diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2012-12-21 20:01:55 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-06-21 23:32:36 +0400 |
| commit | 9aea470b399d797e88be08985c489855759c6c60 (patch) | |
| tree | cbcc6f1c80ee9da8b0da54e2d793f63e920527ee /drivers/media/i2c/soc_camera/mt9t112.c | |
| parent | e9e310491bdbc8c0f33ea0e2ce65eff345a01f71 (diff) | |
| download | linux-9aea470b399d797e88be08985c489855759c6c60.tar.xz | |
[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/mt9t112.c')
| -rw-r--r-- | drivers/media/i2c/soc_camera/mt9t112.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/media/i2c/soc_camera/mt9t112.c b/drivers/media/i2c/soc_camera/mt9t112.c index 9b276dde5ac8..46f431a13782 100644 --- a/drivers/media/i2c/soc_camera/mt9t112.c +++ b/drivers/media/i2c/soc_camera/mt9t112.c @@ -27,6 +27,7 @@ #include <media/mt9t112.h> #include <media/soc_camera.h> +#include <media/v4l2-clk.h> #include <media/v4l2-common.h> /* you can check PLL/clock info */ @@ -89,6 +90,7 @@ struct mt9t112_priv { struct mt9t112_camera_info *info; struct i2c_client *client; struct v4l2_rect frame; + struct v4l2_clk *clk; const struct mt9t112_format *format; int num_formats; u32 flags; @@ -768,8 +770,9 @@ static int mt9t112_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 mt9t112_priv *priv = to_mt9t112(client); - return soc_camera_set_power(&client->dev, ssdd, on); + return soc_camera_set_power(&client->dev, ssdd, priv->clk, on); } static struct v4l2_subdev_core_ops mt9t112_subdev_core_ops = { @@ -1092,16 +1095,29 @@ static int mt9t112_probe(struct i2c_client *client, v4l2_i2c_subdev_init(&priv->subdev, client, &mt9t112_subdev_ops); + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) + return PTR_ERR(priv->clk); + ret = mt9t112_camera_probe(client); - if (ret) - return ret; /* Cannot fail: using the default supported pixel code */ - mt9t112_set_params(priv, &rect, V4L2_MBUS_FMT_UYVY8_2X8); + if (!ret) + mt9t112_set_params(priv, &rect, V4L2_MBUS_FMT_UYVY8_2X8); + else + v4l2_clk_put(priv->clk); return ret; } +static int mt9t112_remove(struct i2c_client *client) +{ + struct mt9t112_priv *priv = to_mt9t112(client); + + v4l2_clk_put(priv->clk); + return 0; +} + static const struct i2c_device_id mt9t112_id[] = { { "mt9t112", 0 }, { } @@ -1113,6 +1129,7 @@ static struct i2c_driver mt9t112_i2c_driver = { .name = "mt9t112", }, .probe = mt9t112_probe, + .remove = mt9t112_remove, .id_table = mt9t112_id, }; |