On 06/19/2017 03:49 PM, Hans Verkuil wrote:
From: Hans Verkuil<hansverk@xxxxxxxxx> The type field in struct v4l2_selection is supposed to never use the _MPLANE variants. E.g. if the driver supports V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, then userspace should still pass V4L2_BUF_TYPE_VIDEO_CAPTURE. The reasons for this are lost in the mists of time, but it is really annoying. In addition, the exynos drivers didn't follow this rule and instead expected the _MPLANE type. To fix that code is added to the v4l2 core that maps the _MPLANE buffer types to their regular equivalents before calling the driver. Effectively this allows for userspace to use either _MPLANE or the regular buffer type. This keeps backwards compatibility while making things easier for userspace. Since drivers now never see the _MPLANE buffer types the exynos drivers had to be adapted as well. Signed-off-by: Hans Verkuil <hansverk@xxxxxxxxx> Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Acked-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> -- Thanks, Sylwester
