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    Subject[PATCH v8 6/7] drm/mediatek: add mt8183 dpi clock factor
    Date
    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>
    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,
    + },
    { },
    };

    --
    2.21.0
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