V4L/DVB (12246): tvp514x: Migration to sub-device framework

This patch converts TVP514x driver to sub-device framework
from V4L2-int framework.

[hverkuil@xs4all.nl: remove inline from the dump_reg function]
Signed-off-by: Brijesh Jadav <brijesh.j@ti.com>
Signed-off-by: Hardik Shah <hardik.shah@ti.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 349 insertions, 540 deletions

diff --git a/drivers/media/video/tvp514x.c b/drivers/media/video/tvp514x.c
index 3750f7fadb1..c8386e2f7a9 100644
--- a/drivers/media/video/tvp514x.c
+++ b/drivers/media/video/tvp514x.c
@@ -31,7 +31,10 @@
 #include <linux/i2c.h>
 #include <linux/delay.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-int-device.h>
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/tvp514x.h>
 
 #include "tvp514x_regs.h"
@@ -49,13 +52,11 @@ static int debug;
 module_param(debug, bool, 0644);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
-#define dump_reg(client, reg, val)				\
-	do {							\
-		val = tvp514x_read_reg(client, reg);		\
-		v4l_info(client, "Reg(0x%.2X): 0x%.2X\n", reg, val); \
-	} while (0)
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("TVP514X linux decoder driver");
+MODULE_LICENSE("GPL");
 
-/**
+/*
  * enum tvp514x_std - enum for supported standards
  */
 enum tvp514x_std {
@@ -64,15 +65,7 @@ enum tvp514x_std {
 	STD_INVALID
 };
 
-/**
- * enum tvp514x_state - enum for different decoder states
- */
-enum tvp514x_state {
-	STATE_NOT_DETECTED,
-	STATE_DETECTED
-};
-
-/**
+/*
  * struct tvp514x_std_info - Structure to store standard informations
  * @width: Line width in pixels
  * @height:Number of active lines
@@ -87,35 +80,29 @@ struct tvp514x_std_info {
 };
 
 static struct tvp514x_reg tvp514x_reg_list_default[0x40];
-/**
+/*
  * struct tvp514x_decoder - TVP5146/47 decoder object
- * @v4l2_int_device: Slave handle
- * @tvp514x_slave: Slave pointer which is used by @v4l2_int_device
+ * @sd: Subdevice Slave handle
  * @tvp514x_regs: copy of hw's regs with preset values.
  * @pdata: Board specific
- * @client: I2C client data
- * @id: Entry from I2C table
  * @ver: Chip version
- * @state: TVP5146/47 decoder state - detected or not-detected
+ * @streaming: TVP5146/47 decoder streaming - enabled or disabled.
  * @pix: Current pixel format
  * @num_fmts: Number of formats
  * @fmt_list: Format list
  * @current_std: Current standard
  * @num_stds: Number of standards
  * @std_list: Standards list
- * @route: input and output routing at chip level
+ * @input: Input routing at chip level
+ * @output: Output routing at chip level
  */
 struct tvp514x_decoder {
-	struct v4l2_int_device v4l2_int_device;
-	struct v4l2_int_slave tvp514x_slave;
+	struct v4l2_subdev sd;
 	struct tvp514x_reg tvp514x_regs[ARRAY_SIZE(tvp514x_reg_list_default)];
 	const struct tvp514x_platform_data *pdata;
-	struct i2c_client *client;
-
-	struct i2c_device_id *id;
 
 	int ver;
-	enum tvp514x_state state;
+	int streaming;
 
 	struct v4l2_pix_format pix;
 	int num_fmts;
@@ -124,8 +111,11 @@ struct tvp514x_decoder {
 	enum tvp514x_std current_std;
 	int num_stds;
 	struct tvp514x_std_info *std_list;
-
-	struct v4l2_routing route;
+	/*
+	 * Input and Output Routing parameters
+	 */
+	u32 input;
+	u32 output;
 };
 
 /* TVP514x default register values */
@@ -191,7 +181,8 @@ static struct tvp514x_reg tvp514x_reg_list_default[] = {
 	{TOK_TERM, 0, 0},
 };
 
-/* List of image formats supported by TVP5146/47 decoder
+/*
+ * List of image formats supported by TVP5146/47 decoder
  * Currently we are using 8 bit mode only, but can be
  * extended to 10/20 bit mode.
  */
@@ -240,35 +231,29 @@ static struct tvp514x_std_info tvp514x_std_list[] = {
 	},
 	/* Standard: need to add for additional standard */
 };
-/*
- * Control structure for Auto Gain
- *     This is temporary data, will get replaced once
- *     v4l2_ctrl_query_fill supports it.
- */
-static const struct v4l2_queryctrl tvp514x_autogain_ctrl = {
-	.id = V4L2_CID_AUTOGAIN,
-	.name = "Gain, Automatic",
-	.type = V4L2_CTRL_TYPE_BOOLEAN,
-	.minimum = 0,
-	.maximum = 1,
-	.step = 1,
-	.default_value = 1,
-};
+
+
+static inline struct tvp514x_decoder *to_decoder(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct tvp514x_decoder, sd);
+}
+
 
 /*
  * Read a value from a register in an TVP5146/47 decoder device.
  * Returns value read if successful, or non-zero (-1) otherwise.
  */
-static int tvp514x_read_reg(struct i2c_client *client, u8 reg)
+static int tvp514x_read_reg(struct v4l2_subdev *sd, u8 reg)
 {
-	int err;
-	int retry = 0;
+	int err, retry = 0;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
 read_again:
 
 	err = i2c_smbus_read_byte_data(client, reg);
 	if (err == -1) {
 		if (retry <= I2C_RETRY_COUNT) {
-			v4l_warn(client, "Read: retry ... %d\n", retry);
+			v4l2_warn(sd, "Read: retry ... %d\n", retry);
 			retry++;
 			msleep_interruptible(10);
 			goto read_again;
@@ -278,20 +263,29 @@ read_again:
 	return err;
 }
 
+static void dump_reg(struct v4l2_subdev *sd, u8 reg)
+{
+	u32 val;
+
+	val = tvp514x_read_reg(sd, reg);
+	v4l2_info(sd, "Reg(0x%.2X): 0x%.2X\n", reg, val);
+}
+
 /*
  * Write a value to a register in an TVP5146/47 decoder device.
  * Returns zero if successful, or non-zero otherwise.
  */
-static int tvp514x_write_reg(struct i2c_client *client, u8 reg, u8 val)
+static int tvp514x_write_reg(struct v4l2_subdev *sd, u8 reg, u8 val)
 {
-	int err;
-	int retry = 0;
+	int err, retry = 0;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
 write_again:
 
 	err = i2c_smbus_write_byte_data(client, reg, val);
 	if (err) {
 		if (retry <= I2C_RETRY_COUNT) {
-			v4l_warn(client, "Write: retry ... %d\n", retry);
+			v4l2_warn(sd, "Write: retry ... %d\n", retry);
 			retry++;
 			msleep_interruptible(10);
 			goto write_again;
@@ -311,7 +305,7 @@ write_again:
  * reglist - list of registers to be written
  * Returns zero if successful, or non-zero otherwise.
  */
-static int tvp514x_write_regs(struct i2c_client *client,
+static int tvp514x_write_regs(struct v4l2_subdev *sd,
 			      const struct tvp514x_reg reglist[])
 {
 	int err;
@@ -326,9 +320,9 @@ static int tvp514x_write_regs(struct i2c_client *client,
 		if (next->token == TOK_SKIP)
 			continue;
 
-		err = tvp514x_write_reg(client, next->reg, (u8) next->val);
+		err = tvp514x_write_reg(sd, next->reg, (u8) next->val);
 		if (err) {
-			v4l_err(client, "Write failed. Err[%d]\n", err);
+			v4l2_err(sd, "Write failed. Err[%d]\n", err);
 			return err;
 		}
 	}
@@ -339,17 +333,15 @@ static int tvp514x_write_regs(struct i2c_client *client,
  * tvp514x_get_current_std:
  * Returns the current standard detected by TVP5146/47
  */
-static enum tvp514x_std tvp514x_get_current_std(struct tvp514x_decoder
-						*decoder)
+static enum tvp514x_std tvp514x_get_current_std(struct v4l2_subdev *sd)
 {
 	u8 std, std_status;
 
-	std = tvp514x_read_reg(decoder->client, REG_VIDEO_STD);
-	if ((std & VIDEO_STD_MASK) == VIDEO_STD_AUTO_SWITCH_BIT) {
+	std = tvp514x_read_reg(sd, REG_VIDEO_STD);
+	if ((std & VIDEO_STD_MASK) == VIDEO_STD_AUTO_SWITCH_BIT)
 		/* use the standard status register */
-		std_status = tvp514x_read_reg(decoder->client,
-				REG_VIDEO_STD_STATUS);
-	} else
+		std_status = tvp514x_read_reg(sd, REG_VIDEO_STD_STATUS);
+	else
 		std_status = std;	/* use the standard register itself */
 
 	switch (std_status & VIDEO_STD_MASK) {
@@ -369,70 +361,69 @@ static enum tvp514x_std tvp514x_get_current_std(struct tvp514x_decoder
 /*
  * TVP5146/47 register dump function
  */
-static void tvp514x_reg_dump(struct tvp514x_decoder *decoder)
+static void tvp514x_reg_dump(struct v4l2_subdev *sd)
 {
-	u8 value;
-
-	dump_reg(decoder->client, REG_INPUT_SEL, value);
-	dump_reg(decoder->client, REG_AFE_GAIN_CTRL, value);
-	dump_reg(decoder->client, REG_VIDEO_STD, value);
-	dump_reg(decoder->client, REG_OPERATION_MODE, value);
-	dump_reg(decoder->client, REG_COLOR_KILLER, value);
-	dump_reg(decoder->client, REG_LUMA_CONTROL1, value);
-	dump_reg(decoder->client, REG_LUMA_CONTROL2, value);
-	dump_reg(decoder->client, REG_LUMA_CONTROL3, value);
-	dump_reg(decoder->client, REG_BRIGHTNESS, value);
-	dump_reg(decoder->client, REG_CONTRAST, value);
-	dump_reg(decoder->client, REG_SATURATION, value);
-	dump_reg(decoder->client, REG_HUE, value);
-	dump_reg(decoder->client, REG_CHROMA_CONTROL1, value);
-	dump_reg(decoder->client, REG_CHROMA_CONTROL2, value);
-	dump_reg(decoder->client, REG_COMP_PR_SATURATION, value);
-	dump_reg(decoder->client, REG_COMP_Y_CONTRAST, value);
-	dump_reg(decoder->client, REG_COMP_PB_SATURATION, value);
-	dump_reg(decoder->client, REG_COMP_Y_BRIGHTNESS, value);
-	dump_reg(decoder->client, REG_AVID_START_PIXEL_LSB, value);
-	dump_reg(decoder->client, REG_AVID_START_PIXEL_MSB, value);
-	dump_reg(decoder->client, REG_AVID_STOP_PIXEL_LSB, value);
-	dump_reg(decoder->client, REG_AVID_STOP_PIXEL_MSB, value);
-	dump_reg(decoder->client, REG_HSYNC_START_PIXEL_LSB, value);
-	dump_reg(decoder->client, REG_HSYNC_START_PIXEL_MSB, value);
-	dump_reg(decoder->client, REG_HSYNC_STOP_PIXEL_LSB, value);
-	dump_reg(decoder->client, REG_HSYNC_STOP_PIXEL_MSB, value);
-	dump_reg(decoder->client, REG_VSYNC_START_LINE_LSB, value);
-	dump_reg(decoder->client, REG_VSYNC_START_LINE_MSB, value);
-	dump_reg(decoder->client, REG_VSYNC_STOP_LINE_LSB, value);
-	dump_reg(decoder->client, REG_VSYNC_STOP_LINE_MSB, value);
-	dump_reg(decoder->client, REG_VBLK_START_LINE_LSB, value);
-	dump_reg(decoder->client, REG_VBLK_START_LINE_MSB, value);
-	dump_reg(decoder->client, REG_VBLK_STOP_LINE_LSB, value);
-	dump_reg(decoder->client, REG_VBLK_STOP_LINE_MSB, value);
-	dump_reg(decoder->client, REG_SYNC_CONTROL, value);
-	dump_reg(decoder->client, REG_OUTPUT_FORMATTER1, value);
-	dump_reg(decoder->client, REG_OUTPUT_FORMATTER2, value);
-	dump_reg(decoder->client, REG_OUTPUT_FORMATTER3, value);
-	dump_reg(decoder->client, REG_OUTPUT_FORMATTER4, value);
-	dump_reg(decoder->client, REG_OUTPUT_FORMATTER5, value);
-	dump_reg(decoder->client, REG_OUTPUT_FORMATTER6, value);
-	dump_reg(decoder->client, REG_CLEAR_LOST_LOCK, value);
+	dump_reg(sd, REG_INPUT_SEL);
+	dump_reg(sd, REG_AFE_GAIN_CTRL);
+	dump_reg(sd, REG_VIDEO_STD);
+	dump_reg(sd, REG_OPERATION_MODE);
+	dump_reg(sd, REG_COLOR_KILLER);
+	dump_reg(sd, REG_LUMA_CONTROL1);
+	dump_reg(sd, REG_LUMA_CONTROL2);
+	dump_reg(sd, REG_LUMA_CONTROL3);
+	dump_reg(sd, REG_BRIGHTNESS);
+	dump_reg(sd, REG_CONTRAST);
+	dump_reg(sd, REG_SATURATION);
+	dump_reg(sd, REG_HUE);
+	dump_reg(sd, REG_CHROMA_CONTROL1);
+	dump_reg(sd, REG_CHROMA_CONTROL2);
+	dump_reg(sd, REG_COMP_PR_SATURATION);
+	dump_reg(sd, REG_COMP_Y_CONTRAST);
+	dump_reg(sd, REG_COMP_PB_SATURATION);
+	dump_reg(sd, REG_COMP_Y_BRIGHTNESS);
+	dump_reg(sd, REG_AVID_START_PIXEL_LSB);
+	dump_reg(sd, REG_AVID_START_PIXEL_MSB);
+	dump_reg(sd, REG_AVID_STOP_PIXEL_LSB);
+	dump_reg(sd, REG_AVID_STOP_PIXEL_MSB);
+	dump_reg(sd, REG_HSYNC_START_PIXEL_LSB);
+	dump_reg(sd, REG_HSYNC_START_PIXEL_MSB);
+	dump_reg(sd, REG_HSYNC_STOP_PIXEL_LSB);
+	dump_reg(sd, REG_HSYNC_STOP_PIXEL_MSB);
+	dump_reg(sd, REG_VSYNC_START_LINE_LSB);
+	dump_reg(sd, REG_VSYNC_START_LINE_MSB);
+	dump_reg(sd, REG_VSYNC_STOP_LINE_LSB);
+	dump_reg(sd, REG_VSYNC_STOP_LINE_MSB);
+	dump_reg(sd, REG_VBLK_START_LINE_LSB);
+	dump_reg(sd, REG_VBLK_START_LINE_MSB);
+	dump_reg(sd, REG_VBLK_STOP_LINE_LSB);
+	dump_reg(sd, REG_VBLK_STOP_LINE_MSB);
+	dump_reg(sd, REG_SYNC_CONTROL);
+	dump_reg(sd, REG_OUTPUT_FORMATTER1);
+	dump_reg(sd, REG_OUTPUT_FORMATTER2);
+	dump_reg(sd, REG_OUTPUT_FORMATTER3);
+	dump_reg(sd, REG_OUTPUT_FORMATTER4);
+	dump_reg(sd, REG_OUTPUT_FORMATTER5);
+	dump_reg(sd, REG_OUTPUT_FORMATTER6);
+	dump_reg(sd, REG_CLEAR_LOST_LOCK);
 }
 
 /*
  * Configure the TVP5146/47 with the current register settings
  * Returns zero if successful, or non-zero otherwise.
  */
-static int tvp514x_configure(struct tvp514x_decoder *decoder)
+static int tvp514x_configure(struct v4l2_subdev *sd,
+		struct tvp514x_decoder *decoder)
 {
 	int err;
 
 	/* common register initialization */
 	err =
-	    tvp514x_write_regs(decoder->client, decoder->tvp514x_regs);
+	    tvp514x_write_regs(sd, decoder->tvp514x_regs);
 	if (err)
 		return err;
 
 	if (debug)
-		tvp514x_reg_dump(decoder);
+		tvp514x_reg_dump(sd);
 
 	return 0;
 }
@@ -445,15 +436,17 @@ static int tvp514x_configure(struct tvp514x_decoder *decoder)
  * Returns ENODEV error number if no device is detected, or zero
  * if a device is detected.
  */
-static int tvp514x_detect(struct tvp514x_decoder *decoder)
+static int tvp514x_detect(struct v4l2_subdev *sd,
+		struct tvp514x_decoder *decoder)
 {
 	u8 chip_id_msb, chip_id_lsb, rom_ver;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-	chip_id_msb = tvp514x_read_reg(decoder->client, REG_CHIP_ID_MSB);
-	chip_id_lsb = tvp514x_read_reg(decoder->client, REG_CHIP_ID_LSB);
-	rom_ver = tvp514x_read_reg(decoder->client, REG_ROM_VERSION);
+	chip_id_msb = tvp514x_read_reg(sd, REG_CHIP_ID_MSB);
+	chip_id_lsb = tvp514x_read_reg(sd, REG_CHIP_ID_LSB);
+	rom_ver = tvp514x_read_reg(sd, REG_ROM_VERSION);
 
-	v4l_dbg(1, debug, decoder->client,
+	v4l2_dbg(1, debug, sd,
 		 "chip id detected msb:0x%x lsb:0x%x rom version:0x%x\n",
 		 chip_id_msb, chip_id_lsb, rom_ver);
 	if ((chip_id_msb != TVP514X_CHIP_ID_MSB)
@@ -462,19 +455,16 @@ static int tvp514x_detect(struct tvp514x_decoder *decoder)
 		/* We didn't read the values we expected, so this must not be
 		 * an TVP5146/47.
 		 */
-		v4l_err(decoder->client,
-			"chip id mismatch msb:0x%x lsb:0x%x\n",
-			chip_id_msb, chip_id_lsb);
+		v4l2_err(sd, "chip id mismatch msb:0x%x lsb:0x%x\n",
+				chip_id_msb, chip_id_lsb);
 		return -ENODEV;
 	}
 
 	decoder->ver = rom_ver;
-	decoder->state = STATE_DETECTED;
 
-	v4l_info(decoder->client,
-			"%s found at 0x%x (%s)\n", decoder->client->name,
-			decoder->client->addr << 1,
-			decoder->client->adapter->name);
+	v4l2_info(sd, "%s (Version - 0x%.2x) found at 0x%x (%s)\n",
+			client->name, decoder->ver,
+			client->addr << 1, client->adapter->name);
 	return 0;
 }
 
@@ -483,17 +473,17 @@ static int tvp514x_detect(struct tvp514x_decoder *decoder)
  * TVP5146/47 decoder driver.
  */
 
-/**
- * ioctl_querystd - V4L2 decoder interface handler for VIDIOC_QUERYSTD ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_querystd - V4L2 decoder interface handler for VIDIOC_QUERYSTD ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @std_id: standard V4L2 std_id ioctl enum
  *
  * Returns the current standard detected by TVP5146/47. If no active input is
  * detected, returns -EINVAL
  */
-static int ioctl_querystd(struct v4l2_int_device *s, v4l2_std_id *std_id)
+static int tvp514x_querystd(struct v4l2_subdev *sd, v4l2_std_id *std_id)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	enum tvp514x_std current_std;
 	enum tvp514x_input input_sel;
 	u8 sync_lock_status, lock_mask;
@@ -502,11 +492,11 @@ static int ioctl_querystd(struct v4l2_int_device *s, v4l2_std_id *std_id)
 		return -EINVAL;
 
 	/* get the current standard */
-	current_std = tvp514x_get_current_std(decoder);
+	current_std = tvp514x_get_current_std(sd);
 	if (current_std == STD_INVALID)
 		return -EINVAL;
 
-	input_sel = decoder->route.input;
+	input_sel = decoder->input;
 
 	switch (input_sel) {
 	case INPUT_CVBS_VI1A:
@@ -544,42 +534,39 @@ static int ioctl_querystd(struct v4l2_int_device *s, v4l2_std_id *std_id)
 		return -EINVAL;
 	}
 	/* check whether signal is locked */
-	sync_lock_status = tvp514x_read_reg(decoder->client, REG_STATUS1);
+	sync_lock_status = tvp514x_read_reg(sd, REG_STATUS1);
 	if (lock_mask != (sync_lock_status & lock_mask))
 		return -EINVAL;	/* No input detected */
 
 	decoder->current_std = current_std;
 	*std_id = decoder->std_list[current_std].standard.id;
 
-	v4l_dbg(1, debug, decoder->client, "Current STD: %s",
+	v4l2_dbg(1, debug, sd, "Current STD: %s",
 			decoder->std_list[current_std].standard.name);
 	return 0;
 }
 
-/**
- * ioctl_s_std - V4L2 decoder interface handler for VIDIOC_S_STD ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_s_std - V4L2 decoder interface handler for VIDIOC_S_STD ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @std_id: standard V4L2 v4l2_std_id ioctl enum
  *
  * If std_id is supported, sets the requested standard. Otherwise, returns
  * -EINVAL
  */
-static int ioctl_s_std(struct v4l2_int_device *s, v4l2_std_id *std_id)
+static int tvp514x_s_std(struct v4l2_subdev *sd, v4l2_std_id std_id)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	int err, i;
 
-	if (std_id == NULL)
-		return -EINVAL;
-
 	for (i = 0; i < decoder->num_stds; i++)
-		if (*std_id & decoder->std_list[i].standard.id)
+		if (std_id & decoder->std_list[i].standard.id)
 			break;
 
 	if ((i == decoder->num_stds) || (i == STD_INVALID))
 		return -EINVAL;
 
-	err = tvp514x_write_reg(decoder->client, REG_VIDEO_STD,
+	err = tvp514x_write_reg(sd, REG_VIDEO_STD,
 				decoder->std_list[i].video_std);
 	if (err)
 		return err;
@@ -588,24 +575,24 @@ static int ioctl_s_std(struct v4l2_int_device *s, v4l2_std_id *std_id)
 	decoder->tvp514x_regs[REG_VIDEO_STD].val =
 		decoder->std_list[i].video_std;
 
-	v4l_dbg(1, debug, decoder->client, "Standard set to: %s",
+	v4l2_dbg(1, debug, sd, "Standard set to: %s",
 			decoder->std_list[i].standard.name);
 	return 0;
 }
 
-/**
- * ioctl_s_routing - V4L2 decoder interface handler for VIDIOC_S_INPUT ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_s_routing - V4L2 decoder interface handler for VIDIOC_S_INPUT ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @index: number of the input
  *
  * If index is valid, selects the requested input. Otherwise, returns -EINVAL if
  * the input is not supported or there is no active signal present in the
  * selected input.
  */
-static int ioctl_s_routing(struct v4l2_int_device *s,
-				struct v4l2_routing *route)
+static int tvp514x_s_routing(struct v4l2_subdev *sd,
+				u32 input, u32 output, u32 config)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	int err;
 	enum tvp514x_input input_sel;
 	enum tvp514x_output output_sel;
@@ -613,20 +600,20 @@ static int ioctl_s_routing(struct v4l2_int_device *s,
 	u8 sync_lock_status, lock_mask;
 	int try_count = LOCK_RETRY_COUNT;
 
-	if ((!route) || (route->input >= INPUT_INVALID) ||
-			(route->output >= OUTPUT_INVALID))
+	if ((input >= INPUT_INVALID) ||
+			(output >= OUTPUT_INVALID))
 		return -EINVAL;	/* Index out of bound */
 
-	input_sel = route->input;
-	output_sel = route->output;
+	input_sel = input;
+	output_sel = output;
 
-	err = tvp514x_write_reg(decoder->client, REG_INPUT_SEL, input_sel);
+	err = tvp514x_write_reg(sd, REG_INPUT_SEL, input_sel);
 	if (err)
 		return err;
 
-	output_sel |= tvp514x_read_reg(decoder->client,
+	output_sel |= tvp514x_read_reg(sd,
 			REG_OUTPUT_FORMATTER1) & 0x7;
-	err = tvp514x_write_reg(decoder->client, REG_OUTPUT_FORMATTER1,
+	err = tvp514x_write_reg(sd, REG_OUTPUT_FORMATTER1,
 			output_sel);
 	if (err)
 		return err;
@@ -637,7 +624,7 @@ static int ioctl_s_routing(struct v4l2_int_device *s,
 	/* Clear status */
 	msleep(LOCK_RETRY_DELAY);
 	err =
-	    tvp514x_write_reg(decoder->client, REG_CLEAR_LOST_LOCK, 0x01);
+	    tvp514x_write_reg(sd, REG_CLEAR_LOST_LOCK, 0x01);
 	if (err)
 		return err;
 
@@ -682,11 +669,11 @@ static int ioctl_s_routing(struct v4l2_int_device *s,
 		msleep(LOCK_RETRY_DELAY);
 
 		/* get the current standard for future reference */
-		current_std = tvp514x_get_current_std(decoder);
+		current_std = tvp514x_get_current_std(sd);
 		if (current_std == STD_INVALID)
 			continue;
 
-		sync_lock_status = tvp514x_read_reg(decoder->client,
+		sync_lock_status = tvp514x_read_reg(sd,
 				REG_STATUS1);
 		if (lock_mask == (sync_lock_status & lock_mask))
 			break;	/* Input detected */
@@ -696,28 +683,26 @@ static int ioctl_s_routing(struct v4l2_int_device *s,
 		return -EINVAL;
 
 	decoder->current_std = current_std;
-	decoder->route.input = route->input;
-	decoder->route.output = route->output;
+	decoder->input = input;
+	decoder->output = output;
 
-	v4l_dbg(1, debug, decoder->client,
-			"Input set to: %d, std : %d",
+	v4l2_dbg(1, debug, sd, "Input set to: %d, std : %d",
 			input_sel, current_std);
 
 	return 0;
 }
 
-/**
- * ioctl_queryctrl - V4L2 decoder interface handler for VIDIOC_QUERYCTRL ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_queryctrl - V4L2 decoder interface handler for VIDIOC_QUERYCTRL ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @qctrl: standard V4L2 v4l2_queryctrl structure
  *
  * If the requested control is supported, returns the control information.
  * Otherwise, returns -EINVAL if the control is not supported.
  */
 static int
-ioctl_queryctrl(struct v4l2_int_device *s, struct v4l2_queryctrl *qctrl)
+tvp514x_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qctrl)
 {
-	struct tvp514x_decoder *decoder = s->priv;
 	int err = -EINVAL;
 
 	if (qctrl == NULL)
@@ -744,30 +729,27 @@ ioctl_queryctrl(struct v4l2_int_device *s, struct v4l2_queryctrl *qctrl)
 		err = v4l2_ctrl_query_fill(qctrl, -180, 180, 180, 0);
 		break;
 	case V4L2_CID_AUTOGAIN:
-		/* Autogain is either 0 or 1*/
-		memcpy(qctrl, &tvp514x_autogain_ctrl,
-				sizeof(struct v4l2_queryctrl));
-		err = 0;
+		/*
+		 * Auto Gain supported is -
+		 * 	0 - 1 (Default - 1)
+		 */
+		err = v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1);
 		break;
 	default:
-		v4l_err(decoder->client,
-			"invalid control id %d\n", qctrl->id);
+		v4l2_err(sd, "invalid control id %d\n", qctrl->id);
 		return err;
 	}
 
-	v4l_dbg(1, debug, decoder->client,
-			"Query Control: %s : Min - %d, Max - %d, Def - %d",
-			qctrl->name,
-			qctrl->minimum,
-			qctrl->maximum,
+	v4l2_dbg(1, debug, sd, "Query Control:%s: Min - %d, Max - %d, Def - %d",
+			qctrl->name, qctrl->minimum, qctrl->maximum,
 			qctrl->default_value);
 
 	return err;
 }
 
-/**
- * ioctl_g_ctrl - V4L2 decoder interface handler for VIDIOC_G_CTRL ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_g_ctrl - V4L2 decoder interface handler for VIDIOC_G_CTRL ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @ctrl: pointer to v4l2_control structure
  *
  * If the requested control is supported, returns the control's current
@@ -775,9 +757,9 @@ ioctl_queryctrl(struct v4l2_int_device *s, struct v4l2_queryctrl *qctrl)
  * supported.
  */
 static int
-ioctl_g_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
+tvp514x_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 
 	if (ctrl == NULL)
 		return -EINVAL;
@@ -811,74 +793,70 @@ ioctl_g_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
 
 		break;
 	default:
-		v4l_err(decoder->client,
-			"invalid control id %d\n", ctrl->id);
+		v4l2_err(sd, "invalid control id %d\n", ctrl->id);
 		return -EINVAL;
 	}
 
-	v4l_dbg(1, debug, decoder->client,
-			"Get Control: ID - %d - %d",
+	v4l2_dbg(1, debug, sd, "Get Control: ID - %d - %d",
 			ctrl->id, ctrl->value);
 	return 0;
 }
 
-/**
- * ioctl_s_ctrl - V4L2 decoder interface handler for VIDIOC_S_CTRL ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_s_ctrl - V4L2 decoder interface handler for VIDIOC_S_CTRL ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @ctrl: pointer to v4l2_control structure
  *
  * If the requested control is supported, sets the control's current
  * value in HW. Otherwise, returns -EINVAL if the control is not supported.
  */
 static int
-ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
+tvp514x_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	int err = -EINVAL, value;
 
 	if (ctrl == NULL)
 		return err;
 
-	value = (__s32) ctrl->value;
+	value = ctrl->value;
 
 	switch (ctrl->id) {
 	case V4L2_CID_BRIGHTNESS:
 		if (ctrl->value < 0 || ctrl->value > 255) {
-			v4l_err(decoder->client,
-					"invalid brightness setting %d\n",
+			v4l2_err(sd, "invalid brightness setting %d\n",
 					ctrl->value);
 			return -ERANGE;
 		}
-		err = tvp514x_write_reg(decoder->client, REG_BRIGHTNESS,
+		err = tvp514x_write_reg(sd, REG_BRIGHTNESS,
 				value);
 		if (err)
 			return err;
+
 		decoder->tvp514x_regs[REG_BRIGHTNESS].val = value;
 		break;
 	case V4L2_CID_CONTRAST:
 		if (ctrl->value < 0 || ctrl->value > 255) {
-			v4l_err(decoder->client,
-					"invalid contrast setting %d\n",
+			v4l2_err(sd, "invalid contrast setting %d\n",
 					ctrl->value);
 			return -ERANGE;
 		}
-		err = tvp514x_write_reg(decoder->client, REG_CONTRAST,
-				value);
+		err = tvp514x_write_reg(sd, REG_CONTRAST, value);
 		if (err)
 			return err;
+
 		decoder->tvp514x_regs[REG_CONTRAST].val = value;
 		break;
 	case V4L2_CID_SATURATION:
 		if (ctrl->value < 0 || ctrl->value > 255) {
-			v4l_err(decoder->client,
-					"invalid saturation setting %d\n",
+			v4l2_err(sd, "invalid saturation setting %d\n",
 					ctrl->value);
 			return -ERANGE;
 		}
-		err = tvp514x_write_reg(decoder->client, REG_SATURATION,
-				value);
+		err = tvp514x_write_reg(sd, REG_SATURATION, value);
 		if (err)
 			return err;
+
 		decoder->tvp514x_regs[REG_SATURATION].val = value;
 		break;
 	case V4L2_CID_HUE:
@@ -889,15 +867,13 @@ ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
 		else if (value == 0)
 			value = 0;
 		else {
-			v4l_err(decoder->client,
-					"invalid hue setting %d\n",
-					ctrl->value);
+			v4l2_err(sd, "invalid hue setting %d\n", ctrl->value);
 			return -ERANGE;
 		}
-		err = tvp514x_write_reg(decoder->client, REG_HUE,
-				value);
+		err = tvp514x_write_reg(sd, REG_HUE, value);
 		if (err)
 			return err;
+
 		decoder->tvp514x_regs[REG_HUE].val = value;
 		break;
 	case V4L2_CID_AUTOGAIN:
@@ -906,41 +882,38 @@ ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
 		else if (value == 0)
 			value = 0x0C;
 		else {
-			v4l_err(decoder->client,
-					"invalid auto gain setting %d\n",
+			v4l2_err(sd, "invalid auto gain setting %d\n",
 					ctrl->value);
 			return -ERANGE;
 		}
-		err = tvp514x_write_reg(decoder->client, REG_AFE_GAIN_CTRL,
-				value);
+		err = tvp514x_write_reg(sd, REG_AFE_GAIN_CTRL, value);
 		if (err)
 			return err;
+
 		decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value;
 		break;
 	default:
-		v4l_err(decoder->client,
-			"invalid control id %d\n", ctrl->id);
+		v4l2_err(sd, "invalid control id %d\n", ctrl->id);
 		return err;
 	}
 
-	v4l_dbg(1, debug, decoder->client,
-			"Set Control: ID - %d - %d",
+	v4l2_dbg(1, debug, sd, "Set Control: ID - %d - %d",
 			ctrl->id, ctrl->value);
 
 	return err;
 }
 
-/**
- * ioctl_enum_fmt_cap - Implement the CAPTURE buffer VIDIOC_ENUM_FMT ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_enum_fmt_cap - Implement the CAPTURE buffer VIDIOC_ENUM_FMT ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @fmt: standard V4L2 VIDIOC_ENUM_FMT ioctl structure
  *
  * Implement the VIDIOC_ENUM_FMT ioctl to enumerate supported formats
  */
 static int
-ioctl_enum_fmt_cap(struct v4l2_int_device *s, struct v4l2_fmtdesc *fmt)
+tvp514x_enum_fmt_cap(struct v4l2_subdev *sd, struct v4l2_fmtdesc *fmt)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	int index;
 
 	if (fmt == NULL)
@@ -956,16 +929,15 @@ ioctl_enum_fmt_cap(struct v4l2_int_device *s, struct v4l2_fmtdesc *fmt)
 	memcpy(fmt, &decoder->fmt_list[index],
 		sizeof(struct v4l2_fmtdesc));
 
-	v4l_dbg(1, debug, decoder->client,
-			"Current FMT: index - %d (%s)",
+	v4l2_dbg(1, debug, sd, "Current FMT: index - %d (%s)",
 			decoder->fmt_list[index].index,
 			decoder->fmt_list[index].description);
 	return 0;
 }
 
-/**
- * ioctl_try_fmt_cap - Implement the CAPTURE buffer VIDIOC_TRY_FMT ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_try_fmt_cap - Implement the CAPTURE buffer VIDIOC_TRY_FMT ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @f: pointer to standard V4L2 VIDIOC_TRY_FMT ioctl structure
  *
  * Implement the VIDIOC_TRY_FMT ioctl for the CAPTURE buffer type. This
@@ -973,9 +945,9 @@ ioctl_enum_fmt_cap(struct v4l2_int_device *s, struct v4l2_fmtdesc *fmt)
  * without actually making it take effect.
  */
 static int
-ioctl_try_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
+tvp514x_try_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	int ifmt;
 	struct v4l2_pix_format *pix;
 	enum tvp514x_std current_std;
@@ -989,7 +961,7 @@ ioctl_try_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
 	pix = &f->fmt.pix;
 
 	/* Calculate height and width based on current standard */
-	current_std = tvp514x_get_current_std(decoder);
+	current_std = tvp514x_get_current_std(sd);
 	if (current_std == STD_INVALID)
 		return -EINVAL;
 
@@ -1012,17 +984,16 @@ ioctl_try_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
 	pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
 	pix->priv = 0;
 
-	v4l_dbg(1, debug, decoder->client,
-			"Try FMT: pixelformat - %s, bytesperline - %d"
+	v4l2_dbg(1, debug, sd, "Try FMT: pixelformat - %s, bytesperline - %d"
 			"Width - %d, Height - %d",
 			decoder->fmt_list[ifmt].description, pix->bytesperline,
 			pix->width, pix->height);
 	return 0;
 }
 
-/**
- * ioctl_s_fmt_cap - V4L2 decoder interface handler for VIDIOC_S_FMT ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_s_fmt_cap - V4L2 decoder interface handler for VIDIOC_S_FMT ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @f: pointer to standard V4L2 VIDIOC_S_FMT ioctl structure
  *
  * If the requested format is supported, configures the HW to use that
@@ -1030,9 +1001,9 @@ ioctl_try_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
  * correctly configured.
  */
 static int
-ioctl_s_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
+tvp514x_s_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	struct v4l2_pix_format *pix;
 	int rval;
 
@@ -1043,7 +1014,7 @@ ioctl_s_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
 		return -EINVAL;	/* only capture is supported */
 
 	pix = &f->fmt.pix;
-	rval = ioctl_try_fmt_cap(s, f);
+	rval = tvp514x_try_fmt_cap(sd, f);
 	if (rval)
 		return rval;
 
@@ -1052,18 +1023,18 @@ ioctl_s_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
 	return rval;
 }
 
-/**
- * ioctl_g_fmt_cap - V4L2 decoder interface handler for ioctl_g_fmt_cap
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_g_fmt_cap - V4L2 decoder interface handler for tvp514x_g_fmt_cap
+ * @sd: pointer to standard V4L2 sub-device structure
  * @f: pointer to standard V4L2 v4l2_format structure
  *
  * Returns the decoder's current pixel format in the v4l2_format
  * parameter.
  */
 static int
-ioctl_g_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
+tvp514x_g_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 
 	if (f == NULL)
 		return -EINVAL;
@@ -1073,25 +1044,24 @@ ioctl_g_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
 
 	f->fmt.pix = decoder->pix;
 
-	v4l_dbg(1, debug, decoder->client,
-			"Current FMT: bytesperline - %d"
+	v4l2_dbg(1, debug, sd, "Current FMT: bytesperline - %d"
 			"Width - %d, Height - %d",
 			decoder->pix.bytesperline,
 			decoder->pix.width, decoder->pix.height);
 	return 0;
 }
 
-/**
- * ioctl_g_parm - V4L2 decoder interface handler for VIDIOC_G_PARM ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_g_parm - V4L2 decoder interface handler for VIDIOC_G_PARM ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @a: pointer to standard V4L2 VIDIOC_G_PARM ioctl structure
  *
  * Returns the decoder's video CAPTURE parameters.
  */
 static int
-ioctl_g_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a)
+tvp514x_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	struct v4l2_captureparm *cparm;
 	enum tvp514x_std current_std;
 
@@ -1105,7 +1075,7 @@ ioctl_g_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a)
 	a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 
 	/* get the current standard */
-	current_std = tvp514x_get_current_std(decoder);
+	current_std = tvp514x_get_current_std(sd);
 	if (current_std == STD_INVALID)
 		return -EINVAL;
 
@@ -1119,18 +1089,18 @@ ioctl_g_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a)
 	return 0;
 }
 
-/**
- * ioctl_s_parm - V4L2 decoder interface handler for VIDIOC_S_PARM ioctl
- * @s: pointer to standard V4L2 device structure
+/*
+ * tvp514x_s_parm - V4L2 decoder interface handler for VIDIOC_S_PARM ioctl
+ * @sd: pointer to standard V4L2 sub-device structure
  * @a: pointer to standard V4L2 VIDIOC_S_PARM ioctl structure
  *
  * Configures the decoder to use the input parameters, if possible. If
  * not possible, returns the appropriate error code.
  */
 static int
-ioctl_s_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a)
+tvp514x_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a)
 {
-	struct tvp514x_decoder *decoder = s->priv;
+	struct tvp514x_decoder *decoder = to_decoder(sd);
 	struct v4l2_fract *timeperframe;
 	enum tvp514x_std current_std;
 
@@ -1143,7 +1113,7 @@ ioctl_s_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a)
 	timeperframe = &a->parm.capture.timeperframe;
 
 	/* get the current standard */
-	current_std = tvp514x_get_current_std(decoder);
+	current_std = tvp514x_get_current_std(sd);
 	if (current_std == STD_INVALID)
 		return -EINVAL;
 
@@ -1155,112 +1125,59 @@ ioctl_s_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a)
 	return 0;
 }
 
-/**
- * ioctl_g_ifparm - V4L2 decoder interface handler for vidioc_int_g_ifparm_num
- * @s: pointer to standard V4L2 device structure
- * @p: pointer to standard V4L2 vidioc_int_g_ifparm_num ioctl structure
- *
- * Gets slave interface parameters.
- * Calculates the required xclk value to support the requested
- * clock parameters in p. This value is returned in the p
- * parameter.
- */
-static int ioctl_g_ifparm(struct v4l2_int_device *s, struct v4l2_ifparm *p)
-{
-	struct tvp514x_decoder *decoder = s->priv;
-	int rval;
-
-	if (p == NULL)
-		return -EINVAL;
-
-	if (NULL == decoder->pdata->ifparm)