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>

1 files changed, 349 insertions, 526 deletions

diff --git a/drivers/media/video/tvp514x.c b/drivers/media/video/tvp514x.c
index 3750f7fadb12..c8386e2f7a99 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)
-                return -EINVAL;
-
-        rval = decoder->pdata->ifparm(p);
-        if (rval) {
-                v4l_err(decoder->client, "g_ifparm.Err[%d]\n", rval);
-                return rval;
-        }
-
-        p->u.bt656.clock_curr = TVP514X_XCLK_BT656;
-
-        return 0;
-}
-
-/**
- * ioctl_g_priv - V4L2 decoder interface handler for vidioc_int_g_priv_num
- * @s: pointer to standard V4L2 device structure
- * @p: void pointer to hold decoder's private data address
- *
- * Returns device's (decoder's) private data area address in p parameter
- */
-static int ioctl_g_priv(struct v4l2_int_device *s, void *p)
-{
-        struct tvp514x_decoder *decoder = s->priv;
-
-        if (NULL == decoder->pdata->priv_data_set)
-                return -EINVAL;
-
-        return decoder->pdata->priv_data_set(p);
-}
-
-/**
- * ioctl_s_power - V4L2 decoder interface handler for vidioc_int_s_power_num
- * @s: pointer to standard V4L2 device structure
- * @on: power state to which device is to be set
+/*
+ * tvp514x_s_stream - V4L2 decoder interface handler for vidioc_int_s_power_num
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @enable: streaming enable or disable
  *
- * Sets devices power state to requrested state, if possible.
+ * Sets streaming to enable or disable, if possible.
  */
-static int ioctl_s_power(struct v4l2_int_device *s, enum v4l2_power on)
+static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable)
 {
-        struct tvp514x_decoder *decoder = s->priv;
         int err = 0;
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+        struct tvp514x_decoder *decoder = to_decoder(sd);
 
-        switch (on) {
-        case V4L2_POWER_OFF:
-                /* Power Down Sequence */
-                err =
-                    tvp514x_write_reg(decoder->client, REG_OPERATION_MODE,
-                                        0x01);
-                /* Disable mux for TVP5146/47 decoder data path */
-                if (decoder->pdata->power_set)
-                        err |= decoder->pdata->power_set(on);
-                decoder->state = STATE_NOT_DETECTED;
-                break;
+        if (decoder->streaming == enable)
+                return 0;
 
-        case V4L2_POWER_STANDBY:
-                if (decoder->pdata->power_set)
-                        err = decoder->pdata->power_set(on);
+        switch (enable) {
+        case 0:
+        {
+                /* Power Down Sequence */
+                err = tvp514x_write_reg(sd, REG_OPERATION_MODE, 0x01);
+                if (err) {
+                        v4l2_err(sd, "Unable to turn off decoder\n");
+                        return err;
+                }
+                decoder->streaming = enable;
                 break;
+        }
+        case 1:
+        {
+                struct tvp514x_reg *int_seq = (struct tvp514x_reg *)
+                                client->driver->id_table->driver_data;
 
-        case V4L2_POWER_ON:
-                /* Enable mux for TVP5146/47 decoder data path */
-                if ((decoder->pdata->power_set) &&
-                                (decoder->state == STATE_NOT_DETECTED)) {
-                        int i;
-                        struct tvp514x_init_seq *int_seq =
-                                (struct tvp514x_init_seq *)
-                                decoder->id->driver_data;
-
-                        err = decoder->pdata->power_set(on);
-
-                        /* Power Up Sequence */
-                        for (i = 0; i < int_seq->no_regs; i++) {
-                                err |= tvp514x_write_reg(decoder->client,
-                                                int_seq->init_reg_seq[i].reg,
-                                                int_seq->init_reg_seq[i].val);
-                        }
-                        /* Detect the sensor is not already detected */
-                        err |= tvp514x_detect(decoder);
-                        if (err) {
-                                v4l_err(decoder->client,
-                                                "Unable to detect decoder\n");
-                                return err;
-                        }
+                /* Power Up Sequence */
+                err = tvp514x_write_regs(sd, int_seq);
+                if (err) {
+                        v4l2_err(sd, "Unable to turn on decoder\n");
+                        return err;
+                }
+                /* Detect if not already detected */
+                err = tvp514x_detect(sd, decoder);
+                if (err) {
+                        v4l2_err(sd, "Unable to detect decoder\n");
+                        return err;
                 }
-                err |= tvp514x_configure(decoder);
+                err = tvp514x_configure(sd, decoder);
+                if (err) {
+                        v4l2_err(sd, "Unable to configure decoder\n");
+                        return err;
+                }
+                decoder->streaming = enable;
                 break;
-
+        }
         default:
                 err = -ENODEV;
                 break;
@@ -1269,93 +1186,37 @@ static int ioctl_s_power(struct v4l2_int_device *s, enum v4l2_power on)
         return err;
 }
 
-/**
- * ioctl_init - V4L2 decoder interface handler for VIDIOC_INT_INIT
- * @s: pointer to standard V4L2 device structure
- *
- * Initialize the decoder device (calls tvp514x_configure())
- */
-static int ioctl_init(struct v4l2_int_device *s)
-{
-        struct tvp514x_decoder *decoder = s->priv;
-
-        /* Set default standard to auto */
-        decoder->tvp514x_regs[REG_VIDEO_STD].val =
-            VIDEO_STD_AUTO_SWITCH_BIT;
-
-        return tvp514x_configure(decoder);
-}
-
-/**
- * ioctl_dev_exit - V4L2 decoder interface handler for vidioc_int_dev_exit_num
- * @s: pointer to standard V4L2 device structure
- *
- * Delinitialise the dev. at slave detach. The complement of ioctl_dev_init.
- */
-static int ioctl_dev_exit(struct v4l2_int_device *s)
-{
-        return 0;
-}
-
-/**
- * ioctl_dev_init - V4L2 decoder interface handler for vidioc_int_dev_init_num
- * @s: pointer to standard V4L2 device structure
- *
- * Initialise the device when slave attaches to the master. Returns 0 if
- * TVP5146/47 device could be found, otherwise returns appropriate error.
- */
-static int ioctl_dev_init(struct v4l2_int_device *s)
-{
-        struct tvp514x_decoder *decoder = s->priv;
-        int err;
-
-        err = tvp514x_detect(decoder);
-        if (err < 0) {
-                v4l_err(decoder->client,
-                        "Unable to detect decoder\n");
-                return err;
-        }
-
-        v4l_info(decoder->client,
-                 "chip version 0x%.2x detected\n", decoder->ver);
+static const struct v4l2_subdev_core_ops tvp514x_core_ops = {
+        .queryctrl = tvp514x_queryctrl,
+        .g_ctrl = tvp514x_g_ctrl,
+        .s_ctrl = tvp514x_s_ctrl,
+        .s_std = tvp514x_s_std,
+};
 
-        return 0;
-}
+static const struct v4l2_subdev_video_ops tvp514x_video_ops = {
+        .s_routing = tvp514x_s_routing,
+        .querystd = tvp514x_querystd,
+        .enum_fmt = tvp514x_enum_fmt_cap,
+        .g_fmt = tvp514x_g_fmt_cap,
+        .try_fmt = tvp514x_try_fmt_cap,
+        .s_fmt = tvp514x_s_fmt_cap,
+        .g_parm = tvp514x_g_parm,
+        .s_parm = tvp514x_s_parm,
+        .s_stream = tvp514x_s_stream,
+};
 
-static struct v4l2_int_ioctl_desc tvp514x_ioctl_desc[] = {
-        {vidioc_int_dev_init_num, (v4l2_int_ioctl_func*) ioctl_dev_init},
-        {vidioc_int_dev_exit_num, (v4l2_int_ioctl_func*) ioctl_dev_exit},
-        {vidioc_int_s_power_num, (v4l2_int_ioctl_func*) ioctl_s_power},
-        {vidioc_int_g_priv_num, (v4l2_int_ioctl_func*) ioctl_g_priv},
-        {vidioc_int_g_ifparm_num, (v4l2_int_ioctl_func*) ioctl_g_ifparm},
-        {vidioc_int_init_num, (v4l2_int_ioctl_func*) ioctl_init},
-        {vidioc_int_enum_fmt_cap_num,
-         (v4l2_int_ioctl_func *) ioctl_enum_fmt_cap},
-        {vidioc_int_try_fmt_cap_num,
-         (v4l2_int_ioctl_func *) ioctl_try_fmt_cap},
-        {vidioc_int_g_fmt_cap_num,
-         (v4l2_int_ioctl_func *) ioctl_g_fmt_cap},
-        {vidioc_int_s_fmt_cap_num,
-         (v4l2_int_ioctl_func *) ioctl_s_fmt_cap},
-        {vidioc_int_g_parm_num, (v4l2_int_ioctl_func *) ioctl_g_parm},
-        {vidioc_int_s_parm_num, (v4l2_int_ioctl_func *) ioctl_s_parm},
-        {vidioc_int_queryctrl_num,
-         (v4l2_int_ioctl_func *) ioctl_queryctrl},
-        {vidioc_int_g_ctrl_num, (v4l2_int_ioctl_func *) ioctl_g_ctrl},
-        {vidioc_int_s_ctrl_num, (v4l2_int_ioctl_func *) ioctl_s_ctrl},
-        {vidioc_int_querystd_num, (v4l2_int_ioctl_func *) ioctl_querystd},
-        {vidioc_int_s_std_num, (v4l2_int_ioctl_func *) ioctl_s_std},
-        {vidioc_int_s_video_routing_num,
-                (v4l2_int_ioctl_func *) ioctl_s_routing},
+static const struct v4l2_subdev_ops tvp514x_ops = {
+        .core = &tvp514x_core_ops,
+        .video = &tvp514x_video_ops,
 };
 
 static struct tvp514x_decoder tvp514x_dev = {
-        .state = STATE_NOT_DETECTED,
+        .streaming = 0,
 
         .fmt_list = tvp514x_fmt_list,
         .num_fmts = ARRAY_SIZE(tvp514x_fmt_list),
 
-        .pix = {                /* Default to NTSC 8-bit YUV 422 */
+        .pix = {/* Default to NTSC 8-bit YUV 422 */
                 .width = NTSC_NUM_ACTIVE_PIXELS,
                 .height = NTSC_NUM_ACTIVE_LINES,
                 .pixelformat = V4L2_PIX_FMT_UYVY,
@@ -1369,20 +1230,13 @@ static struct tvp514x_decoder tvp514x_dev = {
         .current_std = STD_NTSC_MJ,
         .std_list = tvp514x_std_list,
         .num_stds = ARRAY_SIZE(tvp514x_std_list),
-        .v4l2_int_device = {
-                .module = THIS_MODULE,
-                .name = TVP514X_MODULE_NAME,
-                .type = v4l2_int_type_slave,
-        },
-        .tvp514x_slave = {
-                .ioctls = tvp514x_ioctl_desc,
-                .num_ioctls = ARRAY_SIZE(tvp514x_ioctl_desc),
-        },
+
 };
 
-/**
+/*
  * tvp514x_probe - decoder driver i2c probe handler
  * @client: i2c driver client device structure
+ * @id: i2c driver id table
  *
  * Register decoder as an i2c client device and V4L2
  * device.
@@ -1391,82 +1245,71 @@ static int
 tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
         struct tvp514x_decoder *decoder;
-        int err;
+        struct v4l2_subdev *sd;
 
         /* Check if the adapter supports the needed features */
         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
                 return -EIO;
 
+        if (!client->dev.platform_data) {
+                v4l2_err(client, "No platform data!!\n");
+                return -ENODEV;
+        }
+
         decoder = kzalloc(sizeof(*decoder), GFP_KERNEL);
         if (!decoder)
                 return -ENOMEM;
 
-        if (!client->dev.platform_data) {
-                v4l_err(client, "No platform data!!\n");
-                err = -ENODEV;
-                goto out_free;
-        }
-
+        /*
+         * Initialize the tvp514x_decoder with default configuration
+         */
         *decoder = tvp514x_dev;
-        decoder->v4l2_int_device.priv = decoder;
-        decoder->pdata = client->dev.platform_data;
-        decoder->v4l2_int_device.u.slave = &decoder->tvp514x_slave;
+        /* Copy default register configuration */
         memcpy(decoder->tvp514x_regs, tvp514x_reg_list_default,
                         sizeof(tvp514x_reg_list_default));
+
+        /*
+         * Copy board specific information here
+         */
+        decoder->pdata = client->dev.platform_data;
+
         /*
          * Fetch platform specific data, and configure the
          * tvp514x_reg_list[] accordingly. Since this is one
          * time configuration, no need to preserve.
          */
         decoder->tvp514x_regs[REG_OUTPUT_FORMATTER2].val |=
-                        (decoder->pdata->clk_polarity << 1);
+                (decoder->pdata->clk_polarity << 1);
         decoder->tvp514x_regs[REG_SYNC_CONTROL].val |=
-                        ((decoder->pdata->hs_polarity << 2) |
-                        (decoder->pdata->vs_polarity << 3));
-        /*
-         * Save the id data, required for power up sequence
-         */
-        decoder->id = (struct i2c_device_id *)id;
-        /* Attach to Master */
-        strcpy(decoder->v4l2_int_device.u.slave->attach_to,
-                        decoder->pdata->master);
-        decoder->client = client;
-        i2c_set_clientdata(client, decoder);
+                ((decoder->pdata->hs_polarity << 2) |
+                 (decoder->pdata->vs_polarity << 3));
+        /* Set default standard to auto */
+        decoder->tvp514x_regs[REG_VIDEO_STD].val =
+                VIDEO_STD_AUTO_SWITCH_BIT;
 
         /* Register with V4L2 layer as slave device */
-        err = v4l2_int_device_register(&decoder->v4l2_int_device);
-        if (err) {
-                i2c_set_clientdata(client, NULL);
-                v4l_err(client,
-                        "Unable to register to v4l2. Err[%d]\n", err);
-                goto out_free;
-
-        } else
-                v4l_info(client, "Registered to v4l2 master %s!!\n",
-                                decoder->pdata->master);
+        sd = &decoder->sd;
+        v4l2_i2c_subdev_init(sd, client, &tvp514x_ops);
+
+        v4l2_info(sd, "%s decoder driver registered !!\n", sd->name);
+
         return 0;
 
-out_free:
-        kfree(decoder);
-        return err;
 }
 
-/**
+/*
  * tvp514x_remove - decoder driver i2c remove handler
  * @client: i2c driver client device structure
  *
  * Unregister decoder as an i2c client device and V4L2
  * device. Complement of tvp514x_probe().
  */
-static int __exit tvp514x_remove(struct i2c_client *client)
+static int tvp514x_remove(struct i2c_client *client)
 {
-        struct tvp514x_decoder *decoder = i2c_get_clientdata(client);
-
-        if (!client->adapter)
-                return -ENODEV; /* our client isn't attached */
+        struct v4l2_subdev *sd = i2c_get_clientdata(client);
+        struct tvp514x_decoder *decoder = to_decoder(sd);
 
-        v4l2_int_device_unregister(&decoder->v4l2_int_device);
-        i2c_set_clientdata(client, NULL);
+        v4l2_device_unregister_subdev(sd);
         kfree(decoder);
         return 0;
 }
@@ -1485,11 +1328,9 @@ static const struct tvp514x_reg tvp5146_init_reg_seq[] = {
         {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x00},
         {TOK_WRITE, REG_OPERATION_MODE, 0x01},
         {TOK_WRITE, REG_OPERATION_MODE, 0x00},
+        {TOK_TERM, 0, 0},
 };
-static const struct tvp514x_init_seq tvp5146_init = {
-        .no_regs = ARRAY_SIZE(tvp5146_init_reg_seq),
-        .init_reg_seq = tvp5146_init_reg_seq,
-};
+
 /*
  * TVP5147 Init/Power on Sequence
  */
@@ -1512,22 +1353,18 @@ static const struct tvp514x_reg tvp5147_init_reg_seq[] =	{
         {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x00},
         {TOK_WRITE, REG_OPERATION_MODE, 0x01},
         {TOK_WRITE, REG_OPERATION_MODE, 0x00},
+        {TOK_TERM, 0, 0},
 };
-static const struct tvp514x_init_seq tvp5147_init = {
-        .no_regs = ARRAY_SIZE(tvp5147_init_reg_seq),
-        .init_reg_seq = tvp5147_init_reg_seq,
-};
+
 /*
  * TVP5146M2/TVP5147M1 Init/Power on Sequence
  */
 static const struct tvp514x_reg tvp514xm_init_reg_seq[] = {
         {TOK_WRITE, REG_OPERATION_MODE, 0x01},
         {TOK_WRITE, REG_OPERATION_MODE, 0x00},
+        {TOK_TERM, 0, 0},
 };
-static const struct tvp514x_init_seq tvp514xm_init = {
-        .no_regs = ARRAY_SIZE(tvp514xm_init_reg_seq),
-        .init_reg_seq = tvp514xm_init_reg_seq,
-};
+
 /*
  * I2C Device Table -
  *
@@ -1535,48 +1372,34 @@ static const struct tvp514x_init_seq tvp514xm_init = {
  * driver_data - Driver data
  */
 static const struct i2c_device_id tvp514x_id[] = {
-        {"tvp5146", (unsigned long)&tvp5146_init},
-        {"tvp5146m2", (unsigned long)&tvp514xm_init},
-        {"tvp5147", (unsigned long)&tvp5147_init},
-        {"tvp5147m1", (unsigned long)&tvp514xm_init},
+        {"tvp5146", (unsigned long)tvp5146_init_reg_seq},
+        {"tvp5146m2", (unsigned long)tvp514xm_init_reg_seq},
+        {"tvp5147", (unsigned long)tvp5147_init_reg_seq},
+        {"tvp5147m1", (unsigned long)tvp514xm_init_reg_seq},
         {},
 };
 
 MODULE_DEVICE_TABLE(i2c, tvp514x_id);
 
-static struct i2c_driver tvp514x_i2c_driver = {
+static struct i2c_driver tvp514x_driver = {
         .driver = {
-                   .name = TVP514X_MODULE_NAME,
-                   .owner = THIS_MODULE,
-                   },
+                .owner = THIS_MODULE,
+                .name = TVP514X_MODULE_NAME,
+        },
         .probe = tvp514x_probe,
-        .remove = __exit_p(tvp514x_remove),
+        .remove = tvp514x_remove,
         .id_table = tvp514x_id,
 };
 
-/**
- * tvp514x_init
- *
- * Module init function
- */
 static int __init tvp514x_init(void)
 {
-        return i2c_add_driver(&tvp514x_i2c_driver);
+        return i2c_add_driver(&tvp514x_driver);
 }
 
-/**
- * tvp514x_cleanup
- *
- * Module exit function
- */
-static void __exit tvp514x_cleanup(void)
+static void __exit tvp514x_exit(void)
 {
-        i2c_del_driver(&tvp514x_i2c_driver);
+        i2c_del_driver(&tvp514x_driver);
 }
 
 module_init(tvp514x_init);
-module_exit(tvp514x_cleanup);
-
-MODULE_AUTHOR("Texas Instruments");
-MODULE_DESCRIPTION("TVP514X linux decoder driver");
-MODULE_LICENSE("GPL");
+module_exit(tvp514x_exit);