linux-kernel - Re: [PATCH v2 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0

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Message-ID: <ba23e233-a0a2-c5e9-1a63-497d7dea4814@gmail.com>
Date:   Thu, 27 Apr 2023 14:17:58 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     "Jason-JH.Lin" <jason-jh.lin@...iatek.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Alexandre Mergnat <amergnat@...libre.com>
Cc:     Rex-BC Chen <rex-bc.chen@...iatek.com>,
        Jason-ch Chen <jason-ch.chen@...iatek.com>,
        Johnson Wang <johnson.wang@...iatek.com>,
        Singo Chang <singo.chang@...iatek.com>,
        Nancy Lin <nancy.lin@...iatek.com>,
        Shawn Sung <shawn.sung@...iatek.com>,
        dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        Nathan Lu <nathan.lu@...iatek.com>
Subject: Re: [PATCH v2 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0



On 27/04/2023 10:40, Jason-JH.Lin wrote:
> Add DSI as main display output for mt8188 vdosys0.
> 
> Signed-off-by: Nathan Lu <nathan.lu@...iatek.com>
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>

Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>

> ---
>   drivers/gpu/drm/mediatek/mtk_disp_drv.h     | 1 +
>   drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 +
>   drivers/gpu/drm/mediatek/mtk_drm_drv.c      | 5 +++++
>   drivers/gpu/drm/mediatek/mtk_dsi.c          | 9 +++++++++
>   4 files changed, 16 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 72c57442f965..bf06ccb65652 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -48,6 +48,7 @@ int mtk_dpi_encoder_index(struct device *dev);
>   
>   void mtk_dsi_ddp_start(struct device *dev);
>   void mtk_dsi_ddp_stop(struct device *dev);
> +int mtk_dsi_encoder_index(struct device *dev);
>   
>   int mtk_gamma_clk_enable(struct device *dev);
>   void mtk_gamma_clk_disable(struct device *dev);
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index fe20ce26b19f..214233d36487 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -318,6 +318,7 @@ static const struct mtk_ddp_comp_funcs ddp_dsc = {
>   static const struct mtk_ddp_comp_funcs ddp_dsi = {
>   	.start = mtk_dsi_ddp_start,
>   	.stop = mtk_dsi_ddp_stop,
> +	.encoder_index = mtk_dsi_encoder_index,
>   };
>   
>   static const struct mtk_ddp_comp_funcs ddp_gamma = {
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index d8c49614a107..7ea4dc87c558 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -191,8 +191,13 @@ static const unsigned int mt8188_mtk_ddp_main_routes_0[] = {
>   	DDP_COMPONENT_DP_INTF0
>   };
>   
> +static const unsigned int mt8188_mtk_ddp_main_routes_1[] = {
> +	DDP_COMPONENT_DSI0
> +};
> +
>   static const struct mtk_drm_route mt8188_mtk_ddp_main_routes[] = {
>   	{0, ARRAY_SIZE(mt8188_mtk_ddp_main_routes_0), mt8188_mtk_ddp_main_routes_0},
> +	{0, ARRAY_SIZE(mt8188_mtk_ddp_main_routes_1), mt8188_mtk_ddp_main_routes_1},
>   };
>   
>   static const unsigned int mt8192_mtk_ddp_main[] = {
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index 7d5250351193..f9d2d5447e2e 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> @@ -865,6 +865,15 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi)
>   	return ret;
>   }
>   
> +int mtk_dsi_encoder_index(struct device *dev)
> +{
> +	struct mtk_dsi *dsi = dev_get_drvdata(dev);
> +	int encoder_index = drm_encoder_index(&dsi->encoder);
> +
> +	dev_dbg(dev, "encoder index:%d", encoder_index);
> +	return encoder_index;
> +}
> +
>   static int mtk_dsi_bind(struct device *dev, struct device *master, void *data)
>   {
>   	int ret;