linux-kernel - Re: [PATCH v4,2/2] drm/mediatek: Add mt8186 dpi compatible to mtk

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Date:   Tue, 12 Apr 2022 16:20:51 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     <xinlei.lee@...iatek.com>, <chunkuang.hu@...nel.org>,
        <p.zabel@...gutronix.de>, <airlied@...ux.ie>, <daniel@...ll.ch>,
        <robh+dt@...nel.org>, <matthias.bgg@...il.com>
CC:     <devicetree@...r.kernel.org>, <jitao.shi@...iatek.com>,
        <linux-kernel@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        <linux-mediatek@...ts.infradead.org>, <rex-bc.chen@...iatek.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4,2/2] drm/mediatek: Add mt8186 dpi compatible to
 mtk_dpi.c

Hi, Xinlei:

On Mon, 2022-04-11 at 10:53 +0800, xinlei.lee@...iatek.com wrote:
> From: Xinlei Lee <xinlei.lee@...iatek.com>
> 
> Add the compatible because use different .data in mt8186.
> 
> Signed-off-by: Xinlei Lee <xinlei.lee@...iatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 4554e2de1430..824d7da41c6a 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -815,6 +815,14 @@ static const struct mtk_dpi_conf mt8183_conf = {
>  	.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
>  };
>  
> +static const struct mtk_dpi_conf mt8186_conf = {
> +	.cal_factor =  mt8183_calculate_factor,
> +	.reg_h_fre_con = 0xe0,
> +	.max_clock_khz = 150000,
> +	.output_fmts = mt8183_output_fmts,
> +	.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
> +};
> +
>  static const struct mtk_dpi_conf mt8192_conf = {
>  	.cal_factor = mt8183_calculate_factor,
>  	.reg_h_fre_con = 0xe0,
> @@ -942,6 +950,9 @@ static const struct of_device_id mtk_dpi_of_ids[]
> = {
>  	{ .compatible = "mediatek,mt8183-dpi",
>  	  .data = &mt8183_conf,
>  	},
> +	{ .compatible = "mediatek,mt8186-dpi",
> +	  .data = &mt8186_conf,

If Nicolas' patch [1] is correct, this should be

.data = &mt8192_conf,

Could you help to comfirm patch [1] is correct or not?

[1] 
https://patchwork.kernel.org/project/linux-mediatek/patch/20220408013950.674477-1-nfraprado@collabora.com/

Regards,
CK

> +	},
>  	{ .compatible = "mediatek,mt8192-dpi",
>  	  .data = &mt8192_conf,
>  	},