Hi, Jitao:
On Wed, 2019-08-07 at 14:02 +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.
>
Reviewed-by: CK Hu <ck.hu@xxxxxxxxxxxx>
> Signed-off-by: Jitao Shi <jitao.shi@xxxxxxxxxxxx>
> ---
> 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 743230864ba0..4f2700cbfdb7 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -672,6 +672,16 @@ 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,
> @@ -683,6 +693,11 @@ 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;
> @@ -779,6 +794,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = {
> { .compatible = "mediatek,mt8173-dpi",
> .data = &mt8173_conf,
> },
> + { .compatible = "mediatek,mt8183-dpi",
> + .data = &mt8183_conf,
> + },
> { },
> };
>
