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path: root/drivers/media/i2c/ths7303.c
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Diffstat (limited to 'drivers/media/i2c/ths7303.c')
-rw-r--r--drivers/media/i2c/ths7303.c81
1 files changed, 14 insertions, 67 deletions
diff --git a/drivers/media/i2c/ths7303.c b/drivers/media/i2c/ths7303.c
index c4339556a2e..0a2dacbd7a6 100644
--- a/drivers/media/i2c/ths7303.c
+++ b/drivers/media/i2c/ths7303.c
@@ -26,7 +26,6 @@
#include <linux/slab.h>
#include <media/ths7303.h>
-#include <media/v4l2-chip-ident.h>
#include <media/v4l2-device.h>
#define THS7303_CHANNEL_1 1
@@ -35,11 +34,10 @@
struct ths7303_state {
struct v4l2_subdev sd;
- struct ths7303_platform_data pdata;
+ const struct ths7303_platform_data *pdata;
struct v4l2_bt_timings bt;
int std_id;
int stream_on;
- int driver_data;
};
enum ths7303_filter_mode {
@@ -89,7 +87,7 @@ int ths7303_setval(struct v4l2_subdev *sd, enum ths7303_filter_mode mode)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ths7303_state *state = to_state(sd);
- struct ths7303_platform_data *pdata = &state->pdata;
+ const struct ths7303_platform_data *pdata = state->pdata;
u8 val, sel = 0;
int err, disable = 0;
@@ -212,15 +210,6 @@ static int ths7303_s_dv_timings(struct v4l2_subdev *sd,
return ths7303_config(sd);
}
-static int ths7303_g_chip_ident(struct v4l2_subdev *sd,
- struct v4l2_dbg_chip_ident *chip)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct ths7303_state *state = to_state(sd);
-
- return v4l2_chip_ident_i2c_client(client, chip, state->driver_data, 0);
-}
-
static const struct v4l2_subdev_video_ops ths7303_video_ops = {
.s_stream = ths7303_s_stream,
.s_std_output = ths7303_s_std_output,
@@ -232,13 +221,6 @@ static const struct v4l2_subdev_video_ops ths7303_video_ops = {
static int ths7303_g_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *reg)
{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- if (!v4l2_chip_match_i2c_client(client, &reg->match))
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
reg->size = 1;
reg->val = ths7303_read(sd, reg->reg);
return 0;
@@ -247,13 +229,6 @@ static int ths7303_g_register(struct v4l2_subdev *sd,
static int ths7303_s_register(struct v4l2_subdev *sd,
const struct v4l2_dbg_register *reg)
{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- if (!v4l2_chip_match_i2c_client(client, &reg->match))
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
ths7303_write(sd, reg->reg, reg->val);
return 0;
}
@@ -340,7 +315,6 @@ static int ths7303_log_status(struct v4l2_subdev *sd)
}
static const struct v4l2_subdev_core_ops ths7303_core_ops = {
- .g_chip_ident = ths7303_g_chip_ident,
.log_status = ths7303_log_status,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = ths7303_g_register,
@@ -353,32 +327,6 @@ static const struct v4l2_subdev_ops ths7303_ops = {
.video = &ths7303_video_ops,
};
-static int ths7303_setup(struct v4l2_subdev *sd)
-{
- struct ths7303_state *state = to_state(sd);
- struct ths7303_platform_data *pdata = &state->pdata;
- int ret;
- u8 mask;
-
- state->stream_on = pdata->init_enable;
-
- mask = state->stream_on ? 0xff : 0xf8;
-
- ret = ths7303_write(sd, THS7303_CHANNEL_1, pdata->ch_1 & mask);
- if (ret)
- return ret;
-
- ret = ths7303_write(sd, THS7303_CHANNEL_2, pdata->ch_2 & mask);
- if (ret)
- return ret;
-
- ret = ths7303_write(sd, THS7303_CHANNEL_3, pdata->ch_3 & mask);
- if (ret)
- return ret;
-
- return 0;
-}
-
static int ths7303_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -386,6 +334,11 @@ static int ths7303_probe(struct i2c_client *client,
struct ths7303_state *state;
struct v4l2_subdev *sd;
+ if (pdata == NULL) {
+ dev_err(&client->dev, "No platform data\n");
+ return -EINVAL;
+ }
+
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
@@ -397,20 +350,14 @@ static int ths7303_probe(struct i2c_client *client,
if (!state)
return -ENOMEM;
- if (!pdata)
- v4l_warn(client, "No platform data, using default data!\n");
- else
- state->pdata = *pdata;
-
+ state->pdata = pdata;
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &ths7303_ops);
- /* store the driver data to differntiate the chip */
- state->driver_data = (int)id->driver_data;
-
- if (ths7303_setup(sd) < 0) {
- v4l_err(client, "init failed\n");
- return -EIO;
+ /* set to default 480I_576I filter mode */
+ if (ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I) < 0) {
+ v4l_err(client, "Setting to 480I_576I filter mode failed!\n");
+ return -EINVAL;
}
return 0;
@@ -426,8 +373,8 @@ static int ths7303_remove(struct i2c_client *client)
}
static const struct i2c_device_id ths7303_id[] = {
- {"ths7303", V4L2_IDENT_THS7303},
- {"ths7353", V4L2_IDENT_THS7353},
+ {"ths7303", 0},
+ {"ths7353", 0},
{},
};