linux-kernel - Re: [PATCH v10 10/21] drm/mediatek: dpi: move hvsize

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Date:   Mon, 30 May 2022 16:21:02 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     Guillaume Ranquet <granquet@...libre.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        "David Airlie" <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        "Kishon Vijay Abraham I" <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>, "Helge Deller" <deller@....de>,
        Jitao shi <jitao.shi@...iatek.com>
CC:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Rex-BC Chen <rex-bc.chen@...iatek.com>,
        <dri-devel@...ts.freedesktop.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-phy@...ts.infradead.org>, <linux-fbdev@...r.kernel.org>
Subject: Re: [PATCH v10 10/21] drm/mediatek: dpi: move hvsize_mask to SoC
 config

Hi, Guillaume:

On Mon, 2022-05-23 at 12:47 +0200, Guillaume Ranquet wrote:
> Add flexibility by moving the hvsize mask to SoC specific config

Reviewed-by: CK Hu <ck.hu@...iatek.com>

> 
> Signed-off-by: Guillaume Ranquet <granquet@...libre.com>
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@...labora.com>
> Reviewed-by: Rex-BC Chen <rex-bc.chen@...iatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index bf098f36a466..6eeda222a973 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -129,6 +129,8 @@ struct mtk_dpi_conf {
>  	bool swap_input_support;
>  	/* Mask used for HWIDTH, HPORCH, VSYNC_WIDTH and VSYNC_PORCH
> (no shift) */
>  	u32 dimension_mask;
> +	/* HSIZE and VSIZE mask (no shift) */
> +	u32 hvsize_mask;
>  	const struct mtk_dpi_yc_limit *limit;
>  };
>  
> @@ -243,8 +245,10 @@ static void mtk_dpi_config_interface(struct
> mtk_dpi *dpi, bool inter)
>  
>  static void mtk_dpi_config_fb_size(struct mtk_dpi *dpi, u32 width,
> u32 height)
>  {
> -	mtk_dpi_mask(dpi, DPI_SIZE, width << HSIZE, HSIZE_MASK);
> -	mtk_dpi_mask(dpi, DPI_SIZE, height << VSIZE, VSIZE_MASK);
> +	mtk_dpi_mask(dpi, DPI_SIZE, width << HSIZE,
> +		     dpi->conf->hvsize_mask << HSIZE);
> +	mtk_dpi_mask(dpi, DPI_SIZE, height << VSIZE,
> +		     dpi->conf->hvsize_mask << VSIZE);
>  }
>  
>  static void mtk_dpi_config_channel_limit(struct mtk_dpi *dpi)
> @@ -816,6 +820,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
>  	.is_ck_de_pol = true,
>  	.swap_input_support = true,
>  	.dimension_mask = HPW_MASK,
> +	.hvsize_mask = HSIZE_MASK,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -829,6 +834,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
>  	.is_ck_de_pol = true,
>  	.swap_input_support = true,
>  	.dimension_mask = HPW_MASK,
> +	.hvsize_mask = HSIZE_MASK,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -841,6 +847,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
>  	.is_ck_de_pol = true,
>  	.swap_input_support = true,
>  	.dimension_mask = HPW_MASK,
> +	.hvsize_mask = HSIZE_MASK,
>  	.limit = &mtk_dpi_limit,
>  };
>  
> @@ -853,6 +860,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
>  	.is_ck_de_pol = true,
>  	.swap_input_support = true,
>  	.dimension_mask = HPW_MASK,
> +	.hvsize_mask = HSIZE_MASK,
>  	.limit = &mtk_dpi_limit,
>  };
>