From: Hsiao Chien Sung <shawn.sung@xxxxxxxxxxxx> Support "Pre-multiplied" alpha blending mode in Mixer. Before this patch, only the coverage mode is supported. Signed-off-by: Hsiao Chien Sung <shawn.sung@xxxxxxxxxxxx> --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c index 48b714994492..bc43d0d760c1 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -177,7 +177,8 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, alpha_con |= state->base.alpha & MIXER_ALPHA; } - if (state->base.pixel_blend_mode == DRM_MODE_BLEND_PIXEL_NONE) + if (state->base.pixel_blend_mode == DRM_MODE_BLEND_PIXEL_NONE || + state->base.pixel_blend_mode == DRM_MODE_BLEND_PREMULTI) alpha_con |= PREMULTI_SOURCE; else alpha_con |= NON_PREMULTI_SOURCE; -- Git-146)
