diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2017-09-29 12:23:56 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2017-10-24 17:14:25 +0200 |
| commit | 6771fce5060e10f6c878b5d644e9d66dd7f68950 (patch) | |
| tree | 0722c903e18be3fb31037ed76d03cc434a8e46ce /drivers/media/i2c/smiapp/smiapp.h | |
| parent | 72eaf99f0471d7e03e46f0d87770626430995df2 (diff) | |
media: smiapp: Rely on runtime PM
Instead of relying on a mix of runtime PM and the s_power() callback, drop
the s_power() callback altogether and use runtime PM solely.
As device access is required during device power-on and power-off
sequences, runtime PM alone cannot tell whether the device is available.
Thus the "active" field is introduced in struct smiapp_sensor to tell
whether it is safe to write to the device.
Consequently there is no need to power on the device whenever a file
handle is open. This functionality is removed as well. The user may still
control the device power management through sysfs. Autosuspend remains
enabled, with 1 s delay.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/i2c/smiapp/smiapp.h')
| -rw-r--r-- | drivers/media/i2c/smiapp/smiapp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/i2c/smiapp/smiapp.h b/drivers/media/i2c/smiapp/smiapp.h index f74d695018b9..e6a5ab402d7f 100644 --- a/drivers/media/i2c/smiapp/smiapp.h +++ b/drivers/media/i2c/smiapp/smiapp.h @@ -206,6 +206,7 @@ struct smiapp_sensor { u8 hvflip_inv_mask; /* H/VFLIP inversion due to sensor orientation */ u8 frame_skip; + bool active; /* is the sensor powered on? */ u16 embedded_start; /* embedded data start line */ u16 embedded_end; u16 image_start; /* image data start line */ |