Commit 5c0f4829 authored Jun 23, 2014 by Rahul Sharma Committed by Inki Dae Jun 24, 2014

drm/exynos: allow multiple layer updates per vsync for mixer



Allowing only one layer update per vsync can cause issues
while there are update available for both layers. There is
a good amount of possibility to loose updates if we allow
single update per vsync.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

parent 381be025

drivers/gpu/drm/exynos/exynos_mixer.c

+1 −6

Original line number	Diff line number	Diff line
		@@ -511,12 +511,7 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
		static void mixer_layer_update(struct mixer_context *ctx)
		{
		struct mixer_resources *res = &ctx->mixer_res;
		u32 val;

		val = mixer_reg_read(res, MXR_CFG);

		/* allow one update per vsync only */
		if (!(val & MXR_CFG_LAYER_UPDATE_COUNT_MASK))
		mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE);
		}