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media: i2c: ov7740: Drop check for reentrant .s_stream()

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The subdev .s_stream() operation shall not be called to start streaming
on an already started subdev, or stop streaming on a stopped subdev.
Remove the check that guards against that condition.

The streaming field of the driver's private structure is now unused,
drop it as well.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Laurent Pinchart 2023-09-14 21:16:34 +03:00 committed by Hans Verkuil
parent 3ca1480abd
commit f29f0a98f2
1 changed files with 0 additions and 7 deletions
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7
drivers/media/i2c/ov7740.c
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@ -118,7 +118,6 @@ struct ov7740 {
struct v4l2_ctrl *contrast;
struct mutex mutex; /* To serialize asynchronus callbacks */
bool streaming; /* Streaming on/off */
struct gpio_desc *resetb_gpio;
struct gpio_desc *pwdn_gpio;
@ -616,10 +615,6 @@ static int ov7740_set_stream(struct v4l2_subdev *sd, int enable)
int ret = 0;
mutex_lock(&ov7740->mutex);
if (ov7740->streaming == enable) {
mutex_unlock(&ov7740->mutex);
return 0;
}
if (enable) {
ret = pm_runtime_resume_and_get(&client->dev);
@ -633,8 +628,6 @@ static int ov7740_set_stream(struct v4l2_subdev *sd, int enable)
pm_runtime_put(&client->dev);
}
ov7740->streaming = enable;
mutex_unlock(&ov7740->mutex);
return ret;