[PATCH v3, 07/15] drm/mediatek: enable OVL_LAYER_SMI_ID_EN for multi-layer usecase
From: Yongqiang Niu <hidden>
Date: 2021-01-11 07:45:28
Also in:
dri-devel, linux-devicetree, linux-mediatek, lkml
Subsystem:
drm drivers, drm drivers for mediatek, the rest · Maintainers:
David Airlie, Simona Vetter, Chun-Kuang Hu, Philipp Zabel, Linus Torvalds
enable OVL_LAYER_SMI_ID_EN for multi-layer usecase Signed-off-by: Yongqiang Niu <redacted> --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index b47c238..4934bee 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c@@ -23,6 +23,7 @@ #define DISP_REG_OVL_RST 0x0014 #define DISP_REG_OVL_ROI_SIZE 0x0020 #define DISP_REG_OVL_DATAPATH_CON 0x0024 +#define OVL_LAYER_SMI_ID_EN BIT(0) #define OVL_BGCLR_SEL_IN BIT(2) #define DISP_REG_OVL_ROI_BGCLR 0x0028 #define DISP_REG_OVL_SRC_CON 0x002c
@@ -61,6 +62,7 @@ struct mtk_disp_ovl_data { unsigned int gmc_bits; unsigned int layer_nr; bool fmt_rgb565_is_0; + bool smi_id_en; }; /**
@@ -116,7 +118,17 @@ static void mtk_ovl_disable_vblank(struct mtk_ddp_comp *comp) static void mtk_ovl_start(struct mtk_ddp_comp *comp) { + struct mtk_disp_ovl *ovl = comp_to_ovl(comp); + writel_relaxed(0x1, comp->regs + DISP_REG_OVL_EN); + + if(ovl->data->smi_id_en) { + unsigned int reg; + + reg = readl(comp->regs + DISP_REG_OVL_DATAPATH_CON); + reg = reg | OVL_LAYER_SMI_ID_EN; + writel_relaxed(reg, comp->regs + DISP_REG_OVL_DATAPATH_CON); + } } static void mtk_ovl_stop(struct mtk_ddp_comp *comp)
--
1.8.1.1.dirty
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