linux-kernel - Re: [PATCH v9 14/22] drm/mediatek: dpi: move the csc

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Date:   Mon, 28 Mar 2022 16:35:06 +0800
From:   Rex-BC Chen <rex-bc.chen@...iatek.com>
To:     Guillaume Ranquet <granquet@...libre.com>, <airlied@...ux.ie>,
        <angelogioacchino.delregno@...labora.com>,
        <chunfeng.yun@...iatek.com>, <chunkuang.hu@...nel.org>,
        <ck.hu@...iatek.com>, <daniel@...ll.ch>, <deller@....de>,
        <jitao.shi@...iatek.com>, <kishon@...com>, <krzk+dt@...nel.org>,
        <maarten.lankhorst@...ux.intel.com>, <matthias.bgg@...il.com>,
        <mripard@...nel.org>, <p.zabel@...gutronix.de>,
        <robh+dt@...nel.org>, <tzimmermann@...e.de>, <vkoul@...nel.org>
CC:     <devicetree@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-fbdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-phy@...ts.infradead.org>, <markyacoub@...gle.com>
Subject: Re: [PATCH v9 14/22] drm/mediatek: dpi: move the csc_enable bit to
 SoC config

On Mon, 2022-03-28 at 00:39 +0200, Guillaume Ranquet wrote:
> Add flexibility by moving the csc_enable bit to SoC specific config
> 
> Signed-off-by: Guillaume Ranquet <granquet@...libre.com>
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@...labora.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 40254cd9d168..eb969c5c5c2e 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -133,6 +133,7 @@ struct mtk_dpi_conf {
>  	u32 hvsize_mask;
>  	u32 channel_swap_shift;
>  	u32 yuv422_en_bit;
> +	u32 csc_enable_bit;
>  	const struct mtk_dpi_yc_limit *limit;
>  };
>  
> @@ -363,7 +364,8 @@ static void mtk_dpi_config_yuv422_enable(struct
> mtk_dpi *dpi, bool enable)
>  
>  static void mtk_dpi_config_csc_enable(struct mtk_dpi *dpi, bool
> enable)
>  {
> -	mtk_dpi_mask(dpi, DPI_CON, enable ? CSC_ENABLE : 0,
> CSC_ENABLE);
> +	mtk_dpi_mask(dpi, DPI_CON, enable ? dpi->conf->csc_enable_bit :
> 0,
> +		     dpi->conf->csc_enable_bit);
>  }
>  
>  static void mtk_dpi_config_swap_input(struct mtk_dpi *dpi, bool
> enable)
> @@ -827,6 +829,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
>  	.hvsize_mask = HSIZE_MASK,
>  	.channel_swap_shift = CH_SWAP,
>  	.yuv422_en_bit = YUV422_EN,
> +	.csc_enable_bit = CSC_ENABLE,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -843,6 +846,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
>  	.hvsize_mask = HSIZE_MASK,
>  	.channel_swap_shift = CH_SWAP,
>  	.yuv422_en_bit = YUV422_EN,
> +	.csc_enable_bit = CSC_ENABLE,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -858,6 +862,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
>  	.hvsize_mask = HSIZE_MASK,
>  	.channel_swap_shift = CH_SWAP,
>  	.yuv422_en_bit = YUV422_EN,
> +	.csc_enable_bit = CSC_ENABLE,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -873,6 +878,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
>  	.hvsize_mask = HSIZE_MASK,
>  	.channel_swap_shift = CH_SWAP,
>  	.yuv422_en_bit = YUV422_EN,
> +	.csc_enable_bit = CSC_ENABLE,
>  	.limit = &mtk_dpi_limit,
>  };
>  

Reviewed-by: Rex-BC Chen <rex-bc.chen@...iatek.com>