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drm/mediatek: add mt8183 dpi clock factor 

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.shi@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
Jitao Shi 2020-02-25 17:40:56 +08:00 committed by CK Hu
parent a4a417ac82
commit b472094402
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/mediatek/mtk_dpi.c
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@ -664,6 +664,16 @@ 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,
@ -675,6 +685,11 @@ 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;
@ -770,6 +785,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = {
{ .compatible = "mediatek,mt8173-dpi",
.data = &mt8173_conf,
},
{ .compatible = "mediatek,mt8183-dpi",
.data = &mt8183_conf,
},
{ },
};