Re: [PATCH v9 09/22] drm/mediatek: dpi: implement a swap_input toggle in SoC config

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On Mon, 2022-03-28 at 00:39 +0200, Guillaume Ranquet wrote:
> Adds a bit of flexibility to support SoCs without swap_input support
> 
> Signed-off-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@xxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 545a1337cc89..454f8563efae 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -126,6 +126,7 @@ struct mtk_dpi_conf {
>  	const u32 *output_fmts;
>  	u32 num_output_fmts;
>  	bool is_ck_de_pol;
> +	bool swap_input_support;
>  	const struct mtk_dpi_yc_limit *limit;
>  };
>  
> @@ -378,18 +379,21 @@ static void mtk_dpi_config_color_format(struct
> mtk_dpi *dpi,
>  	    (format == MTK_DPI_COLOR_FORMAT_YCBCR_444_FULL)) {
>  		mtk_dpi_config_yuv422_enable(dpi, false);
>  		mtk_dpi_config_csc_enable(dpi, true);
> -		mtk_dpi_config_swap_input(dpi, false);
> +		if (dpi->conf->swap_input_support)
> +			mtk_dpi_config_swap_input(dpi, false);
>  		mtk_dpi_config_channel_swap(dpi,
> MTK_DPI_OUT_CHANNEL_SWAP_BGR);
>  	} else if ((format == MTK_DPI_COLOR_FORMAT_YCBCR_422) ||
>  		   (format == MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL)) {
>  		mtk_dpi_config_yuv422_enable(dpi, true);
>  		mtk_dpi_config_csc_enable(dpi, true);
> -		mtk_dpi_config_swap_input(dpi, true);
> +		if (dpi->conf->swap_input_support)
> +			mtk_dpi_config_swap_input(dpi, true);
>  		mtk_dpi_config_channel_swap(dpi,
> MTK_DPI_OUT_CHANNEL_SWAP_RGB);
>  	} else {
>  		mtk_dpi_config_yuv422_enable(dpi, false);
>  		mtk_dpi_config_csc_enable(dpi, false);
> -		mtk_dpi_config_swap_input(dpi, false);
> +		if (dpi->conf->swap_input_support)
> +			mtk_dpi_config_swap_input(dpi, false);
>  		mtk_dpi_config_channel_swap(dpi,
> MTK_DPI_OUT_CHANNEL_SWAP_RGB);
>  	}
>  }
> @@ -808,6 +812,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
>  	.output_fmts = mt8173_output_fmts,
>  	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
>  	.is_ck_de_pol = true,
> +	.swap_input_support = true,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -819,6 +824,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
>  	.output_fmts = mt8173_output_fmts,
>  	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
>  	.is_ck_de_pol = true,
> +	.swap_input_support = true,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -829,6 +835,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
>  	.output_fmts = mt8183_output_fmts,
>  	.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
>  	.is_ck_de_pol = true,
> +	.swap_input_support = true,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -839,6 +846,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
>  	.output_fmts = mt8173_output_fmts,
>  	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
>  	.is_ck_de_pol = true,
> +	.swap_input_support = true,
>  	.limit = &mtk_dpi_limit,
>  };
>  

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




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