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Date: Thu, 20 Jun 2024 01:27:09 +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> Cc: 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 4/5] drm/mediatek: Support "Pre-multiplied" blending in Mixer From: Hsiao Chien Sung <shawn.sung@...iatek.com> 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@...iatek.com> --- 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)
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