Hi, Jitao:
On Tue, 2020-02-25 at 17:40 +0800, Jitao Shi wrote:
The factor depends on the divider of DPI in MT8183, therefore, we should fix this factor to the right and new one.
Applied to mediatek-drm-next-5.7 [1], thanks.
[1] https://github.com/ckhu-mediatek/linux.git-tags/commits/mediatek-drm-next-5....
Signed-off-by: Jitao Shi jitao.shi@mediatek.com Reviewed-by: CK Hu ck.hu@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,- }, { },
};