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authorYongqiang Niu <yongqiang.niu@mediatek.com>2021-01-31 13:10:58 +0800
committerChun-Kuang Hu <chunkuang.hu@kernel.org>2021-02-04 22:55:46 +0800
commit49629304b91fc7cdc484bb82047a8b97ae3978db (patch)
treea45ede0d1eb7dd6f8e4a8174ae06aa62ecee0092 /drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
parentd41ff4dcf093885dcc253e3861834eea294827cb (diff)
drm/mediatek: Enable dither function
Enable dither function to improve the display quality. Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c')
-rw-r--r--drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index c730029ac8fc..1b1a30535462 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -53,6 +53,7 @@
#define DITHER_EN BIT(0)
#define DISP_DITHER_CFG 0x0020
#define DITHER_RELAY_MODE BIT(0)
+#define DITHER_ENGINE_EN BIT(1)
#define DISP_DITHER_SIZE 0x0030
#define LUT_10BIT_MASK 0x03ff
@@ -317,6 +318,8 @@ static void mtk_dither_config(struct device *dev, unsigned int w,
mtk_ddp_write(cmdq_pkt, h << 16 | w, &priv->cmdq_reg, priv->regs, DISP_DITHER_SIZE);
mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, &priv->cmdq_reg, priv->regs, DISP_DITHER_CFG);
+ mtk_dither_set_common(priv->regs, &priv->cmdq_reg, bpc, DISP_DITHER_CFG,
+ DITHER_ENGINE_EN, cmdq_pkt);
}
static void mtk_dither_start(struct device *dev)