linux-kernel - Re: [PATCH v11 6/9] drm/mediatek: dpi: Support dynamic connector selection

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Message-ID: <e71b49166b1826c668b580e68a496906ae69c6ae.camel@mediatek.com>
Date:   Fri, 6 Oct 2023 07:55:22 +0000
From:   CK Hu (胡俊光) <ck.hu@...iatek.com>
To:     Jason-JH Lin (林睿祥) 
        <Jason-JH.Lin@...iatek.com>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Singo Chang (張興國) 
        <Singo.Chang@...iatek.com>,
        Johnson Wang (王聖鑫) 
        <Johnson.Wang@...iatek.com>,
        Jason-ch Chen (陳建豪) 
        <Jason-ch.Chen@...iatek.com>,
        Shawn Sung (宋孝謙) 
        <Shawn.Sung@...iatek.com>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Nancy Lin (林欣螢) <Nancy.Lin@...iatek.com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>
Subject: Re: [PATCH v11 6/9] drm/mediatek: dpi: Support dynamic connector
 selection

Hi, Jason:

On Wed, 2023-10-04 at 10:40 +0800, Jason-JH.Lin wrote:
> Add implementation of mtk_dpi_encoder_index to mtk_ddp_comp_func
> to make mtk_dpi support dynamic connector selection.

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

> 
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@...labora.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_disp_drv.h     | 1 +
>  drivers/gpu/drm/mediatek/mtk_dpi.c          | 9 +++++++++
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 +
>  3 files changed, 11 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 2254038519e1..5f07037670e9 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -44,6 +44,7 @@ void mtk_dither_set_common(void __iomem *regs,
> struct cmdq_client_reg *cmdq_reg,
>  
>  void mtk_dpi_start(struct device *dev);
>  void mtk_dpi_stop(struct device *dev);
> +unsigned int mtk_dpi_encoder_index(struct device *dev);
>  
>  void mtk_dsi_ddp_start(struct device *dev);
>  void mtk_dsi_ddp_stop(struct device *dev);
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 2f931e4e2b60..4e3d9f7b4d8c 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -781,6 +781,15 @@ void mtk_dpi_stop(struct device *dev)
>  	mtk_dpi_power_off(dpi);
>  }
>  
> +unsigned int mtk_dpi_encoder_index(struct device *dev)
> +{
> +	struct mtk_dpi *dpi = dev_get_drvdata(dev);
> +	unsigned int encoder_index = drm_encoder_index(&dpi->encoder);
> +
> +	dev_dbg(dev, "encoder index:%d\n", encoder_index);
> +	return encoder_index;
> +}
> +
>  static int mtk_dpi_bind(struct device *dev, struct device *master,
> void *data)
>  {
>  	struct mtk_dpi *dpi = dev_get_drvdata(dev);
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index 02f0ada3754b..601755925520 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -304,6 +304,7 @@ static const struct mtk_ddp_comp_funcs ddp_dither
> = {
>  static const struct mtk_ddp_comp_funcs ddp_dpi = {
>  	.start = mtk_dpi_start,
>  	.stop = mtk_dpi_stop,
> +	.encoder_index = mtk_dpi_encoder_index,
>  };
>  
>  static const struct mtk_ddp_comp_funcs ddp_dsc = {