[libcamera-devel] [PATCH v3 1/4] libcamera: ipa: raspberrypi: ALSC: Camera mode does not need to be atomic

Naushir Patuck naush at raspberrypi.com
Tue Aug 4 10:49:09 CEST 2020


Hi David,

Thank you for the patch.

On Sat, 1 Aug 2020 at 09:02, David Plowman
<david.plowman at raspberrypi.com> wrote:
>
> In the libcamera framework, SwitchMode (which overwrites the
> camera_mode) cannot run concurrently with Prepare (which uses it).
>
> Signed-off-by: David Plowman <david.plowman at raspberrypi.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

Reviewed-by: Naushir Patuck <naush at raspberrypi.com>


> ---
>  src/ipa/raspberrypi/controller/rpi/alsc.hpp | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/ipa/raspberrypi/controller/rpi/alsc.hpp b/src/ipa/raspberrypi/controller/rpi/alsc.hpp
> index 3806257..e895913 100644
> --- a/src/ipa/raspberrypi/controller/rpi/alsc.hpp
> +++ b/src/ipa/raspberrypi/controller/rpi/alsc.hpp
> @@ -59,7 +59,7 @@ private:
>         // configuration is read-only, and available to both threads
>         AlscConfig config_;
>         bool first_time_;
> -       std::atomic<CameraMode> camera_mode_;
> +       CameraMode camera_mode_;
>         std::thread async_thread_;
>         void asyncFunc(); // asynchronous thread function
>         std::mutex mutex_;
> --
> 2.20.1
>
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