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authorAndy Yan <andy.yan@rock-chips.com>2025-03-18 14:20:17 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-06-27 11:13:19 +0100
commitbb5728d12a64fc5c59f89ac7b762f00e827ddeea (patch)
tree2e17e4a363ce8fb4e2c3cba43065bc7705ed1fe3
parent373fa551187e35b17f14a424ef0442e41d751060 (diff)
drm/rockchip: vop2: Make overlay layer select register configuration take effect by vsync
[ Upstream commit c5996e4ab109c8bb5541453b20647eaaf9350f41 ] Because the layer/window enable/disable is take effect by vsync, if the overlay configuration of these layers does not follow vsync and takes effect immediately instead, when multiple layers are dynamically enable/disable, inconsistent display contents may be seen on the screen. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250318062024.4555-1-andyshrk@163.com Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/gpu/drm/rockchip/rockchip_drm_vop2.h1
-rw-r--r--drivers/gpu/drm/rockchip/rockchip_vop2_reg.c5
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.h
index 680bedbb770e6..fc3ecb9fcd957 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.h
@@ -710,6 +710,7 @@ enum dst_factor_mode {
#define VOP2_COLOR_KEY_MASK BIT(31)
+#define RK3568_OVL_CTRL__LAYERSEL_REGDONE_SEL GENMASK(31, 30)
#define RK3568_OVL_CTRL__LAYERSEL_REGDONE_IMD BIT(28)
#define RK3568_OVL_CTRL__YUV_MODE(vp) BIT(vp)
diff --git a/drivers/gpu/drm/rockchip/rockchip_vop2_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop2_reg.c
index 0a2840cbe8e22..32c4ed6857395 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop2_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop2_reg.c
@@ -2070,7 +2070,10 @@ static void rk3568_vop2_setup_layer_mixer(struct vop2_video_port *vp)
struct rockchip_crtc_state *vcstate = to_rockchip_crtc_state(vp->crtc.state);
ovl_ctrl = vop2_readl(vop2, RK3568_OVL_CTRL);
- ovl_ctrl |= RK3568_OVL_CTRL__LAYERSEL_REGDONE_IMD;
+ ovl_ctrl &= ~RK3568_OVL_CTRL__LAYERSEL_REGDONE_IMD;
+ ovl_ctrl &= ~RK3568_OVL_CTRL__LAYERSEL_REGDONE_SEL;
+ ovl_ctrl |= FIELD_PREP(RK3568_OVL_CTRL__LAYERSEL_REGDONE_SEL, vp->id);
+
if (vcstate->yuv_overlay)
ovl_ctrl |= RK3568_OVL_CTRL__YUV_MODE(vp->id);
else