linux-kernel - Re: [PATCH 4/4] drm/mediatek: support the DSI0 output on the MT8195 VDOSYS0

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Message-ID: <2d1bae2239626cb51977bf0803cec602@kernel.org>
Date:   Thu, 30 Nov 2023 13:47:17 +0100
From:   Michael Walle <mwalle@...nel.org>
To:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Jitao Shi <jitao.shi@...iatek.com>,
        Xinlei Lee <xinlei.lee@...iatek.com>
Cc:     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
Subject: Re: [PATCH 4/4] drm/mediatek: support the DSI0 output on the MT8195
 VDOSYS0

> With the latest dynamic selection of the output component, we can now
> support different outputs. Move current output component into the
> dynamic routes array and add the new DSI0 output.
> 
> Signed-off-by: Michael Walle <mwalle@...nel.org>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_drv.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c 
> b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index 2b0c35cacbc6..6fa88976376e 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -222,7 +222,11 @@ static const unsigned int mt8195_mtk_ddp_main[] = 
> {
>  	DDP_COMPONENT_DITHER0,
>  	DDP_COMPONENT_DSC0,
>  	DDP_COMPONENT_MERGE0,
> -	DDP_COMPONENT_DP_INTF0,

Please disregard this patch (the others are ok). There must gone 
something
wrong during my testing. DDP_COMPONENT_MERGE0 won't work with
DDP_COMPONENT_DSI0. If anyone has more insights, I'm all ears.

-michael

> +};
> +
> +static const struct mtk_drm_route mt8195_mtk_ddp_main_routes[] = {
> +	{ 0, DDP_COMPONENT_DP_INTF0 },
> +	{ 0, DDP_COMPONENT_DSI0 },
>  };
> 
>  static const unsigned int mt8195_mtk_ddp_ext[] = {
> @@ -308,6 +312,8 @@ static const struct mtk_mmsys_driver_data 
> mt8192_mmsys_driver_data = {
>  static const struct mtk_mmsys_driver_data mt8195_vdosys0_driver_data = 
> {
>  	.main_path = mt8195_mtk_ddp_main,
>  	.main_len = ARRAY_SIZE(mt8195_mtk_ddp_main),
> +	.conn_routes = mt8195_mtk_ddp_main_routes,
> +	.num_conn_routes = ARRAY_SIZE(mt8195_mtk_ddp_main_routes),
>  	.mmsys_dev_num = 2,
>  };