From: Rahul Sharma Date: Mon, 23 Jun 2014 05:32:23 +0000 (+0530) Subject: drm/exynos: allow multiple layer updates per vsync for mixer X-Git-Tag: v4.9.8~6158^2~13^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5c0f4829e187f4d43f5ea5cd72cec343ddcdf594;p=platform%2Fkernel%2Flinux-rpi3.git 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 Signed-off-by: Inki Dae --- diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index d359501..6773b03 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -511,13 +511,8 @@ 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); + mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE); } static void mixer_graph_buffer(struct mixer_context *ctx, int win)