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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-07-20 10:19:50 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 17:03:29 -0300
commit4ec10bacd6bf08de39ebdba9e75060452cc313e0 (patch)
treee1013540a3643ed039cb96609ca1b23dcd2dcf8b /drivers/media/i2c/soc_camera
parent24592adce89805c99eb23d1e37aa8a66aaacee05 (diff)
[media] soc-camera: Add and use soc_camera_power_[on|off]() helper functions
Instead of forcing all soc-camera drivers to go through the mid-layer to handle power management, create soc_camera_power_[on|off]() functions that can be called from the subdev .s_power() operation to manage regulators and platform-specific power handling. This allows non soc-camera hosts to use soc-camera-aware clients. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [g.liakhovetski@gmx.de: fix compile breakage] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/i2c/soc_camera')
-rw-r--r--drivers/media/i2c/soc_camera/imx074.c9
-rw-r--r--drivers/media/i2c/soc_camera/mt9m001.c9
-rw-r--r--drivers/media/i2c/soc_camera/mt9m111.c52
-rw-r--r--drivers/media/i2c/soc_camera/mt9t031.c11
-rw-r--r--drivers/media/i2c/soc_camera/mt9t112.c9
-rw-r--r--drivers/media/i2c/soc_camera/mt9v022.c9
-rw-r--r--drivers/media/i2c/soc_camera/ov2640.c9
-rw-r--r--drivers/media/i2c/soc_camera/ov5642.c10
-rw-r--r--drivers/media/i2c/soc_camera/ov6650.c9
-rw-r--r--drivers/media/i2c/soc_camera/ov772x.c9
-rw-r--r--drivers/media/i2c/soc_camera/ov9640.c10
-rw-r--r--drivers/media/i2c/soc_camera/ov9740.c24
-rw-r--r--drivers/media/i2c/soc_camera/rj54n1cb0c.c9
-rw-r--r--drivers/media/i2c/soc_camera/tw9910.c9
14 files changed, 160 insertions, 28 deletions
diff --git a/drivers/media/i2c/soc_camera/imx074.c b/drivers/media/i2c/soc_camera/imx074.c
index 351e9bafe8fe..ade19873ed83 100644
--- a/drivers/media/i2c/soc_camera/imx074.c
+++ b/drivers/media/i2c/soc_camera/imx074.c
@@ -268,6 +268,14 @@ static int imx074_g_chip_ident(struct v4l2_subdev *sd,
return 0;
}
+static int imx074_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
static int imx074_g_mbus_config(struct v4l2_subdev *sd,
struct v4l2_mbus_config *cfg)
{
@@ -292,6 +300,7 @@ static struct v4l2_subdev_video_ops imx074_subdev_video_ops = {
static struct v4l2_subdev_core_ops imx074_subdev_core_ops = {
.g_chip_ident = imx074_g_chip_ident,
+ .s_power = imx074_s_power,
};
static struct v4l2_subdev_ops imx074_subdev_ops = {
diff --git a/drivers/media/i2c/soc_camera/mt9m001.c b/drivers/media/i2c/soc_camera/mt9m001.c
index 00583f5fd26b..cd71230c51a9 100644
--- a/drivers/media/i2c/soc_camera/mt9m001.c
+++ b/drivers/media/i2c/soc_camera/mt9m001.c
@@ -377,6 +377,14 @@ static int mt9m001_s_register(struct v4l2_subdev *sd,
}
#endif
+static int mt9m001_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
static int mt9m001_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct mt9m001 *mt9m001 = container_of(ctrl->handler,
@@ -566,6 +574,7 @@ static struct v4l2_subdev_core_ops mt9m001_subdev_core_ops = {
.g_register = mt9m001_g_register,
.s_register = mt9m001_s_register,
#endif
+ .s_power = mt9m001_s_power,
};
static int mt9m001_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
diff --git a/drivers/media/i2c/soc_camera/mt9m111.c b/drivers/media/i2c/soc_camera/mt9m111.c
index 863d722dda06..e555f7739691 100644
--- a/drivers/media/i2c/soc_camera/mt9m111.c
+++ b/drivers/media/i2c/soc_camera/mt9m111.c
@@ -831,10 +831,37 @@ static int mt9m111_video_probe(struct i2c_client *client)
return v4l2_ctrl_handler_setup(&mt9m111->hdl);
}
+static int mt9m111_power_on(struct mt9m111 *mt9m111)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+ int ret;
+
+ ret = soc_camera_power_on(&client->dev, icl);
+ if (ret < 0)
+ return ret;
+
+ ret = mt9m111_resume(mt9m111);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to resume the sensor: %d\n", ret);
+ soc_camera_power_off(&client->dev, icl);
+ }
+
+ return ret;
+}
+
+static void mt9m111_power_off(struct mt9m111 *mt9m111)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ mt9m111_suspend(mt9m111);
+ soc_camera_power_off(&client->dev, icl);
+}
+
static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
{
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
- struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret = 0;
mutex_lock(&mt9m111->power_lock);
@@ -844,23 +871,18 @@ static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
* update the power state.
*/
if (mt9m111->power_count == !on) {
- if (on) {
- ret = mt9m111_resume(mt9m111);
- if (ret) {
- dev_err(&client->dev,
- "Failed to resume the sensor: %d\n", ret);
- goto out;
- }
- } else {
- mt9m111_suspend(mt9m111);
- }
+ if (on)
+ ret = mt9m111_power_on(mt9m111);
+ else
+ mt9m111_power_off(mt9m111);
}
- /* Update the power count. */
- mt9m111->power_count += on ? 1 : -1;
- WARN_ON(mt9m111->power_count < 0);
+ if (!ret) {
+ /* Update the power count. */
+ mt9m111->power_count += on ? 1 : -1;
+ WARN_ON(mt9m111->power_count < 0);
+ }
-out:
mutex_unlock(&mt9m111->power_lock);
return ret;
}
diff --git a/drivers/media/i2c/soc_camera/mt9t031.c b/drivers/media/i2c/soc_camera/mt9t031.c
index 1415074138a5..9666e202e395 100644
--- a/drivers/media/i2c/soc_camera/mt9t031.c
+++ b/drivers/media/i2c/soc_camera/mt9t031.c
@@ -616,12 +616,19 @@ static struct device_type mt9t031_dev_type = {
static int mt9t031_s_power(struct v4l2_subdev *sd, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
struct video_device *vdev = soc_camera_i2c_to_vdev(client);
+ int ret;
- if (on)
+ if (on) {
+ ret = soc_camera_power_on(&client->dev, icl);
+ if (ret < 0)
+ return ret;
vdev->dev.type = &mt9t031_dev_type;
- else
+ } else {
vdev->dev.type = NULL;
+ soc_camera_power_off(&client->dev, icl);
+ }
return 0;
}
diff --git a/drivers/media/i2c/soc_camera/mt9t112.c b/drivers/media/i2c/soc_camera/mt9t112.c
index e1ae46a7ee96..624ceec44e18 100644
--- a/drivers/media/i2c/soc_camera/mt9t112.c
+++ b/drivers/media/i2c/soc_camera/mt9t112.c
@@ -776,12 +776,21 @@ static int mt9t112_s_register(struct v4l2_subdev *sd,
}
#endif
+static int mt9t112_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
static struct v4l2_subdev_core_ops mt9t112_subdev_core_ops = {
.g_chip_ident = mt9t112_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = mt9t112_g_register,
.s_register = mt9t112_s_register,
#endif
+ .s_power = mt9t112_s_power,
};
diff --git a/drivers/media/i2c/soc_camera/mt9v022.c b/drivers/media/i2c/soc_camera/mt9v022.c
index 72479247522a..5f09cb702bf7 100644
--- a/drivers/media/i2c/soc_camera/mt9v022.c
+++ b/drivers/media/i2c/soc_camera/mt9v022.c
@@ -445,6 +445,14 @@ static int mt9v022_s_register(struct v4l2_subdev *sd,
}
#endif
+static int mt9v022_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
static int mt9v022_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct mt9v022 *mt9v022 = container_of(ctrl->handler,
@@ -664,6 +672,7 @@ static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = {
.g_register = mt9v022_g_register,
.s_register = mt9v022_s_register,
#endif
+ .s_power = mt9v022_s_power,
};
static int mt9v022_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
diff --git a/drivers/media/i2c/soc_camera/ov2640.c b/drivers/media/i2c/soc_camera/ov2640.c
index 7c44d1fe3c87..16ed091c702d 100644
--- a/drivers/media/i2c/soc_camera/ov2640.c
+++ b/drivers/media/i2c/soc_camera/ov2640.c
@@ -742,6 +742,14 @@ static int ov2640_s_register(struct v4l2_subdev *sd,
}
#endif
+static int ov2640_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
/* Select the nearest higher resolution for capture */
static const struct ov2640_win_size *ov2640_select_win(u32 *width, u32 *height)
{
@@ -988,6 +996,7 @@ static struct v4l2_subdev_core_ops ov2640_subdev_core_ops = {
.g_register = ov2640_g_register,
.s_register = ov2640_s_register,
#endif
+ .s_power = ov2640_s_power,
};
static int ov2640_g_mbus_config(struct v4l2_subdev *sd,
diff --git a/drivers/media/i2c/soc_camera/ov5642.c b/drivers/media/i2c/soc_camera/ov5642.c
index 0bc93313d37a..61824c6911d5 100644
--- a/drivers/media/i2c/soc_camera/ov5642.c
+++ b/drivers/media/i2c/soc_camera/ov5642.c
@@ -933,13 +933,17 @@ static int ov5642_g_mbus_config(struct v4l2_subdev *sd,
static int ov5642_s_power(struct v4l2_subdev *sd, int on)
{
- struct i2c_client *client;
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
int ret;
if (!on)
- return 0;
+ return soc_camera_power_off(&client->dev, icl);
+
+ ret = soc_camera_power_on(&client->dev, icl);
+ if (ret < 0)
+ return ret;
- client = v4l2_get_subdevdata(sd);
ret = ov5642_write_array(client, ov5642_default_regs_init);
if (!ret)
ret = ov5642_set_resolution(sd);
diff --git a/drivers/media/i2c/soc_camera/ov6650.c b/drivers/media/i2c/soc_camera/ov6650.c
index 3e028b1970dd..12d57a5dd810 100644
--- a/drivers/media/i2c/soc_camera/ov6650.c
+++ b/drivers/media/i2c/soc_camera/ov6650.c
@@ -432,6 +432,14 @@ static int ov6650_set_register(struct v4l2_subdev *sd,
}
#endif
+static int ov6650_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
static int ov6650_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
@@ -866,6 +874,7 @@ static struct v4l2_subdev_core_ops ov6650_core_ops = {
.g_register = ov6650_get_register,
.s_register = ov6650_set_register,
#endif
+ .s_power = ov6650_s_power,
};
/* Request bus settings on camera side */
diff --git a/drivers/media/i2c/soc_camera/ov772x.c b/drivers/media/i2c/soc_camera/ov772x.c
index 6d79b89b8603..a022662da98a 100644
--- a/drivers/media/i2c/soc_camera/ov772x.c
+++ b/drivers/media/i2c/soc_camera/ov772x.c
@@ -683,6 +683,14 @@ static int ov772x_s_register(struct v4l2_subdev *sd,
}
#endif
+static int ov772x_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
static const struct ov772x_win_size *ov772x_select_win(u32 width, u32 height)
{
__u32 diff;
@@ -996,6 +1004,7 @@ static struct v4l2_subdev_core_ops ov772x_subdev_core_ops = {
.g_register = ov772x_g_register,
.s_register = ov772x_s_register,
#endif
+ .s_power = ov772x_s_power,
};
static int ov772x_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
diff --git a/drivers/media/i2c/soc_camera/ov9640.c b/drivers/media/i2c/soc_camera/ov9640.c
index 9ed4ba4236c4..53156ef1ec0c 100644
--- a/drivers/media/i2c/soc_camera/ov9640.c
+++ b/drivers/media/i2c/soc_camera/ov9640.c
@@ -333,6 +333,14 @@ static int ov9640_set_register(struct v4l2_subdev *sd,
}
#endif
+static int ov9640_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
/* select nearest higher resolution for capture */
static void ov9640_res_roundup(u32 *width, u32 *height)
{
@@ -632,7 +640,7 @@ static struct v4l2_subdev_core_ops ov9640_core_ops = {
.g_register = ov9640_get_register,
.s_register = ov9640_set_register,
#endif
-
+ .s_power = ov9640_s_power,
};
/* Request bus settings on camera side */
diff --git a/drivers/media/i2c/soc_camera/ov9740.c b/drivers/media/i2c/soc_camera/ov9740.c
index 3eb07c22516e..10c0ba9f5bcd 100644
--- a/drivers/media/i2c/soc_camera/ov9740.c
+++ b/drivers/media/i2c/soc_camera/ov9740.c
@@ -786,17 +786,27 @@ static int ov9740_g_chip_ident(struct v4l2_subdev *sd,
static int ov9740_s_power(struct v4l2_subdev *sd, int on)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
struct ov9740_priv *priv = to_ov9740(sd);
-
- if (!priv->current_enable)
- return 0;
+ int ret;
if (on) {
- ov9740_s_fmt(sd, &priv->current_mf);
- ov9740_s_stream(sd, priv->current_enable);
+ ret = soc_camera_power_on(&client->dev, icl);
+ if (ret < 0)
+ return ret;
+
+ if (priv->current_enable) {
+ ov9740_s_fmt(sd, &priv->current_mf);
+ ov9740_s_stream(sd, 1);
+ }
} else {
- ov9740_s_stream(sd, 0);
- priv->current_enable = true;
+ if (priv->current_enable) {
+ ov9740_s_stream(sd, 0);
+ priv->current_enable = true;
+ }
+
+ soc_camera_power_off(&client->dev, icl);
}
return 0;
diff --git a/drivers/media/i2c/soc_camera/rj54n1cb0c.c b/drivers/media/i2c/soc_camera/rj54n1cb0c.c
index f6419b22c258..ca1cee7c66cb 100644
--- a/drivers/media/i2c/soc_camera/rj54n1cb0c.c
+++ b/drivers/media/i2c/soc_camera/rj54n1cb0c.c
@@ -1180,6 +1180,14 @@ static int rj54n1_s_register(struct v4l2_subdev *sd,
}
#endif
+static int rj54n1_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
static int rj54n1_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct rj54n1 *rj54n1 = container_of(ctrl->handler, struct rj54n1, hdl);
@@ -1230,6 +1238,7 @@ static struct v4l2_subdev_core_ops rj54n1_subdev_core_ops = {
.g_register = rj54n1_g_register,
.s_register = rj54n1_s_register,
#endif
+ .s_power = rj54n1_s_power,
};
static int rj54n1_g_mbus_config(struct v4l2_subdev *sd,
diff --git a/drivers/media/i2c/soc_camera/tw9910.c b/drivers/media/i2c/soc_camera/tw9910.c
index 9f53eacb66e3..f28365051878 100644
--- a/drivers/media/i2c/soc_camera/tw9910.c
+++ b/drivers/media/i2c/soc_camera/tw9910.c
@@ -566,6 +566,14 @@ static int tw9910_s_register(struct v4l2_subdev *sd,
}
#endif
+static int tw9910_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ return soc_camera_set_power(&client->dev, icl, on);
+}
+
static int tw9910_set_frame(struct v4l2_subdev *sd, u32 *width, u32 *height)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
@@ -814,6 +822,7 @@ static struct v4l2_subdev_core_ops tw9910_subdev_core_ops = {
.g_register = tw9910_g_register,
.s_register = tw9910_s_register,
#endif
+ .s_power = tw9910_s_power,
};
static int tw9910_enum_fmt(struct v4l2_subdev *sd, unsigned int index,