V4L/DVB (12535): soc-camera: remove .init() and .release() methods from struct soc_camera_ops

Remove unneeded soc-camera operations, this also makes the soc-camera API to
v4l2 subdevices thinner.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

6 files changed, 26 insertions, 82 deletions

diff --git a/drivers/media/video/mt9m001.c b/drivers/media/video/mt9m001.c
index e8cf56189ef1..4b394798a293 100644
--- a/drivers/media/video/mt9m001.c
+++ b/drivers/media/video/mt9m001.c
@@ -122,9 +122,8 @@ static int reg_clear(struct i2c_client *client, const u8 reg,
         return reg_write(client, reg, ret & ~data);
 }
 
-static int mt9m001_init(struct soc_camera_device *icd)
+static int mt9m001_init(struct i2c_client *client)
 {
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
         int ret;
 
         dev_dbg(&client->dev, "%s\n", __func__);
@@ -144,16 +143,6 @@ static int mt9m001_init(struct soc_camera_device *icd)
         return ret;
 }
 
-static int mt9m001_release(struct soc_camera_device *icd)
-{
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
-
-        /* Disable the chip */
-        reg_write(client, MT9M001_OUTPUT_CONTROL, 0);
-
-        return 0;
-}
-
 static int mt9m001_s_stream(struct v4l2_subdev *sd, int enable)
 {
         struct i2c_client *client = sd->priv;
@@ -446,8 +435,6 @@ static const struct v4l2_queryctrl mt9m001_controls[] = {
 };
 
 static struct soc_camera_ops mt9m001_ops = {
-        .init                   = mt9m001_init,
-        .release                = mt9m001_release,
         .set_bus_param          = mt9m001_set_bus_param,
         .query_bus_param        = mt9m001_query_bus_param,
         .controls               = mt9m001_controls,
@@ -581,6 +568,7 @@ static int mt9m001_video_probe(struct soc_camera_device *icd,
         struct soc_camera_link *icl = to_soc_camera_link(icd);
         s32 data;
         unsigned long flags;
+        int ret;
 
         /* We must have a parent by now. And it cannot be a wrong one.
          * So this entire test is completely redundant. */
@@ -637,7 +625,11 @@ static int mt9m001_video_probe(struct soc_camera_device *icd,
         dev_info(&client->dev, "Detected a MT9M001 chip ID %x (%s)\n", data,
                  data == 0x8431 ? "C12STM" : "C12ST");
 
-        return 0;
+        ret = mt9m001_init(client);
+        if (ret < 0)
+                dev_err(&client->dev, "Failed to initialise the camera\n");
+
+        return ret;
 }
 
 static void mt9m001_video_remove(struct soc_camera_device *icd)
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index 920dd53c4cfa..186902f9be2e 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -672,13 +672,9 @@ static const struct v4l2_queryctrl mt9m111_controls[] = {
 };
 
 static int mt9m111_resume(struct soc_camera_device *icd);
-static int mt9m111_init(struct soc_camera_device *icd);
-static int mt9m111_release(struct soc_camera_device *icd);
 
 static struct soc_camera_ops mt9m111_ops = {
-        .init                   = mt9m111_init,
         .resume                 = mt9m111_resume,
-        .release                = mt9m111_release,
         .query_bus_param        = mt9m111_query_bus_param,
         .set_bus_param          = mt9m111_set_bus_param,
         .controls               = mt9m111_controls,
@@ -880,9 +876,8 @@ static int mt9m111_resume(struct soc_camera_device *icd)
         return ret;
 }
 
-static int mt9m111_init(struct soc_camera_device *icd)
+static int mt9m111_init(struct i2c_client *client)
 {
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
         struct mt9m111 *mt9m111 = to_mt9m111(client);
         int ret;
 
@@ -899,22 +894,6 @@ static int mt9m111_init(struct soc_camera_device *icd)
         return ret;
 }
 
-static int mt9m111_release(struct soc_camera_device *icd)
-{
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
-        struct mt9m111 *mt9m111 = to_mt9m111(client);
-        int ret;
-
-        ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
-        if (!ret)
-                mt9m111->powered = 0;
-
-        if (ret < 0)
-                dev_err(&client->dev, "mt9m11x release failed: %d\n", ret);
-
-        return ret;
-}
-
 /*
  * Interface active, can use i2c. If it fails, it can indeed mean, that
  * this wasn't our capture interface, so, we wait for the right one
@@ -934,10 +913,13 @@ static int mt9m111_video_probe(struct soc_camera_device *icd,
             to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
                 return -ENODEV;
 
-        ret = mt9m111_enable(client);
-        if (ret)
-                goto ei2c;
-        ret = mt9m111_reset(client);
+        mt9m111->autoexposure = 1;
+        mt9m111->autowhitebalance = 1;
+
+        mt9m111->swap_rgb_even_odd = 1;
+        mt9m111->swap_rgb_red_blue = 1;
+
+        ret = mt9m111_init(client);
         if (ret)
                 goto ei2c;
 
@@ -962,12 +944,6 @@ static int mt9m111_video_probe(struct soc_camera_device *icd,
 
         dev_info(&client->dev, "Detected a MT9M11x chip ID %x\n", data);
 
-        mt9m111->autoexposure = 1;
-        mt9m111->autowhitebalance = 1;
-
-        mt9m111->swap_rgb_even_odd = 1;
-        mt9m111->swap_rgb_red_blue = 1;
-
 ei2c:
         return ret;
 }
diff --git a/drivers/media/video/mt9t031.c b/drivers/media/video/mt9t031.c
index f234ba602049..9a6489689382 100644
--- a/drivers/media/video/mt9t031.c
+++ b/drivers/media/video/mt9t031.c
@@ -163,20 +163,6 @@ static int mt9t031_disable(struct i2c_client *client)
         return 0;
 }
 
-static int mt9t031_init(struct soc_camera_device *icd)
-{
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
-
-        return mt9t031_idle(client);
-}
-
-static int mt9t031_release(struct soc_camera_device *icd)
-{
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
-
-        return mt9t031_disable(client);
-}
-
 static int mt9t031_s_stream(struct v4l2_subdev *sd, int enable)
 {
         struct i2c_client *client = sd->priv;
@@ -539,8 +525,6 @@ static const struct v4l2_queryctrl mt9t031_controls[] = {
 };
 
 static struct soc_camera_ops mt9t031_ops = {
-        .init                   = mt9t031_init,
-        .release                = mt9t031_release,
         .set_bus_param          = mt9t031_set_bus_param,
         .query_bus_param        = mt9t031_query_bus_param,
         .controls               = mt9t031_controls,
@@ -689,6 +673,7 @@ static int mt9t031_video_probe(struct i2c_client *client)
         struct soc_camera_device *icd = client->dev.platform_data;
         struct mt9t031 *mt9t031 = to_mt9t031(client);
         s32 data;
+        int ret;
 
         /* Enable the chip */
         data = reg_write(client, MT9T031_CHIP_ENABLE, 1);
@@ -711,7 +696,11 @@ static int mt9t031_video_probe(struct i2c_client *client)
 
         dev_info(&client->dev, "Detected a MT9T031 chip ID %x\n", data);
 
-        return 0;
+        ret = mt9t031_idle(client);
+        if (ret < 0)
+                dev_err(&client->dev, "Failed to initialise the camera\n");
+
+        return ret;
 }
 
 static struct v4l2_subdev_core_ops mt9t031_subdev_core_ops = {
diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
index 35ea0ddd0715..5c47b55823c8 100644
--- a/drivers/media/video/mt9v022.c
+++ b/drivers/media/video/mt9v022.c
@@ -138,9 +138,8 @@ static int reg_clear(struct i2c_client *client, const u8 reg,
         return reg_write(client, reg, ret & ~data);
 }
 
-static int mt9v022_init(struct soc_camera_device *icd)
+static int mt9v022_init(struct i2c_client *client)
 {
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
         struct mt9v022 *mt9v022 = to_mt9v022(client);
         int ret;
 
@@ -532,7 +531,6 @@ static const struct v4l2_queryctrl mt9v022_controls[] = {
 };
 
 static struct soc_camera_ops mt9v022_ops = {
-        .init                   = mt9v022_init,
         .set_bus_param          = mt9v022_set_bus_param,
         .query_bus_param        = mt9v022_query_bus_param,
         .controls               = mt9v022_controls,
@@ -751,6 +749,10 @@ static int mt9v022_video_probe(struct soc_camera_device *icd,
                  data, mt9v022->model == V4L2_IDENT_MT9V022IX7ATM ?
                  "monochrome" : "colour");
 
+        ret = mt9v022_init(client);
+        if (ret < 0)
+                dev_err(&client->dev, "Failed to initialise the camera\n");
+
 ei2c:
         return ret;
 }
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index 86e0648f65a0..27921162514c 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -385,12 +385,6 @@ static int soc_camera_open(struct file *file)
                         goto eiciadd;
                 }
 
-                if (icd->ops->init) {
-                        ret = icd->ops->init(icd);
-                        if (ret < 0)
-                                goto einit;
-                }
-
                 /* Try to configure with default parameters */
                 ret = soc_camera_set_fmt(icf, &f);
                 if (ret < 0)
@@ -411,9 +405,6 @@ static int soc_camera_open(struct file *file)
          * and use_count == 1
          */
 esfmt:
-        if (icd->ops->release)
-                icd->ops->release(icd);
-einit:
         ici->ops->remove(icd);
 eiciadd:
         if (icl->power)
@@ -438,8 +429,6 @@ static int soc_camera_close(struct file *file)
         if (!icd->use_count) {
                 struct soc_camera_link *icl = to_soc_camera_link(icd);
 
-                if (icd->ops->release)
-                        icd->ops->release(icd);
                 ici->ops->remove(icd);
                 if (icl->power)
                         icl->power(icd->pdev, 0);
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index 3185e8daaa0a..f95cc4a2d9af 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -191,12 +191,8 @@ struct soc_camera_format_xlate {
 struct soc_camera_ops {
         int (*suspend)(struct soc_camera_device *, pm_message_t state);
         int (*resume)(struct soc_camera_device *);
-        int (*init)(struct soc_camera_device *);
-        int (*release)(struct soc_camera_device *);
         unsigned long (*query_bus_param)(struct soc_camera_device *);
         int (*set_bus_param)(struct soc_camera_device *, unsigned long);
-        int (*get_chip_id)(struct soc_camera_device *,
-                           struct v4l2_dbg_chip_ident *);
         int (*enum_input)(struct soc_camera_device *, struct v4l2_input *);
         const struct v4l2_queryctrl *controls;
         int num_controls;