Hi,

On Fri, Sep 16, 2016 at 01:53:29AM +0300, Sakari Ailus wrote:
> Use runtime PM to manage power. The s_power() core sub-device callback is
> removed as it is no longer needed.
> 
> The power management of the sensor is changed so that it is no longer
> dependent on open file descriptors on sub-device or use_count in the media
> entity but solely will be powered on as needed for probing and streaming.
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> ---
> since v1:
> 
> - Both smiapp_set_ctrl() and smiapp_update_mode() perform work which is
>   unrelated to the power state of the device. Instead, check the power
>   state in smiapp_write() which is more appropriate.
> 
> - Don't explicitly disable streaming in smiapp_remove(). It'd be an
>   unrelated change.
> 
>  drivers/media/i2c/smiapp/smiapp-core.c | 130 ++++++++++++++++-----------------
>  drivers/media/i2c/smiapp/smiapp-regs.c |   5 ++
>  drivers/media/i2c/smiapp/smiapp.h      |  11 +--
>  3 files changed, 67 insertions(+), 79 deletions(-)

Reviewed-By: Sebastian Reichel <sre@kernel.org>

-- Sebastian