| From 78a32dbd14c6fdf828c62c66fd2c232dbbee9923 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Fri, 28 May 2021 15:05:54 +0200 |
| Subject: drm: rockchip: set alpha_en to 0 if it is not used |
| |
| From: Alex Bee <knaerzche@gmail.com> |
| |
| [ Upstream commit 046e0db975695540c9d9898cdbf0b60533d28afb ] |
| |
| alpha_en should be set to 0 if it is not used, i.e. to disable alpha |
| blending if it was enabled before and should be disabled now. |
| |
| Fixes: 2aae8ed1f390 ("drm/rockchip: Add per-pixel alpha support for the PX30 VOP") |
| Signed-off-by: Alex Bee <knaerzche@gmail.com> |
| Signed-off-by: Heiko Stuebner <heiko@sntech.de> |
| Link: https://patchwork.freedesktop.org/patch/msgid/20210528130554.72191-6-knaerzche@gmail.com |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c |
| index c80f7d9fd13f..0f23144491e4 100644 |
| --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c |
| +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c |
| @@ -1013,6 +1013,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane, |
| VOP_WIN_SET(vop, win, alpha_en, 1); |
| } else { |
| VOP_WIN_SET(vop, win, src_alpha_ctl, SRC_ALPHA_EN(0)); |
| + VOP_WIN_SET(vop, win, alpha_en, 0); |
| } |
| |
| VOP_WIN_SET(vop, win, enable, 1); |
| -- |
| 2.30.2 |
| |
