diff options
| author | Hsiao Chien Sung <shawn.sung@mediatek.com> | 2024-07-17 13:24:42 +0800 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2024-07-31 13:24:10 +0000 |
| commit | eb17c5909481d5950282ca8460e7b7420a4c36a4 (patch) | |
| tree | 452567fc9bdc7895349a19ea03b9e37e5a5f18b0 | |
| parent | 1f66fe62cc092d2f6a2f895ec3be86d2c326947c (diff) | |
drm/mediatek: Support "None" blending in Mixer
Support "None" alpha blending mode on MediaTek's chips.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240717-alpha-blending-v4-2-4b1c806c0749@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_ethdr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c index 9dfd13d32dfa..80ccdad3741b 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -3,6 +3,7 @@ * Copyright (c) 2021 MediaTek Inc. */ +#include <drm/drm_blend.h> #include <drm/drm_fourcc.h> #include <drm/drm_framebuffer.h> #include <linux/clk.h> @@ -175,7 +176,8 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, alpha_con |= state->base.alpha & MIXER_ALPHA; } - if (state->base.fb && !state->base.fb->format->has_alpha) { + if ((state->base.fb && !state->base.fb->format->has_alpha) || + state->base.pixel_blend_mode == DRM_MODE_BLEND_PIXEL_NONE) { /* * Mixer doesn't support CONST_BLD mode, * use a trick to make the output equivalent |