From: Hsiao Chien Sung <shawn.s...@mediatek.com>
Support "None" alpha blending mode on MediaTek's chips.
Signed-off-by: Hsiao Chien Sung <shawn.s...@mediatek.com>
Reviewed-by: CK Hu <ck...@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index ad84c2fe57111..87dbecc09a260 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -480,7 +480,8 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int
idx,
con |= state->base.alpha & OVL_CON_ALPHA;
}
- if (state->base.fb && !state->base.fb->format->has_alpha)
+ if (blend_mode == DRM_MODE_BLEND_PIXEL_NONE ||
+ (state->base.fb && !state->base.fb->format->has_alpha))
ignore_pixel_alpha = OVL_CONST_BLEND;
if (pending->rotation & DRM_MODE_REFLECT_Y) {
--
2.18.0
