Proxmox-Port/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-08-27 15:50:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/mediatek: Support DRM plane alpha in OVL

Browse Source 
Set the plane alpha according to DRM plane property.

Reviewed-by: CK Hu <ck.hu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Fixes: 119f517362 ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240620-igt-v3-13-a9d62d2e2c7e@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
Hsiao Chien Sung 2024-06-20 00:38:53 +08:00 committed by Chun-Kuang Hu
parent 2606aac50d
commit bc46eb5d5d
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/mediatek/mtk_disp_ovl.c
View File

@ -458,8 +458,10 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx,
}
con = ovl_fmt_convert(ovl, fmt);
if (state->base.fb && state->base.fb->format->has_alpha)
con |= OVL_CON_AEN | OVL_CON_ALPHA;
if (state->base.fb) {
con |= OVL_CON_AEN;
con |= state->base.alpha & OVL_CON_ALPHA;
}
/* CONST_BLD must be enabled for XRGB formats although the alpha channel
* can be ignored, or OVL will still read the value from memory.