The factor depends on the divider of DPI in MT8183, therefore,
we should fix this factor to the right and new one.

Signed-off-by: Jitao Shi <jitao....@mediatek.com>
Reviewed-by: CK Hu <ck...@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c 
b/drivers/gpu/drm/mediatek/mtk_dpi.c
index df598f87a40f..db3272f7a4c4 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -676,6 +676,16 @@ static unsigned int mt2701_calculate_factor(int clock)
                return 1;
 }
 
+static unsigned int mt8183_calculate_factor(int clock)
+{
+       if (clock <= 27000)
+               return 8;
+       else if (clock <= 167000)
+               return 4;
+       else
+               return 2;
+}
+
 static const struct mtk_dpi_conf mt8173_conf = {
        .cal_factor = mt8173_calculate_factor,
        .reg_h_fre_con = 0xe0,
@@ -687,6 +697,11 @@ static const struct mtk_dpi_conf mt2701_conf = {
        .edge_sel_en = true,
 };
 
+static const struct mtk_dpi_conf mt8183_conf = {
+       .cal_factor = mt8183_calculate_factor,
+       .reg_h_fre_con = 0xe0,
+};
+
 static int mtk_dpi_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
@@ -784,6 +799,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = {
        { .compatible = "mediatek,mt8173-dpi",
          .data = &mt8173_conf,
        },
+       { .compatible = "mediatek,mt8183-dpi",
+         .data = &mt8183_conf,
+       },
        { },
 };
 
-- 
2.21.0
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

Reply via email to