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Message-Id: <20240620-igt-v3-14-a9d62d2e2c7e@mediatek.com>
Date: Thu, 20 Jun 2024 00:38:54 +0800
From: Hsiao Chien Sung via B4 Relay <devnull+shawn.sung.mediatek.com@...nel.org>
To: Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>, David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>, Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
CK Hu <ck.hu@...iatek.com>, Bibby Hsieh <bibby.hsieh@...iatek.com>,
Daniel Kurtz <djkurtz@...omium.org>, Mao Huang <littlecvr@...omium.org>,
"Nancy.Lin" <nancy.lin@...iatek.com>
Cc: YT Shen <yt.shen@...iatek.com>, dri-devel@...ts.freedesktop.org,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Hsiao Chien Sung <shawn.sung@...iatek.com>
Subject: [PATCH v3 14/14] drm/mediatek: Support DRM plane alpha in Mixer
From: Hsiao Chien Sung <shawn.sung@...iatek.com>
Set the plane alpha according to DRM plane property.
Reviewed-by: CK Hu <ck.hu@...iatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsiao Chien Sung <shawn.sung@...iatek.com>
---
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 bf5826b7e776..36021cb8df62 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) {
/*
--
Git-146)
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