rk3368 lcdc: enable dither up default

Signed-off-by: hjc <hjc@rock-chips.com>

diff --git a/drivers/video/rockchip/lcdc/rk3368_lcdc.c b/drivers/video/rockchip/lcdc/rk3368_lcdc.c
index 6e44a653cb1f4382af2572925b202fdf9935805c..7a509cd6d5d3b8c11c6b714abed9948be420789b 100755 (executable)
--- a/drivers/video/rockchip/lcdc/rk3368_lcdc.c
+++ b/drivers/video/rockchip/lcdc/rk3368_lcdc.c
@@ -463,6 +463,9 @@ static int rk3368_lcdc_pre_init(struct rk_lcdc_driver *dev_drv)
        mask = m_AUTO_GATING_EN;
        val = v_AUTO_GATING_EN(0);
        lcdc_msk_reg(lcdc_dev, SYS_CTRL, mask, val);
+       mask = m_DITHER_UP_EN;
+       val = v_DITHER_UP_EN(1);
+       lcdc_msk_reg(lcdc_dev, DSP_CTRL1, mask, val);
        lcdc_cfg_done(lcdc_dev);
        /*disable win0 to workaround iommu pagefault */
        /*if (dev_drv->iommu_enabled) */
@@ -1911,16 +1914,16 @@ static int rk3368_load_screen(struct rk_lcdc_driver *dev_drv, bool initscreen)
                        break;
                case OUT_P888:
                        face = OUT_P888;
-                       mask = m_DITHER_DOWN_EN | m_DITHER_UP_EN;
-                       val = v_DITHER_DOWN_EN(0) | v_DITHER_UP_EN(0);
+                       mask = m_DITHER_DOWN_EN;
+                       val = v_DITHER_DOWN_EN(0);
                        lcdc_msk_reg(lcdc_dev, DSP_CTRL1, mask, val);
                        break;
                case OUT_YUV_420:
                        /*yuv420 output prefer yuv domain overlay */
                        face = OUT_YUV_420;
                        dclk_ddr = 1;
-                       mask = m_DITHER_DOWN_EN | m_DITHER_UP_EN;
-                       val = v_DITHER_DOWN_EN(0) | v_DITHER_UP_EN(0);
+                       mask = m_DITHER_DOWN_EN;
+                       val = v_DITHER_DOWN_EN(0);
                        lcdc_msk_reg(lcdc_dev, DSP_CTRL1, mask, val);
                        break;
                default:
@@ -2000,8 +2003,8 @@ static int rk3368_load_screen(struct rk_lcdc_driver *dev_drv, bool initscreen)
                        val = v_EDP_OUT_EN(1) | v_RGB_OUT_EN(0);
                        lcdc_msk_reg(lcdc_dev, SYS_CTRL, mask, val);
                        /*because edp have to sent aaa fmt */
-                       mask = m_DITHER_DOWN_EN | m_DITHER_UP_EN;
-                       val = v_DITHER_DOWN_EN(0) | v_DITHER_UP_EN(0);
+                       mask = m_DITHER_DOWN_EN;
+                       val = v_DITHER_DOWN_EN(0);
 
                        mask |= m_EDP_HSYNC_POL | m_EDP_VSYNC_POL |
                            m_EDP_DEN_POL | m_EDP_DCLK_POL;