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| author | Marco Felsch <m.felsch@pengutronix.de> | 2018-11-27 11:02:48 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-12-05 12:37:55 +0100 |
| commit | 7784b1d2789816d3e5cef7243b6b6b4d7185ca3d (patch) | |
| tree | fcba989f2fc46f9b5eebfb052cd839dc98f108bc /drivers/media/i2c/mt9m111.c | |
| parent | media: imx274: select REGMAP_I2C (diff) | |
| download | linux-7784b1d2789816d3e5cef7243b6b6b4d7185ca3d.tar.xz linux-7784b1d2789816d3e5cef7243b6b6b4d7185ca3d.zip | |
media: mt9m111: add s_stream callback
Add callback to check if we are already streaming. Now other callbacks
can check the state and return -EBUSY if we already streaming.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/i2c/mt9m111.c')
| -rw-r--r-- | drivers/media/i2c/mt9m111.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/i2c/mt9m111.c b/drivers/media/i2c/mt9m111.c index 58d134dcdf44..03559669de9f 100644 --- a/drivers/media/i2c/mt9m111.c +++ b/drivers/media/i2c/mt9m111.c @@ -220,6 +220,7 @@ struct mt9m111 { int power_count; const struct mt9m111_datafmt *fmt; int lastpage; /* PageMap cache value */ + bool is_streaming; #ifdef CONFIG_MEDIA_CONTROLLER struct media_pad pad; #endif @@ -910,6 +911,14 @@ static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd, return 0; } +static int mt9m111_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); + + mt9m111->is_streaming = !!enable; + return 0; +} + static int mt9m111_g_mbus_config(struct v4l2_subdev *sd, struct v4l2_mbus_config *cfg) { @@ -923,6 +932,7 @@ static int mt9m111_g_mbus_config(struct v4l2_subdev *sd, static const struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = { .g_mbus_config = mt9m111_g_mbus_config, + .s_stream = mt9m111_s_stream, }; static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = { |