add ovl bypass shadow register function
Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 03eaadb..fb0fe59 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -19,6 +19,9 @@
#define DISP_REG_OVL_INTEN 0x0004
#define OVL_FME_CPL_INT BIT(1)
#define DISP_REG_OVL_INTSTA 0x0008
+#define OVL_EN BIT(0)
+#define OVL_READ_WORK_REG BIT(20)
+#define OVL_BYPASS_SHADOW BIT(22)
#define DISP_REG_OVL_EN 0x000c
#define DISP_REG_OVL_RST 0x0014
#define DISP_REG_OVL_ROI_SIZE 0x0020
@@ -62,6 +65,7 @@ struct mtk_disp_ovl_data {
unsigned int gmc_bits;
unsigned int layer_nr;
bool fmt_rgb565_is_0;
+ bool has_shadow;
};
/**
@@ -126,6 +130,17 @@ static void mtk_ovl_stop(struct mtk_ddp_comp *comp)
writel_relaxed(0x0, comp->regs + DISP_REG_OVL_EN);
}
+static void mtk_ovl_bypass_shadow(struct mtk_ddp_comp *comp)
+{
+ struct mtk_disp_ovl *ovl = comp_to_ovl(comp);
+
+ if (ovl->data->has_shadow) {
+ mtk_ddp_write_mask(NULL, OVL_BYPASS_SHADOW, comp,
+ DISP_REG_OVL_EN,
+ OVL_BYPASS_SHADOW);
+ }
+}
+
static void mtk_ovl_config(struct mtk_ddp_comp *comp, unsigned int w,
unsigned int h, unsigned int vrefresh,
unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
@@ -318,6 +333,7 @@ static void mtk_ovl_bgclr_in_off(struct mtk_ddp_comp *comp)
.config = mtk_ovl_config,
.start = mtk_ovl_start,
.stop = mtk_ovl_stop,
+ .bypass_shadow = mtk_ovl_bypass_shadow,
.enable_vblank = mtk_ovl_enable_vblank,
.disable_vblank = mtk_ovl_disable_vblank,
.supported_rotations = mtk_ovl_supported_rotations,
--
1.8.1.1.dirty
