  52
+#define SOC_AUDIO_PATH_SET               83
+#define SOC_PCMI_OVERRIDE                84
+#define SOC_I2S_OVERRIDE         85
+#define RSSI_BLOCK_SCAN_FREQ_SET 95
+#define RSSI_BLOCK_SCAN_START    97
+#define RSSI_BLOCK_SCAN_DATA_GET  5
+#define READ_FMANT_TUNE_VALUE            104
+
+/* SKB helpers */
+struct fm_skb_cb {
+	__u8 fm_op;
+	struct completion *completion;
+};
+
+#define fm_cb(skb) ((struct fm_skb_cb *)(skb->cb))
+
+/* FM Channel-8 command message format */
+struct fm_cmd_msg_hdr {
+	__u8 hdr;		/* Logical Channel-8 */
+	__u8 len;		/* Number of bytes follows */
+	__u8 op;		/* FM Opcode */
+	__u8 rd_wr;		/* Read/Write command */
+	__u8 dlen;		/* Length of payload */
+} __attribute__ ((packed));
+
+#define FM_CMD_MSG_HDR_SIZE    5	/* sizeof(struct fm_cmd_msg_hdr) */
+
+/* FM Channel-8 event messgage format */
+struct fm_event_msg_hdr {
+	__u8 header;		/* Logical Channel-8 */
+	__u8 len;		/* Number of bytes follows */
+	__u8 status;		/* Event status */
+	__u8 num_fm_hci_cmds;	/* Number of pkts the host allowed to send */
+	__u8 op;		/* FM Opcode */
+	__u8 rd_wr;		/* Read/Write command */
+	__u8 dlen;		/* Length of payload */
+} __attribute__ ((packed));
+
+#define FM_EVT_MSG_HDR_SIZE     7	/* sizeof(struct fm_event_msg_hdr) */
+
+/* TI's magic number in firmware file */
+#define FM_FW_FILE_HEADER_MAGIC	     0x42535442
+
+#define FM_ENABLE   1
+#define FM_DISABLE  0
+
+/* FLAG_GET register bits */
+#define FM_FR_EVENT		(1 << 0)
+#define FM_BL_EVENT		(1 << 1)
+#define FM_RDS_EVENT		(1 << 2)
+#define FM_BBLK_EVENT		(1 << 3)
+#define FM_LSYNC_EVENT		(1 << 4)
+#define FM_LEV_EVENT		(1 << 5)
+#define FM_IFFR_EVENT		(1 << 6)
+#define FM_PI_EVENT		(1 << 7)
+#define FM_PD_EVENT		(1 << 8)
+#define FM_STIC_EVENT		(1 << 9)
+#define FM_MAL_EVENT		(1 << 10)
+#define FM_POW_ENB_EVENT	(1 << 11)
+
+/*
+ * Firmware files of FM. ASIC ID and ASIC version will be appened to this,
+ * later.
+ */
+#define FM_FMC_FW_FILE_START      ("fmc_ch8")
+#define FM_RX_FW_FILE_START       ("fm_rx_ch8")
+#define FM_TX_FW_FILE_START       ("fm_tx_ch8")
+
+#define FM_UNDEFINED_FREQ		   0xFFFFFFFF
+
+/* Band types */
+#define FM_BAND_EUROPE_US	0
+#define FM_BAND_JAPAN		1
+
+/* Seek directions */
+#define FM_SEARCH_DIRECTION_DOWN	0
+#define FM_SEARCH_DIRECTION_UP		1
+
+/* Tunner modes */
+#define FM_TUNER_STOP_SEARCH_MODE	0
+#define FM_TUNER_PRESET_MODE		1
+#define FM_TUNER_AUTONOMOUS_SEARCH_MODE	2
+#define FM_TUNER_AF_JUMP_MODE		3
+
+/* Min and Max volume */
+#define FM_RX_VOLUME_MIN	0
+#define FM_RX_VOLUME_MAX	70
+
+/* Volume gain step */
+#define FM_RX_VOLUME_GAIN_STEP	0x370
+
+/* Mute modes */
+#define	FM_MUTE_ON		0
+#define FM_MUTE_OFF		1
+#define	FM_MUTE_ATTENUATE	2
+
+#define FM_RX_UNMUTE_MODE		0x00
+#define FM_RX_RF_DEP_MODE		0x01
+#define FM_RX_AC_MUTE_MODE		0x02
+#define FM_RX_HARD_MUTE_LEFT_MODE	0x04
+#define FM_RX_HARD_MUTE_RIGHT_MODE	0x08
+#define FM_RX_SOFT_MUTE_FORCE_MODE	0x10
+
+/* RF dependent mute mode */
+#define FM_RX_RF_DEPENDENT_MUTE_ON	1
+#define FM_RX_RF_DEPENDENT_MUTE_OFF	0
+
+/* RSSI threshold min and max */
+#define FM_RX_RSSI_THRESHOLD_MIN	-128
+#define FM_RX_RSSI_THRESHOLD_MAX	127
+
+/* Stereo/Mono mode */
+#define FM_STEREO_MODE		0
+#define FM_MONO_MODE		1
+#define FM_STEREO_SOFT_BLEND	1
+
+/* FM RX De-emphasis filter modes */
+#define FM_RX_EMPHASIS_FILTER_50_USEC	0
+#define FM_RX_EMPHASIS_FILTER_75_USEC	1
+
+/* FM RDS modes */
+#define FM_RDS_DISABLE	0
+#define FM_RDS_ENABLE	1
+
+#define FM_NO_PI_CODE	0
+
+/* FM and RX RDS block enable/disable  */
+#define FM_RX_PWR_SET_FM_ON_RDS_OFF		0x1
+#define FM_RX_PWR_SET_FM_AND_RDS_BLK_ON		0x3
+#define FM_RX_PWR_SET_FM_AND_RDS_BLK_OFF	0x0
+
+/* RX RDS */
+#define FM_RX_RDS_FLUSH_FIFO		0x1
+#define FM_RX_RDS_FIFO_THRESHOLD	64	/* tuples */
+#define FM_RDS_BLK_SIZE		3	/* 3 bytes */
+
+/* RDS block types */
+#define FM_RDS_BLOCK_A		0
+#define FM_RDS_BLOCK_B		1
+#define FM_RDS_BLOCK_C		2
+#define FM_RDS_BLOCK_Ctag	3
+#define FM_RDS_BLOCK_D		4
+#define FM_RDS_BLOCK_E		5
+
+#define FM_RDS_BLK_IDX_A		0
+#define FM_RDS_BLK_IDX_B		1
+#define FM_RDS_BLK_IDX_C		2
+#define FM_RDS_BLK_IDX_D		3
+#define FM_RDS_BLK_IDX_UNKNOWN	0xF0
+
+#define FM_RDS_STATUS_ERR_MASK	0x18
+
+/*
+ * Represents an RDS group type & version.
+ * There are 15 groups, each group has 2 versions: A and B.
+ */
+#define FM_RDS_GROUP_TYPE_MASK_0A	    ((unsigned long)1<<0)
+#define FM_RDS_GROUP_TYPE_MASK_0B	    ((unsigned long)1<<1)
+#define FM_RDS_GROUP_TYPE_MASK_1A	    ((unsigned long)1<<2)
+#define FM_RDS_GROUP_TYPE_MASK_1B	    ((unsigned long)1<<3)
+#define FM_RDS_GROUP_TYPE_MASK_2A	    ((unsigned long)1<<4)
+#define FM_RDS_GROUP_TYPE_MASK_2B	    ((unsigned long)1<<5)
+#define FM_RDS_GROUP_TYPE_MASK_3A	    ((unsigned long)1<<6)
+#define FM_RDS_GROUP_TYPE_MASK_3B           ((unsigned long)1<<7)
+#define FM_RDS_GROUP_TYPE_MASK_4A	    ((unsigned long)1<<8)
+#define FM_RDS_GROUP_TYPE_MASK_4B	    ((unsigned long)1<<9)
+#define FM_RDS_GROUP_TYPE_MASK_5A	    ((unsigned long)1<<10)
+#define FM_RDS_GROUP_TYPE_MASK_5B	    ((unsigned long)1<<11)
+#define FM_RDS_GROUP_TYPE_MASK_6A	    ((unsigned long)1<<12)
+#define FM_RDS_GROUP_TYPE_MASK_6B	    ((unsigned long)1<<13)
+#define FM_RDS_GROUP_TYPE_MASK_7A	    ((unsigned long)1<<14)
+#define FM_RDS_GROUP_TYPE_MASK_7B	    ((unsigned long)1<<15)
+#define FM_RDS_GROUP_TYPE_MASK_8A           ((unsigned long)1<<16)
+#define FM_RDS_GROUP_TYPE_MASK_8B	    ((unsigned long)1<<17)
+#define FM_RDS_GROUP_TYPE_MASK_9A	    ((unsigned long)1<<18)
+#define FM_RDS_GROUP_TYPE_MASK_9B	    ((unsigned long)1<<19)
+#define FM_RDS_GROUP_TYPE_MASK_10A	    ((unsigned long)1<<20)
+#define FM_RDS_GROUP_TYPE_MASK_10B	    ((unsigned long)1<<21)
+#define FM_RDS_GROUP_TYPE_MASK_11A	    ((unsigned long)1<<22)
+#define FM_RDS_GROUP_TYPE_MASK_11B	    ((unsigned long)1<<23)
+#define FM_RDS_GROUP_TYPE_MASK_12A	    ((unsigned long)1<<24)
+#define FM_RDS_GROUP_TYPE_MASK_12B	    ((unsigned long)1<<25)
+#define FM_RDS_GROUP_TYPE_MASK_13A	    ((unsigned long)1<<26)
+#define FM_RDS_GROUP_TYPE_MASK_13B	    ((unsigned long)1<<27)
+#define FM_RDS_GROUP_TYPE_MASK_14A	    ((unsigned long)1<<28)
+#define FM_RDS_GROUP_TYPE_MASK_14B	    ((unsigned long)1<<29)
+#define FM_RDS_GROUP_TYPE_MASK_15A	    ((unsigned long)1<<30)
+#define FM_RDS_GROUP_TYPE_MASK_15B	    ((unsigned long)1<<31)
+
+/* RX Alternate Frequency info */
+#define FM_RDS_MIN_AF		          1
+#define FM_RDS_MAX_AF		        204
+#define FM_RDS_MAX_AF_JAPAN	        140
+#define FM_RDS_1_AF_FOLLOWS	        225
+#define FM_RDS_25_AF_FOLLOWS	        249
+
+/* RDS system type (RDS/RBDS) */
+#define FM_RDS_SYSTEM_RDS		0
+#define FM_RDS_SYSTEM_RBDS		1
+
+/* AF on/off */
+#define FM_RX_RDS_AF_SWITCH_MODE_ON	1
+#define FM_RX_RDS_AF_SWITCH_MODE_OFF	0
+
+/* Retry count when interrupt process goes wrong */
+#define FM_IRQ_TIMEOUT_RETRY_MAX	5	/* 5 times */
+
+/* Audio IO set values */
+#define FM_RX_AUDIO_ENABLE_I2S	0x01
+#define FM_RX_AUDIO_ENABLE_ANALOG	0x02
+#define FM_RX_AUDIO_ENABLE_I2S_AND_ANALOG	0x03
+#define FM_RX_AUDIO_ENABLE_DISABLE	0x00
+
+/* HI/LO set values */
+#define FM_RX_IFFREQ_TO_HI_SIDE		0x0
+#define FM_RX_IFFREQ_TO_LO_SIDE		0x1
+#define FM_RX_IFFREQ_HILO_AUTOMATIC	0x2
+
+/*
+ * Default RX mode configuration. Chip will be configured
+ * with this default values after loading RX firmware.
+ */
+#define FM_DEFAULT_RX_VOLUME		10
+#define FM_DEFAULT_RSSI_THRESHOLD	3
+
+/* Range for TX power level in units for dB/uV */
+#define FM_PWR_LVL_LOW			91
+#define FM_PWR_LVL_HIGH			122
+
+/* Chip specific default TX power level value */
+#define FM_PWR_LVL_DEF			4
+
+/* FM TX Pre-emphasis filter values */
+#define FM_TX_PREEMPH_OFF		1
+#define FM_TX_PREEMPH_50US		0
+#define FM_TX_PREEMPH_75US		2
+
+/* FM TX antenna impedence values */
+#define FM_TX_ANT_IMP_50		0
+#define FM_TX_ANT_IMP_200		1
+#define FM_TX_ANT_IMP_500		2
+
+/* Functions exported by FM common sub-module */
+u32 fmc_prepare(struct fmdev *);
+u32 fmc_release(struct fmdev *);
+
+void fmc_update_region_info(struct fmdev *, u8);
+u32 fmc_send_cmd(struct fmdev *, u8, u16,
+				void *, unsigned int, void *, int *);
+u32 fmc_is_rds_data_available(struct fmdev *, struct file *,
+				struct poll_table_struct *);
+u32 fmc_transfer_rds_from_internal_buff(struct fmdev *, struct file *,
+					u8 __user *, size_t);
+
+u32 fmc_set_freq(struct fmdev *, u32);
+u32 fmc_set_mode(struct fmdev *, u8);
+u32 fmc_set_region(struct fmdev *, u8);
+u32 fmc_set_mute_mode(struct fmdev *, u8);
+u32 fmc_set_stereo_mono(struct fmdev *, u16);
+u32 fmc_set_rds_mode(struct fmdev *, u8);
+
+u32 fmc_get_freq(struct fmdev *, u32 *);
+u32 fmc_get_region(struct fmdev *, u8 *);
+u32 fmc_get_mode(struct fmdev *, u8 *);
+
+/*
+ * channel spacing
+ */
+#define FM_CHANNEL_SPACING_50KHZ 1
+#define FM_CHANNEL_SPACING_100KHZ 2
+#define FM_CHANNEL_SPACING_200KHZ 4
+#define FM_FREQ_MUL 50
+
+#endif
+
diff --git a/drivers/media/radio/wl128x/fmdrv_rx.c b/drivers/media/radio/wl128x/fmdrv_rx.c
new file mode 100644
index 00000000000..ec529b55b04
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv_rx.c
@@ -0,0 +1,847 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *  This sub-module of FM driver implements FM RX functionality.
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *  Author: Raja Mani <raja_mani@ti.com>
+ *  Author: Manjunatha Halli <manjunatha_halli@ti.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "fmdrv.h"
+#include "fmdrv_common.h"
+#include "fmdrv_rx.h"
+
+void fm_rx_reset_rds_cache(struct fmdev *fmdev)
+{
+	fmdev->rx.rds.flag = FM_RDS_DISABLE;
+	fmdev->rx.rds.last_blk_idx = 0;
+	fmdev->rx.rds.wr_idx = 0;
+	fmdev->rx.rds.rd_idx = 0;
+
+	if (fmdev->rx.af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON)
+		fmdev->irq_info.mask |= FM_LEV_EVENT;
+}
+
+void fm_rx_reset_station_info(struct fmdev *fmdev)
+{
+	fmdev->rx.stat_info.picode = FM_NO_PI_CODE;
+	fmdev->rx.stat_info.afcache_size = 0;
+	fmdev->rx.stat_info.af_list_max = 0;
+}
+
+u32 fm_rx_set_freq(struct fmdev *fmdev, u32 freq)
+{
+	unsigned long timeleft;
+	u16 payload, curr_frq, intr_flag;
+	u32 curr_frq_in_khz;
+	u32 ret, resp_len;
+
+	if (freq < fmdev->rx.region.bot_freq || freq > fmdev->rx.region.top_freq) {
+		fmerr("Invalid frequency %d\n", freq);
+		return -EINVAL;
+	}
+
+	/* Set audio enable */
+	payload = FM_RX_AUDIO_ENABLE_I2S_AND_ANALOG;
+
+	ret = fmc_send_cmd(fmdev, AUDIO_ENABLE_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Set hilo to automatic selection */
+	payload = FM_RX_IFFREQ_HILO_AUTOMATIC;
+	ret = fmc_send_cmd(fmdev, HILO_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Calculate frequency index and set*/
+	payload = (freq - fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
+
+	ret = fmc_send_cmd(fmdev, FREQ_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Read flags - just to clear any pending interrupts if we had */
+	ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2, NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Enable FR, BL interrupts */
+	intr_flag = fmdev->irq_info.mask;
+	fmdev->irq_info.mask = (FM_FR_EVENT | FM_BL_EVENT);
+	payload = fmdev->irq_info.mask;
+	ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Start tune */
+	payload = FM_TUNER_PRESET_MODE;
+	ret = fmc_send_cmd(fmdev, TUNER_MODE_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		goto exit;
+
+	/* Wait for tune ended interrupt */
+	init_completion(&fmdev->maintask_comp);
+	timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,
+			FM_DRV_TX_TIMEOUT);
+	if (!timeleft) {
+		fmerr("Timeout(%d sec),didn't get tune ended int\n",
+			   jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000);
+		ret = -ETIMEDOUT;
+		goto exit;
+	}
+
+	/* Read freq back to confirm */
+	ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL, 2, &curr_frq, &resp_len);
+	if (ret < 0)
+		goto exit;
+
+	curr_frq = be16_to_cpu(curr_frq);
+	curr_frq_in_khz = (fmdev->rx.region.bot_freq + ((u32)curr_frq * FM_FREQ_MUL));
+
+	if (curr_frq_in_khz != freq) {
+		pr_info("Frequency is set to (%d) but "
+			   "requested freq is (%d)\n", curr_frq_in_khz, freq);
+	}
+
+	/* Update local cache  */
+	fmdev->rx.freq = curr_frq_in_khz;
+exit:
+	/* Re-enable default FM interrupts */
+	fmdev->irq_info.mask = intr_flag;
+	payload = fmdev->irq_info.mask;
+	ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Reset RDS cache and current station pointers */
+	fm_rx_reset_rds_cache(fmdev);
+	fm_rx_reset_station_info(fmdev);
+
+	return ret;
+}
+
+static u32 fm_rx_set_channel_spacing(struct fmdev *fmdev, u32 spacing)
+{
+	u16 payload;
+	u32 ret;
+
+	if (spacing > 0 && spacing <= 50000)
+		spacing = FM_CHANNEL_SPACING_50KHZ;
+	else if (spacing > 50000 && spacing <= 100000)
+		spacing = FM_CHANNEL_SPACING_100KHZ;
+	else
+		spacing = FM_CHANNEL_SPACING_200KHZ;
+
+	/* set channel spacing */
+	payload = spacing;
+	ret = fmc_send_cmd(fmdev, CHANL_BW_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fmdev->rx.region.chanl_space = spacing * FM_FREQ_MUL;
+
+	return ret;
+}
+
+u32 fm_rx_seek(struct fmdev *fmdev, u32 seek_upward,
+		u32 wrap_around, u32 spacing)
+{
+	u32 resp_len;
+	u16 curr_frq, next_frq, last_frq;
+	u16 payload, int_reason, intr_flag;
+	u16 offset, space_idx;
+	unsigned long timeleft;
+	u32 ret;
+
+	/* Set channel spacing */
+	ret = fm_rx_set_channel_spacing(fmdev, spacing);
+	if (ret < 0) {
+		fmerr("Failed to set channel spacing\n");
+		return ret;
+	}
+
+	/* Read the current frequency from chip */
+	ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL,
+			sizeof(curr_frq), &curr_frq, &resp_len);
+	if (ret < 0)
+		return ret;
+
+	curr_frq = be16_to_cpu(curr_frq);
+	last_frq = (fmdev->rx.region.top_freq - fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
+
+	/* Check the offset in order to be aligned to the channel spacing*/
+	space_idx = fmdev->rx.region.chanl_space / FM_FREQ_MUL;
+	offset = curr_frq % space_idx;
+
+	next_frq = seek_upward ? curr_frq + space_idx /* Seek Up */ :
+				curr_frq - space_idx /* Seek Down */ ;
+
+	/*
+	 * Add or subtract offset in order to stay aligned to the channel
+	 * spacing.
+	 */
+	if ((short)next_frq < 0)
+		next_frq = last_frq - offset;
+	else if (next_frq > last_frq)
+		next_frq = 0 + offset;
+
+again:
+	/* Set calculated next frequency to perform seek */
+	payload = next_frq;
+	ret = fmc_send_cmd(fmdev, FREQ_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Set search direction (0:Seek Down, 1:Seek Up) */
+	payload = (seek_upward ? FM_SEARCH_DIRECTION_UP : FM_SEARCH_DIRECTION_DOWN);
+	ret = fmc_send_cmd(fmdev, SEARCH_DIR_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Read flags - just to clear any pending interrupts if we had */
+	ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2, NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Enable FR, BL interrupts */
+	intr_flag = fmdev->irq_info.mask;
+	fmdev->irq_info.mask = (FM_FR_EVENT | FM_BL_EVENT);
+	payload = fmdev->irq_info.mask;
+	ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Start seek */
+	payload = FM_TUNER_AUTONOMOUS_SEARCH_MODE;
+	ret = fmc_send_cmd(fmdev, TUNER_MODE_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Wait for tune ended/band limit reached interrupt */
+	init_completion(&fmdev->maintask_comp);
+	timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,
+			FM_DRV_RX_SEEK_TIMEOUT);
+	if (!timeleft) {
+		fmerr("Timeout(%d sec),didn't get tune ended int\n",
+			   jiffies_to_msecs(FM_DRV_RX_SEEK_TIMEOUT) / 1000);
+		return -ETIMEDOUT;
+	}
+
+	int_reason = fmdev->irq_info.flag & (FM_TUNE_COMPLETE | FM_BAND_LIMIT);
+
+	/* Re-enable default FM interrupts */
+	fmdev->irq_info.mask = intr_flag;
+	payload = fmdev->irq_info.mask;
+	ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	if (int_reason & FM_BL_EVENT) {
+		if (wrap_around == 0) {
+			fmdev->rx.freq = seek_upward ?
+				fmdev->rx.region.top_freq :
+				fmdev->rx.region.bot_freq;
+		} else {
+			fmdev->rx.freq = seek_upward ?
+				fmdev->rx.region.bot_freq :
+				fmdev->rx.region.top_freq;
+			/* Calculate frequency index to write */
+			next_frq = (fmdev->rx.freq -
+					fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
+			goto again;
+		}
+	} else {
+		/* Read freq to know where operation tune operation stopped */
+		ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL, 2,
+				&curr_frq, &resp_len);
+		if (ret < 0)
+			return ret;
+
+		curr_frq = be16_to_cpu(curr_frq);
+		fmdev->rx.freq = (fmdev->rx.region.bot_freq +
+				((u32)curr_frq * FM_FREQ_MUL));
+
+	}
+	/* Reset RDS cache and current station pointers */
+	fm_rx_reset_rds_cache(fmdev);
+	fm_rx_reset_station_info(fmdev);
+
+	return ret;
+}
+
+u32 fm_rx_set_volume(struct fmdev *fmdev, u16 vol_to_set)
+{
+	u16 payload;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (vol_to_set < FM_RX_VOLUME_MIN || vol_to_set > FM_RX_VOLUME_MAX) {
+		fmerr("Volume is not within(%d-%d) range\n",
+			   FM_RX_VOLUME_MIN, FM_RX_VOLUME_MAX);
+		return -EINVAL;
+	}
+	vol_to_set *= FM_RX_VOLUME_GAIN_STEP;
+
+	payload = vol_to_set;
+	ret = fmc_send_cmd(fmdev, VOLUME_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fmdev->rx.volume = vol_to_set;
+	return ret;
+}
+
+/* Get volume */
+u32 fm_rx_get_volume(struct fmdev *fmdev, u16 *curr_vol)
+{
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (curr_vol == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*curr_vol = fmdev->rx.volume / FM_RX_VOLUME_GAIN_STEP;
+
+	return 0;
+}
+
+/* To get current band's bottom and top frequency */
+u32 fm_rx_get_band_freq_range(struct fmdev *fmdev, u32 *bot_freq, u32 *top_freq)
+{
+	if (bot_freq != NULL)
+		*bot_freq = fmdev->rx.region.bot_freq;
+
+	if (top_freq != NULL)
+		*top_freq = fmdev->rx.region.top_freq;
+
+	return 0;
+}
+
+/* Returns current band index (0-Europe/US; 1-Japan) */
+void fm_rx_get_region(struct fmdev *fmdev, u8 *region)
+{
+	*region = fmdev->rx.region.fm_band;
+}
+
+/* Sets band (0-Europe/US; 1-Japan) */
+u32 fm_rx_set_region(struct fmdev *fmdev, u8 region_to_set)
+{
+	u16 payload;
+	u32 new_frq = 0;
+	u32 ret;
+
+	if (region_to_set != FM_BAND_EUROPE_US &&
+	    region_to_set != FM_BAND_JAPAN) {
+		fmerr("Invalid band\n");
+		return -EINVAL;
+	}
+
+	if (fmdev->rx.region.fm_band == region_to_set) {
+		fmerr("Requested band is already configured\n");
+		return 0;
+	}
+
+	/* Send cmd to set the band  */
+	payload = (u16)region_to_set;
+	ret = fmc_send_cmd(fmdev, BAND_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fmc_update_region_info(fmdev, region_to_set);
+
+	/* Check whether current RX frequency is within band boundary */
+	if (fmdev->rx.freq < fmdev->rx.region.bot_freq)
+		new_frq = fmdev->rx.region.bot_freq;
+	else if (fmdev->rx.freq > fmdev->rx.region.top_freq)
+		new_frq = fmdev->rx.region.top_freq;
+
+	if (new_frq) {
+		fmdbg("Current freq is not within band limit boundary,"
+				"switching to %d KHz\n", new_frq);
+		 /* Current RX frequency is not in range. So, update it */
+		ret = fm_rx_set_freq(fmdev, new_frq);
+	}
+
+	return ret;
+}
+
+/* Reads current mute mode (Mute Off/On/Attenuate)*/
+u32 fm_rx_get_mute_mode(struct fmdev *fmdev, u8 *curr_mute_mode)
+{
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (curr_mute_mode == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*curr_mute_mode = fmdev->rx.mute_mode;
+
+	return 0;
+}
+
+static u32 fm_config_rx_mute_reg(struct fmdev *fmdev)
+{
+	u16 payload, muteval;
+	u32 ret;
+
+	muteval = 0;
+	switch (fmdev->rx.mute_mode) {
+	case FM_MUTE_ON:
+		muteval = FM_RX_AC_MUTE_MODE;
+		break;
+
+	case FM_MUTE_OFF:
+		muteval = FM_RX_UNMUTE_MODE;
+		break;
+
+	case FM_MUTE_ATTENUATE:
+		muteval = FM_RX_SOFT_MUTE_FORCE_MODE;
+		break;
+	}
+	if (fmdev->rx.rf_depend_mute == FM_RX_RF_DEPENDENT_MUTE_ON)
+		muteval |= FM_RX_RF_DEP_MODE;
+	else
+		muteval &= ~FM_RX_RF_DEP_MODE;
+
+	payload = muteval;
+	ret = fmc_send_cmd(fmdev, MUTE_STATUS_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/* Configures mute mode (Mute Off/On/Attenuate) */
+u32 fm_rx_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
+{
+	u8 org_state;
+	u32 ret;
+
+	if (fmdev->rx.mute_mode == mute_mode_toset)
+		return 0;
+
+	org_state = fmdev->rx.mute_mode;
+	fmdev->rx.mute_mode = mute_mode_toset;
+
+	ret = fm_config_rx_mute_reg(fmdev);
+	if (ret < 0) {
+		fmdev->rx.mute_mode = org_state;
+		return ret;
+	}
+
+	return 0;
+}
+
+/* Gets RF dependent soft mute mode enable/disable status */
+u32 fm_rx_get_rfdepend_softmute(struct fmdev *fmdev, u8 *curr_mute_mode)
+{
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (curr_mute_mode == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*curr_mute_mode = fmdev->rx.rf_depend_mute;
+
+	return 0;
+}
+
+/* Sets RF dependent soft mute mode */
+u32 fm_rx_set_rfdepend_softmute(struct fmdev *fmdev, u8 rfdepend_mute)
+{
+	u8 org_state;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (rfdepend_mute != FM_RX_RF_DEPENDENT_MUTE_ON &&
+	    rfdepend_mute != FM_RX_RF_DEPENDENT_MUTE_OFF) {
+		fmerr("Invalid RF dependent soft mute\n");
+		return -EINVAL;
+	}
+	if (fmdev->rx.rf_depend_mute == rfdepend_mute)
+		return 0;
+
+	org_state = fmdev->rx.rf_depend_mute;
+	fmdev->rx.rf_depend_mute = rfdepend_mute;
+
+	ret = fm_config_rx_mute_reg(fmdev);
+	if (ret < 0) {
+		fmdev->rx.rf_depend_mute = org_state;
+		return ret;
+	}
+
+	return 0;
+}
+
+/* Returns the signal strength level of current channel */
+u32 fm_rx_get_rssi_level(struct fmdev *fmdev, u16 *rssilvl)
+{
+	u16 curr_rssi_lel;
+	u32 resp_len;
+	u32 ret;
+
+	if (rssilvl == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+	/* Read current RSSI level */
+	ret = fmc_send_cmd(fmdev, RSSI_LVL_GET, REG_RD, NULL, 2,
+			&curr_rssi_lel, &resp_len);
+	if (ret < 0)
+		return ret;
+
+	*rssilvl = be16_to_cpu(curr_rssi_lel);
+
+	return 0;
+}
+
+/*
+ * Sets the signal strength level that once reached
+ * will stop the auto search process
+ */
+u32 fm_rx_set_rssi_threshold(struct fmdev *fmdev, short rssi_lvl_toset)
+{
+	u16 payload;
+	u32 ret;
+
+	if (rssi_lvl_toset < FM_RX_RSSI_THRESHOLD_MIN ||
+			rssi_lvl_toset > FM_RX_RSSI_THRESHOLD_MAX) {
+		fmerr("Invalid RSSI threshold level\n");
+		return -EINVAL;
+	}
+	payload = (u16)rssi_lvl_toset;
+	ret = fmc_send_cmd(fmdev, SEARCH_LVL_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fmdev->rx.rssi_threshold = rssi_lvl_toset;
+
+	return 0;
+}
+
+/* Returns current RX RSSI threshold value */
+u32 fm_rx_get_rssi_threshold(struct fmdev *fmdev, short *curr_rssi_lvl)
+{
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (curr_rssi_lvl == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*curr_rssi_lvl = fmdev->rx.rssi_threshold;
+
+	return 0;
+}
+
+/* Sets RX stereo/mono modes */
+u32 fm_rx_set_stereo_mono(struct fmdev *fmdev, u16 mode)
+{
+	u16 payload;
+	u32 ret;
+
+	if (mode != FM_STEREO_MODE && mode != FM_MONO_MODE) {
+		fmerr("Invalid mode\n");
+		return -EINVAL;
+	}
+
+	/* Set stereo/mono mode */
+	payload = (u16)mode;
+	ret = fmc_send_cmd(fmdev, MOST_MODE_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Set stereo blending mode */
+	payload = FM_STEREO_SOFT_BLEND;
+	ret = fmc_send_cmd(fmdev, MOST_BLEND_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/* Gets current RX stereo/mono mode */
+u32 fm_rx_get_stereo_mono(struct fmdev *fmdev, u16 *mode)
+{
+	u16 curr_mode;
+	u32 ret, resp_len;
+
+	if (mode == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	ret = fmc_send_cmd(fmdev, MOST_MODE_SET, REG_RD, NULL, 2,
+			&curr_mode, &resp_len);
+	if (ret < 0)
+		return ret;
+
+	*mode = be16_to_cpu(curr_mode);
+
+	return 0;
+}
+
+/* Choose RX de-emphasis filter mode (50us/75us) */
+u32 fm_rx_set_deemphasis_mode(struct fmdev *fmdev, u16 mode)
+{
+	u16 payload;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (mode != FM_RX_EMPHASIS_FILTER_50_USEC &&
+			mode != FM_RX_EMPHASIS_FILTER_75_USEC) {
+		fmerr("Invalid rx de-emphasis mode (%d)\n", mode);
+		return -EINVAL;
+	}
+
+	payload = mode;
+	ret = fmc_send_cmd(fmdev, DEMPH_MODE_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fmdev->rx.deemphasis_mode = mode;
+
+	return 0;
+}
+
+/* Gets current RX de-emphasis filter mode */
+u32 fm_rx_get_deemph_mode(struct fmdev *fmdev, u16 *curr_deemphasis_mode)
+{
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (curr_deemphasis_mode == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*curr_deemphasis_mode = fmdev->rx.deemphasis_mode;
+
+	return 0;
+}
+
+/* Enable/Disable RX RDS */
+u32 fm_rx_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
+{
+	u16 payload;
+	u32 ret;
+
+	if (rds_en_dis != FM_RDS_ENABLE && rds_en_dis != FM_RDS_DISABLE) {
+		fmerr("Invalid rds option\n");
+		return -EINVAL;
+	}
+
+	if (rds_en_dis == FM_RDS_ENABLE
+	    && fmdev->rx.rds.flag == FM_RDS_DISABLE) {
+		/* Turn on RX RDS and RDS circuit */
+		payload = FM_RX_PWR_SET_FM_AND_RDS_BLK_ON;
+		ret = fmc_send_cmd(fmdev, POWER_SET, REG_WR, &payload,
+				sizeof(payload), NULL, NULL);
+		if (ret < 0)
+			return ret;
+
+		/* Clear and reset RDS FIFO */
+		payload = FM_RX_RDS_FLUSH_FIFO;
+		ret = fmc_send_cmd(fmdev, RDS_CNTRL_SET, REG_WR, &payload,
+		sizeof(payload), NULL, NULL);
+		if (ret < 0)
+			return ret;
+
+		/* Read flags - just to clear any pending interrupts. */
+		ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2,
+				NULL, NULL);
+		if (ret < 0)
+			return ret;
+
+		/* Set RDS FIFO threshold value */
+		payload = FM_RX_RDS_FIFO_THRESHOLD;
+		ret = fmc_send_cmd(fmdev, RDS_MEM_SET, REG_WR, &payload,
+		sizeof(payload), NULL, NULL);
+		if (ret < 0)
+			return ret;
+
+		/* Enable RDS interrupt */
+		fmdev->irq_info.mask |= FM_RDS_EVENT;
+		payload = fmdev->irq_info.mask;
+		ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+				sizeof(payload), NULL, NULL);
+		if (ret < 0) {
+			fmdev->irq_info.mask &= ~FM_RDS_EVENT;
+			return ret;
+		}
+
+		/* Update our local flag */
+		fmdev->rx.rds.flag = FM_RDS_ENABLE;
+	} else if (rds_en_dis == FM_RDS_DISABLE
+		   && fmdev->rx.rds.flag == FM_RDS_ENABLE) {
+		/* Turn off RX RDS */
+		payload = FM_RX_PWR_SET_FM_ON_RDS_OFF;
+		ret = fmc_send_cmd(fmdev, POWER_SET, REG_WR, &payload,
+				sizeof(payload), NULL, NULL);
+		if (ret < 0)
+			return ret;
+
+		/* Reset RDS pointers */
+		fmdev->rx.rds.last_blk_idx = 0;
+		fmdev->rx.rds.wr_idx = 0;
+		fmdev->rx.rds.rd_idx = 0;
+		fm_rx_reset_station_info(fmdev);
+
+		/* Update RDS local cache */
+		fmdev->irq_info.mask &= ~(FM_RDS_EVENT);
+		fmdev->rx.rds.flag = FM_RDS_DISABLE;
+	}
+
+	return 0;
+}
+
+/* Returns current RX RDS enable/disable status */
+u32 fm_rx_get_rds_mode(struct fmdev *fmdev, u8 *curr_rds_en_dis)
+{
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (curr_rds_en_dis == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*curr_rds_en_dis = fmdev->rx.rds.flag;
+
+	return 0;
+}
+
+/* Sets RDS operation mode (RDS/RDBS) */
+u32 fm_rx_set_rds_system(struct fmdev *fmdev, u8 rds_mode)
+{
+	u16 payload;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (rds_mode != FM_RDS_SYSTEM_RDS && rds_mode != FM_RDS_SYSTEM_RBDS) {
+		fmerr("Invalid rds mode\n");
+		return -EINVAL;
+	}
+	/* Set RDS operation mode */
+	payload = (u16)rds_mode;
+	ret = fmc_send_cmd(fmdev, RDS_SYSTEM_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fmdev->rx.rds_mode = rds_mode;
+
+	return 0;
+}
+
+/* Returns current RDS operation mode */
+u32 fm_rx_get_rds_system(struct fmdev *fmdev, u8 *rds_mode)
+{
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (rds_mode == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*rds_mode = fmdev->rx.rds_mode;
+
+	return 0;
+}
+
+/* Configures Alternate Frequency switch mode */
+u32 fm_rx_set_af_switch(struct fmdev *fmdev, u8 af_mode)
+{
+	u16 payload;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (af_mode != FM_RX_RDS_AF_SWITCH_MODE_ON &&
+	    af_mode != FM_RX_RDS_AF_SWITCH_MODE_OFF) {
+		fmerr("Invalid af mode\n");
+		return -EINVAL;
+	}
+	/* Enable/disable low RSSI interrupt based on af_mode */
+	if (af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON)
+		fmdev->irq_info.mask |= FM_LEV_EVENT;
+	else
+		fmdev->irq_info.mask &= ~FM_LEV_EVENT;
+
+	payload = fmdev->irq_info.mask;
+	ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fmdev->rx.af_mode = af_mode;
+
+	return 0;
+}
+
+/* Returns Alternate Frequency switch status */
+u32 fm_rx_get_af_switch(struct fmdev *fmdev, u8 *af_mode)
+{
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	if (af_mode == NULL) {
+		fmerr("Invalid memory\n");
+		return -ENOMEM;
+	}
+
+	*af_mode = fmdev->rx.af_mode;
+
+	return 0;
+}
diff --git a/drivers/media/radio/wl128x/fmdrv_rx.h b/drivers/media/radio/wl128x/fmdrv_rx.h
new file mode 100644
index 00000000000..329e62f6be7
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv_rx.h
@@ -0,0 +1,59 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *  FM RX module header.
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef _FMDRV_RX_H
+#define _FMDRV_RX_H
+
+u32 fm_rx_set_freq(struct fmdev *, u32);
+u32 fm_rx_set_mute_mode(struct fmdev *, u8);
+u32 fm_rx_set_stereo_mono(struct fmdev *, u16);
+u32 fm_rx_set_rds_mode(struct fmdev *, u8);
+u32 fm_rx_set_rds_system(struct fmdev *, u8);
+u32 fm_rx_set_volume(struct fmdev *, u16);
+u32 fm_rx_set_rssi_threshold(struct fmdev *, short);
+u32 fm_rx_set_region(struct fmdev *, u8);
+u32 fm_rx_set_rfdepend_softmute(struct fmdev *, u8);
+u32 fm_rx_set_deemphasis_mode(struct fmdev *, u16);
+u32 fm_rx_set_af_switch(struct fmdev *, u8);
+
+void fm_rx_reset_rds_cache(struct fmdev *);
+void fm_rx_reset_station_info(struct fmdev *);
+
+u32 fm_rx_seek(struct fmdev *, u32, u32, u32);
+
+u32 fm_rx_get_rds_mode(struct fmdev *, u8 *);
+u32 fm_rx_get_rds_system(struct fmdev *, u8 *);
+u32 fm_rx_get_mute_mode(struct fmdev *, u8 *);
+u32 fm_rx_get_volume(struct fmdev *, u16 *);
+u32 fm_rx_get_band_freq_range(struct fmdev *,
+					u32 *, u32 *);
+u32 fm_rx_get_stereo_mono(struct fmdev *, u16 *);
+u32 fm_rx_get_rssi_level(struct fmdev *, u16 *);
+u32 fm_rx_get_rssi_threshold(struct fmdev *, short *);
+u32 fm_rx_get_rfdepend_softmute(struct fmdev *, u8 *);
+u32 fm_rx_get_deemph_mode(struct fmdev *, u16 *);
+u32 fm_rx_get_af_switch(struct fmdev *, u8 *);
+void fm_rx_get_region(struct fmdev *, u8 *);
+
+u32 fm_rx_set_chanl_spacing(struct fmdev *, u8);
+u32 fm_rx_get_chanl_spacing(struct fmdev *, u8 *);
+#endif
+
diff --git a/drivers/media/radio/wl128x/fmdrv_tx.c b/drivers/media/radio/wl128x/fmdrv_tx.c
new file mode 100644
index 00000000000..be54068b56a
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv_tx.c
@@ -0,0 +1,425 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *  This sub-module of FM driver implements FM TX functionality.
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/delay.h>
+#include "fmdrv.h"
+#include "fmdrv_common.h"
+#include "fmdrv_tx.h"
+
+u32 fm_tx_set_stereo_mono(struct fmdev *fmdev, u16 mode)
+{
+	u16 payload;
+	u32 ret;
+
+	if (fmdev->tx_data.aud_mode == mode)
+		return 0;
+
+	fmdbg("stereo mode: %d\n", mode);
+
+	/* Set Stereo/Mono mode */
+	payload = (1 - mode);
+	ret = fmc_send_cmd(fmdev, MONO_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fmdev->tx_data.aud_mode = mode;
+
+	return ret;
+}
+
+static u32 set_rds_text(struct fmdev *fmdev, u8 *rds_text)
+{
+	u16 payload;
+	u32 ret;
+
+	ret = fmc_send_cmd(fmdev, RDS_DATA_SET, REG_WR, rds_text,
+			strlen(rds_text), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Scroll mode */
+	payload = (u16)0x1;
+	ret = fmc_send_cmd(fmdev, DISPLAY_MODE, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static u32 set_rds_data_mode(struct fmdev *fmdev, u8 mode)
+{
+	u16 payload;
+	u32 ret;
+
+	/* Setting unique PI TODO: how unique? */
+	payload = (u16)0xcafe;
+	ret = fmc_send_cmd(fmdev, PI_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Set decoder id */
+	payload = (u16)0xa;
+	ret = fmc_send_cmd(fmdev, DI_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* TODO: RDS_MODE_GET? */
+	return 0;
+}
+
+static u32 set_rds_len(struct fmdev *fmdev, u8 type, u16 len)
+{
+	u16 payload;
+	u32 ret;
+
+	len |= type << 8;
+	payload = len;
+	ret = fmc_send_cmd(fmdev, RDS_CONFIG_DATA_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* TODO: LENGTH_GET? */
+	return 0;
+}
+
+u32 fm_tx_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
+{
+	u16 payload;
+	u32 ret;
+	u8 rds_text[] = "Zoom2\n";
+
+	fmdbg("rds_en_dis:%d(E:%d, D:%d)\n", rds_en_dis,
+		   FM_RDS_ENABLE, FM_RDS_DISABLE);
+
+	if (rds_en_dis == FM_RDS_ENABLE) {
+		/* Set RDS length */
+		set_rds_len(fmdev, 0, strlen(rds_text));
+
+		/* Set RDS text */
+		set_rds_text(fmdev, rds_text);
+
+		/* Set RDS mode */
+		set_rds_data_mode(fmdev, 0x0);
+	}
+
+	/* Send command to enable RDS */
+	if (rds_en_dis == FM_RDS_ENABLE)
+		payload = 0x01;
+	else
+		payload = 0x00;
+
+	ret = fmc_send_cmd(fmdev, RDS_DATA_ENB, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	if (rds_en_dis == FM_RDS_ENABLE) {
+		/* Set RDS length */
+		set_rds_len(fmdev, 0, strlen(rds_text));
+
+		/* Set RDS text */
+		set_rds_text(fmdev, rds_text);
+	}
+	fmdev->tx_data.rds.flag = rds_en_dis;
+
+	return 0;
+}
+
+u32 fm_tx_set_radio_text(struct fmdev *fmdev, u8 *rds_text, u8 rds_type)
+{
+	u16 payload;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_TX)
+		return -EPERM;
+
+	fm_tx_set_rds_mode(fmdev, 0);
+
+	/* Set RDS length */
+	set_rds_len(fmdev, rds_type, strlen(rds_text));
+
+	/* Set RDS text */
+	set_rds_text(fmdev, rds_text);
+
+	/* Set RDS mode */
+	set_rds_data_mode(fmdev, 0x0);
+
+	payload = 1;
+	ret = fmc_send_cmd(fmdev, RDS_DATA_ENB, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+u32 fm_tx_set_af(struct fmdev *fmdev, u32 af)
+{
+	u16 payload;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_TX)
+		return -EPERM;
+
+	fmdbg("AF: %d\n", af);
+
+	af = (af - 87500) / 100;
+	payload = (u16)af;
+	ret = fmc_send_cmd(fmdev, TA_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+u32 fm_tx_set_region(struct fmdev *fmdev, u8 region)
+{
+	u16 payload;
+	u32 ret;
+
+	if (region != FM_BAND_EUROPE_US && region != FM_BAND_JAPAN) {
+		fmerr("Invalid band\n");
+		return -EINVAL;
+	}
+
+	/* Send command to set the band */
+	payload = (u16)region;
+	ret = fmc_send_cmd(fmdev, TX_BAND_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+u32 fm_tx_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
+{
+	u16 payload;
+	u32 ret;
+
+	fmdbg("tx: mute mode %d\n", mute_mode_toset);
+
+	payload = mute_mode_toset;
+	ret = fmc_send_cmd(fmdev, MUTE, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/* Set TX Audio I/O */
+static u32 set_audio_io(struct fmdev *fmdev)
+{
+	struct fmtx_data *tx = &fmdev->tx_data;
+	u16 payload;
+	u32 ret;
+
+	/* Set Audio I/O Enable */
+	payload = tx->audio_io;
+	ret = fmc_send_cmd(fmdev, AUDIO_IO_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* TODO: is audio set? */
+	return 0;
+}
+
+/* Start TX Transmission */
+static u32 enable_xmit(struct fmdev *fmdev, u8 new_xmit_state)
+{
+	struct fmtx_data *tx = &fmdev->tx_data;
+	unsigned long timeleft;
+	u16 payload;
+	u32 ret;
+
+	/* Enable POWER_ENB interrupts */
+	payload = FM_POW_ENB_EVENT;
+	ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Set Power Enable */
+	payload = new_xmit_state;
+	ret = fmc_send_cmd(fmdev, POWER_ENB_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* Wait for Power Enabled */
+	init_completion(&fmdev->maintask_comp);
+	timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,
+			FM_DRV_TX_TIMEOUT);
+	if (!timeleft) {
+		fmerr("Timeout(%d sec),didn't get tune ended interrupt\n",
+			   jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000);
+		return -ETIMEDOUT;
+	}
+
+	set_bit(FM_CORE_TX_XMITING, &fmdev->flag);
+	tx->xmit_state = new_xmit_state;
+
+	return 0;
+}
+
+/* Set TX power level */
+u32 fm_tx_set_pwr_lvl(struct fmdev *fmdev, u8 new_pwr_lvl)
+{
+	u16 payload;
+	struct fmtx_data *tx = &fmdev->tx_data;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_TX)
+		return -EPERM;
+	fmdbg("tx: pwr_level_to_set %ld\n", (long int)new_pwr_lvl);
+
+	/* If the core isn't ready update global variable */
+	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
+		tx->pwr_lvl = new_pwr_lvl;
+		return 0;
+	}
+
+	/* Set power level: Application will specify power level value in
+	 * units of dB/uV, whereas range and step are specific to FM chip.
+	 * For TI's WL chips, convert application specified power level value
+	 * to chip specific value by subtracting 122 from it. Refer to TI FM
+	 * data sheet for details.
+	 * */
+
+	payload = (FM_PWR_LVL_HIGH - new_pwr_lvl);
+	ret = fmc_send_cmd(fmdev, POWER_LEV_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	/* TODO: is the power level set? */
+	tx->pwr_lvl = new_pwr_lvl;
+
+	return 0;
+}
+
+/*
+ * Sets FM TX pre-emphasis filter value (OFF, 50us, or 75us)
+ * Convert V4L2 specified filter values to chip specific filter values.
+ */
+u32 fm_tx_set_preemph_filter(struct fmdev *fmdev, u32 preemphasis)
+{
+	struct fmtx_data *tx = &fmdev->tx_data;
+	u16 payload;
+	u32 ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_TX)
+		return -EPERM;
+
+	switch (preemphasis) {
+	case V4L2_PREEMPHASIS_DISABLED:
+		payload = FM_TX_PREEMPH_OFF;
+		break;
+	case V4L2_PREEMPHASIS_50_uS:
+		payload = FM_TX_PREEMPH_50US;
+		break;
+	case V4L2_PREEMPHASIS_75_uS:
+		payload = FM_TX_PREEMPH_75US;
+		break;
+	}
+
+	ret = fmc_send_cmd(fmdev, PREMPH_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	tx->preemph = payload;
+
+	return ret;
+}
+
+/* Get the TX tuning capacitor value.*/
+u32 fm_tx_get_tune_cap_val(struct fmdev *fmdev)
+{
+	u16 curr_val;
+	u32 ret, resp_len;
+
+	if (fmdev->curr_fmmode != FM_MODE_TX)
+		return -EPERM;
+
+	ret = fmc_send_cmd(fmdev, READ_FMANT_TUNE_VALUE, REG_RD,
+			NULL, sizeof(curr_val), &curr_val, &resp_len);
+	if (ret < 0)
+		return ret;
+
+	curr_val = be16_to_cpu(curr_val);
+
+	return curr_val;
+}
+
+/* Set TX Frequency */
+u32 fm_tx_set_freq(struct fmdev *fmdev, u32 freq_to_set)
+{
+	struct fmtx_data *tx = &fmdev->tx_data;
+	u16 payload, chanl_index;
+	u32 ret;
+
+	if (test_bit(FM_CORE_TX_XMITING, &fmdev->flag)) {
+		enable_xmit(fmdev, 0);
+		clear_bit(FM_CORE_TX_XMITING, &fmdev->flag);
+	}
+
+	/* Enable FR, BL interrupts */
+	payload = (FM_FR_EVENT | FM_BL_EVENT);
+	ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	tx->tx_frq = (unsigned long)freq_to_set;
+	fmdbg("tx: freq_to_set %ld\n", (long int)tx->tx_frq);
+
+	chanl_index = freq_to_set / 10;
+
+	/* Set current tuner channel */
+	payload = chanl_index;
+	ret = fmc_send_cmd(fmdev, CHANL_SET, REG_WR, &payload,
+			sizeof(payload), NULL, NULL);
+	if (ret < 0)
+		return ret;
+
+	fm_tx_set_pwr_lvl(fmdev, tx->pwr_lvl);
+	fm_tx_set_preemph_filter(fmdev, tx->preemph);
+
+	tx->audio_io = 0x01;	/* I2S */
+	set_audio_io(fmdev);
+
+	enable_xmit(fmdev, 0x01);	/* Enable transmission */
+
+	tx->aud_mode = FM_STEREO_MODE;
+	tx->rds.flag = FM_RDS_DISABLE;
+
+	return 0;
+}
+
diff --git a/drivers/media/radio/wl128x/fmdrv_tx.h b/drivers/media/radio/wl128x/fmdrv_tx.h
new file mode 100644
index 00000000000..e393a2bdd49
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv_tx.h
@@ -0,0 +1,37 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *  FM TX module header.
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef _FMDRV_TX_H
+#define _FMDRV_TX_H
+
+u32 fm_tx_set_freq(struct fmdev *, u32);
+u32 fm_tx_set_pwr_lvl(struct fmdev *, u8);
+u32 fm_tx_set_region(struct fmdev *, u8);
+u32 fm_tx_set_mute_mode(struct fmdev *, u8);
+u32 fm_tx_set_stereo_mono(struct fmdev *, u16);
+u32 fm_tx_set_rds_mode(struct fmdev *, u8);
+u32 fm_tx_set_radio_text(struct fmdev *, u8 *, u8);
+u32 fm_tx_set_af(struct fmdev *, u32);
+u32 fm_tx_set_preemph_filter(struct fmdev *, u32);
+u32 fm_tx_get_tune_cap_val(struct fmdev *);
+
+#endif
+
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c
new file mode 100644
index 00000000000..d50e5ac75ab
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv_v4l2.c
@@ -0,0 +1,580 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *  This file provides interfaces to V4L2 subsystem.
+ *
+ *  This module registers with V4L2 subsystem as Radio
+ *  data system interface (/dev/radio). During the registration,
+ *  it will expose two set of function pointers.
+ *
+ *    1) File operation related API (open, close, read, write, poll...etc).
+ *    2) Set of V4L2 IOCTL complaint API.
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *  Author: Raja Mani <raja_mani@ti.com>
+ *  Author: Manjunatha Halli <manjunatha_halli@ti.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "fmdrv.h"
+#include "fmdrv_v4l2.h"
+#include "fmdrv_common.h"
+#include "fmdrv_rx.h"
+#include "fmdrv_tx.h"
+
+static struct video_device *gradio_dev;
+static u8 radio_disconnected;
+
+/* -- V4L2 RADIO (/dev/radioX) device file operation interfaces --- */
+
+/* Read RX RDS data */
+static ssize_t fm_v4l2_fops_read(struct file *file, char __user * buf,
+					size_t count, loff_t *ppos)
+{
+	u8 rds_mode;
+	int ret;
+	struct fmdev *fmdev;
+
+	fmdev = video_drvdata(file);
+
+	if (!radio_disconnected) {
+		fmerr("FM device is already disconnected\n");
+		return -EIO;
+	}
+
+	/* Turn on RDS mode , if it is disabled */
+	ret = fm_rx_get_rds_mode(fmdev, &rds_mode);
+	if (ret < 0) {
+		fmerr("Unable to read current rds mode\n");
+		return ret;
+	}
+
+	if (rds_mode == FM_RDS_DISABLE) {
+		ret = fmc_set_rds_mode(fmdev, FM_RDS_ENABLE);
+		if (ret < 0) {
+			fmerr("Failed to enable rds mode\n");
+			return ret;
+		}
+	}
+
+	/* Copy RDS data from internal buffer to user buffer */
+	return fmc_transfer_rds_from_internal_buff(fmdev, file, buf, count);
+}
+
+/* Write TX RDS data */
+static ssize_t fm_v4l2_fops_write(struct file *file, const char __user * buf,
+		size_t count, loff_t *ppos)
+{
+	struct tx_rds rds;
+	int ret;
+	struct fmdev *fmdev;
+
+	ret = copy_from_user(&rds, buf, sizeof(rds));
+	fmdbg("(%d)type: %d, text %s, af %d\n",
+		   ret, rds.text_type, rds.text, rds.af_freq);
+
+	fmdev = video_drvdata(file);
+	fm_tx_set_radio_text(fmdev, rds.text, rds.text_type);
+	fm_tx_set_af(fmdev, rds.af_freq);
+
+	return 0;
+}
+
+static u32 fm_v4l2_fops_poll(struct file *file, struct poll_table_struct *pts)
+{
+	int ret;
+	struct fmdev *fmdev;
+
+	fmdev = video_drvdata(file);
+	ret = fmc_is_rds_data_available(fmdev, file, pts);
+	if (ret < 0)
+		return POLLIN | POLLRDNORM;
+
+	return 0;
+}
+
+/*
+ * Handle open request for "/dev/radioX" device.
+ * Start with FM RX mode as default.
+ */
+static int fm_v4l2_fops_open(struct file *file)
+{
+	int ret;
+	struct fmdev *fmdev = NULL;
+
+	/* Don't allow multiple open */
+	if (radio_disconnected) {
+		fmerr("FM device is already opened\n");
+		return -EBUSY;
+	}
+
+	fmdev = video_drvdata(file);
+
+	ret = fmc_prepare(fmdev);
+	if (ret < 0) {
+		fmerr("Unable to prepare FM CORE\n");
+		return ret;
+	}
+
+	fmdbg("Load FM RX firmware..\n");
+
+	ret = fmc_set_mode(fmdev, FM_MODE_RX);
+	if (ret < 0) {
+		fmerr("Unable to load FM RX firmware\n");
+		return ret;
+	}
+	radio_disconnected = 1;
+
+	return ret;
+}
+
+static int fm_v4l2_fops_release(struct file *file)
+{
+	int ret;
+	struct fmdev *fmdev;
+
+	fmdev = video_drvdata(file);
+	if (!radio_disconnected) {
+		fmdbg("FM device is already closed\n");
+		return 0;
+	}
+
+	ret = fmc_set_mode(fmdev, FM_MODE_OFF);
+	if (ret < 0) {
+		fmerr("Unable to turn off the chip\n");
+		return ret;
+	}
+
+	ret = fmc_release(fmdev);
+	if (ret < 0) {
+		fmerr("FM CORE release failed\n");
+		return ret;
+	}
+	radio_disconnected = 0;
+
+	return ret;
+}
+
+/* V4L2 RADIO (/dev/radioX) device IOCTL interfaces */
+static int fm_v4l2_vidioc_querycap(struct file *file, void *priv,
+		struct v4l2_capability *capability)
+{
+	strlcpy(capability->driver, FM_DRV_NAME, sizeof(capability->driver));
+	strlcpy(capability->card, FM_DRV_CARD_SHORT_NAME,
+			sizeof(capability->card));
+	sprintf(capability->bus_info, "UART");
+	capability->version = FM_DRV_RADIO_VERSION;
+	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_TUNER |
+		V4L2_CAP_RADIO | V4L2_CAP_MODULATOR |
+		V4L2_CAP_AUDIO | V4L2_CAP_READWRITE |
+		V4L2_CAP_RDS_CAPTURE;
+
+	return 0;
+}
+
+static int fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct fmdev *fmdev = container_of(ctrl->handler,
+			struct fmdev, ctrl_handler);
+
+	switch (ctrl->id) {
+	case  V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+		ctrl->val = fm_tx_get_tune_cap_val(fmdev);
+		break;
+	default:
+		fmwarn("%s: Unknown IOCTL: %d\n", __func__, ctrl->id);
+		break;
+	}
+
+	return 0;
+}
+
+static int fm_v4l2_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct fmdev *fmdev = container_of(ctrl->handler,
+			struct fmdev, ctrl_handler);
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_VOLUME:	/* set volume */
+		return fm_rx_set_volume(fmdev, (u16)ctrl->val);
+
+	case V4L2_CID_AUDIO_MUTE:	/* set mute */
+		return fmc_set_mute_mode(fmdev, (u8)ctrl->val);
+
+	case V4L2_CID_TUNE_POWER_LEVEL:
+		/* set TX power level - ext control */
+		return fm_tx_set_pwr_lvl(fmdev, (u8)ctrl->val);
+
+	case V4L2_CID_TUNE_PREEMPHASIS:
+		return fm_tx_set_preemph_filter(fmdev, (u8) ctrl->val);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int fm_v4l2_vidioc_g_audio(struct file *file, void *priv,
+		struct v4l2_audio *audio)
+{
+	memset(audio, 0, sizeof(*audio));
+	strcpy(audio->name, "Radio");
+	audio->capability = V4L2_AUDCAP_STEREO;
+
+	return 0;
+}
+
+static int fm_v4l2_vidioc_s_audio(struct file *file, void *priv,
+		struct v4l2_audio *audio)
+{
+	if (audio->index != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+/* Get tuner attributes. If current mode is NOT RX, return error */
+static int fm_v4l2_vidioc_g_tuner(struct file *file, void *priv,
+		struct v4l2_tuner *tuner)
+{
+	struct fmdev *fmdev = video_drvdata(file);
+	u32 bottom_freq;
+	u32 top_freq;
+	u16 stereo_mono_mode;
+	u16 rssilvl;
+	int ret;
+
+	if (tuner->index != 0)
+		return -EINVAL;
+
+	if (fmdev->curr_fmmode != FM_MODE_RX)
+		return -EPERM;
+
+	ret = fm_rx_get_band_freq_range(fmdev, &bottom_freq, &top_freq);
+	if (ret != 0)
+		return ret;
+
+	ret = fm_rx_get_stereo_mono(fmdev, &stereo_mono_mode);
+	if (ret != 0)
+		return ret;
+
+	ret = fm_rx_get_rssi_level(fmdev, &rssilvl);
+	if (ret != 0)
+		return ret;
+
+	strcpy(tuner->name, "FM");
+	tuner->type = V4L2_TUNER_RADIO;
+	/* Store rangelow and rangehigh freq in unit of 62.5 Hz */
+	tuner->rangelow = bottom_freq * 16;
+	tuner->rangehigh = top_freq * 16;
+	tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO |
+	((fmdev->rx.rds.flag == FM_RDS_ENABLE) ? V4L2_TUNER_SUB_RDS : 0);
+	tuner->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS |
+			    V4L2_TUNER_CAP_LOW;
+	tuner->audmode = (stereo_mono_mode ?
+			  V4L2_TUNER_MODE_MONO : V4L2_TUNER_MODE_STEREO);
+
+	/*
+	 * Actual rssi value lies in between -128 to +127.
+	 * Convert this range from 0 to 255 by adding +128
+	 */
+	rssilvl += 128;
+
+	/*
+	 * Return signal strength value should be within 0 to 65535.
+	 * Find out correct signal radio by multiplying (65535/255) = 257
+	 */
+	tuner->signal = rssilvl * 257;
+	tuner->afc = 0;
+
+	return ret;
+}
+
+/*
+ * Set tuner attributes. If current mode is NOT RX, set to RX.
+ * Currently, we set only audio mode (mono/stereo) and RDS state (on/off).
+ * Should we set other tuner attributes, too?
+ */
+static int fm_v4l2_vidioc_s_tuner(struct file *file, void *priv,
+		struct v4l2_tuner *tuner)
+{
+	struct fmdev *fmdev = video_drvdata(file);
+	u16 aud_mode;
+	u8 rds_mode;
+	int ret;
+
+	if (tuner->index != 0)
+		return -EINVAL;
+
+	aud_mode = (tuner->audmode == V4L2_TUNER_MODE_STEREO) ?
+			FM_STEREO_MODE : FM_MONO_MODE;
+	rds_mode = (tuner->rxsubchans & V4L2_TUNER_SUB_RDS) ?
+			FM_RDS_ENABLE : FM_RDS_DISABLE;
+
+	if (fmdev->curr_fmmode != FM_MODE_RX) {
+		ret = fmc_set_mode(fmdev, FM_MODE_RX);
+		if (ret < 0) {
+			fmerr("Failed to set RX mode\n");
+			return ret;
+		}
+	}
+
+	ret = fmc_set_stereo_mono(fmdev, aud_mode);
+	if (ret < 0) {
+		fmerr("Failed to set RX stereo/mono mode\n");
+		return ret;
+	}
+
+	ret = fmc_set_rds_mode(fmdev, rds_mode);
+	if (ret < 0)
+		fmerr("Failed to set RX RDS mode\n");
+
+	return ret;
+}
+
+/* Get tuner or modulator radio frequency */
+static int fm_v4l2_vidioc_g_freq(struct file *file, void *priv,
+		struct v4l2_frequency *freq)
+{
+	struct fmdev *fmdev = video_drvdata(file);
+	int ret;
+
+	ret = fmc_get_freq(fmdev, &freq->frequency);
+	if (ret < 0) {
+		fmerr("Failed to get frequency\n");
+		return ret;
+	}
+
+	/* Frequency unit of 62.5 Hz*/
+	freq->frequency = (u32) freq->frequency * 16;
+
+	return 0;
+}
+
+/* Set tuner or modulator radio frequency */
+static int fm_v4l2_vidioc_s_freq(struct file *file, void *priv,
+		struct v4l2_frequency *freq)
+{
+	struct fmdev *fmdev = video_drvdata(file);
+
+	/*
+	 * As V4L2_TUNER_CAP_LOW is set 1 user sends the frequency
+	 * in units of 62.5 Hz.
+	 */
+	freq->frequency = (u32)(freq->frequency / 16);
+
+	return fmc_set_freq(fmdev, freq->frequency);
+}
+
+/* Set hardware frequency seek. If current mode is NOT RX, set it RX. */
+static int fm_v4l2_vidioc_s_hw_freq_seek(struct file *file, void *priv,
+		struct v4l2_hw_freq_seek *seek)
+{
+	struct fmdev *fmdev = video_drvdata(file);
+	int ret;
+
+	if (fmdev->curr_fmmode != FM_MODE_RX) {
+		ret = fmc_set_mode(fmdev, FM_MODE_RX);
+		if (ret != 0) {
+			fmerr("Failed to set RX mode\n");
+			return ret;
+		}
+	}
+
+	ret = fm_rx_seek(fmdev, seek->seek_upward, seek->wrap_around,
+			seek->spacing);
+	if (ret < 0)
+		fmerr("RX seek failed - %d\n", ret);
+
+	return ret;
+}
+/* Get modulator attributes. If mode is not TX, return no attributes. */
+static int fm_v4l2_vidioc_g_modulator(struct file *file, void *priv,
+		struct v4l2_modulator *mod)
+{
+	struct fmdev *fmdev = video_drvdata(file);;
+
+	if (mod->index != 0)
+		return -EINVAL;
+
+	if (fmdev->curr_fmmode != FM_MODE_TX)
+		return -EPERM;
+
+	mod->txsubchans = ((fmdev->tx_data.aud_mode == FM_STEREO_MODE) ?
+				V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO) |
+				((fmdev->tx_data.rds.flag == FM_RDS_ENABLE) ?
+				V4L2_TUNER_SUB_RDS : 0);
+
+	mod->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS |
+				V4L2_TUNER_CAP_LOW;
+
+	return 0;
+}
+
+/* Set modulator attributes. If mode is not TX, set to TX. */
+static int fm_v4l2_vidioc_s_modulator(struct file *file, void *priv,
+		struct v4l2_modulator *mod)
+{
+	struct fmdev *fmdev = video_drvdata(file);
+	u8 rds_mode;
+	u16 aud_mode;
+	int ret;
+
+	if (mod->index != 0)
+		return -EINVAL;
+
+	if (fmdev->curr_fmmode != FM_MODE_TX) {
+		ret = fmc_set_mode(fmdev, FM_MODE_TX);
+		if (ret != 0) {
+			fmerr("Failed to set TX mode\n");
+			return ret;
+		}
+	}
+
+	aud_mode = (mod->txsubchans & V4L2_TUNER_SUB_STEREO) ?
+			FM_STEREO_MODE : FM_MONO_MODE;
+	rds_mode = (mod->txsubchans & V4L2_TUNER_SUB_RDS) ?
+			FM_RDS_ENABLE : FM_RDS_DISABLE;
+	ret = fm_tx_set_stereo_mono(fmdev, aud_mode);
+	if (ret < 0) {
+		fmerr("Failed to set mono/stereo mode for TX\n");
+		return ret;
+	}
+	ret = fm_tx_set_rds_mode(fmdev, rds_mode);
+	if (ret < 0)
+		fmerr("Failed to set rds mode for TX\n");
+
+	return ret;
+}
+
+static const struct v4l2_file_operations fm_drv_fops = {
+	.owner = THIS_MODULE,
+	.read = fm_v4l2_fops_read,
+	.write = fm_v4l2_fops_write,
+	.poll = fm_v4l2_fops_poll,
+	.unlocked_ioctl = video_ioctl2,
+	.open = fm_v4l2_fops_open,
+	.release = fm_v4l2_fops_release,
+};
+
+static const struct v4l2_ctrl_ops fm_ctrl_ops = {
+	.s_ctrl = fm_v4l2_s_ctrl,
+	.g_volatile_ctrl = fm_g_volatile_ctrl,
+};
+static const struct v4l2_ioctl_ops fm_drv_ioctl_ops = {
+	.vidioc_querycap = fm_v4l2_vidioc_querycap,
+	.vidioc_g_audio = fm_v4l2_vidioc_g_audio,
+	.vidioc_s_audio = fm_v4l2_vidioc_s_audio,
+	.vidioc_g_tuner = fm_v4l2_vidioc_g_tuner,
+	.vidioc_s_tuner = fm_v4l2_vidioc_s_tuner,
+	.vidioc_g_frequency = fm_v4l2_vidioc_g_freq,
+	.vidioc_s_frequency = fm_v4l2_vidioc_s_freq,
+	.vidioc_s_hw_freq_seek = fm_v4l2_vidioc_s_hw_freq_seek,
+	.vidioc_g_modulator = fm_v4l2_vidioc_g_modulator,
+	.vidioc_s_modulator = fm_v4l2_vidioc_s_modulator
+};
+
+/* V4L2 RADIO device parent structure */
+static struct video_device fm_viddev_template = {
+	.fops = &fm_drv_fops,
+	.ioctl_ops = &fm_drv_ioctl_ops,
+	.name = FM_DRV_NAME,
+	.release = video_device_release,
+};
+
+int fm_v4l2_init_video_device(struct fmdev *fmdev, int radio_nr)
+{
+	struct v4l2_ctrl *ctrl;
+	int ret;
+
+	/* Init mutex for core locking */
+	mutex_init(&fmdev->mutex);
+
+	/* Allocate new video device */
+	gradio_dev = video_device_alloc();
+	if (NULL == gradio_dev) {
+		fmerr("Can't allocate video device\n");
+		return -ENOMEM;
+	}
+
+	/* Setup FM driver's V4L2 properties */
+	memcpy(gradio_dev, &fm_viddev_template, sizeof(fm_viddev_template));
+
+	video_set_drvdata(gradio_dev, fmdev);
+
+	gradio_dev->lock = &fmdev->mutex;
+
+	/* Register with V4L2 subsystem as RADIO device */
+	if (video_register_device(gradio_dev, VFL_TYPE_RADIO, radio_nr)) {
+		video_device_release(gradio_dev);
+		fmerr("Could not register video device\n");
+		return -ENOMEM;
+	}
+
+	fmdev->radio_dev = gradio_dev;
+
+	/* Register to v4l2 ctrl handler framework */
+	fmdev->radio_dev->ctrl_handler = &fmdev->ctrl_handler;
+
+	ret = v4l2_ctrl_handler_init(&fmdev->ctrl_handler, 5);
+	if (ret < 0) {
+		fmerr("(fmdev): Can't init ctrl handler\n");
+		v4l2_ctrl_handler_free(&fmdev->ctrl_handler);
+		return -EBUSY;
+	}
+
+	/*
+	 * Following controls are handled by V4L2 control framework.
+	 * Added in ascending ID order.
+	 */
+	v4l2_ctrl_new_std(&fmdev->ctrl_handler, &fm_ctrl_ops,
+			V4L2_CID_AUDIO_VOLUME, FM_RX_VOLUME_MIN,
+			FM_RX_VOLUME_MAX, 1, FM_RX_VOLUME_MAX);
+
+	v4l2_ctrl_new_std(&fmdev->ctrl_handler, &fm_ctrl_ops,
+			V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
+
+	v4l2_ctrl_new_std_menu(&fmdev->ctrl_handler, &fm_ctrl_ops,
+			V4L2_CID_TUNE_PREEMPHASIS, V4L2_PREEMPHASIS_75_uS,
+			0, V4L2_PREEMPHASIS_75_uS);
+
+	v4l2_ctrl_new_std(&fmdev->ctrl_handler, &fm_ctrl_ops,
+			V4L2_CID_TUNE_POWER_LEVEL, FM_PWR_LVL_LOW,
+			FM_PWR_LVL_HIGH, 1, FM_PWR_LVL_HIGH);
+
+	ctrl = v4l2_ctrl_new_std(&fmdev->ctrl_handler, &fm_ctrl_ops,
+			V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0,
+			255, 1, 255);
+
+	if (ctrl)
+		ctrl->is_volatile = 1;
+
+	return 0;
+}
+
+void *fm_v4l2_deinit_video_device(void)
+{
+	struct fmdev *fmdev;
+
+
+	fmdev = video_get_drvdata(gradio_dev);
+
+	/* Unregister to v4l2 ctrl handler framework*/
+	v4l2_ctrl_handler_free(&fmdev->ctrl_handler);
+
+	/* Unregister RADIO device from V4L2 subsystem */
+	video_unregister_device(gradio_dev);
+
+	return fmdev;
+}
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.h b/drivers/media/radio/wl128x/fmdrv_v4l2.h
new file mode 100644
index 00000000000..0ba79d745e2
--- /dev/null
+++ b/drivers/media/radio/wl128x/fmdrv_v4l2.h
@@ -0,0 +1,33 @@
+/*
+ *  FM Driver for Connectivity chip of Texas Instruments.
+ *
+ *  FM V4L2 module header.
+ *
+ *  Copyright (C) 2011 Texas Instruments
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef _FMDRV_V4L2_H
+#define _FMDRV_V4L2_H
+
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+
+int fm_v4l2_init_video_device(struct fmdev *, int);
+void *fm_v4l2_deinit_video_device(void);
+
+#endif