From 9b751e52fb6b049acec44a30f54b6746d57e5009 Mon Sep 17 00:00:00 2001 From: Hsiao Chien Sung Date: Thu, 20 Jun 2024 00:38:54 +0800 Subject: [PATCH] drm/mediatek: Support DRM plane alpha in Mixer Set the plane alpha according to DRM plane property. Reviewed-by: CK Hu Reviewed-by: AngeloGioacchino Del Regno Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Hsiao Chien Sung Link: https://patchwork.kernel.org/project/dri-devel/patch/20240620-igt-v3-14-a9d62d2e2c7e@mediatek.com/ Signed-off-by: Chun-Kuang Hu --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c index bf5826b7e7760..36021cb8df62d 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -170,8 +170,10 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, return; } - if (state->base.fb && state->base.fb->format->has_alpha) - alpha_con = MIXER_ALPHA_AEN | MIXER_ALPHA; + if (state->base.fb) { + alpha_con |= MIXER_ALPHA_AEN; + alpha_con |= state->base.alpha & MIXER_ALPHA; + } if (state->base.fb && !state->base.fb->format->has_alpha) { /* -- 2.47.3