Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "The main set of series of patches for media subsystem, including:
   - document RC sysfs class
   - added an API to setup scancode to allow waking up systems using the
     Remote Controller
   - add API for SDR devices.  Drivers are still on staging
   - some API improvements for getting EDID data from media
     inputs/outputs
   - new DVB frontend driver for drx-j (ATSC)
   - one driver (it913x/it9137) got removed, in favor of an improvement
     on another driver (af9035)
   - added a skeleton V4L2 PCI driver at documentation
   - added a dual flash driver (lm3646)
   - added a new IR driver (img-ir)
   - added an IR scancode decoder for the Sharp protocol
   - some improvements at the usbtv driver, to allow its core to be
     reused.
   - added a new SDR driver (rtl2832u_sdr)
   - added a new tuner driver (msi001)
   - several improvements at em28xx driver to fix PM support, device
     removal and to split the V4L2 specific bits into a separate
     sub-driver
   - one driver got converted to videobuf2 (s2255drv)
   - the e4000 tuner driver now follows an improved binding model
   - some fixes at V4L2 compat32 code
   - several fixes and enhancements at videobuf2 code
   - some cleanups at V4L2 API documentation
   - usual driver enhancements, new board additions and misc fixups"

[ NOTE! This merge effective drops commit 4329b93b283c ("of: Reduce
  indentation in of_graph_get_next_endpoint").

  The of_graph_get_next_endpoint() function was moved and renamed by
  commit fd9fdb78a9bf ("[media] of: move graph helpers from
  drivers/media/v4l2-core to drivers/of").  It was originally called
  v4l2_of_get_next_endpoint() and lived in the file
  drivers/media/v4l2-core/v4l2-of.c.

  In that original location, it was then fixed to support empty port
  nodes by commit b9db140c1e46 ("[media] v4l: of: Support empty port
  nodes"), and that commit clashes badly with the dropped "Reduce
  intendation" commit.  I had to choose one or the other, and decided
  that the "Support empty port nodes" commit was more important ]

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (426 commits)
  [media] em28xx-dvb: fix PCTV 461e tuner I2C binding
  Revert "[media] em28xx-dvb: fix PCTV 461e tuner I2C binding"
  [media] em28xx: fix PCTV 290e LNA oops
  [media] em28xx-dvb: fix PCTV 461e tuner I2C binding
  [media] m88ds3103: fix bug on .set_tone()
  [media] saa7134: fix WARN_ON during resume
  [media] v4l2-dv-timings: add module name, description, license
  [media] videodev2.h: add parenthesis around macro arguments
  [media] saa6752hs: depends on CRC32
  [media] si4713: fix Kconfig dependencies
  [media] Sensoray 2255 uses videobuf2
  [media] adv7180: free an interrupt on failure paths in init_device()
  [media] e4000: make VIDEO_V4L2 dependency optional
  [media] af9033: Don't export functions for the hardware filter
  [media] af9035: use af9033 PID filters
  [media] af9033: implement PID filter
  [media] rtl2832_sdr: do not use dynamic stack allocation
  [media] e4000: fix 32-bit build error
  [media] em28xx-audio: make sure audio is unmuted on open()
  [media] DocBook media: v4l2_format_sdr was renamed to v4l2_sdr_format
  ...

18 files changed, 2665 insertions, 1007 deletions

diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig
index 22b0c9d6f04..a9f2e63a7c9 100644
--- a/drivers/staging/media/Kconfig
+++ b/drivers/staging/media/Kconfig
@@ -41,6 +41,8 @@ source "drivers/staging/media/solo6x10/Kconfig"
 
 source "drivers/staging/media/omap4iss/Kconfig"
 
+source "drivers/staging/media/rtl2832u_sdr/Kconfig"
+
 # Keep LIRC at the end, as it has sub-menus
 source "drivers/staging/media/lirc/Kconfig"
 
diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile
index bedc62aaede..8e2c5d27216 100644
--- a/drivers/staging/media/Makefile
+++ b/drivers/staging/media/Makefile
@@ -11,3 +11,5 @@ obj-$(CONFIG_VIDEO_OMAP4)	+= omap4iss/
 obj-$(CONFIG_USB_SN9C102)       += sn9c102/
 obj-$(CONFIG_VIDEO_OMAP2)       += omap24xx/
 obj-$(CONFIG_VIDEO_TCM825X)     += omap24xx/
+obj-$(CONFIG_DVB_RTL2832_SDR)	+= rtl2832u_sdr/
+
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c b/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
index 2d36b60bdbf..b2daf5e63f8 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
@@ -267,7 +267,7 @@ int config_ipipe_hw(struct vpfe_ipipe_device *ipipe)
 	}
 
 	ipipe_mode = get_ipipe_mode(ipipe);
-	if (ipipe < 0) {
+	if (ipipe_mode < 0) {
 		pr_err("Failed to get ipipe mode");
 		return -EINVAL;
 	}
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
index d8ce20d2fbd..cda8388cbb8 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
@@ -298,7 +298,7 @@ static int vpfe_attach_irq(struct vpfe_device *vpfe_dev)
 {
 	int ret = 0;
 
-	ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED,
+	ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, 0,
 			  "vpfe_capture0", vpfe_dev);
 	if (ret < 0) {
 		v4l2_err(&vpfe_dev->v4l2_dev,
@@ -306,7 +306,7 @@ static int vpfe_attach_irq(struct vpfe_device *vpfe_dev)
 		return ret;
 	}
 
-	ret = request_irq(vpfe_dev->ccdc_irq1, vpfe_vdint1_isr, IRQF_DISABLED,
+	ret = request_irq(vpfe_dev->ccdc_irq1, vpfe_vdint1_isr, 0,
 			  "vpfe_capture1", vpfe_dev);
 	if (ret < 0) {
 		v4l2_err(&vpfe_dev->v4l2_dev,
@@ -316,7 +316,7 @@ static int vpfe_attach_irq(struct vpfe_device *vpfe_dev)
 	}
 
 	ret = request_irq(vpfe_dev->imp_dma_irq, vpfe_imp_dma_isr,
-			  IRQF_DISABLED, "Imp_Sdram_Irq", vpfe_dev);
+			  0, "Imp_Sdram_Irq", vpfe_dev);
 	if (ret < 0) {
 		v4l2_err(&vpfe_dev->v4l2_dev,
 			 "Error: requesting IMP IRQ interrupt\n");
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.c b/drivers/staging/media/davinci_vpfe/vpfe_video.c
index 1f3b0f9a8d1..8c101cbbee9 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_video.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_video.c
@@ -1201,8 +1201,6 @@ static int vpfe_start_streaming(struct vb2_queue *vq, unsigned int count)
 	unsigned long addr;
 	int ret;
 
-	if (count == 0)
-		return -ENOBUFS;
 	ret = mutex_lock_interruptible(&video->lock);
 	if (ret)
 		goto streamoff;
@@ -1327,6 +1325,7 @@ static int vpfe_reqbufs(struct file *file, void *priv,
 	q->type = req_buf->type;
 	q->io_modes = VB2_MMAP | VB2_USERPTR;
 	q->drv_priv = fh;
+	q->min_buffers_needed = 1;
 	q->ops = &video_qops;
 	q->mem_ops = &vb2_dma_contig_memops;
 	q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
diff --git a/drivers/staging/media/dt3155v4l/dt3155v4l.c b/drivers/staging/media/dt3155v4l/dt3155v4l.c
index 97e7a9b48ac..afbc2e51960 100644
--- a/drivers/staging/media/dt3155v4l/dt3155v4l.c
+++ b/drivers/staging/media/dt3155v4l/dt3155v4l.c
@@ -31,7 +31,6 @@
 
 #include "dt3155v4l.h"
 
-#define DT3155_VENDOR_ID 0x8086
 #define DT3155_DEVICE_ID 0x1223
 
 /* DT3155_CHUNK_SIZE is 4M (2^22) 8 full size buffers */
@@ -391,7 +390,7 @@ dt3155_open(struct file *filp)
 			goto err_alloc_queue;
 		}
 		pd->q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-		pd->q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+		pd->q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 		pd->q->io_modes = VB2_READ | VB2_MMAP;
 		pd->q->ops = &q_ops;
 		pd->q->mem_ops = &vb2_dma_contig_memops;
@@ -975,7 +974,7 @@ dt3155_remove(struct pci_dev *pdev)
 }
 
 static const struct pci_device_id pci_ids[] = {
-	{ PCI_DEVICE(DT3155_VENDOR_ID, DT3155_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, DT3155_DEVICE_ID) },
 	{ 0, /* zero marks the end */ },
 };
 MODULE_DEVICE_TABLE(pci, pci_ids);
diff --git a/drivers/staging/media/go7007/go7007-v4l2.c b/drivers/staging/media/go7007/go7007-v4l2.c
index bdf414e19c8..b397aa3c0f4 100644
--- a/drivers/staging/media/go7007/go7007-v4l2.c
+++ b/drivers/staging/media/go7007/go7007-v4l2.c
@@ -471,7 +471,7 @@ static int go7007_buf_prepare(struct vb2_buffer *vb)
 	return 0;
 }
 
-static int go7007_buf_finish(struct vb2_buffer *vb)
+static void go7007_buf_finish(struct vb2_buffer *vb)
 {
 	struct vb2_queue *vq = vb->vb2_queue;
 	struct go7007 *go = vb2_get_drv_priv(vq);
@@ -484,7 +484,6 @@ static int go7007_buf_finish(struct vb2_buffer *vb)
 			V4L2_BUF_FLAG_PFRAME);
 	buf->flags |= frame_type_flag;
 	buf->field = V4L2_FIELD_NONE;
-	return 0;
 }
 
 static int go7007_start_streaming(struct vb2_queue *q, unsigned int count)
@@ -995,7 +994,7 @@ int go7007_v4l2_init(struct go7007 *go)
 	go->vidq.mem_ops = &vb2_vmalloc_memops;
 	go->vidq.drv_priv = go;
 	go->vidq.buf_struct_size = sizeof(struct go7007_buffer);
-	go->vidq.timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	go->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 	go->vidq.lock = &go->queue_lock;
 	rv = vb2_queue_init(&go->vidq);
 	if (rv)
diff --git a/drivers/staging/media/msi3101/Kconfig b/drivers/staging/media/msi3101/Kconfig
index 0c349c8595e..de0b3bba387 100644
--- a/drivers/staging/media/msi3101/Kconfig
+++ b/drivers/staging/media/msi3101/Kconfig
@@ -1,5 +1,10 @@
 config USB_MSI3101
 	tristate "Mirics MSi3101 SDR Dongle"
-	depends on USB && VIDEO_DEV && VIDEO_V4L2
+	depends on USB && VIDEO_DEV && VIDEO_V4L2 && SPI
 	select VIDEOBUF2_CORE
 	select VIDEOBUF2_VMALLOC
+	select MEDIA_TUNER_MSI001
+
+config MEDIA_TUNER_MSI001
+	tristate "Mirics MSi001"
+	depends on VIDEO_V4L2 && SPI
diff --git a/drivers/staging/media/msi3101/Makefile b/drivers/staging/media/msi3101/Makefile
index 3730654b0eb..daf4f58d9a5 100644
--- a/drivers/staging/media/msi3101/Makefile
+++ b/drivers/staging/media/msi3101/Makefile
@@ -1 +1,2 @@
 obj-$(CONFIG_USB_MSI3101)             += sdr-msi3101.o
+obj-$(CONFIG_MEDIA_TUNER_MSI001)      += msi001.o
diff --git a/drivers/staging/media/msi3101/msi001.c b/drivers/staging/media/msi3101/msi001.c
new file mode 100644
index 00000000000..ac43bae1010
--- /dev/null
+++ b/drivers/staging/media/msi3101/msi001.c
@@ -0,0 +1,500 @@
+/*
+ * Mirics MSi001 silicon tuner driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ * Copyright (C) 2014 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    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.
+ */
+
+#include <linux/module.h>
+#include <linux/gcd.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+static const struct v4l2_frequency_band bands[] = {
+	{
+		.type = V4L2_TUNER_RF,
+		.index = 0,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =   49000000,
+		.rangehigh  =  263000000,
+	}, {
+		.type = V4L2_TUNER_RF,
+		.index = 1,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =  390000000,
+		.rangehigh  =  960000000,
+	},
+};
+
+struct msi001 {
+	struct spi_device *spi;
+	struct v4l2_subdev sd;
+
+	/* Controls */
+	struct v4l2_ctrl_handler hdl;
+	struct v4l2_ctrl *bandwidth_auto;
+	struct v4l2_ctrl *bandwidth;
+	struct v4l2_ctrl *lna_gain;
+	struct v4l2_ctrl *mixer_gain;
+	struct v4l2_ctrl *if_gain;
+
+	unsigned int f_tuner;
+};
+
+static inline struct msi001 *sd_to_msi001(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct msi001, sd);
+}
+
+static int msi001_wreg(struct msi001 *s, u32 data)
+{
+	/* Register format: 4 bits addr + 20 bits value */
+	return spi_write(s->spi, &data, 3);
+};
+
+static int msi001_set_gain(struct msi001 *s, int lna_gain, int mixer_gain,
+		int if_gain)
+{
+	int ret;
+	u32 reg;
+	dev_dbg(&s->spi->dev, "%s: lna=%d mixer=%d if=%d\n", __func__,
+			lna_gain, mixer_gain, if_gain);
+
+	reg = 1 << 0;
+	reg |= (59 - if_gain) << 4;
+	reg |= 0 << 10;
+	reg |= (1 - mixer_gain) << 12;
+	reg |= (1 - lna_gain) << 13;
+	reg |= 4 << 14;
+	reg |= 0 << 17;
+	ret = msi001_wreg(s, reg);
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	dev_dbg(&s->spi->dev, "%s: failed %d\n", __func__, ret);
+	return ret;
+};
+
+static int msi001_set_tuner(struct msi001 *s)
+{
+	int ret, i;
+	unsigned int n, m, thresh, frac, vco_step, tmp, f_if1;
+	u32 reg;
+	u64 f_vco, tmp64;
+	u8 mode, filter_mode, lo_div;
+	static const struct {
+		u32 rf;
+		u8 mode;
+		u8 lo_div;
+	} band_lut[] = {
+		{ 50000000, 0xe1, 16}, /* AM_MODE2, antenna 2 */
+		{108000000, 0x42, 32}, /* VHF_MODE */
+		{330000000, 0x44, 16}, /* B3_MODE */
+		{960000000, 0x48,  4}, /* B45_MODE */
+		{      ~0U, 0x50,  2}, /* BL_MODE */
+	};
+	static const struct {
+		u32 freq;
+		u8 filter_mode;
+	} if_freq_lut[] = {
+		{      0, 0x03}, /* Zero IF */
+		{ 450000, 0x02}, /* 450 kHz IF */
+		{1620000, 0x01}, /* 1.62 MHz IF */
+		{2048000, 0x00}, /* 2.048 MHz IF */
+	};
+	static const struct {
+		u32 freq;
+		u8 val;
+	} bandwidth_lut[] = {
+		{ 200000, 0x00}, /* 200 kHz */
+		{ 300000, 0x01}, /* 300 kHz */
+		{ 600000, 0x02}, /* 600 kHz */
+		{1536000, 0x03}, /* 1.536 MHz */
+		{5000000, 0x04}, /* 5 MHz */
+		{6000000, 0x05}, /* 6 MHz */
+		{7000000, 0x06}, /* 7 MHz */
+		{8000000, 0x07}, /* 8 MHz */
+	};
+
+	unsigned int f_rf = s->f_tuner;
+
+	/*
+	 * bandwidth (Hz)
+	 * 200000, 300000, 600000, 1536000, 5000000, 6000000, 7000000, 8000000
+	 */
+	unsigned int bandwidth;
+
+	/*
+	 * intermediate frequency (Hz)
+	 * 0, 450000, 1620000, 2048000
+	 */
+	unsigned int f_if = 0;
+	#define F_REF 24000000
+	#define R_REF 4
+	#define F_OUT_STEP 1
+
+	dev_dbg(&s->spi->dev,
+			"%s: f_rf=%d f_if=%d\n",
+			__func__, f_rf, f_if);
+
+	for (i = 0; i < ARRAY_SIZE(band_lut); i++) {
+		if (f_rf <= band_lut[i].rf) {
+			mode = band_lut[i].mode;
+			lo_div = band_lut[i].lo_div;
+			break;
+		}
+	}
+
+	if (i == ARRAY_SIZE(band_lut)) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* AM_MODE is upconverted */
+	if ((mode >> 0) & 0x1)
+		f_if1 =  5 * F_REF;
+	else
+		f_if1 =  0;
+
+	for (i = 0; i < ARRAY_SIZE(if_freq_lut); i++) {
+		if (f_if == if_freq_lut[i].freq) {
+			filter_mode = if_freq_lut[i].filter_mode;
+			break;
+		}
+	}
+
+	if (i == ARRAY_SIZE(if_freq_lut)) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* filters */
+	bandwidth = s->bandwidth->val;
+	bandwidth = clamp(bandwidth, 200000U, 8000000U);
+
+	for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) {
+		if (bandwidth <= bandwidth_lut[i].freq) {
+			bandwidth = bandwidth_lut[i].val;
+			break;
+		}
+	}
+
+	if (i == ARRAY_SIZE(bandwidth_lut)) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	s->bandwidth->val = bandwidth_lut[i].freq;
+
+	dev_dbg(&s->spi->dev, "%s: bandwidth selected=%d\n",
+			__func__, bandwidth_lut[i].freq);
+
+	f_vco = (f_rf + f_if + f_if1) * lo_div;
+	tmp64 = f_vco;
+	m = do_div(tmp64, F_REF * R_REF);
+	n = (unsigned int) tmp64;
+
+	vco_step = F_OUT_STEP * lo_div;
+	thresh = (F_REF * R_REF) / vco_step;
+	frac = 1ul * thresh * m / (F_REF * R_REF);
+
+	/* Find out greatest common divisor and divide to smaller. */
+	tmp = gcd(thresh, frac);
+	thresh /= tmp;
+	frac /= tmp;
+
+	/* Force divide to reg max. Resolution will be reduced. */
+	tmp = DIV_ROUND_UP(thresh, 4095);
+	thresh = DIV_ROUND_CLOSEST(thresh, tmp);
+	frac = DIV_ROUND_CLOSEST(frac, tmp);
+
+	/* calc real RF set */
+	tmp = 1ul * F_REF * R_REF * n;
+	tmp += 1ul * F_REF * R_REF * frac / thresh;
+	tmp /= lo_div;
+
+	dev_dbg(&s->spi->dev,
+			"%s: rf=%u:%u n=%d thresh=%d frac=%d\n",
+				__func__, f_rf, tmp, n, thresh, frac);
+
+	ret = msi001_wreg(s, 0x00000e);
+	if (ret)
+		goto err;
+
+	ret = msi001_wreg(s, 0x000003);
+	if (ret)
+		goto err;
+
+	reg = 0 << 0;
+	reg |= mode << 4;
+	reg |= filter_mode << 12;
+	reg |= bandwidth << 14;
+	reg |= 0x02 << 17;
+	reg |= 0x00 << 20;
+	ret = msi001_wreg(s, reg);
+	if (ret)
+		goto err;
+
+	reg = 5 << 0;
+	reg |= thresh << 4;
+	reg |= 1 << 19;
+	reg |= 1 << 21;
+	ret = msi001_wreg(s, reg);
+	if (ret)
+		goto err;
+
+	reg = 2 << 0;
+	reg |= frac << 4;
+	reg |= n << 16;
+	ret = msi001_wreg(s, reg);
+	if (ret)
+		goto err;
+
+	ret = msi001_set_gain(s, s->lna_gain->cur.val, s->mixer_gain->cur.val,
+			s->if_gain->cur.val);
+	if (ret)
+		goto err;
+
+	reg = 6 << 0;
+	reg |= 63 << 4;
+	reg |= 4095 << 10;
+	ret = msi001_wreg(s, reg);
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	dev_dbg(&s->spi->dev, "%s: failed %d\n", __func__, ret);
+	return ret;
+};
+
+static int msi001_s_power(struct v4l2_subdev *sd, int on)
+{
+	struct msi001 *s = sd_to_msi001(sd);
+	int ret;
+	dev_dbg(&s->spi->dev, "%s: on=%d\n", __func__, on);
+
+	if (on)
+		ret = 0;
+	else
+		ret = msi001_wreg(s, 0x000000);
+
+	return ret;
+}
+
+static const struct v4l2_subdev_core_ops msi001_core_ops = {
+	.s_power                  = msi001_s_power,
+};
+
+static int msi001_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *v)
+{
+	struct msi001 *s = sd_to_msi001(sd);
+	dev_dbg(&s->spi->dev, "%s: index=%d\n", __func__, v->index);
+
+	strlcpy(v->name, "Mirics MSi001", sizeof(v->name));
+	v->type = V4L2_TUNER_RF;
+	v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
+	v->rangelow =    49000000;
+	v->rangehigh =  960000000;
+
+	return 0;
+}
+
+static int msi001_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *v)
+{
+	struct msi001 *s = sd_to_msi001(sd);
+	dev_dbg(&s->spi->dev, "%s: index=%d\n", __func__, v->index);
+	return 0;
+}
+
+static int msi001_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+	struct msi001 *s = sd_to_msi001(sd);
+	dev_dbg(&s->spi->dev, "%s: tuner=%d\n", __func__, f->tuner);
+	f->frequency = s->f_tuner;
+	return 0;
+}
+
+static int msi001_s_frequency(struct v4l2_subdev *sd,
+		const struct v4l2_frequency *f)
+{
+	struct msi001 *s = sd_to_msi001(sd);
+	unsigned int band;
+	dev_dbg(&s->spi->dev, "%s: tuner=%d type=%d frequency=%u\n",
+			__func__, f->tuner, f->type, f->frequency);
+
+	if (f->frequency < ((bands[0].rangehigh + bands[1].rangelow) / 2))
+		band = 0;
+	else
+		band = 1;
+	s->f_tuner = clamp_t(unsigned int, f->frequency,
+			bands[band].rangelow, bands[band].rangehigh);
+
+	return msi001_set_tuner(s);
+}
+
+static int msi001_enum_freq_bands(struct v4l2_subdev *sd,
+		struct v4l2_frequency_band *band)
+{
+	struct msi001 *s = sd_to_msi001(sd);
+	dev_dbg(&s->spi->dev, "%s: tuner=%d type=%d index=%d\n",
+			__func__, band->tuner, band->type, band->index);
+
+	if (band->index >= ARRAY_SIZE(bands))
+		return -EINVAL;
+
+	band->capability = bands[band->index].capability;
+	band->rangelow = bands[band->index].rangelow;
+	band->rangehigh = bands[band->index].rangehigh;
+
+	return 0;
+}
+
+static const struct v4l2_subdev_tuner_ops msi001_tuner_ops = {
+	.g_tuner                  = msi001_g_tuner,
+	.s_tuner                  = msi001_s_tuner,
+	.g_frequency              = msi001_g_frequency,
+	.s_frequency              = msi001_s_frequency,
+	.enum_freq_bands          = msi001_enum_freq_bands,
+};
+
+static const struct v4l2_subdev_ops msi001_ops = {
+	.core                     = &msi001_core_ops,
+	.tuner                    = &msi001_tuner_ops,
+};
+
+static int msi001_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct msi001 *s = container_of(ctrl->handler, struct msi001, hdl);
+
+	int ret;
+	dev_dbg(&s->spi->dev,
+			"%s: id=%d name=%s val=%d min=%d max=%d step=%d\n",
+			__func__, ctrl->id, ctrl->name, ctrl->val,
+			ctrl->minimum, ctrl->maximum, ctrl->step);
+
+	switch (ctrl->id) {
+	case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
+	case V4L2_CID_RF_TUNER_BANDWIDTH:
+		ret = msi001_set_tuner(s);
+		break;
+	case  V4L2_CID_RF_TUNER_LNA_GAIN:
+		ret = msi001_set_gain(s, s->lna_gain->val,
+				s->mixer_gain->cur.val, s->if_gain->cur.val);
+		break;
+	case  V4L2_CID_RF_TUNER_MIXER_GAIN:
+		ret = msi001_set_gain(s, s->lna_gain->cur.val,
+				s->mixer_gain->val, s->if_gain->cur.val);
+		break;
+	case  V4L2_CID_RF_TUNER_IF_GAIN:
+		ret = msi001_set_gain(s, s->lna_gain->cur.val,
+				s->mixer_gain->cur.val, s->if_gain->val);
+		break;
+	default:
+		dev_dbg(&s->spi->dev, "%s: unkown control %d\n",
+				__func__, ctrl->id);
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static const struct v4l2_ctrl_ops msi001_ctrl_ops = {
+	.s_ctrl                   = msi001_s_ctrl,
+};
+
+static int msi001_probe(struct spi_device *spi)
+{
+	struct msi001 *s;
+	int ret;
+	dev_dbg(&spi->dev, "%s:\n", __func__);
+
+	s = kzalloc(sizeof(struct msi001), GFP_KERNEL);
+	if (s == NULL) {
+		ret = -ENOMEM;
+		dev_dbg(&spi->dev, "Could not allocate memory for msi001\n");
+		goto err_kfree;
+	}
+
+	s->spi = spi;
+	s->f_tuner = bands[0].rangelow;
+	v4l2_spi_subdev_init(&s->sd, spi, &msi001_ops);
+
+	/* Register controls */
+	v4l2_ctrl_handler_init(&s->hdl, 5);
+	s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+			V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
+	s->bandwidth = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+			V4L2_CID_RF_TUNER_BANDWIDTH, 200000, 8000000, 1, 200000);
+	v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
+	s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+			V4L2_CID_RF_TUNER_LNA_GAIN, 0, 1, 1, 1);
+	s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+			V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 1, 1, 1);
+	s->if_gain = v4l2_ctrl_new_std(&s->hdl, &msi001_ctrl_ops,
+			V4L2_CID_RF_TUNER_IF_GAIN, 0, 59, 1, 0);
+	if (s->hdl.error) {
+		ret = s->hdl.error;
+		dev_err(&s->spi->dev, "Could not initialize controls\n");
+		/* control init failed, free handler */
+		goto err_ctrl_handler_free;
+	}
+
+	s->sd.ctrl_handler = &s->hdl;
+	return 0;
+
+err_ctrl_handler_free:
+	v4l2_ctrl_handler_free(&s->hdl);
+err_kfree:
+	kfree(s);
+	return ret;
+}
+
+static int msi001_remove(struct spi_device *spi)
+{
+	struct v4l2_subdev *sd = spi_get_drvdata(spi);
+	struct msi001 *s = sd_to_msi001(sd);
+	dev_dbg(&spi->dev, "%s:\n", __func__);
+
+	/*
+	 * Registered by v4l2_spi_new_subdev() from master driver, but we must
+	 * unregister it from here. Weird.
+	 */
+	v4l2_device_unregister_subdev(&s->sd);
+	v4l2_ctrl_handler_free(&s->hdl);
+	kfree(s);
+	return 0;
+}
+
+static const struct spi_device_id msi001_id[] = {
+	{"msi001", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(spi, msi001_id);
+
+static struct spi_driver msi001_driver = {
+	.driver = {
+		.name	= "msi001",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= msi001_probe,
+	.remove		= msi001_remove,
+	.id_table	= msi001_id,
+};
+module_spi_driver(msi001_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Mirics MSi001");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c b/drivers/staging/media/msi3101/sdr-msi3101.c
index 5a0400fdb98..260d1b73672 100644
--- a/drivers/staging/media/msi3101/sdr-msi3101.c
+++ b/drivers/staging/media/msi3101/sdr-msi3101.c
@@ -21,25 +21,10 @@
  *  (C) 1999-2004 Nemosoft Unv.
  *  (C) 2004-2006 Luc Saillard (luc@saillard.org)
  *  (C) 2011 Hans de Goede <hdegoede@redhat.com>
- *
- * Development tree of that driver will be on:
- * http://git.linuxtv.org/anttip/media_tree.git/shortlog/refs/heads/mirics
- *
- * GNU Radio plugin "gr-kernel" for device usage will be on:
- * http://git.linuxtv.org/anttip/gr-kernel.git
- *
- * TODO:
- * Help is very highly welcome for these + all the others you could imagine:
- * - split USB ADC interface and RF tuner to own drivers (msi2500 and msi001)
- * - move controls to V4L2 API
- * - use libv4l2 for stream format conversions
- * - gr-kernel: switch to v4l2_mmap (current read eats a lot of cpu)
- * - SDRSharp support
  */
 
 #include <linux/module.h>
 #include <linux/slab.h>
-#include <linux/gcd.h>
 #include <asm/div64.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
@@ -47,317 +32,7 @@
 #include <media/v4l2-event.h>
 #include <linux/usb.h>
 #include <media/videobuf2-vmalloc.h>
-
-struct msi3101_gain {
-	u8 tot:7;
-	u8 baseband:6;
-	bool lna:1;
-	bool mixer:1;
-};
-
-/* 60 – 120 MHz band, lna 24dB, mixer 19dB */
-static const struct msi3101_gain msi3101_gain_lut_120[] = {
-	{  0,  0,  0,  0},
-	{  1,  1,  0,  0},
-	{  2,  2,  0,  0},
-	{  3,  3,  0,  0},
-	{  4,  4,  0,  0},
-	{  5,  5,  0,  0},
-	{  6,  6,  0,  0},
-	{  7,  7,  0,  0},
-	{  8,  8,  0,  0},
-	{  9,  9,  0,  0},
-	{ 10, 10,  0,  0},
-	{ 11, 11,  0,  0},
-	{ 12, 12,  0,  0},
-	{ 13, 13,  0,  0},
-	{ 14, 14,  0,  0},
-	{ 15, 15,  0,  0},
-	{ 16, 16,  0,  0},
-	{ 17, 17,  0,  0},
-	{ 18, 18,  0,  0},
-	{ 19, 19,  0,  0},
-	{ 20, 20,  0,  0},
-	{ 21, 21,  0,  0},
-	{ 22, 22,  0,  0},
-	{ 23, 23,  0,  0},
-	{ 24, 24,  0,  0},
-	{ 25, 25,  0,  0},
-	{ 26, 26,  0,  0},
-	{ 27, 27,  0,  0},
-	{ 28, 28,  0,  0},
-	{ 29,  5,  1,  0},
-	{ 30,  6,  1,  0},
-	{ 31,  7,  1,  0},
-	{ 32,  8,  1,  0},
-	{ 33,  9,  1,  0},
-	{ 34, 10,  1,  0},
-	{ 35, 11,  1,  0},
-	{ 36, 12,  1,  0},
-	{ 37, 13,  1,  0},
-	{ 38, 14,  1,  0},
-	{ 39, 15,  1,  0},
-	{ 40, 16,  1,  0},
-	{ 41, 17,  1,  0},
-	{ 42, 18,  1,  0},
-	{ 43, 19,  1,  0},
-	{ 44, 20,  1,  0},
-	{ 45, 21,  1,  0},
-	{ 46, 22,  1,  0},
-	{ 47, 23,  1,  0},
-	{ 48, 24,  1,  0},
-	{ 49, 25,  1,  0},
-	{ 50, 26,  1,  0},
-	{ 51, 27,  1,  0},
-	{ 52, 28,  1,  0},
-	{ 53, 29,  1,  0},
-	{ 54, 30,  1,  0},
-	{ 55, 31,  1,  0},
-	{ 56, 32,  1,  0},
-	{ 57, 33,  1,  0},
-	{ 58, 34,  1,  0},
-	{ 59, 35,  1,  0},
-	{ 60, 36,  1,  0},
-	{ 61, 37,  1,  0},
-	{ 62, 38,  1,  0},
-	{ 63, 39,  1,  0},
-	{ 64, 40,  1,  0},
-	{ 65, 41,  1,  0},
-	{ 66, 42,  1,  0},
-	{ 67, 43,  1,  0},
-	{ 68, 44,  1,  0},
-	{ 69, 45,  1,  0},
-	{ 70, 46,  1,  0},
-	{ 71, 47,  1,  0},
-	{ 72, 48,  1,  0},
-	{ 73, 49,  1,  0},
-	{ 74, 50,  1,  0},
-	{ 75, 51,  1,  0},
-	{ 76, 52,  1,  0},
-	{ 77, 53,  1,  0},
-	{ 78, 54,  1,  0},
-	{ 79, 55,  1,  0},
-	{ 80, 56,  1,  0},
-	{ 81, 57,  1,  0},
-	{ 82, 58,  1,  0},
-	{ 83, 40,  1,  1},
-	{ 84, 41,  1,  1},
-	{ 85, 42,  1,  1},
-	{ 86, 43,  1,  1},
-	{ 87, 44,  1,  1},
-	{ 88, 45,  1,  1},
-	{ 89, 46,  1,  1},
-	{ 90, 47,  1,  1},
-	{ 91, 48,  1,  1},
-	{ 92, 49,  1,  1},
-	{ 93, 50,  1,  1},
-	{ 94, 51,  1,  1},
-	{ 95, 52,  1,  1},
-	{ 96, 53,  1,  1},
-	{ 97, 54,  1,  1},
-	{ 98, 55,  1,  1},
-	{ 99, 56,  1,  1},
-	{100, 57,  1,  1},
-	{101, 58,  1,  1},
-	{102, 59,  1,  1},
-};
-
-/* 120 – 245 MHz band, lna 24dB, mixer 19dB */
-static const struct msi3101_gain msi3101_gain_lut_245[] = {
-	{  0,  0,  0,  0},
-	{  1,  1,  0,  0},
-	{  2,  2,  0,  0},
-	{  3,  3,  0,  0},
-	{  4,  4,  0,  0},
-	{  5,  5,  0,  0},
-	{  6,  6,  0,  0},
-	{  7,  7,  0,  0},
-	{  8,  8,  0,  0},
-	{  9,  9,  0,  0},
-	{ 10, 10,  0,  0},
-	{ 11, 11,  0,  0},
-	{ 12, 12,  0,  0},
-	{ 13, 13,  0,  0},
-	{ 14, 14,  0,  0},
-	{ 15, 15,  0,  0},
-	{ 16, 16,  0,  0},
-	{ 17, 17,  0,  0},
-	{ 18, 18,  0,  0},
-	{ 19, 19,  0,  0},
-	{ 20, 20,  0,  0},
-	{ 21, 21,  0,  0},
-	{ 22, 22,  0,  0},
-	{ 23, 23,  0,  0},
-	{ 24, 24,  0,  0},
-	{ 25, 25,  0,  0},
-	{ 26, 26,  0,  0},
-	{ 27, 27,  0,  0},
-	{ 28, 28,  0,  0},
-	{ 29,  5,  1,  0},
-	{ 30,  6,  1,  0},
-	{ 31,  7,  1,  0},
-	{ 32,  8,  1,  0},
-	{ 33,  9,  1,  0},
-	{ 34, 10,  1,  0},
-	{ 35, 11,  1,  0},
-	{ 36, 12,  1,  0},
-	{ 37, 13,  1,  0},
-	{ 38, 14,  1,  0},
-	{ 39, 15,  1,  0},
-	{ 40, 16,  1,  0},
-	{ 41, 17,  1,  0},
-	{ 42, 18,  1,  0},
-	{ 43, 19,  1,  0},
-	{ 44, 20,  1,  0},
-	{ 45, 21,  1,  0},
-	{ 46, 22,  1,  0},
-	{ 47, 23,  1,  0},
-	{ 48, 24,  1,  0},
-	{ 49, 25,  1,  0},
-	{ 50, 26,  1,  0},
-	{ 51, 27,  1,  0},
-	{ 52, 28,  1,  0},
-	{ 53, 29,  1,  0},
-	{ 54, 30,  1,  0},
-	{ 55, 31,  1,  0},
-	{ 56, 32,  1,  0},
-	{ 57, 33,  1,  0},
-	{ 58, 34,  1,  0},
-	{ 59, 35,  1,  0},
-	{ 60, 36,  1,  0},
-	{ 61, 37,  1,  0},
-	{ 62, 38,  1,  0},
-	{ 63, 39,  1,  0},
-	{ 64, 40,  1,  0},
-	{ 65, 41,  1,  0},
-	{ 66, 42,  1,  0},
-	{ 67, 43,  1,  0},
-	{ 68, 44,  1,  0},
-	{ 69, 45,  1,  0},
-	{ 70, 46,  1,  0},
-	{ 71, 47,  1,  0},
-	{ 72, 48,  1,  0},
-	{ 73, 49,  1,  0},
-	{ 74, 50,  1,  0},
-	{ 75, 51,  1,  0},
-	{ 76, 52,  1,  0},
-	{ 77, 53,  1,  0},
-	{ 78, 54,  1,  0},
-	{ 79, 55,  1,  0},
-	{ 80, 56,  1,  0},
-	{ 81, 57,  1,  0},
-	{ 82, 58,  1,  0},
-	{ 83, 40,  1,  1},
-	{ 84, 41,  1,  1},
-	{ 85, 42,  1,  1},
-	{ 86, 43,  1,  1},
-	{ 87, 44,  1,  1},
-	{ 88, 45,  1,  1},
-	{ 89, 46,  1,  1},
-	{ 90, 47,  1,  1},
-	{ 91, 48,  1,  1},
-	{ 92, 49,  1,  1},
-	{ 93, 50,  1,  1},
-	{ 94, 51,  1,  1},
-	{ 95, 52,  1,  1},
-	{ 96, 53,  1,  1},
-	{ 97, 54,  1,  1},
-	{ 98, 55,  1,  1},
-	{ 99, 56,  1,  1},
-	{100, 57,  1,  1},
-	{101, 58,  1,  1},
-	{102, 59,  1,  1},
-};
-
-/* 420 – 1000 MHz band, lna 7dB, mixer 19dB */
-static const struct msi3101_gain msi3101_gain_lut_1000[] = {
-	{  0,  0, 0,  0},
-	{  1,  1, 0,  0},
-	{  2,  2, 0,  0},
-	{  3,  3, 0,  0},
-	{  4,  4, 0,  0},
-	{  5,  5, 0,  0},
-	{  6,  6, 0,  0},
-	{  7,  7, 0,  0},
-	{  8,  8, 0,  0},
-	{  9,  9, 0,  0},
-	{ 10, 10, 0,  0},
-	{ 11, 11, 0,  0},
-	{ 12,  5, 1,  0},
-	{ 13,  6, 1,  0},
-	{ 14,  7, 1,  0},
-	{ 15,  8, 1,  0},
-	{ 16,  9, 1,  0},
-	{ 17, 10, 1,  0},
-	{ 18, 11, 1,  0},
-	{ 19, 12, 1,  0},
-	{ 20, 13, 1,  0},
-	{ 21, 14, 1,  0},
-	{ 22, 15, 1,  0},
-	{ 23, 16, 1,  0},
-	{ 24, 17, 1,  0},
-	{ 25, 18, 1,  0},
-	{ 26, 19, 1,  0},
-	{ 27, 20, 1,  0},
-	{ 28, 21, 1,  0},
-	{ 29, 22, 1,  0},
-	{ 30, 23, 1,  0},
-	{ 31, 24, 1,  0},
-	{ 32, 25, 1,  0},
-	{ 33, 26, 1,  0},
-	{ 34, 27, 1,  0},
-	{ 35, 28, 1,  0},
-	{ 36, 29, 1,  0},
-	{ 37, 30, 1,  0},
-	{ 38, 31, 1,  0},
-	{ 39, 32, 1,  0},
-	{ 40, 33, 1,  0},
-	{ 41, 34, 1,  0},
-	{ 42, 35, 1,  0},
-	{ 43, 36, 1,  0},
-	{ 44, 37, 1,  0},
-	{ 45, 38, 1,  0},
-	{ 46, 39, 1,  0},
-	{ 47, 40, 1,  0},
-	{ 48, 41, 1,  0},
-	{ 49, 42, 1,  0},
-	{ 50, 43, 1,  0},
-	{ 51, 44, 1,  0},
-	{ 52, 45, 1,  0},
-	{ 53, 46, 1,  0},
-	{ 54, 47, 1,  0},
-	{ 55, 48, 1,  0},
-	{ 56, 49, 1,  0},
-	{ 57, 50, 1,  0},
-	{ 58, 51, 1,  0},
-	{ 59, 52, 1,  0},
-	{ 60, 53, 1,  0},
-	{ 61, 54, 1,  0},
-	{ 62, 55, 1,  0},
-	{ 63, 56, 1,  0},
-	{ 64, 57, 1,  0},
-	{ 65, 58, 1,  0},
-	{ 66, 40, 1,  1},
-	{ 67, 41, 1,  1},
-	{ 68, 42, 1,  1},
-	{ 69, 43, 1,  1},
-	{ 70, 44, 1,  1},
-	{ 71, 45, 1,  1},
-	{ 72, 46, 1,  1},
-	{ 73, 47, 1,  1},
-	{ 74, 48, 1,  1},
-	{ 75, 49, 1,  1},
-	{ 76, 50, 1,  1},
-	{ 77, 51, 1,  1},
-	{ 78, 52, 1,  1},
-	{ 79, 53, 1,  1},
-	{ 80, 54, 1,  1},
-	{ 81, 55, 1,  1},
-	{ 82, 56, 1,  1},
-	{ 83, 57, 1,  1},
-	{ 84, 58, 1,  1},
-	{ 85, 59, 1,  1},
-};
+#include <linux/spi/spi.h>
 
 /*
  *   iConfiguration          0
@@ -377,13 +52,54 @@ static const struct msi3101_gain msi3101_gain_lut_1000[] = {
 #define MAX_ISOC_ERRORS         20
 
 /* TODO: These should be moved to V4L2 API */
-#define MSI3101_CID_SAMPLING_MODE         ((V4L2_CID_USER_BASE | 0xf000) + 0)
-#define MSI3101_CID_SAMPLING_RATE         ((V4L2_CID_USER_BASE | 0xf000) + 1)
-#define MSI3101_CID_SAMPLING_RESOLUTION   ((V4L2_CID_USER_BASE | 0xf000) + 2)
-#define MSI3101_CID_TUNER_RF              ((V4L2_CID_USER_BASE | 0xf000) + 10)
-#define MSI3101_CID_TUNER_BW              ((V4L2_CID_USER_BASE | 0xf000) + 11)
-#define MSI3101_CID_TUNER_IF              ((V4L2_CID_USER_BASE | 0xf000) + 12)
-#define MSI3101_CID_TUNER_GAIN            ((V4L2_CID_USER_BASE | 0xf000) + 13)
+#define V4L2_PIX_FMT_SDR_S8     v4l2_fourcc('D', 'S', '0', '8') /* signed 8-bit */
+#define V4L2_PIX_FMT_SDR_S12    v4l2_fourcc('D', 'S', '1', '2') /* signed 12-bit */
+#define V4L2_PIX_FMT_SDR_S14    v4l2_fourcc('D', 'S', '1', '4') /* signed 14-bit */
+#define V4L2_PIX_FMT_SDR_MSI2500_384 v4l2_fourcc('M', '3', '8', '4') /* Mirics MSi2500 format 384 */
+
+static const struct v4l2_frequency_band bands[] = {
+	{
+		.tuner = 0,
+		.type = V4L2_TUNER_ADC,
+		.index = 0,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =  1200000,
+		.rangehigh  = 15000000,
+	},
+};
+
+/* stream formats */
+struct msi3101_format {
+	char	*name;
+	u32	pixelformat;
+};
+
+/* format descriptions for capture and preview */
+static struct msi3101_format formats[] = {
+	{
+		.name		= "IQ U8",
+		.pixelformat	= V4L2_SDR_FMT_CU8,
+	}, {
+		.name		= "IQ U16LE",
+		.pixelformat	=  V4L2_SDR_FMT_CU16LE,
+#if 0
+	}, {
+		.name		= "8-bit signed",
+		.pixelformat	= V4L2_PIX_FMT_SDR_S8,
+	}, {
+		.name		= "10+2-bit signed",
+		.pixelformat	= V4L2_PIX_FMT_SDR_MSI2500_384,
+	}, {
+		.name		= "12-bit signed",
+		.pixelformat	= V4L2_PIX_FMT_SDR_S12,
+	}, {
+		.name		= "14-bit signed",
+		.pixelformat	= V4L2_PIX_FMT_SDR_S14,
+#endif
+	},
+};
+
+static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats);
 
 /* intermediate buffers with raw data from the USB device */
 struct msi3101_frame_buf {
@@ -394,6 +110,8 @@ struct msi3101_frame_buf {
 struct msi3101_state {
 	struct video_device vdev;
 	struct v4l2_device v4l2_dev;
+	struct v4l2_subdev *v4l2_subdev;
+	struct spi_master *master;
 
 	/* videobuf2 queue and queued buffers list */
 	struct vb2_queue vb_queue;
@@ -407,24 +125,22 @@ struct msi3101_state {
 	/* Pointer to our usb_device, will be NULL after unplug */
 	struct usb_device *udev; /* Both mutexes most be hold when setting! */
 
+	unsigned int f_adc;
+	u32 pixelformat;
+
 	unsigned int isoc_errors; /* number of contiguous ISOC errors */
 	unsigned int vb_full; /* vb is full and packets dropped */
 
 	struct urb *urbs[MAX_ISO_BUFS];
-	int (*convert_stream)(struct msi3101_state *s, u32 *dst, u8 *src,
+	int (*convert_stream)(struct msi3101_state *s, u8 *dst, u8 *src,
 			unsigned int src_len);
 
 	/* Controls */
-	struct v4l2_ctrl_handler ctrl_handler;
-	struct v4l2_ctrl *ctrl_sampling_rate;
-	struct v4l2_ctrl *ctrl_tuner_rf;
-	struct v4l2_ctrl *ctrl_tuner_bw;
-	struct v4l2_ctrl *ctrl_tuner_if;
-	struct v4l2_ctrl *ctrl_tuner_gain;
+	struct v4l2_ctrl_handler hdl;
 
 	u32 next_sample; /* for track lost packets */
 	u32 sample; /* for sample rate calc */
-	unsigned long jiffies;
+	unsigned long jiffies_next;
 	unsigned int sample_ctrl_bit[4];
 };
 
@@ -448,98 +164,79 @@ leave:
 
 /*
  * +===========================================================================
- * |   00-1023 | USB packet type '384'
+ * |   00-1023 | USB packet type '504'
  * +===========================================================================
  * |   00-  03 | sequence number of first sample in that USB packet
  * +---------------------------------------------------------------------------
  * |   04-  15 | garbage
  * +---------------------------------------------------------------------------
- * |   16- 175 | samples
- * +---------------------------------------------------------------------------
- * |  176- 179 | control bits for previous samples
- * +---------------------------------------------------------------------------
- * |  180- 339 | samples
- * +---------------------------------------------------------------------------
- * |  340- 343 | control bits for previous samples
- * +---------------------------------------------------------------------------
- * |  344- 503 | samples
- * +---------------------------------------------------------------------------
- * |  504- 507 | control bits for previous samples
- * +---------------------------------------------------------------------------
- * |  508- 667 | samples
- * +---------------------------------------------------------------------------
- * |  668- 671 | control bits for previous samples
- * +---------------------------------------------------------------------------
- * |  672- 831 | samples
- * +---------------------------------------------------------------------------
- * |  832- 835 | control bits for previous samples
- * +---------------------------------------------------------------------------
- * |  836- 995 | samples
- * +---------------------------------------------------------------------------
- * |  996- 999 | control bits for previous samples
- * +---------------------------------------------------------------------------
- * | 1000-1023 | garbage
+ * |   16-1023 | samples
  * +---------------------------------------------------------------------------
- *
- * Bytes 4 - 7 could have some meaning?
- *
- * Control bits for previous samples is 32-bit field, containing 16 x 2-bit
- * numbers. This results one 2-bit number for 8 samples. It is likely used for
- * for bit shifting sample by given bits, increasing actual sampling resolution.
- * Number 2 (0b10) was never seen.
- *
- * 6 * 16 * 2 * 4 = 768 samples. 768 * 4 = 3072 bytes
+ * signed 8-bit sample
+ * 504 * 2 = 1008 samples
  */
+static int msi3101_convert_stream_504(struct msi3101_state *s, u8 *dst,
+		u8 *src, unsigned int src_len)
+{
+	int i, i_max, dst_len = 0;
+	u32 sample_num[3];
 
-/*
- * Integer to 32-bit IEEE floating point representation routine is taken
- * from Radeon R600 driver (drivers/gpu/drm/radeon/r600_blit_kms.c).
- *
- * TODO: Currently we do conversion here in Kernel, but in future that will
- * be moved to the libv4l2 library as video format conversions are.
- */
-#define I2F_FRAC_BITS  23
-#define I2F_MASK ((1 << I2F_FRAC_BITS) - 1)
+	/* There could be 1-3 1024 bytes URB frames */
+	i_max = src_len / 1024;
 
-/*
- * Converts signed 8-bit integer into 32-bit IEEE floating point
- * representation.
- */
-static u32 msi3101_convert_sample_504(struct msi3101_state *s, u16 x)
-{
-	u32 msb, exponent, fraction, sign;
+	for (i = 0; i < i_max; i++) {
+		sample_num[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | src[0] << 0;
+		if (i == 0 && s->next_sample != sample_num[0]) {
+			dev_dbg_ratelimited(&s->udev->dev,
+					"%d samples lost, %d %08x:%08x\n",
+					sample_num[0] - s->next_sample,
+					src_len, s->next_sample, sample_num[0]);
+		}
 
-	/* Zero is special */
-	if (!x)
-		return 0;
+		/*
+		 * Dump all unknown 'garbage' data - maybe we will discover
+		 * someday if there is something rational...
+		 */
+		dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]);
 
-	/* Negative / positive value */
-	if (x & (1 << 7)) {
-		x = -x;
-		x &= 0x7f; /* result is 7 bit ... + sign */
-		sign = 1 << 31;
-	} else {
-		sign = 0 << 31;
+		/* 504 x I+Q samples */
+		src += 16;
+		memcpy(dst, src, 1008);
+		src += 1008;
+		dst += 1008;
+		dst_len += 1008;
 	}
 
-	/* Get location of the most significant bit */
-	msb = __fls(x);
+	/* calculate samping rate and output it in 10 seconds intervals */
+	if ((s->jiffies_next + msecs_to_jiffies(10000)) <= jiffies) {
+		unsigned long jiffies_now = jiffies;
+		unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies_next);
+		unsigned int samples = sample_num[i_max - 1] - s->sample;
+		s->jiffies_next = jiffies_now;
+		s->sample = sample_num[i_max - 1];
+		dev_dbg(&s->udev->dev,
+				"slen=%d samples=%u msecs=%lu sampling rate=%lu\n",
+				src_len, samples, msecs,
+				samples * 1000UL / msecs);
+	}
 
-	fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK;
-	exponent = (127 + msb) << I2F_FRAC_BITS;
+	/* next sample (sample = sample + i * 504) */
+	s->next_sample = sample_num[i_max - 1] + 504;
 
-	return (fraction + exponent) | sign;
+	return dst_len;
 }
 
-static int msi3101_convert_stream_504(struct msi3101_state *s, u32 *dst,
+static int msi3101_convert_stream_504_u8(struct msi3101_state *s, u8 *dst,
 		u8 *src, unsigned int src_len)
 {
 	int i, j, i_max, dst_len = 0;
-	u16 sample[2];
 	u32 sample_num[3];
+	s8 *s8src;
+	u8 *u8dst;
 
 	/* There could be 1-3 1024 bytes URB frames */
 	i_max = src_len / 1024;
+	u8dst = (u8 *) dst;
 
 	for (i = 0; i < i_max; i++) {
 		sample_num[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | src[0] << 0;
@@ -556,30 +253,28 @@ static int msi3101_convert_stream_504(struct msi3101_state *s, u32 *dst,
 		 */
 		dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]);
 
+		/* 504 x I+Q samples */
 		src += 16;
-		for (j = 0; j < 1008; j += 2) {
-			sample[0] = src[j + 0];
-			sample[1] = src[j + 1];
 
-			*dst++ = msi3101_convert_sample_504(s, sample[0]);
-			*dst++ = msi3101_convert_sample_504(s, sample[1]);
-		}
-		/* 504 x I+Q 32bit float samples */
-		dst_len += 504 * 2 * 4;
+		s8src = (s8 *) src;
+		for (j = 0; j < 1008; j++)
+			*u8dst++ = *s8src++ + 128;
+
 		src += 1008;
+		dst += 1008;
+		dst_len += 1008;
 	}
 
 	/* calculate samping rate and output it in 10 seconds intervals */
-	if ((s->jiffies + msecs_to_jiffies(10000)) <= jiffies) {
-		unsigned long jiffies_now = jiffies;
-		unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies);
+	if (unlikely(time_is_before_jiffies(s->jiffies_next))) {
+#define MSECS 10000UL
 		unsigned int samples = sample_num[i_max - 1] - s->sample;
-		s->jiffies = jiffies_now;
+		s->jiffies_next = jiffies + msecs_to_jiffies(MSECS);
 		s->sample = sample_num[i_max - 1];
 		dev_dbg(&s->udev->dev,
 				"slen=%d samples=%u msecs=%lu sampling rate=%lu\n",
-				src_len, samples, msecs,
-				samples * 1000UL / msecs);
+				src_len, samples, MSECS,
+				samples * 1000UL / MSECS);
 	}
 
 	/* next sample (sample = sample + i * 504) */
@@ -589,48 +284,53 @@ static int msi3101_convert_stream_504(struct msi3101_state *s, u32 *dst,
 }
 
 /*
- * Converts signed ~10+2-bit integer into 32-bit IEEE floating point
- * representation.
+ * +===========================================================================
+ * |   00-1023 | USB packet type '384'
+ * +===========================================================================
+ * |   00-  03 | sequence number of first sample in that USB packet
+ * +---------------------------------------------------------------------------
+ * |   04-  15 | garbage
+ * +---------------------------------------------------------------------------
+ * |   16- 175 | samples
+ * +---------------------------------------------------------------------------
+ * |  176- 179 | control bits for previous samples
+ * +---------------------------------------------------------------------------
+ * |  180- 339 | samples
+ * +---------------------------------------------------------------------------
+ * |  340- 343 | control bits for previous samples
+ * +---------------------------------------------------------------------------
+ * |  344- 503 | samples
+ * +---------------------------------------------------------------------------
+ * |  504- 507 | control bits for previous samples
+ * +---------------------------------------------------------------------------
+ * |  508- 667 | samples
+ * +---------------------------------------------------------------------------
+ * |  668- 671 | control bits for previous samples
+ * +---------------------------------------------------------------------------
+ * |  672- 831 | samples
+ * +---------------------------------------------------------------------------
+ * |  832- 835 | control bits for previous samples
+ * +---------------------------------------------------------------------------
+ * |  836- 995 | samples
+ * +---------------------------------------------------------------------------
+ * |  996- 999 | control bits for previous samples
+ * +---------------------------------------------------------------------------
+ * | 1000-1023 | garbage
+ * +---------------------------------------------------------------------------
+ *
+ * Bytes 4 - 7 could have some meaning?
+ *
+ * Control bits for previous samples is 32-bit field, containing 16 x 2-bit
+ * numbers. This results one 2-bit number for 8 samples. It is likely used for
+ * for bit shifting sample by given bits, increasing actual sampling resolution.
+ * Number 2 (0b10) was never seen.
+ *
+ * 6 * 16 * 2 * 4 = 768 samples. 768 * 4 = 3072 bytes
  */
-static u32 msi3101_convert_sample_384(struct msi3101_state *s, u16 x, int shift)
-{
-	u32 msb, exponent, fraction, sign;
-	s->sample_ctrl_bit[shift]++;
-
-	/* Zero is special */
-	if (!x)
-		return 0;
-
-	if (shift == 3)
-		shift =	2;
-
-	/* Convert 10-bit two's complement to 12-bit */
-	if (x & (1 << 9)) {
-		x |= ~0U << 10; /* set all the rest bits to one */
-		x <<= shift;
-		x = -x;
-		x &= 0x7ff; /* result is 11 bit ... + sign */
-		sign = 1 << 31;
-	} else {
-		x <<= shift;
-		sign = 0 << 31;
-	}
-
-	/* Get location of the most significant bit */
-	msb = __fls(x);
-
-	fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK;
-	exponent = (127 + msb) << I2F_FRAC_BITS;
-
-	return (fraction + exponent) | sign;
-}
-
-static int msi3101_convert_stream_384(struct msi3101_state *s, u32 *dst,
+static int msi3101_convert_stream_384(struct msi3101_state *s, u8 *dst,
 		u8 *src, unsigned int src_len)
 {
-	int i, j, k, l, i_max, dst_len = 0;
-	u16 sample[4];
-	u32 bits;
+	int i, i_max, dst_len = 0;
 	u32 sample_num[3];
 
 	/* There could be 1-3 1024 bytes URB frames */
@@ -651,38 +351,20 @@ static int msi3101_convert_stream_384(struct msi3101_state *s, u32 *dst,
 		dev_dbg_ratelimited(&s->udev->dev,
 				"%*ph  %*ph\n", 12, &src[4], 24, &src[1000]);
 
+		/* 384 x I+Q samples */
 		src += 16;
-		for (j = 0; j < 6; j++) {
-			bits = src[160 + 3] << 24 | src[160 + 2] << 16 | src[160 + 1] << 8 | src[160 + 0] << 0;
-			for (k = 0; k < 16; k++) {
-				for (l = 0; l < 10; l += 5) {
-					sample[0] = (src[l + 0] & 0xff) >> 0 | (src[l + 1] & 0x03) << 8;
-					sample[1] = (src[l + 1] & 0xfc) >> 2 | (src[l + 2] & 0x0f) << 6;
-					sample[2] = (src[l + 2] & 0xf0) >> 4 | (src[l + 3] & 0x3f) << 4;
-					sample[3] = (src[l + 3] & 0xc0) >> 6 | (src[l + 4] & 0xff) << 2;
-
-					*dst++ = msi3101_convert_sample_384(s, sample[0], (bits >> (2 * k)) & 0x3);
-					*dst++ = msi3101_convert_sample_384(s, sample[1], (bits >> (2 * k)) & 0x3);
-					*dst++ = msi3101_convert_sample_384(s, sample[2], (bits >> (2 * k)) & 0x3);
-					*dst++ = msi3101_convert_sample_384(s, sample[3], (bits >> (2 * k)) & 0x3);
-				}
-				src += 10;
-			}
-			dev_dbg_ratelimited(&s->udev->dev,
-					"sample control bits %08x\n", bits);
-			src += 4;
-		}
-		/* 384 x I+Q 32bit float samples */
-		dst_len += 384 * 2 * 4;
-		src += 24;
+		memcpy(dst, src, 984);
+		src += 984 + 24;
+		dst += 984;
+		dst_len += 984;
 	}
 
 	/* calculate samping rate and output it in 10 seconds intervals */
-	if ((s->jiffies + msecs_to_jiffies(10000)) <= jiffies) {
+	if ((s->jiffies_next + msecs_to_jiffies(10000)) <= jiffies) {
 		unsigned long jiffies_now = jiffies;
-		unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies);
+		unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies_next);
 		unsigned int samples = sample_num[i_max - 1] - s->sample;
-		s->jiffies = jiffies_now;
+		s->jiffies_next = jiffies_now;
 		s->sample = sample_num[i_max - 1];
 		dev_dbg(&s->udev->dev,
 				"slen=%d samples=%u msecs=%lu sampling rate=%lu bits=%d.%d.%d.%d\n",
@@ -699,40 +381,21 @@ static int msi3101_convert_stream_384(struct msi3101_state *s, u32 *dst,
 }
 
 /*
- * Converts signed 12-bit integer into 32-bit IEEE floating point
- * representation.
+ * +===========================================================================
+ * |   00-1023 | USB packet type '336'
+ * +===========================================================================
+ * |   00-  03 | sequence number of first sample in that USB packet
+ * +---------------------------------------------------------------------------
+ * |   04-  15 | garbage
+ * +---------------------------------------------------------------------------
+ * |   16-1023 | samples
+ * +---------------------------------------------------------------------------
+ * signed 12-bit sample
  */
-static u32 msi3101_convert_sample_336(struct msi3101_state *s, u16 x)
-{
-	u32 msb, exponent, fraction, sign;
-
-	/* Zero is special */
-	if (!x)
-		return 0;
-
-	/* Negative / positive value */
-	if (x & (1 << 11)) {
-		x = -x;
-		x &= 0x7ff; /* result is 11 bit ... + sign */
-		sign = 1 << 31;
-	} else {
-		sign = 0 << 31;
-	}
-
-	/* Get location of the most significant bit */
-	msb = __fls(x);
-
-	fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK;
-	exponent = (127 + msb) << I2F_FRAC_BITS;
-
-	return (fraction + exponent) | sign;
-}
-
-static int msi3101_convert_stream_336(struct msi3101_state *s, u32 *dst,
+static int msi3101_convert_stream_336(struct msi3101_state *s, u8 *dst,
 		u8 *src, unsigned int src_len)
 {
-	int i, j, i_max, dst_len = 0;
-	u16 sample[2];
+	int i, i_max, dst_len = 0;
 	u32 sample_num[3];
 
 	/* There could be 1-3 1024 bytes URB frames */
@@ -753,25 +416,20 @@ static int msi3101_convert_stream_336(struct msi3101_state *s, u32 *dst,
 		 */
 		dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]);
 
+		/* 336 x I+Q samples */
 		src += 16;
-		for (j = 0; j < 1008; j += 3) {
-			sample[0] = (src[j + 0] & 0xff) >> 0 | (src[j + 1] & 0x0f) << 8;
-			sample[1] = (src[j + 1] & 0xf0) >> 4 | (src[j + 2] & 0xff) << 4;
-
-			*dst++ = msi3101_convert_sample_336(s, sample[0]);
-			*dst++ = msi3101_convert_sample_336(s, sample[1]);
-		}
-		/* 336 x I+Q 32bit float samples */
-		dst_len += 336 * 2 * 4;
+		memcpy(dst, src, 1008);
 		src += 1008;
+		dst += 1008;
+		dst_len += 1008;
 	}
 
 	/* calculate samping rate and output it in 10 seconds intervals */
-	if ((s->jiffies + msecs_to_jiffies(10000)) <= jiffies) {
+	if ((s->jiffies_next + msecs_to_jiffies(10000)) <= jiffies) {
 		unsigned long jiffies_now = jiffies;
-		unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies);
+		unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies_next);
 		unsigned int samples = sample_num[i_max - 1] - s->sample;
-		s->jiffies = jiffies_now;
+		s->jiffies_next = jiffies_now;
 		s->sample = sample_num[i_max - 1];
 		dev_dbg(&s->udev->dev,
 				"slen=%d samples=%u msecs=%lu sampling rate=%lu\n",
@@ -786,41 +444,75 @@ static int msi3101_convert_stream_336(struct msi3101_state *s, u32 *dst,
 }
 
 /*
- * Converts signed 14-bit integer into 32-bit IEEE floating point
- * representation.
+ * +===========================================================================
+ * |   00-1023 | USB packet type '252'
+ * +===========================================================================
+ * |   00-  03 | sequence number of first sample in that USB packet
+ * +---------------------------------------------------------------------------
+ * |   04-  15 | garbage
+ * +---------------------------------------------------------------------------
+ * |   16-1023 | samples
+ * +---------------------------------------------------------------------------
+ * signed 14-bit sample
  */
-static u32 msi3101_convert_sample_252(struct msi3101_state *s, u16 x)
+static int msi3101_convert_stream_252(struct msi3101_state *s, u8 *dst,
+		u8 *src, unsigned int src_len)
 {
-	u32 msb, exponent, fraction, sign;
+	int i, i_max, dst_len = 0;
+	u32 sample_num[3];
 
-	/* Zero is special */
-	if (!x)
-		return 0;
+	/* There could be 1-3 1024 bytes URB frames */
+	i_max = src_len / 1024;
 
-	/* Negative / positive value */
-	if (x & (1 << 13)) {
-		x = -x;
-		x &= 0x1fff; /* result is 13 bit ... + sign */
-		sign = 1 << 31;
-	} else {
-		sign = 0 << 31;
+	for (i = 0; i < i_max; i++) {
+		sample_num[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | src[0] << 0;
+		if (i == 0 && s->next_sample != sample_num[0]) {
+			dev_dbg_ratelimited(&s->udev->dev,
+					"%d samples lost, %d %08x:%08x\n",
+					sample_num[0] - s->next_sample,
+					src_len, s->next_sample, sample_num[0]);
+		}
+
+		/*
+		 * Dump all unknown 'garbage' data - maybe we will discover
+		 * someday if there is something rational...
+		 */
+		dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]);
+
+		/* 252 x I+Q samples */
+		src += 16;
+		memcpy(dst, src, 1008);
+		src += 1008;
+		dst += 1008;
+		dst_len += 1008;
 	}
 
-	/* Get location of the most significant bit */
-	msb = __fls(x);
+	/* calculate samping rate and output it in 10 seconds intervals */
+	if ((s->jiffies_next + msecs_to_jiffies(10000)) <= jiffies) {
+		unsigned long jiffies_now = jiffies;
+		unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies_next);
+		unsigned int samples = sample_num[i_max - 1] - s->sample;
+		s->jiffies_next = jiffies_now;
+		s->sample = sample_num[i_max - 1];
+		dev_dbg(&s->udev->dev,
+				"slen=%d samples=%u msecs=%lu sampling rate=%lu\n",
+				src_len, samples, msecs,
+				samples * 1000UL / msecs);
+	}
 
-	fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK;
-	exponent = (127 + msb) << I2F_FRAC_BITS;
+	/* next sample (sample = sample + i * 252) */
+	s->next_sample = sample_num[i_max - 1] + 252;
 
-	return (fraction + exponent) | sign;
+	return dst_len;
 }
 
-static int msi3101_convert_stream_252(struct msi3101_state *s, u32 *dst,
+static int msi3101_convert_stream_252_u16(struct msi3101_state *s, u8 *dst,
 		u8 *src, unsigned int src_len)
 {
 	int i, j, i_max, dst_len = 0;
-	u16 sample[2];
 	u32 sample_num[3];
+	u16 *u16dst = (u16 *) dst;
+	struct {signed int x:14;} se;
 
 	/* There could be 1-3 1024 bytes URB frames */
 	i_max = src_len / 1024;
@@ -840,30 +532,44 @@ static int msi3101_convert_stream_252(struct msi3101_state *s, u32 *dst,
 		 */
 		dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]);
 
+		/* 252 x I+Q samples */
 		src += 16;
+
 		for (j = 0; j < 1008; j += 4) {
-			sample[0] = src[j + 0] >> 0 | src[j + 1] << 8;
-			sample[1] = src[j + 2] >> 0 | src[j + 3] << 8;
+			unsigned int usample[2];
+			int ssample[2];
+
+			usample[0] = src[j + 0] >> 0 | src[j + 1] << 8;
+			usample[1] = src[j + 2] >> 0 | src[j + 3] << 8;
 
-			*dst++ = msi3101_convert_sample_252(s, sample[0]);
-			*dst++ = msi3101_convert_sample_252(s, sample[1]);
+			/* sign extension from 14-bit to signed int */
+			ssample[0] = se.x = usample[0];
+			ssample[1] = se.x = usample[1];
+
+			/* from signed to unsigned */
+			usample[0] = ssample[0] + 8192;
+			usample[1] = ssample[1] + 8192;
+
+			/* from 14-bit to 16-bit */
+			*u16dst++ = (usample[0] << 2) | (usample[0] >> 12);
+			*u16dst++ = (usample[1] << 2) | (usample[1] >> 12);
 		}
-		/* 252 x I+Q 32bit float samples */
-		dst_len += 252 * 2 * 4;
+
 		src += 1008;
+		dst += 1008;
+		dst_len += 1008;
 	}
 
 	/* calculate samping rate and output it in 10 seconds intervals */
-	if ((s->jiffies + msecs_to_jiffies(10000)) <= jiffies) {
-		unsigned long jiffies_now = jiffies;
-		unsigned long msecs = jiffies_to_msecs(jiffies_now) - jiffies_to_msecs(s->jiffies);
+	if (unlikely(time_is_before_jiffies(s->jiffies_next))) {
+#define MSECS 10000UL
 		unsigned int samples = sample_num[i_max - 1] - s->sample;
-		s->jiffies = jiffies_now;
+		s->jiffies_next = jiffies + msecs_to_jiffies(MSECS);
 		s->sample = sample_num[i_max - 1];
 		dev_dbg(&s->udev->dev,
 				"slen=%d samples=%u msecs=%lu sampling rate=%lu\n",
-				src_len, samples, msecs,
-				samples * 1000UL / msecs);
+				src_len, samples, MSECS,
+				samples * 1000UL / MSECS);
 	}
 
 	/* next sample (sample = sample + i * 252) */
@@ -883,14 +589,14 @@ static void msi3101_isoc_handler(struct urb *urb)
 	unsigned char *iso_buf = NULL;
 	struct msi3101_frame_buf *fbuf;
 
-	if (urb->status == -ENOENT || urb->status == -ECONNRESET ||
-			urb->status == -ESHUTDOWN) {
+	if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET ||
+			urb->status == -ESHUTDOWN)) {
 		dev_dbg(&s->udev->dev, "URB (%p) unlinked %ssynchronuously\n",
 				urb, urb->status == -ENOENT ? "" : "a");
 		return;
 	}
 
-	if (urb->status != 0) {
+	if (unlikely(urb->status != 0)) {
 		dev_dbg(&s->udev->dev,
 				"msi3101_isoc_handler() called with status %d\n",
 				urb->status);
@@ -910,28 +616,28 @@ static void msi3101_isoc_handler(struct urb *urb)
 
 		/* Check frame error */
 		fstatus = urb->iso_frame_desc[i].status;
-		if (fstatus) {
+		if (unlikely(fstatus)) {
 			dev_dbg_ratelimited(&s->udev->dev,
 					"frame=%d/%d has error %d skipping\n",
 					i, urb->number_of_packets, fstatus);
-			goto skip;
+			continue;
 		}
 
 		/* Check if that frame contains data */
 		flen = urb->iso_frame_desc[i].actual_length;
-		if (flen == 0)
-			goto skip;
+		if (unlikely(flen == 0))
+			continue;
 
 		iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 
 		/* Get free framebuffer */
 		fbuf = msi3101_get_next_fill_buf(s);
-		if (fbuf == NULL) {
+		if (unlikely(fbuf == NULL)) {
 			s->vb_full++;
 			dev_dbg_ratelimited(&s->udev->dev,
 					"videobuf is full, %d packets dropped\n",
 					s->vb_full);
-			goto skip;
+			continue;
 		}
 
 		/* fill framebuffer */
@@ -939,13 +645,11 @@ static void msi3101_isoc_handler(struct urb *urb)
 		flen = s->convert_stream(s, ptr, iso_buf, flen);
 		vb2_set_plane_payload(&fbuf->vb, 0, flen);
 		vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE);
-skip:
-		;
 	}
 
 handler_end:
 	i = usb_submit_urb(urb, GFP_ATOMIC);
-	if (i != 0)
+	if (unlikely(i != 0))
 		dev_dbg(&s->udev->dev,
 				"Error (%d) re-submitting urb in msi3101_isoc_handler\n",
 				i);
@@ -1008,7 +712,7 @@ static int msi3101_isoc_init(struct msi3101_state *s)
 	udev = s->udev;
 
 	ret = usb_set_interface(s->udev, 0, 1);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
 	/* Allocate and init Isochronuous urbs */
@@ -1094,9 +798,9 @@ static void msi3101_disconnect(struct usb_interface *intf)
 	mutex_lock(&s->v4l2_lock);
 	/* No need to keep the urbs around after disconnection */
 	s->udev = NULL;
-
 	v4l2_device_disconnect(&s->v4l2_dev);
 	video_unregister_device(&s->vdev);
+	spi_unregister_master(s->master);
 	mutex_unlock(&s->v4l2_lock);
 	mutex_unlock(&s->vb_queue_lock);
 
@@ -1112,14 +816,12 @@ static int msi3101_querycap(struct file *file, void *fh,
 	strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver));
 	strlcpy(cap->card, s->vdev.name, sizeof(cap->card));
 	usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info));
-	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
-			V4L2_CAP_READWRITE;
-	cap->device_caps = V4L2_CAP_TUNER;
+	cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING |
+			V4L2_CAP_READWRITE | V4L2_CAP_TUNER;
 	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 	return 0;
 }
 
-
 /* Videobuf2 operations */
 static int msi3101_queue_setup(struct vb2_queue *vq,
 		const struct v4l2_format *fmt, unsigned int *nbuffers,
@@ -1129,31 +831,20 @@ static int msi3101_queue_setup(struct vb2_queue *vq,
 	dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers);
 
 	/* Absolute min and max number of buffers available for mmap() */
-	*nbuffers = 32;
+	*nbuffers = clamp_t(unsigned int, *nbuffers, 8, 32);
 	*nplanes = 1;
 	/*
 	 *   3, wMaxPacketSize 3x 1024 bytes
 	 * 504, max IQ sample pairs per 1024 frame
 	 *   2, two samples, I and Q
-	 *   4, 32-bit float
+	 *   2, 16-bit is enough for single sample
 	 */
-	sizes[0] = PAGE_ALIGN(3 * 504 * 2 * 4); /* = 12096 */
+	sizes[0] = PAGE_ALIGN(3 * 504 * 2 * 2);
 	dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n",
 			__func__, *nbuffers, sizes[0]);
 	return 0;
 }
 
-static int msi3101_buf_prepare(struct vb2_buffer *vb)
-{
-	struct msi3101_state *s = vb2_get_drv_priv(vb->vb2_queue);
-
-	/* Don't allow queing new buffers after device disconnection */
-	if (!s->udev)
-		return -ENODEV;
-
-	return 0;
-}
-
 static void msi3101_buf_queue(struct vb2_buffer *vb)
 {
 	struct msi3101_state *s = vb2_get_drv_priv(vb->vb2_queue);
@@ -1162,7 +853,7 @@ static void msi3101_buf_queue(struct vb2_buffer *vb)
 	unsigned long flags = 0;
 
 	/* Check the device has not disconnected between prep and queuing */
-	if (!s->udev) {
+	if (unlikely(!s->udev)) {
 		vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
 		return;
 	}
@@ -1209,41 +900,63 @@ static int msi3101_ctrl_msg(struct msi3101_state *s, u8 cmd, u32 data)
 	return ret;
 };
 
-static int msi3101_tuner_write(struct msi3101_state *s, u32 data)
-{
-	return msi3101_ctrl_msg(s, CMD_WREG, data << 8 | 0x09);
-};
-
 #define F_REF 24000000
 #define DIV_R_IN 2
 static int msi3101_set_usb_adc(struct msi3101_state *s)
 {
 	int ret, div_n, div_m, div_r_out, f_sr, f_vco, fract;
 	u32 reg3, reg4, reg7;
+	struct v4l2_ctrl *bandwidth_auto;
+	struct v4l2_ctrl *bandwidth;
 
-	f_sr = s->ctrl_sampling_rate->val64;
+	f_sr = s->f_adc;
+
+	/* set tuner, subdev, filters according to sampling rate */
+	bandwidth_auto = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO);
+	bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
+	if (v4l2_ctrl_g_ctrl(bandwidth_auto)) {
+		bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
+		v4l2_ctrl_s_ctrl(bandwidth, s->f_adc);
+	}
 
 	/* select stream format */
-	if (f_sr < 6000000) {
-		s->convert_stream = msi3101_convert_stream_252;
+	switch (s->pixelformat) {
+	case V4L2_SDR_FMT_CU8:
+		s->convert_stream = msi3101_convert_stream_504_u8;
+		reg7 = 0x000c9407;
+		break;
+	case  V4L2_SDR_FMT_CU16LE:
+		s->convert_stream = msi3101_convert_stream_252_u16;
 		reg7 = 0x00009407;
-	} else if (f_sr < 8000000) {
-		s->convert_stream = msi3101_convert_stream_336;
-		reg7 = 0x00008507;
-	} else if (f_sr < 9000000) {
+		break;
+	case V4L2_PIX_FMT_SDR_S8:
+		s->convert_stream = msi3101_convert_stream_504;
+		reg7 = 0x000c9407;
+		break;
+	case V4L2_PIX_FMT_SDR_MSI2500_384:
 		s->convert_stream = msi3101_convert_stream_384;
 		reg7 = 0x0000a507;
-	} else {
-		s->convert_stream = msi3101_convert_stream_504;
+		break;
+	case V4L2_PIX_FMT_SDR_S12:
+		s->convert_stream = msi3101_convert_stream_336;
+		reg7 = 0x00008507;
+		break;
+	case V4L2_PIX_FMT_SDR_S14:
+		s->convert_stream = msi3101_convert_stream_252;
+		reg7 = 0x00009407;
+		break;
+	default:
+		s->convert_stream = msi3101_convert_stream_504_u8;
 		reg7 = 0x000c9407;
+		break;
 	}
 
 	/*
 	 * Synthesizer config is just a educated guess...
 	 *
 	 * [7:0]   0x03, register address
-	 * [8]     1, always
-	 * [9]     ?
+	 * [8]     1, power control
+	 * [9]     ?, power control
 	 * [12:10] output divider
 	 * [13]    0 ?
 	 * [14]    0 ?
@@ -1334,224 +1047,6 @@ err:
 	return ret;
 };
 
-static int msi3101_set_tuner(struct msi3101_state *s)
-{
-	int ret, i, len;
-	unsigned int n, m, thresh, frac, vco_step, tmp, f_if1;
-	u32 reg;
-	u64 f_vco, tmp64;
-	u8 mode, filter_mode, lo_div;
-	const struct msi3101_gain *gain_lut;
-	static const struct {
-		u32 rf;
-		u8 mode;
-		u8 lo_div;
-	} band_lut[] = {
-		{ 50000000, 0xe1, 16}, /* AM_MODE2, antenna 2 */
-		{108000000, 0x42, 32}, /* VHF_MODE */
-		{330000000, 0x44, 16}, /* B3_MODE */
-		{960000000, 0x48,  4}, /* B45_MODE */
-		{      ~0U, 0x50,  2}, /* BL_MODE */
-	};
-	static const struct {
-		u32 freq;
-		u8 filter_mode;
-	} if_freq_lut[] = {
-		{      0, 0x03}, /* Zero IF */
-		{ 450000, 0x02}, /* 450 kHz IF */
-		{1620000, 0x01}, /* 1.62 MHz IF */
-		{2048000, 0x00}, /* 2.048 MHz IF */
-	};
-	static const struct {
-		u32 freq;
-		u8 val;
-	} bandwidth_lut[] = {
-		{ 200000, 0x00}, /* 200 kHz */
-		{ 300000, 0x01}, /* 300 kHz */
-		{ 600000, 0x02}, /* 600 kHz */
-		{1536000, 0x03}, /* 1.536 MHz */
-		{5000000, 0x04}, /* 5 MHz */
-		{6000000, 0x05}, /* 6 MHz */
-		{7000000, 0x06}, /* 7 MHz */
-		{8000000, 0x07}, /* 8 MHz */
-	};
-
-	unsigned int f_rf = s->ctrl_tuner_rf->val64;
-
-	/*
-	 * bandwidth (Hz)
-	 * 200000, 300000, 600000, 1536000, 5000000, 6000000, 7000000, 8000000
-	 */
-	unsigned int bandwidth = s->ctrl_tuner_bw->val;
-
-	/*
-	 * intermediate frequency (Hz)
-	 * 0, 450000, 1620000, 2048000
-	 */
-	unsigned int f_if = s->ctrl_tuner_if->val;
-
-	/*
-	 * gain reduction (dB)
-	 * 0 - 102 below 420 MHz
-	 * 0 - 85 above 420 MHz
-	 */
-	int gain = s->ctrl_tuner_gain->val;
-
-	dev_dbg(&s->udev->dev,
-			"%s: f_rf=%d bandwidth=%d f_if=%d gain=%d\n",
-			__func__, f_rf, bandwidth, f_if, gain);
-
-	ret = -EINVAL;
-
-	for (i = 0; i < ARRAY_SIZE(band_lut); i++) {
-		if (f_rf <= band_lut[i].rf) {
-			mode = band_lut[i].mode;
-			lo_div = band_lut[i].lo_div;
-			break;
-		}
-	}
-
-	if (i == ARRAY_SIZE(band_lut))
-		goto err;
-
-	/* AM_MODE is upconverted */
-	if ((mode >> 0) & 0x1)
-		f_if1 =  5 * F_REF;
-	else
-		f_if1 =  0;
-
-	for (i = 0; i < ARRAY_SIZE(if_freq_lut); i++) {
-		if (f_if == if_freq_lut[i].freq) {
-			filter_mode = if_freq_lut[i].filter_mode;
-			break;
-		}
-	}
-
-	if (i == ARRAY_SIZE(if_freq_lut))
-		goto err;
-
-	for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) {
-		if (bandwidth == bandwidth_lut[i].freq) {
-			bandwidth = bandwidth_lut[i].val;
-			break;
-		}
-	}
-
-	if (i == ARRAY_SIZE(bandwidth_lut))
-		goto err;
-
-#define F_OUT_STEP 1
-#define R_REF 4
-	f_vco = (f_rf + f_if + f_if1) * lo_div;
-
-	tmp64 = f_vco;
-	m = do_div(tmp64, F_REF * R_REF);
-	n = (unsigned int) tmp64;
-
-	vco_step = F_OUT_STEP * lo_div;
-	thresh = (F_REF * R_REF) / vco_step;
-	frac = 1ul * thresh * m / (F_REF * R_REF);
-
-	/* Find out greatest common divisor and divide to smaller. */
-	tmp = gcd(thresh, frac);
-	thresh /= tmp;
-	frac /= tmp;
-
-	/* Force divide to reg max. Resolution will be reduced. */
-	tmp = DIV_ROUND_UP(thresh, 4095);
-	thresh = DIV_ROUND_CLOSEST(thresh, tmp);
-	frac = DIV_ROUND_CLOSEST(frac, tmp);
-
-	/* calc real RF set */
-	tmp = 1ul * F_REF * R_REF * n;
-	tmp += 1ul * F_REF * R_REF * frac / thresh;
-	tmp /= lo_div;
-
-	dev_dbg(&s->udev->dev,
-			"%s: rf=%u:%u n=%d thresh=%d frac=%d\n",
-				__func__, f_rf, tmp, n, thresh, frac);
-
-	ret = msi3101_tuner_write(s, 0x00000e);
-	if (ret)
-		goto err;
-
-	ret = msi3101_tuner_write(s, 0x000003);
-	if (ret)
-		goto err;
-
-	reg = 0 << 0;
-	reg |= mode << 4;
-	reg |= filter_mode << 12;
-	reg |= bandwidth << 14;
-	reg |= 0x02 << 17;
-	reg |= 0x00 << 20;
-	ret = msi3101_tuner_write(s, reg);
-	if (ret)
-		goto err;
-
-	reg = 5 << 0;
-	reg |= thresh << 4;
-	reg |= 1 << 19;
-	reg |= 1 << 21;
-	ret = msi3101_tuner_write(s, reg);
-	if (ret)
-		goto err;
-
-	reg = 2 << 0;
-	reg |= frac << 4;
-	reg |= n << 16;
-	ret = msi3101_tuner_write(s, reg);
-	if (ret)
-		goto err;
-
-	if (f_rf < 120000000) {
-		gain_lut = msi3101_gain_lut_120;
-		len = ARRAY_SIZE(msi3101_gain_lut_120);
-	} else if (f_rf < 245000000) {
-		gain_lut = msi3101_gain_lut_245;
-		len = ARRAY_SIZE(msi3101_gain_lut_120);
-	} else {
-		gain_lut = msi3101_gain_lut_1000;
-		len = ARRAY_SIZE(msi3101_gain_lut_1000);
-	}
-
-	for (i = 0; i < len; i++) {
-		if (gain_lut[i].tot >= gain)
-			break;
-	}
-
-	if (i == len)
-		goto err;
-
-	dev_dbg(&s->udev->dev,
-			"%s: gain tot=%d baseband=%d lna=%d mixer=%d\n",
-			__func__, gain_lut[i].tot, gain_lut[i].baseband,
-			gain_lut[i].lna, gain_lut[i].mixer);
-
-	reg = 1 << 0;
-	reg |= gain_lut[i].baseband << 4;
-	reg |= 0 << 10;
-	reg |= gain_lut[i].mixer << 12;
-	reg |= gain_lut[i].lna << 13;
-	reg |= 4 << 14;
-	reg |= 0 << 17;
-	ret = msi3101_tuner_write(s, reg);
-	if (ret)
-		goto err;
-
-	reg = 6 << 0;
-	reg |= 63 << 4;
-	reg |= 4095 << 10;
-	ret = msi3101_tuner_write(s, reg);
-	if (ret)
-		goto err;
-
-	return 0;
-err:
-	dev_dbg(&s->udev->dev, "%s: failed %d\n", __func__, ret);
-	return ret;
-};
-
 static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count)
 {
 	struct msi3101_state *s = vb2_get_drv_priv(vq);
@@ -1564,6 +1059,9 @@ static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count)
 	if (mutex_lock_interruptible(&s->v4l2_lock))
 		return -ERESTARTSYS;
 
+	/* wake-up tuner */
+	v4l2_subdev_call(s->v4l2_subdev, core, s_power, 1);
+
 	ret = msi3101_set_usb_adc(s);
 
 	ret = msi3101_isoc_init(s);
@@ -1594,6 +1092,12 @@ static int msi3101_stop_streaming(struct vb2_queue *vq)
 	msleep(20);
 	msi3101_ctrl_msg(s, CMD_STOP_STREAMING, 0);
 
+	/* sleep USB IF / ADC */
+	msi3101_ctrl_msg(s, CMD_WREG, 0x01000003);
+
+	/* sleep tuner */
+	v4l2_subdev_call(s->v4l2_subdev, core, s_power, 0);
+
 	mutex_unlock(&s->v4l2_lock);
 
 	return 0;
@@ -1601,7 +1105,6 @@ static int msi3101_stop_streaming(struct vb2_queue *vq)
 
 static struct vb2_ops msi3101_vb2_ops = {
 	.queue_setup            = msi3101_queue_setup,
-	.buf_prepare            = msi3101_buf_prepare,
 	.buf_queue              = msi3101_buf_queue,
 	.start_streaming        = msi3101_start_streaming,
 	.stop_streaming         = msi3101_stop_streaming,
@@ -1609,66 +1112,195 @@ static struct vb2_ops msi3101_vb2_ops = {
 	.wait_finish            = vb2_ops_wait_finish,
 };
 
-static int msi3101_enum_input(struct file *file, void *fh, struct v4l2_input *i)
+static int msi3101_enum_fmt_sdr_cap(struct file *file, void *priv,
+		struct v4l2_fmtdesc *f)
 {
-	if (i->index != 0)
+	struct msi3101_state *s = video_drvdata(file);
+	dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, f->index);
+
+	if (f->index >= NUM_FORMATS)
 		return -EINVAL;
 
-	strlcpy(i->name, "SDR data", sizeof(i->name));
-	i->type = V4L2_INPUT_TYPE_CAMERA;
+	strlcpy(f->description, formats[f->index].name, sizeof(f->description));
+	f->pixelformat = formats[f->index].pixelformat;
+
+	return 0;
+}
+
+static int msi3101_g_fmt_sdr_cap(struct file *file, void *priv,
+		struct v4l2_format *f)
+{
+	struct msi3101_state *s = video_drvdata(file);
+	dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
+			(char *)&s->pixelformat);
+
+	memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
+	f->fmt.sdr.pixelformat = s->pixelformat;
 
 	return 0;
 }
 
-static int msi3101_g_input(struct file *file, void *fh, unsigned int *i)
+static int msi3101_s_fmt_sdr_cap(struct file *file, void *priv,
+		struct v4l2_format *f)
 {
-	*i = 0;
+	struct msi3101_state *s = video_drvdata(file);
+	struct vb2_queue *q = &s->vb_queue;
+	int i;
+	dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
+			(char *)&f->fmt.sdr.pixelformat);
+
+	if (vb2_is_busy(q))
+		return -EBUSY;
+
+	memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
+	for (i = 0; i < NUM_FORMATS; i++) {
+		if (formats[i].pixelformat == f->fmt.sdr.pixelformat) {
+			s->pixelformat = f->fmt.sdr.pixelformat;
+			return 0;
+		}
+	}
+
+	f->fmt.sdr.pixelformat = formats[0].pixelformat;
+	s->pixelformat = formats[0].pixelformat;
 
 	return 0;
 }
 
-static int msi3101_s_input(struct file *file, void *fh, unsigned int i)
+static int msi3101_try_fmt_sdr_cap(struct file *file, void *priv,
+		struct v4l2_format *f)
 {
-	return i ? -EINVAL : 0;
+	struct msi3101_state *s = video_drvdata(file);
+	int i;
+	dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
+			(char *)&f->fmt.sdr.pixelformat);
+
+	memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
+	for (i = 0; i < NUM_FORMATS; i++) {
+		if (formats[i].pixelformat == f->fmt.sdr.pixelformat)
+			return 0;
+	}
+
+	f->fmt.sdr.pixelformat = formats[0].pixelformat;
+
+	return 0;
 }
 
-static int vidioc_s_tuner(struct file *file, void *priv,
+static int msi3101_s_tuner(struct file *file, void *priv,
 		const struct v4l2_tuner *v)
 {
 	struct msi3101_state *s = video_drvdata(file);
-	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+	int ret;
+	dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index);
 
-	return 0;
+	if (v->index == 0)
+		ret = 0;
+	else if (v->index == 1)
+		ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_tuner, v);
+	else
+		ret = -EINVAL;
+
+	return ret;
 }
 
-static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
+static int msi3101_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
 {
 	struct msi3101_state *s = video_drvdata(file);
-	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+	int ret;
+	dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index);
+
+	if (v->index == 0) {
+		strlcpy(v->name, "Mirics MSi2500", sizeof(v->name));
+		v->type = V4L2_TUNER_ADC;
+		v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
+		v->rangelow =   1200000;
+		v->rangehigh = 15000000;
+		ret = 0;
+	} else if (v->index == 1) {
+		ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_tuner, v);
+	} else {
+		ret = -EINVAL;
+	}
 
-	strcpy(v->name, "SDR RX");
-	v->capability = V4L2_TUNER_CAP_LOW;
+	return ret;
+}
 
-	return 0;
+static int msi3101_g_frequency(struct file *file, void *priv,
+		struct v4l2_frequency *f)
+{
+	struct msi3101_state *s = video_drvdata(file);
+	int ret  = 0;
+	dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d\n",
+			__func__, f->tuner, f->type);
+
+	if (f->tuner == 0) {
+		f->frequency = s->f_adc;
+		ret = 0;
+	} else if (f->tuner == 1) {
+		f->type = V4L2_TUNER_RF;
+		ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_frequency, f);
+	} else {
+		ret = -EINVAL;
+	}
+
+	return ret;
 }
 
-static int vidioc_s_frequency(struct file *file, void *priv,
+static int msi3101_s_frequency(struct file *file, void *priv,
 		const struct v4l2_frequency *f)
 {
 	struct msi3101_state *s = video_drvdata(file);
-	dev_dbg(&s->udev->dev, "%s: frequency=%lu Hz (%u)\n",
-			__func__, f->frequency * 625UL / 10UL, f->frequency);
+	int ret;
+	dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d frequency=%u\n",
+			__func__, f->tuner, f->type, f->frequency);
+
+	if (f->tuner == 0) {
+		s->f_adc = clamp_t(unsigned int, f->frequency,
+				bands[0].rangelow,
+				bands[0].rangehigh);
+		dev_dbg(&s->udev->dev, "%s: ADC frequency=%u Hz\n",
+				__func__, s->f_adc);
+		ret = msi3101_set_usb_adc(s);
+	} else if (f->tuner == 1) {
+		ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_frequency, f);
+	} else {
+		ret = -EINVAL;
+	}
 
-	return v4l2_ctrl_s_ctrl_int64(s->ctrl_tuner_rf,
-			f->frequency * 625UL / 10UL);
+	return ret;
+}
+
+static int msi3101_enum_freq_bands(struct file *file, void *priv,
+		struct v4l2_frequency_band *band)
+{
+	struct msi3101_state *s = video_drvdata(file);
+	int ret;
+	dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d index=%d\n",
+			__func__, band->tuner, band->type, band->index);
+
+	if (band->tuner == 0) {
+		if (band->index >= ARRAY_SIZE(bands)) {
+			ret = -EINVAL;
+		} else {
+			*band = bands[band->index];
+			ret = 0;
+		}
+	} else if (band->tuner == 1) {
+		ret = v4l2_subdev_call(s->v4l2_subdev, tuner,
+				enum_freq_bands, band);
+	} else {
+		ret = -EINVAL;
+	}
+
+	return ret;
 }
 
 static const struct v4l2_ioctl_ops msi3101_ioctl_ops = {
 	.vidioc_querycap          = msi3101_querycap,
 
-	.vidioc_enum_input        = msi3101_enum_input,
-	.vidioc_g_input           = msi3101_g_input,
-	.vidioc_s_input           = msi3101_s_input,
+	.vidioc_enum_fmt_sdr_cap  = msi3101_enum_fmt_sdr_cap,
+	.vidioc_g_fmt_sdr_cap     = msi3101_g_fmt_sdr_cap,
+	.vidioc_s_fmt_sdr_cap     = msi3101_s_fmt_sdr_cap,
+	.vidioc_try_fmt_sdr_cap   = msi3101_try_fmt_sdr_cap,
 
 	.vidioc_reqbufs           = vb2_ioctl_reqbufs,
 	.vidioc_create_bufs       = vb2_ioctl_create_bufs,
@@ -1680,9 +1312,12 @@ static const struct v4l2_ioctl_ops msi3101_ioctl_ops = {
 	.vidioc_streamon          = vb2_ioctl_streamon,
 	.vidioc_streamoff         = vb2_ioctl_streamoff,
 
-	.vidioc_g_tuner           = vidioc_g_tuner,
-	.vidioc_s_tuner           = vidioc_s_tuner,
-	.vidioc_s_frequency       = vidioc_s_frequency,
+	.vidioc_g_tuner           = msi3101_g_tuner,
+	.vidioc_s_tuner           = msi3101_s_tuner,
+
+	.vidioc_g_frequency       = msi3101_g_frequency,
+	.vidioc_s_frequency       = msi3101_s_frequency,
+	.vidioc_enum_freq_bands   = msi3101_enum_freq_bands,
 
 	.vidioc_subscribe_event   = v4l2_ctrl_subscribe_event,
 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
@@ -1706,129 +1341,52 @@ static struct video_device msi3101_template = {
 	.ioctl_ops                = &msi3101_ioctl_ops,
 };
 
-static int msi3101_s_ctrl(struct v4l2_ctrl *ctrl)
-{
-	struct msi3101_state *s =
-			container_of(ctrl->handler, struct msi3101_state,
-					ctrl_handler);
-	int ret;
-	dev_dbg(&s->udev->dev,
-			"%s: id=%d name=%s val=%d min=%d max=%d step=%d\n",
-			__func__, ctrl->id, ctrl->name, ctrl->val,
-			ctrl->minimum, ctrl->maximum, ctrl->step);
-
-	switch (ctrl->id) {
-	case MSI3101_CID_SAMPLING_MODE:
-	case MSI3101_CID_SAMPLING_RATE:
-	case MSI3101_CID_SAMPLING_RESOLUTION:
-		ret = 0;
-		break;
-	case MSI3101_CID_TUNER_RF:
-	case MSI3101_CID_TUNER_BW:
-	case MSI3101_CID_TUNER_IF:
-	case MSI3101_CID_TUNER_GAIN:
-		ret = msi3101_set_tuner(s);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static const struct v4l2_ctrl_ops msi3101_ctrl_ops = {
-	.s_ctrl = msi3101_s_ctrl,
-};
-
 static void msi3101_video_release(struct v4l2_device *v)
 {
 	struct msi3101_state *s =
 			container_of(v, struct msi3101_state, v4l2_dev);
 
-	v4l2_ctrl_handler_free(&s->ctrl_handler);
+	v4l2_ctrl_handler_free(&s->hdl);
 	v4l2_device_unregister(&s->v4l2_dev);
 	kfree(s);
 }
 
+static int msi3101_transfer_one_message(struct spi_master *master,
+		struct spi_message *m)
+{
+	struct msi3101_state *s = spi_master_get_devdata(master);
+	struct spi_transfer *t;
+	int ret = 0;
+	u32 data;
+
+	list_for_each_entry(t, &m->transfers, transfer_list) {
+		dev_dbg(&s->udev->dev, "%s: msg=%*ph\n",
+				__func__, t->len, t->tx_buf);
+		data = 0x09; /* reg 9 is SPI adapter */
+		data |= ((u8 *)t->tx_buf)[0] << 8;
+		data |= ((u8 *)t->tx_buf)[1] << 16;
+		data |= ((u8 *)t->tx_buf)[2] << 24;
+		ret = msi3101_ctrl_msg(s, CMD_WREG, data);
+	}
+
+	m->status = ret;
+	spi_finalize_current_message(master);
+	return ret;
+}
+
 static int msi3101_probe(struct usb_interface *intf,
 		const struct usb_device_id *id)
 {
 	struct usb_device *udev = interface_to_usbdev(intf);
 	struct msi3101_state *s = NULL;
+	struct v4l2_subdev *sd;
+	struct spi_master *master;
 	int ret;
-	static const char * const ctrl_sampling_mode_qmenu_strings[] = {
-		"Quadrature Sampling",
-		NULL,
-	};
-	static const struct v4l2_ctrl_config ctrl_sampling_mode = {
-		.ops	= &msi3101_ctrl_ops,
-		.id	= MSI3101_CID_SAMPLING_MODE,
-		.type   = V4L2_CTRL_TYPE_MENU,
-		.flags  = V4L2_CTRL_FLAG_INACTIVE,
-		.name	= "Sampling Mode",
-		.qmenu  = ctrl_sampling_mode_qmenu_strings,
-	};
-	static const struct v4l2_ctrl_config ctrl_sampling_rate = {
-		.ops	= &msi3101_ctrl_ops,
-		.id	= MSI3101_CID_SAMPLING_RATE,
-		.type	= V4L2_CTRL_TYPE_INTEGER64,
-		.name	= "Sampling Rate",
-		.min	= 500000,
-		.max	= 12000000,
-		.def    = 2048000,
-		.step	= 1,
-	};
-	static const struct v4l2_ctrl_config ctrl_sampling_resolution = {
-		.ops	= &msi3101_ctrl_ops,
-		.id	= MSI3101_CID_SAMPLING_RESOLUTION,
-		.type	= V4L2_CTRL_TYPE_INTEGER,
-		.flags  = V4L2_CTRL_FLAG_INACTIVE,
-		.name	= "Sampling Resolution",
-		.min	= 10,
-		.max	= 10,
-		.def    = 10,
-		.step	= 1,
-	};
-	static const struct v4l2_ctrl_config ctrl_tuner_rf = {
-		.ops	= &msi3101_ctrl_ops,
-		.id	= MSI3101_CID_TUNER_RF,
-		.type   = V4L2_CTRL_TYPE_INTEGER64,
-		.name	= "Tuner RF",
-		.min	= 40000000,
-		.max	= 2000000000,
-		.def    = 100000000,
-		.step	= 1,
-	};
-	static const struct v4l2_ctrl_config ctrl_tuner_bw = {
-		.ops	= &msi3101_ctrl_ops,
-		.id	= MSI3101_CID_TUNER_BW,
-		.type	= V4L2_CTRL_TYPE_INTEGER,
-		.name	= "Tuner BW",
-		.min	= 200000,
-		.max	= 8000000,
-		.def    = 600000,
-		.step	= 1,
-	};
-	static const struct v4l2_ctrl_config ctrl_tuner_if = {
-		.ops	= &msi3101_ctrl_ops,
-		.id	= MSI3101_CID_TUNER_IF,
-		.type	= V4L2_CTRL_TYPE_INTEGER,
-		.flags  = V4L2_CTRL_FLAG_INACTIVE,
-		.name	= "Tuner IF",
-		.min	= 0,
-		.max	= 2048000,
-		.def    = 0,
-		.step	= 1,
-	};
-	static const struct v4l2_ctrl_config ctrl_tuner_gain = {
-		.ops	= &msi3101_ctrl_ops,
-		.id	= MSI3101_CID_TUNER_GAIN,
-		.type	= V4L2_CTRL_TYPE_INTEGER,
-		.name	= "Tuner Gain",
-		.min	= 0,
-		.max	= 102,
-		.def    = 0,
-		.step	= 1,
+	static struct spi_board_info board_info = {
+		.modalias		= "msi001",
+		.bus_num		= 0,
+		.chip_select		= 0,
+		.max_speed_hz		= 12000000,
 	};
 
 	s = kzalloc(sizeof(struct msi3101_state), GFP_KERNEL);
@@ -1841,19 +1399,20 @@ static int msi3101_probe(struct usb_interface *intf,
 	mutex_init(&s->vb_queue_lock);
 	spin_lock_init(&s->queued_bufs_lock);
 	INIT_LIST_HEAD(&s->queued_bufs);
-
 	s->udev = udev;
+	s->f_adc = bands[0].rangelow;
+	s->pixelformat = V4L2_SDR_FMT_CU8;
 
 	/* Init videobuf2 queue structure */
-	s->vb_queue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
 	s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
 	s->vb_queue.drv_priv = s;
 	s->vb_queue.buf_struct_size = sizeof(struct msi3101_frame_buf);
 	s->vb_queue.ops = &msi3101_vb2_ops;
 	s->vb_queue.mem_ops = &vb2_vmalloc_memops;
-	s->vb_queue.timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 	ret = vb2_queue_init(&s->vb_queue);
-	if (ret < 0) {
+	if (ret) {
 		dev_err(&s->udev->dev, "Could not initialize vb2 queue\n");
 		goto err_free_mem;
 	}
@@ -1865,36 +1424,59 @@ static int msi3101_probe(struct usb_interface *intf,
 	set_bit(V4L2_FL_USE_FH_PRIO, &s->vdev.flags);
 	video_set_drvdata(&s->vdev, s);
 
-	/* Register controls */
-	v4l2_ctrl_handler_init(&s->ctrl_handler, 7);
-	v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_sampling_mode, NULL);
-	s->ctrl_sampling_rate = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_sampling_rate, NULL);
-	v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_sampling_resolution, NULL);
-	s->ctrl_tuner_rf = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_tuner_rf, NULL);
-	s->ctrl_tuner_bw = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_tuner_bw, NULL);
-	s->ctrl_tuner_if = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_tuner_if, NULL);
-	s->ctrl_tuner_gain = v4l2_ctrl_new_custom(&s->ctrl_handler, &ctrl_tuner_gain, NULL);
-	if (s->ctrl_handler.error) {
-		ret = s->ctrl_handler.error;
-		dev_err(&s->udev->dev, "Could not initialize controls\n");
-		goto err_free_controls;
-	}
-
 	/* Register the v4l2_device structure */
 	s->v4l2_dev.release = msi3101_video_release;
 	ret = v4l2_device_register(&intf->dev, &s->v4l2_dev);
 	if (ret) {
 		dev_err(&s->udev->dev,
 				"Failed to register v4l2-device (%d)\n", ret);
+		goto err_free_mem;
+	}
+
+	/* SPI master adapter */
+	master = spi_alloc_master(&s->udev->dev, 0);
+	if (master == NULL) {
+		ret = -ENOMEM;
+		goto err_unregister_v4l2_dev;
+	}
+
+	s->master = master;
+	master->bus_num = 0;
+	master->num_chipselect = 1;
+	master->transfer_one_message = msi3101_transfer_one_message;
+	spi_master_set_devdata(master, s);
+	ret = spi_register_master(master);
+	if (ret) {
+		spi_master_put(master);
+		goto err_unregister_v4l2_dev;
+	}
+
+	/* load v4l2 subdevice */
+	sd = v4l2_spi_new_subdev(&s->v4l2_dev, master, &board_info);
+	s->v4l2_subdev = sd;
+	if (sd == NULL) {
+		dev_err(&s->udev->dev, "cannot get v4l2 subdevice\n");
+		ret = -ENODEV;
+		goto err_unregister_master;
+	}
+
+	/* Register controls */
+	v4l2_ctrl_handler_init(&s->hdl, 0);
+	if (s->hdl.error) {
+		ret = s->hdl.error;
+		dev_err(&s->udev->dev, "Could not initialize controls\n");
 		goto err_free_controls;
 	}
 
-	s->v4l2_dev.ctrl_handler = &s->ctrl_handler;
+	/* currently all controls are from subdev */
+	v4l2_ctrl_add_handler(&s->hdl, sd->ctrl_handler, NULL);
+
+	s->v4l2_dev.ctrl_handler = &s->hdl;
 	s->vdev.v4l2_dev = &s->v4l2_dev;
 	s->vdev.lock = &s->v4l2_lock;
 
-	ret = video_register_device(&s->vdev, VFL_TYPE_GRABBER, -1);
-	if (ret < 0) {
+	ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1);
+	if (ret) {
 		dev_err(&s->udev->dev,
 				"Failed to register as video device (%d)\n",
 				ret);
@@ -1905,10 +1487,12 @@ static int msi3101_probe(struct usb_interface *intf,
 
 	return 0;
 
+err_free_controls:
+	v4l2_ctrl_handler_free(&s->hdl);
+err_unregister_master:
+	spi_unregister_master(s->master);
 err_unregister_v4l2_dev:
 	v4l2_device_unregister(&s->v4l2_dev);
-err_free_controls:
-	v4l2_ctrl_handler_free(&s->ctrl_handler);
 err_free_mem:
 	kfree(s);
 	return ret;
diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c
index 8c7f35029cd..ded31ea6bd3 100644
--- a/drivers/staging/media/omap4iss/iss_video.c
+++ b/drivers/staging/media/omap4iss/iss_video.c
@@ -1074,7 +1074,7 @@ static int iss_video_open(struct file *file)
 	q->ops = &iss_video_vb2ops;
 	q->mem_ops = &vb2_dma_contig_memops;
 	q->buf_struct_size = sizeof(struct iss_buffer);
-	q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 
 	ret = vb2_queue_init(q);
 	if (ret) {
diff --git a/drivers/staging/media/rtl2832u_sdr/Kconfig b/drivers/staging/media/rtl2832u_sdr/Kconfig
new file mode 100644
index 00000000000..3ede5fe8f0a
--- /dev/null
+++ b/drivers/staging/media/rtl2832u_sdr/Kconfig
@@ -0,0 +1,7 @@
+config DVB_RTL2832_SDR
+	tristate "Realtek RTL2832 SDR"
+	depends on USB && DVB_CORE && I2C && VIDEO_V4L2 && DVB_USB_RTL28XXU
+	select DVB_RTL2832
+	select VIDEOBUF2_VMALLOC
+	default m if !MEDIA_SUBDRV_AUTOSELECT
+
diff --git a/drivers/staging/media/rtl2832u_sdr/Makefile b/drivers/staging/media/rtl2832u_sdr/Makefile
new file mode 100644
index 00000000000..7e00a0df463
--- /dev/null
+++ b/drivers/staging/media/rtl2832u_sdr/Makefile
@@ -0,0 +1,6 @@
+obj-$(CONFIG_DVB_RTL2832_SDR) += rtl2832_sdr.o
+
+ccflags-y += -Idrivers/media/dvb-core
+ccflags-y += -Idrivers/media/dvb-frontends
+ccflags-y += -Idrivers/media/tuners
+ccflags-y += -Idrivers/media/usb/dvb-usb-v2
diff --git a/drivers/staging/media/rtl2832u_sdr/rtl2832_sdr.c b/drivers/staging/media/rtl2832u_sdr/rtl2832_sdr.c
new file mode 100644
index 00000000000..104ee8af79a
--- /dev/null
+++ b/drivers/staging/media/rtl2832u_sdr/rtl2832_sdr.c
@@ -0,0 +1,1500 @@
+/*
+ * Realtek RTL2832U SDR driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    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.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * GNU Radio plugin "gr-kernel" for device usage will be on:
+ * http://git.linuxtv.org/anttip/gr-kernel.git
+ *
+ */
+
+#include "dvb_frontend.h"
+#include "rtl2832_sdr.h"
+#include "dvb_usb.h"
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/videobuf2-vmalloc.h>
+
+#include <linux/jiffies.h>
+#include <linux/math64.h>
+
+#define MAX_BULK_BUFS            (10)
+#define BULK_BUFFER_SIZE         (128 * 512)
+
+static const struct v4l2_frequency_band bands_adc[] = {
+	{
+		.tuner = 0,
+		.type = V4L2_TUNER_ADC,
+		.index = 0,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =  300000,
+		.rangehigh  =  300000,
+	},
+	{
+		.tuner = 0,
+		.type = V4L2_TUNER_ADC,
+		.index = 1,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =  900001,
+		.rangehigh  = 2800000,
+	},
+	{
+		.tuner = 0,
+		.type = V4L2_TUNER_ADC,
+		.index = 2,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   = 3200000,
+		.rangehigh  = 3200000,
+	},
+};
+
+static const struct v4l2_frequency_band bands_fm[] = {
+	{
+		.tuner = 1,
+		.type = V4L2_TUNER_RF,
+		.index = 0,
+		.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
+		.rangelow   =    50000000,
+		.rangehigh  =  2000000000,
+	},
+};
+
+/* stream formats */
+struct rtl2832_sdr_format {
+	char	*name;
+	u32	pixelformat;
+};
+
+static struct rtl2832_sdr_format formats[] = {
+	{
+		.name		= "IQ U8",
+		.pixelformat	=  V4L2_SDR_FMT_CU8,
+	}, {
+		.name		= "IQ U16LE (emulated)",
+		.pixelformat	= V4L2_SDR_FMT_CU16LE,
+	},
+};
+
+static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats);
+
+/* intermediate buffers with raw data from the USB device */
+struct rtl2832_sdr_frame_buf {
+	struct vb2_buffer vb;   /* common v4l buffer stuff -- must be first */
+	struct list_head list;
+};
+
+struct rtl2832_sdr_state {
+#define POWER_ON           (1 << 1)
+#define URB_BUF            (1 << 2)
+	unsigned long flags;
+
+	const struct rtl2832_config *cfg;
+	struct dvb_frontend *fe;
+	struct dvb_usb_device *d;
+	struct i2c_adapter *i2c;
+	u8 bank;
+
+	struct video_device vdev;
+	struct v4l2_device v4l2_dev;
+
+	/* videobuf2 queue and queued buffers list */
+	struct vb2_queue vb_queue;
+	struct list_head queued_bufs;
+	spinlock_t queued_bufs_lock; /* Protects queued_bufs */
+	unsigned sequence;	     /* buffer sequence counter */
+
+	/* Note if taking both locks v4l2_lock must always be locked first! */
+	struct mutex v4l2_lock;      /* Protects everything else */
+	struct mutex vb_queue_lock;  /* Protects vb_queue and capt_file */
+
+	/* Pointer to our usb_device, will be NULL after unplug */
+	struct usb_device *udev; /* Both mutexes most be hold when setting! */
+
+	unsigned int vb_full; /* vb is full and packets dropped */
+
+	struct urb     *urb_list[MAX_BULK_BUFS];
+	int            buf_num;
+	unsigned long  buf_size;
+	u8             *buf_list[MAX_BULK_BUFS];
+	dma_addr_t     dma_addr[MAX_BULK_BUFS];
+	int urbs_initialized;
+	int urbs_submitted;
+
+	unsigned int f_adc, f_tuner;
+	u32 pixelformat;
+
+	/* Controls */
+	struct v4l2_ctrl_handler hdl;
+	struct v4l2_ctrl *bandwidth_auto;
+	struct v4l2_ctrl *bandwidth;
+
+	/* for sample rate calc */
+	unsigned int sample;
+	unsigned int sample_measured;
+	unsigned long jiffies_next;
+};
+
+/* write multiple hardware registers */
+static int rtl2832_sdr_wr(struct rtl2832_sdr_state *s, u8 reg, const u8 *val,
+		int len)
+{
+	int ret;
+#define MAX_WR_LEN 24
+#define MAX_WR_XFER_LEN (MAX_WR_LEN + 1)
+	u8 buf[MAX_WR_XFER_LEN];
+	struct i2c_msg msg[1] = {
+		{
+			.addr = s->cfg->i2c_addr,
+			.flags = 0,
+			.len = 1 + len,
+			.buf = buf,
+		}
+	};
+
+	if (WARN_ON(len > MAX_WR_LEN))
+		return -EINVAL;
+
+	buf[0] = reg;
+	memcpy(&buf[1], val, len);
+
+	ret = i2c_transfer(s->i2c, msg, 1);
+	if (ret == 1) {
+		ret = 0;
+	} else {
+		dev_err(&s->i2c->dev,
+			"%s: I2C wr failed=%d reg=%02x len=%d\n",
+			KBUILD_MODNAME, ret, reg, len);
+		ret = -EREMOTEIO;
+	}
+	return ret;
+}
+
+/* read multiple hardware registers */
+static int rtl2832_sdr_rd(struct rtl2832_sdr_state *s, u8 reg, u8 *val, int len)
+{
+	int ret;
+	struct i2c_msg msg[2] = {
+		{
+			.addr = s->cfg->i2c_addr,
+			.flags = 0,
+			.len = 1,
+			.buf = &reg,
+		}, {
+			.addr = s->cfg->i2c_addr,
+			.flags = I2C_M_RD,
+			.len = len,
+			.buf = val,
+		}
+	};
+
+	ret = i2c_transfer(s->i2c, msg, 2);
+	if (ret == 2) {
+		ret = 0;
+	} else {
+		dev_err(&s->i2c->dev,
+				"%s: I2C rd failed=%d reg=%02x len=%d\n",
+				KBUILD_MODNAME, ret, reg, len);
+		ret = -EREMOTEIO;
+	}
+	return ret;
+}
+
+/* write multiple registers */
+static int rtl2832_sdr_wr_regs(struct rtl2832_sdr_state *s, u16 reg,
+		const u8 *val, int len)
+{
+	int ret;
+	u8 reg2 = (reg >> 0) & 0xff;
+	u8 bank = (reg >> 8) & 0xff;
+
+	/* switch bank if needed */
+	if (bank != s->bank) {
+		ret = rtl2832_sdr_wr(s, 0x00, &bank, 1);
+		if (ret)
+			return ret;
+
+		s->bank = bank;
+	}
+
+	return rtl2832_sdr_wr(s, reg2, val, len);
+}
+
+/* read multiple registers */
+static int rtl2832_sdr_rd_regs(struct rtl2832_sdr_state *s, u16 reg, u8 *val,
+		int len)
+{
+	int ret;
+	u8 reg2 = (reg >> 0) & 0xff;
+	u8 bank = (reg >> 8) & 0xff;
+
+	/* switch bank if needed */
+	if (bank != s->bank) {
+		ret = rtl2832_sdr_wr(s, 0x00, &bank, 1);
+		if (ret)
+			return ret;
+
+		s->bank = bank;
+	}
+
+	return rtl2832_sdr_rd(s, reg2, val, len);
+}
+
+/* write single register */
+static int rtl2832_sdr_wr_reg(struct rtl2832_sdr_state *s, u16 reg, u8 val)
+{
+	return rtl2832_sdr_wr_regs(s, reg, &val, 1);
+}
+
+#if 0
+/* read single register */
+static int rtl2832_sdr_rd_reg(struct rtl2832_sdr_state *s, u16 reg, u8 *val)
+{
+	return rtl2832_sdr_rd_regs(s, reg, val, 1);
+}
+#endif
+
+/* write single register with mask */
+static int rtl2832_sdr_wr_reg_mask(struct rtl2832_sdr_state *s, u16 reg,
+		u8 val, u8 mask)
+{
+	int ret;
+	u8 tmp;
+
+	/* no need for read if whole reg is written */
+	if (mask != 0xff) {
+		ret = rtl2832_sdr_rd_regs(s, reg, &tmp, 1);
+		if (ret)
+			return ret;
+
+		val &= mask;
+		tmp &= ~mask;
+		val |= tmp;
+	}
+
+	return rtl2832_sdr_wr_regs(s, reg, &val, 1);
+}
+
+#if 0
+/* read single register with mask */
+static int rtl2832_sdr_rd_reg_mask(struct rtl2832_sdr_state *s, u16 reg,
+		u8 *val, u8 mask)
+{
+	int ret, i;
+	u8 tmp;
+
+	ret = rtl2832_sdr_rd_regs(s, reg, &tmp, 1);
+	if (ret)
+		return ret;
+
+	tmp &= mask;
+
+	/* find position of the first bit */
+	for (i = 0; i < 8; i++) {
+		if ((mask >> i) & 0x01)
+			break;
+	}
+	*val = tmp >> i;
+
+	return 0;
+}
+#endif
+
+/* Private functions */
+static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf(
+		struct rtl2832_sdr_state *s)
+{
+	unsigned long flags = 0;
+	struct rtl2832_sdr_frame_buf *buf = NULL;
+
+	spin_lock_irqsave(&s->queued_bufs_lock, flags);
+	if (list_empty(&s->queued_bufs))
+		goto leave;
+
+	buf = list_entry(s->queued_bufs.next,
+			struct rtl2832_sdr_frame_buf, list);
+	list_del(&buf->list);
+leave:
+	spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
+	return buf;
+}
+
+static unsigned int rtl2832_sdr_convert_stream(struct rtl2832_sdr_state *s,
+		void *dst, const u8 *src, unsigned int src_len)
+{
+	unsigned int dst_len;
+
+	if (s->pixelformat ==  V4L2_SDR_FMT_CU8) {
+		/* native stream, no need to convert */
+		memcpy(dst, src, src_len);
+		dst_len = src_len;
+	} else if (s->pixelformat == V4L2_SDR_FMT_CU16LE) {
+		/* convert u8 to u16 */
+		unsigned int i;
+		u16 *u16dst = dst;
+		for (i = 0; i < src_len; i++)
+			*u16dst++ = (src[i] << 8) | (src[i] >> 0);
+		dst_len = 2 * src_len;
+	} else {
+		dst_len = 0;
+	}
+
+	/* calculate samping rate and output it in 10 seconds intervals */
+	if (unlikely(time_is_before_jiffies(s->jiffies_next))) {
+#define MSECS 10000UL
+		unsigned int samples = s->sample - s->sample_measured;
+		s->jiffies_next = jiffies + msecs_to_jiffies(MSECS);
+		s->sample_measured = s->sample;
+		dev_dbg(&s->udev->dev,
+				"slen=%d samples=%u msecs=%lu sampling rate=%lu\n",
+				src_len, samples, MSECS,
+				samples * 1000UL / MSECS);
+	}
+
+	/* total number of I+Q pairs */
+	s->sample += src_len / 2;
+
+	return dst_len;
+}
+
+/*
+ * This gets called for the bulk stream pipe. This is done in interrupt
+ * time, so it has to be fast, not crash, and not stall. Neat.
+ */
+static void rtl2832_sdr_urb_complete(struct urb *urb)
+{
+	struct rtl2832_sdr_state *s = urb->context;
+	struct rtl2832_sdr_frame_buf *fbuf;
+
+	dev_dbg_ratelimited(&s->udev->dev,
+			"%s: status=%d length=%d/%d errors=%d\n",
+			__func__, urb->status, urb->actual_length,
+			urb->transfer_buffer_length, urb->error_count);
+
+	switch (urb->status) {
+	case 0:             /* success */
+	case -ETIMEDOUT:    /* NAK */
+		break;
+	case -ECONNRESET:   /* kill */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:            /* error */
+		dev_err_ratelimited(&s->udev->dev, "urb failed=%d\n",
+				urb->status);
+		break;
+	}
+
+	if (likely(urb->actual_length > 0)) {
+		void *ptr;
+		unsigned int len;
+		/* get free framebuffer */
+		fbuf = rtl2832_sdr_get_next_fill_buf(s);
+		if (unlikely(fbuf == NULL)) {
+			s->vb_full++;
+			dev_notice_ratelimited(&s->udev->dev,
+					"videobuf is full, %d packets dropped\n",
+					s->vb_full);
+			goto skip;
+		}
+
+		/* fill framebuffer */
+		ptr = vb2_plane_vaddr(&fbuf->vb, 0);
+		len = rtl2832_sdr_convert_stream(s, ptr, urb->transfer_buffer,
+				urb->actual_length);
+		vb2_set_plane_payload(&fbuf->vb, 0, len);
+		v4l2_get_timestamp(&fbuf->vb.v4l2_buf.timestamp);
+		fbuf->vb.v4l2_buf.sequence = s->sequence++;
+		vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE);
+	}
+skip:
+	usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+static int rtl2832_sdr_kill_urbs(struct rtl2832_sdr_state *s)
+{
+	int i;
+
+	for (i = s->urbs_submitted - 1; i >= 0; i--) {
+		dev_dbg(&s->udev->dev, "%s: kill urb=%d\n", __func__, i);
+		/* stop the URB */
+		usb_kill_urb(s->urb_list[i]);
+	}
+	s->urbs_submitted = 0;
+
+	return 0;
+}
+
+static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_state *s)
+{
+	int i, ret;
+
+	for (i = 0; i < s->urbs_initialized; i++) {
+		dev_dbg(&s->udev->dev, "%s: submit urb=%d\n", __func__, i);
+		ret = usb_submit_urb(s->urb_list[i], GFP_ATOMIC);
+		if (ret) {
+			dev_err(&s->udev->dev,
+					"Could not submit urb no. %d - get them all back\n",
+					i);
+			rtl2832_sdr_kill_urbs(s);
+			return ret;
+		}
+		s->urbs_submitted++;
+	}
+
+	return 0;
+}
+
+static int rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_state *s)
+{
+	if (s->flags & USB_STATE_URB_BUF) {
+		while (s->buf_num) {
+			s->buf_num--;
+			dev_dbg(&s->udev->dev, "%s: free buf=%d\n",
+					__func__, s->buf_num);
+			usb_free_coherent(s->udev, s->buf_size,
+					  s->buf_list[s->buf_num],
+					  s->dma_addr[s->buf_num]);
+		}
+	}
+	s->flags &= ~USB_STATE_URB_BUF;
+
+	return 0;
+}
+
+static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_state *s)
+{
+	s->buf_num = 0;
+	s->buf_size = BULK_BUFFER_SIZE;
+
+	dev_dbg(&s->udev->dev,
+			"%s: all in all I will use %u bytes for streaming\n",
+			__func__,  MAX_BULK_BUFS * BULK_BUFFER_SIZE);
+
+	for (s->buf_num = 0; s->buf_num < MAX_BULK_BUFS; s->buf_num++) {
+		s->buf_list[s->buf_num] = usb_alloc_coherent(s->udev,
+				BULK_BUFFER_SIZE, GFP_ATOMIC,
+				&s->dma_addr[s->buf_num]);
+		if (!s->buf_list[s->buf_num]) {
+			dev_dbg(&s->udev->dev, "%s: alloc buf=%d failed\n",
+					__func__, s->buf_num);
+			rtl2832_sdr_free_stream_bufs(s);
+			return -ENOMEM;
+		}
+
+		dev_dbg(&s->udev->dev, "%s: alloc buf=%d %p (dma %llu)\n",
+				__func__, s->buf_num,
+				s->buf_list[s->buf_num],
+				(long long)s->dma_addr[s->buf_num]);
+		s->flags |= USB_STATE_URB_BUF;
+	}
+
+	return 0;
+}
+
+static int rtl2832_sdr_free_urbs(struct rtl2832_sdr_state *s)
+{
+	int i;
+
+	rtl2832_sdr_kill_urbs(s);
+
+	for (i = s->urbs_initialized - 1; i >= 0; i--) {
+		if (s->urb_list[i]) {
+			dev_dbg(&s->udev->dev, "%s: free urb=%d\n",
+					__func__, i);
+			/* free the URBs */
+			usb_free_urb(s->urb_list[i]);
+		}
+	}
+	s->urbs_initialized = 0;
+
+	return 0;
+}
+
+static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_state *s)
+{
+	int i, j;
+
+	/* allocate the URBs */
+	for (i = 0; i < MAX_BULK_BUFS; i++) {
+		dev_dbg(&s->udev->dev, "%s: alloc urb=%d\n", __func__, i);
+		s->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC);
+		if (!s->urb_list[i]) {
+			dev_dbg(&s->udev->dev, "%s: failed\n", __func__);
+			for (j = 0; j < i; j++)
+				usb_free_urb(s->urb_list[j]);
+			return -ENOMEM;
+		}
+		usb_fill_bulk_urb(s->urb_list[i],
+				s->udev,
+				usb_rcvbulkpipe(s->udev, 0x81),
+				s->buf_list[i],
+				BULK_BUFFER_SIZE,
+				rtl2832_sdr_urb_complete, s);
+
+		s->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
+		s->urb_list[i]->transfer_dma = s->dma_addr[i];
+		s->urbs_initialized++;
+	}
+
+	return 0;
+}
+
+/* Must be called with vb_queue_lock hold */
+static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_state *s)
+{
+	unsigned long flags = 0;
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	spin_lock_irqsave(&s->queued_bufs_lock, flags);
+	while (!list_empty(&s->queued_bufs)) {
+		struct rtl2832_sdr_frame_buf *buf;
+		buf = list_entry(s->queued_bufs.next,
+				struct rtl2832_sdr_frame_buf, list);
+		list_del(&buf->list);
+		vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+	}
+	spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
+}
+
+/* The user yanked out the cable... */
+static void rtl2832_sdr_release_sec(struct dvb_frontend *fe)
+{
+	struct rtl2832_sdr_state *s = fe->sec_priv;
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	mutex_lock(&s->vb_queue_lock);
+	mutex_lock(&s->v4l2_lock);
+	/* No need to keep the urbs around after disconnection */
+	s->udev = NULL;
+
+	v4l2_device_disconnect(&s->v4l2_dev);
+	video_unregister_device(&s->vdev);
+	mutex_unlock(&s->v4l2_lock);
+	mutex_unlock(&s->vb_queue_lock);
+
+	v4l2_device_put(&s->v4l2_dev);
+
+	fe->sec_priv = NULL;
+}
+
+static int rtl2832_sdr_querycap(struct file *file, void *fh,
+		struct v4l2_capability *cap)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver));
+	strlcpy(cap->card, s->vdev.name, sizeof(cap->card));
+	usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info));
+	cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING |
+			V4L2_CAP_READWRITE | V4L2_CAP_TUNER;
+	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+	return 0;
+}
+
+/* Videobuf2 operations */
+static int rtl2832_sdr_queue_setup(struct vb2_queue *vq,
+		const struct v4l2_format *fmt, unsigned int *nbuffers,
+		unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[])
+{
+	struct rtl2832_sdr_state *s = vb2_get_drv_priv(vq);
+	dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers);
+
+	/* Need at least 8 buffers */
+	if (vq->num_buffers + *nbuffers < 8)
+		*nbuffers = 8 - vq->num_buffers;
+	*nplanes = 1;
+	/* 2 = max 16-bit sample returned */
+	sizes[0] = PAGE_ALIGN(BULK_BUFFER_SIZE * 2);
+	dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n",
+			__func__, *nbuffers, sizes[0]);
+	return 0;
+}
+
+static int rtl2832_sdr_buf_prepare(struct vb2_buffer *vb)
+{
+	struct rtl2832_sdr_state *s = vb2_get_drv_priv(vb->vb2_queue);
+
+	/* Don't allow queing new buffers after device disconnection */
+	if (!s->udev)
+		return -ENODEV;
+
+	return 0;
+}
+
+static void rtl2832_sdr_buf_queue(struct vb2_buffer *vb)
+{
+	struct rtl2832_sdr_state *s = vb2_get_drv_priv(vb->vb2_queue);
+	struct rtl2832_sdr_frame_buf *buf =
+			container_of(vb, struct rtl2832_sdr_frame_buf, vb);
+	unsigned long flags = 0;
+
+	/* Check the device has not disconnected between prep and queuing */
+	if (!s->udev) {
+		vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+		return;
+	}
+
+	spin_lock_irqsave(&s->queued_bufs_lock, flags);
+	list_add_tail(&buf->list, &s->queued_bufs);
+	spin_unlock_irqrestore(&s->queued_bufs_lock, flags);
+}
+
+static int rtl2832_sdr_set_adc(struct rtl2832_sdr_state *s)
+{
+	struct dvb_frontend *fe = s->fe;
+	int ret;
+	unsigned int f_sr, f_if;
+	u8 buf[4], u8tmp1, u8tmp2;
+	u64 u64tmp;
+	u32 u32tmp;
+	dev_dbg(&s->udev->dev, "%s: f_adc=%u\n", __func__, s->f_adc);
+
+	if (!test_bit(POWER_ON, &s->flags))
+		return 0;
+
+	if (s->f_adc == 0)
+		return 0;
+
+	f_sr = s->f_adc;
+
+	ret = rtl2832_sdr_wr_regs(s, 0x13e, "\x00\x00", 2);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_regs(s, 0x115, "\x00\x00\x00\x00", 4);
+	if (ret)
+		goto err;
+
+	/* get IF from tuner */
+	if (fe->ops.tuner_ops.get_if_frequency)
+		ret = fe->ops.tuner_ops.get_if_frequency(fe, &f_if);
+	else
+		ret = -EINVAL;
+
+	if (ret)
+		goto err;
+
+	/* program IF */
+	u64tmp = f_if % s->cfg->xtal;
+	u64tmp *= 0x400000;
+	u64tmp = div_u64(u64tmp, s->cfg->xtal);
+	u64tmp = -u64tmp;
+	u32tmp = u64tmp & 0x3fffff;
+
+	dev_dbg(&s->udev->dev, "%s: f_if=%u if_ctl=%08x\n",
+			__func__, f_if, u32tmp);
+
+	buf[0] = (u32tmp >> 16) & 0xff;
+	buf[1] = (u32tmp >>  8) & 0xff;
+	buf[2] = (u32tmp >>  0) & 0xff;
+
+	ret = rtl2832_sdr_wr_regs(s, 0x119, buf, 3);
+	if (ret)
+		goto err;
+
+	/* BB / IF mode */
+	/* POR: 0x1b1=0x1f, 0x008=0x0d, 0x006=0x80 */
+	if (f_if) {
+		u8tmp1 = 0x1a; /* disable Zero-IF */
+		u8tmp2 = 0x8d; /* enable ADC I */
+	} else {
+		u8tmp1 = 0x1b; /* enable Zero-IF, DC, IQ */
+		u8tmp2 = 0xcd; /* enable ADC I, ADC Q */
+	}
+
+	ret = rtl2832_sdr_wr_reg(s, 0x1b1, u8tmp1);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_reg(s, 0x008, u8tmp2);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_reg(s, 0x006, 0x80);
+	if (ret)
+		goto err;
+
+	/* program sampling rate (resampling down) */
+	u32tmp = div_u64(s->cfg->xtal * 0x400000ULL, f_sr * 4U);
+	u32tmp <<= 2;
+	buf[0] = (u32tmp >> 24) & 0xff;
+	buf[1] = (u32tmp >> 16) & 0xff;
+	buf[2] = (u32tmp >>  8) & 0xff;
+	buf[3] = (u32tmp >>  0) & 0xff;
+	ret = rtl2832_sdr_wr_regs(s, 0x19f, buf, 4);
+	if (ret)
+		goto err;
+
+	/* low-pass filter */
+	ret = rtl2832_sdr_wr_regs(s, 0x11c,
+			"\xca\xdc\xd7\xd8\xe0\xf2\x0e\x35\x06\x50\x9c\x0d\x71\x11\x14\x71\x74\x19\x41\xa5",
+			20);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_regs(s, 0x017, "\x11\x10", 2);
+	if (ret)
+		goto err;
+
+	/* mode */
+	ret = rtl2832_sdr_wr_regs(s, 0x019, "\x05", 1);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_regs(s, 0x01a, "\x1b\x16\x0d\x06\x01\xff", 6);
+	if (ret)
+		goto err;
+
+	/* FSM */
+	ret = rtl2832_sdr_wr_regs(s, 0x192, "\x00\xf0\x0f", 3);
+	if (ret)
+		goto err;
+
+	/* PID filter */
+	ret = rtl2832_sdr_wr_regs(s, 0x061, "\x60", 1);
+	if (ret)
+		goto err;
+
+	/* used RF tuner based settings */
+	switch (s->cfg->tuner) {
+	case RTL2832_TUNER_E4000:
+		ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x103, "\x5a", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x30", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x104, "\xd0", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x18", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x011, "\xd4", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1e5, "\xf0", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1d9, "\x00", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1db, "\x00", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1dd, "\x14", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1de, "\xec", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1d8, "\x0c", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1e6, "\x02", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1d7, "\x09", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x83", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x010, "\x49", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x87", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00d, "\x85", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x013, "\x02", 1);
+		break;
+	case RTL2832_TUNER_FC0012:
+	case RTL2832_TUNER_FC0013:
+		ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x103, "\x5a", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x2c", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x104, "\xcc", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x16", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x011, "\xe9\xbf", 2);
+		ret = rtl2832_sdr_wr_regs(s, 0x1e5, "\xf0", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1d9, "\x00", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1db, "\x00", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1dd, "\x11", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1de, "\xef", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1d8, "\x0c", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1e6, "\x02", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1d7, "\x09", 1);
+		break;
+	case RTL2832_TUNER_R820T:
+		ret = rtl2832_sdr_wr_regs(s, 0x112, "\x5a", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x102, "\x40", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x115, "\x01", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x103, "\x80", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c7, "\x24", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x104, "\xcc", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x105, "\xbe", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c8, "\x14", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x106, "\x35", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1c9, "\x21", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1ca, "\x21", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1cb, "\x00", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x107, "\x40", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1cd, "\x10", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x1ce, "\x10", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x108, "\x80", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x109, "\x7f", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x10a, "\x80", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x10b, "\x7f", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x00e, "\xfc", 1);
+		ret = rtl2832_sdr_wr_regs(s, 0x011, "\xf4", 1);
+		break;
+	default:
+		dev_notice(&s->udev->dev, "Unsupported tuner\n");
+	}
+
+	/* software reset */
+	ret = rtl2832_sdr_wr_reg_mask(s, 0x101, 0x04, 0x04);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_reg_mask(s, 0x101, 0x00, 0x04);
+	if (ret)
+		goto err;
+err:
+	return ret;
+};
+
+static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_state *s)
+{
+	int ret;
+
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	/* PID filter */
+	ret = rtl2832_sdr_wr_regs(s, 0x061, "\xe0", 1);
+	if (ret)
+		goto err;
+
+	/* mode */
+	ret = rtl2832_sdr_wr_regs(s, 0x019, "\x20", 1);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_regs(s, 0x017, "\x11\x10", 2);
+	if (ret)
+		goto err;
+
+	/* FSM */
+	ret = rtl2832_sdr_wr_regs(s, 0x192, "\x00\x0f\xff", 3);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_regs(s, 0x13e, "\x40\x00", 2);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_wr_regs(s, 0x115, "\x06\x3f\xce\xcc", 4);
+	if (ret)
+		goto err;
+err:
+	return;
+};
+
+static int rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_state *s)
+{
+	struct dvb_frontend *fe = s->fe;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct v4l2_ctrl *bandwidth_auto;
+	struct v4l2_ctrl *bandwidth;
+
+	/*
+	 * tuner RF (Hz)
+	 */
+	if (s->f_tuner == 0)
+		return 0;
+
+	/*
+	 * bandwidth (Hz)
+	 */
+	bandwidth_auto = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO);
+	bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
+	if (v4l2_ctrl_g_ctrl(bandwidth_auto)) {
+		c->bandwidth_hz = s->f_adc;
+		v4l2_ctrl_s_ctrl(bandwidth, s->f_adc);
+	} else {
+		c->bandwidth_hz = v4l2_ctrl_g_ctrl(bandwidth);
+	}
+
+	c->frequency = s->f_tuner;
+	c->delivery_system = SYS_DVBT;
+
+	dev_dbg(&s->udev->dev, "%s: frequency=%u bandwidth=%d\n",
+			__func__, c->frequency, c->bandwidth_hz);
+
+	if (!test_bit(POWER_ON, &s->flags))
+		return 0;
+
+	if (fe->ops.tuner_ops.set_params)
+		fe->ops.tuner_ops.set_params(fe);
+
+	return 0;
+};
+
+static int rtl2832_sdr_set_tuner(struct rtl2832_sdr_state *s)
+{
+	struct dvb_frontend *fe = s->fe;
+
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	if (fe->ops.tuner_ops.init)
+		fe->ops.tuner_ops.init(fe);
+
+	return 0;
+};
+
+static void rtl2832_sdr_unset_tuner(struct rtl2832_sdr_state *s)
+{
+	struct dvb_frontend *fe = s->fe;
+
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	if (fe->ops.tuner_ops.sleep)
+		fe->ops.tuner_ops.sleep(fe);
+
+	return;
+};
+
+static int rtl2832_sdr_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+	struct rtl2832_sdr_state *s = vb2_get_drv_priv(vq);
+	int ret;
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	if (!s->udev)
+		return -ENODEV;
+
+	if (mutex_lock_interruptible(&s->v4l2_lock))
+		return -ERESTARTSYS;
+
+	if (s->d->props->power_ctrl)
+		s->d->props->power_ctrl(s->d, 1);
+
+	set_bit(POWER_ON, &s->flags);
+
+	ret = rtl2832_sdr_set_tuner(s);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_set_tuner_freq(s);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_set_adc(s);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_alloc_stream_bufs(s);
+	if (ret)
+		goto err;
+
+	ret = rtl2832_sdr_alloc_urbs(s);
+	if (ret)
+		goto err;
+
+	s->sequence = 0;
+
+	ret = rtl2832_sdr_submit_urbs(s);
+	if (ret)
+		goto err;
+
+err:
+	mutex_unlock(&s->v4l2_lock);
+
+	return ret;
+}
+
+static int rtl2832_sdr_stop_streaming(struct vb2_queue *vq)
+{
+	struct rtl2832_sdr_state *s = vb2_get_drv_priv(vq);
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	if (mutex_lock_interruptible(&s->v4l2_lock))
+		return -ERESTARTSYS;
+
+	rtl2832_sdr_kill_urbs(s);
+	rtl2832_sdr_free_urbs(s);
+	rtl2832_sdr_free_stream_bufs(s);
+	rtl2832_sdr_cleanup_queued_bufs(s);
+	rtl2832_sdr_unset_adc(s);
+	rtl2832_sdr_unset_tuner(s);
+
+	clear_bit(POWER_ON, &s->flags);
+
+	if (s->d->props->power_ctrl)
+		s->d->props->power_ctrl(s->d, 0);
+
+	mutex_unlock(&s->v4l2_lock);
+
+	return 0;
+}
+
+static struct vb2_ops rtl2832_sdr_vb2_ops = {
+	.queue_setup            = rtl2832_sdr_queue_setup,
+	.buf_prepare            = rtl2832_sdr_buf_prepare,
+	.buf_queue              = rtl2832_sdr_buf_queue,
+	.start_streaming        = rtl2832_sdr_start_streaming,
+	.stop_streaming         = rtl2832_sdr_stop_streaming,
+	.wait_prepare           = vb2_ops_wait_prepare,
+	.wait_finish            = vb2_ops_wait_finish,
+};
+
+static int rtl2832_sdr_g_tuner(struct file *file, void *priv,
+		struct v4l2_tuner *v)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	dev_dbg(&s->udev->dev, "%s: index=%d type=%d\n",
+			__func__, v->index, v->type);
+
+	if (v->index == 0) {
+		strlcpy(v->name, "ADC: Realtek RTL2832", sizeof(v->name));
+		v->type = V4L2_TUNER_ADC;
+		v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
+		v->rangelow =   300000;
+		v->rangehigh = 3200000;
+	} else if (v->index == 1) {
+		strlcpy(v->name, "RF: <unknown>", sizeof(v->name));
+		v->type = V4L2_TUNER_RF;
+		v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
+		v->rangelow =    50000000;
+		v->rangehigh = 2000000000;
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int rtl2832_sdr_s_tuner(struct file *file, void *priv,
+		const struct v4l2_tuner *v)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	if (v->index > 1)
+		return -EINVAL;
+	return 0;
+}
+
+static int rtl2832_sdr_enum_freq_bands(struct file *file, void *priv,
+		struct v4l2_frequency_band *band)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d index=%d\n",
+			__func__, band->tuner, band->type, band->index);
+
+	if (band->tuner == 0) {
+		if (band->index >= ARRAY_SIZE(bands_adc))
+			return -EINVAL;
+
+		*band = bands_adc[band->index];
+	} else if (band->tuner == 1) {
+		if (band->index >= ARRAY_SIZE(bands_fm))
+			return -EINVAL;
+
+		*band = bands_fm[band->index];
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int rtl2832_sdr_g_frequency(struct file *file, void *priv,
+		struct v4l2_frequency *f)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	int ret  = 0;
+	dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d\n",
+			__func__, f->tuner, f->type);
+
+	if (f->tuner == 0) {
+		f->frequency = s->f_adc;
+		f->type = V4L2_TUNER_ADC;
+	} else if (f->tuner == 1) {
+		f->frequency = s->f_tuner;
+		f->type = V4L2_TUNER_RF;
+	} else {
+		return -EINVAL;
+	}
+
+	return ret;
+}
+
+static int rtl2832_sdr_s_frequency(struct file *file, void *priv,
+		const struct v4l2_frequency *f)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	int ret, band;
+
+	dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d frequency=%u\n",
+			__func__, f->tuner, f->type, f->frequency);
+
+	/* ADC band midpoints */
+	#define BAND_ADC_0 ((bands_adc[0].rangehigh + bands_adc[1].rangelow) / 2)
+	#define BAND_ADC_1 ((bands_adc[1].rangehigh + bands_adc[2].rangelow) / 2)
+
+	if (f->tuner == 0 && f->type == V4L2_TUNER_ADC) {
+		if (f->frequency < BAND_ADC_0)
+			band = 0;
+		else if (f->frequency < BAND_ADC_1)
+			band = 1;
+		else
+			band = 2;
+
+		s->f_adc = clamp_t(unsigned int, f->frequency,
+				bands_adc[band].rangelow,
+				bands_adc[band].rangehigh);
+
+		dev_dbg(&s->udev->dev, "%s: ADC frequency=%u Hz\n",
+				__func__, s->f_adc);
+		ret = rtl2832_sdr_set_adc(s);
+	} else if (f->tuner == 1) {
+		s->f_tuner = clamp_t(unsigned int, f->frequency,
+				bands_fm[0].rangelow,
+				bands_fm[0].rangehigh);
+		dev_dbg(&s->udev->dev, "%s: RF frequency=%u Hz\n",
+				__func__, f->frequency);
+
+		ret = rtl2832_sdr_set_tuner_freq(s);
+	} else {
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int rtl2832_sdr_enum_fmt_sdr_cap(struct file *file, void *priv,
+		struct v4l2_fmtdesc *f)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	if (f->index >= NUM_FORMATS)
+		return -EINVAL;
+
+	strlcpy(f->description, formats[f->index].name, sizeof(f->description));
+	f->pixelformat = formats[f->index].pixelformat;
+
+	return 0;
+}
+
+static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv,
+		struct v4l2_format *f)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	dev_dbg(&s->udev->dev, "%s:\n", __func__);
+
+	f->fmt.sdr.pixelformat = s->pixelformat;
+	memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
+
+	return 0;
+}
+
+static int rtl2832_sdr_s_fmt_sdr_cap(struct file *file, void *priv,
+		struct v4l2_format *f)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	struct vb2_queue *q = &s->vb_queue;
+	int i;
+	dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
+			(char *)&f->fmt.sdr.pixelformat);
+
+	if (vb2_is_busy(q))
+		return -EBUSY;
+
+	memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
+	for (i = 0; i < NUM_FORMATS; i++) {
+		if (formats[i].pixelformat == f->fmt.sdr.pixelformat) {
+			s->pixelformat = f->fmt.sdr.pixelformat;
+			return 0;
+		}
+	}
+
+	f->fmt.sdr.pixelformat = formats[0].pixelformat;
+	s->pixelformat = formats[0].pixelformat;
+
+	return 0;
+}
+
+static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv,
+		struct v4l2_format *f)
+{
+	struct rtl2832_sdr_state *s = video_drvdata(file);
+	int i;
+	dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__,
+			(char *)&f->fmt.sdr.pixelformat);
+
+	memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved));
+	for (i = 0; i < NUM_FORMATS; i++) {
+		if (formats[i].pixelformat == f->fmt.sdr.pixelformat)
+			return 0;
+	}
+
+	f->fmt.sdr.pixelformat = formats[0].pixelformat;
+
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops rtl2832_sdr_ioctl_ops = {
+	.vidioc_querycap          = rtl2832_sdr_querycap,
+
+	.vidioc_enum_fmt_sdr_cap  = rtl2832_sdr_enum_fmt_sdr_cap,
+	.vidioc_g_fmt_sdr_cap     = rtl2832_sdr_g_fmt_sdr_cap,
+	.vidioc_s_fmt_sdr_cap     = rtl2832_sdr_s_fmt_sdr_cap,
+	.vidioc_try_fmt_sdr_cap   = rtl2832_sdr_try_fmt_sdr_cap,
+
+	.vidioc_reqbufs           = vb2_ioctl_reqbufs,
+	.vidioc_create_bufs       = vb2_ioctl_create_bufs,
+	.vidioc_prepare_buf       = vb2_ioctl_prepare_buf,
+	.vidioc_querybuf          = vb2_ioctl_querybuf,
+	.vidioc_qbuf              = vb2_ioctl_qbuf,
+	.vidioc_dqbuf             = vb2_ioctl_dqbuf,
+
+	.vidioc_streamon          = vb2_ioctl_streamon,
+	.vidioc_streamoff         = vb2_ioctl_streamoff,
+
+	.vidioc_g_tuner           = rtl2832_sdr_g_tuner,
+	.vidioc_s_tuner           = rtl2832_sdr_s_tuner,
+
+	.vidioc_enum_freq_bands   = rtl2832_sdr_enum_freq_bands,
+	.vidioc_g_frequency       = rtl2832_sdr_g_frequency,
+	.vidioc_s_frequency       = rtl2832_sdr_s_frequency,
+
+	.vidioc_subscribe_event   = v4l2_ctrl_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+	.vidioc_log_status        = v4l2_ctrl_log_status,
+};
+
+static const struct v4l2_file_operations rtl2832_sdr_fops = {
+	.owner                    = THIS_MODULE,
+	.open                     = v4l2_fh_open,
+	.release                  = vb2_fop_release,
+	.read                     = vb2_fop_read,
+	.poll                     = vb2_fop_poll,
+	.mmap                     = vb2_fop_mmap,
+	.unlocked_ioctl           = video_ioctl2,
+};
+
+static struct video_device rtl2832_sdr_template = {
+	.name                     = "Realtek RTL2832 SDR",
+	.release                  = video_device_release_empty,
+	.fops                     = &rtl2832_sdr_fops,
+	.ioctl_ops                = &rtl2832_sdr_ioctl_ops,
+};
+
+static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct rtl2832_sdr_state *s =
+			container_of(ctrl->handler, struct rtl2832_sdr_state,
+					hdl);
+	struct dvb_frontend *fe = s->fe;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	int ret;
+	dev_dbg(&s->udev->dev,
+			"%s: id=%d name=%s val=%d min=%d max=%d step=%d\n",
+			__func__, ctrl->id, ctrl->name, ctrl->val,
+			ctrl->minimum, ctrl->maximum, ctrl->step);
+
+	switch (ctrl->id) {
+	case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
+	case V4L2_CID_RF_TUNER_BANDWIDTH:
+		/* TODO: these controls should be moved to tuner drivers */
+		if (s->bandwidth_auto->val) {
+			/* Round towards the closest legal value */
+			s32 val = s->f_adc + s->bandwidth->step / 2;
+			u32 offset;
+			val = clamp(val, s->bandwidth->minimum, s->bandwidth->maximum);
+			offset = val - s->bandwidth->minimum;
+			offset = s->bandwidth->step * (offset / s->bandwidth->step);
+			s->bandwidth->val = s->bandwidth->minimum + offset;
+		}
+
+		c->bandwidth_hz = s->bandwidth->val;
+
+		if (!test_bit(POWER_ON, &s->flags))
+			return 0;
+
+		if (fe->ops.tuner_ops.set_params)
+			ret = fe->ops.tuner_ops.set_params(fe);
+		else
+			ret = 0;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static const struct v4l2_ctrl_ops rtl2832_sdr_ctrl_ops = {
+	.s_ctrl = rtl2832_sdr_s_ctrl,
+};
+
+static void rtl2832_sdr_video_release(struct v4l2_device *v)
+{
+	struct rtl2832_sdr_state *s =
+			container_of(v, struct rtl2832_sdr_state, v4l2_dev);
+
+	v4l2_ctrl_handler_free(&s->hdl);
+	v4l2_device_unregister(&s->v4l2_dev);
+	kfree(s);
+}
+
+struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
+		struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
+		struct v4l2_subdev *sd)
+{
+	int ret;
+	struct rtl2832_sdr_state *s;
+	const struct v4l2_ctrl_ops *ops = &rtl2832_sdr_ctrl_ops;
+	struct dvb_usb_device *d = i2c_get_adapdata(i2c);
+
+	s = kzalloc(sizeof(struct rtl2832_sdr_state), GFP_KERNEL);
+	if (s == NULL) {
+		dev_err(&d->udev->dev,
+				"Could not allocate memory for rtl2832_sdr_state\n");
+		return NULL;
+	}
+
+	/* setup the state */
+	s->fe = fe;
+	s->d = d;
+	s->udev = d->udev;
+	s->i2c = i2c;
+	s->cfg = cfg;
+	s->f_adc = bands_adc[0].rangelow;
+	s->f_tuner = bands_fm[0].rangelow;
+	s->pixelformat =  V4L2_SDR_FMT_CU8;
+
+	mutex_init(&s->v4l2_lock);
+	mutex_init(&s->vb_queue_lock);
+	spin_lock_init(&s->queued_bufs_lock);
+	INIT_LIST_HEAD(&s->queued_bufs);
+
+	/* Init videobuf2 queue structure */
+	s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
+	s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
+	s->vb_queue.drv_priv = s;
+	s->vb_queue.buf_struct_size = sizeof(struct rtl2832_sdr_frame_buf);
+	s->vb_queue.ops = &rtl2832_sdr_vb2_ops;
+	s->vb_queue.mem_ops = &vb2_vmalloc_memops;
+	s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	ret = vb2_queue_init(&s->vb_queue);
+	if (ret) {
+		dev_err(&s->udev->dev, "Could not initialize vb2 queue\n");
+		goto err_free_mem;
+	}
+
+	/* Register controls */
+	switch (s->cfg->tuner) {
+	case RTL2832_TUNER_E4000:
+		v4l2_ctrl_handler_init(&s->hdl, 9);
+		if (sd)
+			v4l2_ctrl_add_handler(&s->hdl, sd->ctrl_handler, NULL);
+		break;
+	case RTL2832_TUNER_R820T:
+		v4l2_ctrl_handler_init(&s->hdl, 2);
+		s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, ops, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
+		s->bandwidth = v4l2_ctrl_new_std(&s->hdl, ops, V4L2_CID_RF_TUNER_BANDWIDTH, 0, 8000000, 100000, 0);
+		v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
+		break;
+	case RTL2832_TUNER_FC0012:
+	case RTL2832_TUNER_FC0013:
+		v4l2_ctrl_handler_init(&s->hdl, 2);
+		s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, ops, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
+		s->bandwidth = v4l2_ctrl_new_std(&s->hdl, ops, V4L2_CID_RF_TUNER_BANDWIDTH, 6000000, 8000000, 1000000, 6000000);
+		v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
+		break;
+	default:
+		v4l2_ctrl_handler_init(&s->hdl, 0);
+		dev_notice(&s->udev->dev, "%s: Unsupported tuner\n",
+				KBUILD_MODNAME);
+		goto err_free_controls;
+	}
+
+	if (s->hdl.error) {
+		ret = s->hdl.error;
+		dev_err(&s->udev->dev, "Could not initialize controls\n");
+		goto err_free_controls;
+	}
+
+	/* Init video_device structure */
+	s->vdev = rtl2832_sdr_template;
+	s->vdev.queue = &s->vb_queue;
+	s->vdev.queue->lock = &s->vb_queue_lock;
+	set_bit(V4L2_FL_USE_FH_PRIO, &s->vdev.flags);
+	video_set_drvdata(&s->vdev, s);
+
+	/* Register the v4l2_device structure */
+	s->v4l2_dev.release = rtl2832_sdr_video_release;
+	ret = v4l2_device_register(&s->udev->dev, &s->v4l2_dev);
+	if (ret) {
+		dev_err(&s->udev->dev,
+				"Failed to register v4l2-device (%d)\n", ret);
+		goto err_free_controls;
+	}
+
+	s->v4l2_dev.ctrl_handler = &s->hdl;
+	s->vdev.v4l2_dev = &s->v4l2_dev;
+	s->vdev.lock = &s->v4l2_lock;
+	s->vdev.vfl_dir = VFL_DIR_RX;
+
+	ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1);
+	if (ret) {
+		dev_err(&s->udev->dev,
+				"Failed to register as video device (%d)\n",
+				ret);
+		goto err_unregister_v4l2_dev;
+	}
+	dev_info(&s->udev->dev, "Registered as %s\n",
+			video_device_node_name(&s->vdev));
+
+	fe->sec_priv = s;
+	fe->ops.release_sec = rtl2832_sdr_release_sec;
+
+	dev_info(&s->i2c->dev, "%s: Realtek RTL2832 SDR attached\n",
+			KBUILD_MODNAME);
+	return fe;
+
+err_unregister_v4l2_dev:
+	v4l2_device_unregister(&s->v4l2_dev);
+err_free_controls:
+	v4l2_ctrl_handler_free(&s->hdl);
+err_free_mem:
+	kfree(s);
+	return NULL;
+}
+EXPORT_SYMBOL(rtl2832_sdr_attach);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Realtek RTL2832 SDR driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/media/rtl2832u_sdr/rtl2832_sdr.h b/drivers/staging/media/rtl2832u_sdr/rtl2832_sdr.h
new file mode 100644
index 00000000000..b865fadf184
--- /dev/null
+++ b/drivers/staging/media/rtl2832u_sdr/rtl2832_sdr.h
@@ -0,0 +1,54 @@
+/*
+ * Realtek RTL2832U SDR driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    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.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * GNU Radio plugin "gr-kernel" for device usage will be on:
+ * http://git.linuxtv.org/anttip/gr-kernel.git
+ *
+ * TODO:
+ * Help is very highly welcome for these + all the others you could imagine:
+ * - move controls to V4L2 API
+ * - use libv4l2 for stream format conversions
+ * - gr-kernel: switch to v4l2_mmap (current read eats a lot of cpu)
+ * - SDRSharp support
+ */
+
+#ifndef RTL2832_SDR_H
+#define RTL2832_SDR_H
+
+#include <linux/kconfig.h>
+#include <media/v4l2-subdev.h>
+
+/* for config struct */
+#include "rtl2832.h"
+
+#if IS_ENABLED(CONFIG_DVB_RTL2832_SDR)
+extern struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
+	struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
+	struct v4l2_subdev *sd);
+#else
+static inline struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
+	struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
+	struct v4l2_subdev *sd)
+{
+	dev_warn(&i2c->dev, "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif /* RTL2832_SDR_H */
diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
index 5aeb9c0c278..2cbe088f169 100644
--- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
@@ -1295,7 +1295,7 @@ static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev,
 	solo_enc->vidq.mem_ops = &vb2_dma_sg_memops;
 	solo_enc->vidq.drv_priv = solo_enc;
 	solo_enc->vidq.gfp_flags = __GFP_DMA32;
-	solo_enc->vidq.timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	solo_enc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 	solo_enc->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
 	solo_enc->vidq.lock = &solo_enc->lock;
 	ret = vb2_queue_init(&solo_enc->vidq);
diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2.c b/drivers/staging/media/solo6x10/solo6x10-v4l2.c
index 47e72dac9b1..1815f765d03 100644
--- a/drivers/staging/media/solo6x10/solo6x10-v4l2.c
+++ b/drivers/staging/media/solo6x10/solo6x10-v4l2.c
@@ -676,7 +676,7 @@ int solo_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
 	solo_dev->vidq.ops = &solo_video_qops;
 	solo_dev->vidq.mem_ops = &vb2_dma_contig_memops;
 	solo_dev->vidq.drv_priv = solo_dev;
-	solo_dev->vidq.timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	solo_dev->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 	solo_dev->vidq.gfp_flags = __GFP_DMA32;
 	solo_dev->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
 	solo_dev->vidq.lock = &solo_dev->lock;