diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2012-12-21 13:01:55 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-06-21 16:32:36 -0300 |
| commit | 9aea470b399d797e88be08985c489855759c6c60 (patch) | |
| tree | cbcc6f1c80ee9da8b0da54e2d793f63e920527ee /drivers/media/i2c/soc_camera/ov5642.c | |
| parent | e9e310491bdbc8c0f33ea0e2ce65eff345a01f71 (diff) | |
[media] soc-camera: switch I2C subdevice drivers to use v4l2-clk
Instead of centrally enabling and disabling subdevice master clocks in
soc-camera core, let subdevice drivers do that themselves, using the
V4L2 clock API and soc-camera convenience wrappers.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/i2c/soc_camera/ov5642.c')
| -rw-r--r-- | drivers/media/i2c/soc_camera/ov5642.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/media/i2c/soc_camera/ov5642.c b/drivers/media/i2c/soc_camera/ov5642.c index c93a157d1d9..0a5c5d4fedd 100644 --- a/drivers/media/i2c/soc_camera/ov5642.c +++ b/drivers/media/i2c/soc_camera/ov5642.c @@ -24,6 +24,7 @@ #include <linux/v4l2-mediabus.h> #include <media/soc_camera.h> +#include <media/v4l2-clk.h> #include <media/v4l2-subdev.h> /* OV5642 registers */ @@ -609,6 +610,7 @@ struct ov5642 { struct v4l2_subdev subdev; const struct ov5642_datafmt *fmt; struct v4l2_rect crop_rect; + struct v4l2_clk *clk; /* blanking information */ int total_width; @@ -917,12 +919,13 @@ static int ov5642_s_power(struct v4l2_subdev *sd, int on) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct ov5642 *priv = to_ov5642(client); int ret; if (!on) - return soc_camera_power_off(&client->dev, ssdd); + return soc_camera_power_off(&client->dev, ssdd, priv->clk); - ret = soc_camera_power_on(&client->dev, ssdd); + ret = soc_camera_power_on(&client->dev, ssdd, priv->clk); if (ret < 0) return ret; @@ -1002,6 +1005,7 @@ static int ov5642_probe(struct i2c_client *client, { struct ov5642 *priv; struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + int ret; if (!ssdd) { dev_err(&client->dev, "OV5642: missing platform data!\n"); @@ -1023,13 +1027,23 @@ static int ov5642_probe(struct i2c_client *client, priv->total_width = OV5642_DEFAULT_WIDTH + BLANKING_EXTRA_WIDTH; priv->total_height = BLANKING_MIN_HEIGHT; - return ov5642_video_probe(client); + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) + return PTR_ERR(priv->clk); + + ret = ov5642_video_probe(client); + if (ret < 0) + v4l2_clk_put(priv->clk); + + return ret; } static int ov5642_remove(struct i2c_client *client) { struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct ov5642 *priv = to_ov5642(client); + v4l2_clk_put(priv->clk); if (ssdd->free_bus) ssdd->free_bus(ssdd); |