the shadow register for mt8192 ddp component is enable,
we need disable it before enable ddp component
Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 3 +++
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 7 +++++++
2 files changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index fe46c4b..16e9b88 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -299,6 +299,9 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
goto err_mutex_unprepare;
}
+ for (i = 0; i < mtk_crtc->ddp_comp_nr; i++)
+ mtk_ddp_comp_bypass_shadow(mtk_crtc->ddp_comp[i]);
+
DRM_DEBUG_DRIVER("mediatek_ddp_ddp_path_setup\n");
for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) {
mtk_mmsys_ddp_connect(mtk_crtc->mmsys_dev,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index ae11b46..1f25705 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -45,6 +45,7 @@ struct mtk_ddp_comp_funcs {
unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
void (*start)(struct mtk_ddp_comp *comp);
void (*stop)(struct mtk_ddp_comp *comp);
+ void (*bypass_shadow)(struct mtk_ddp_comp *comp);
void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
void (*disable_vblank)(struct mtk_ddp_comp *comp);
unsigned int (*supported_rotations)(struct mtk_ddp_comp *comp);
@@ -169,6 +170,12 @@ static inline void mtk_ddp_ctm_set(struct mtk_ddp_comp *comp,
comp->funcs->ctm_set(comp, state);
}
+static inline void mtk_ddp_comp_bypass_shadow(struct mtk_ddp_comp *comp)
+{
+ if (comp->funcs && comp->funcs->bypass_shadow)
+ comp->funcs->bypass_shadow(comp);
+}
+
int mtk_ddp_comp_get_id(struct device_node *node,
enum mtk_ddp_comp_type comp_type);
int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
--
1.8.1.1.dirty
