linux-kernel - Re: [PATCH v19 07/10] drm/mediatek: add mediatek-drm of vdosys0 support for mt8195

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Date:   Fri, 15 Apr 2022 12:18:49 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     "jason-jh.lin" <jason-jh.lin@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>
Cc:     CK Hu <ck.hu@...iatek.com>, Nancy Lin <nancy.lin@...iatek.com>,
        Singo Chang <singo.chang@...iatek.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v19 07/10] drm/mediatek: add mediatek-drm of vdosys0
 support for mt8195

Il 15/04/22 10:39, jason-jh.lin ha scritto:
> 1. Add driver data of mt8195 vdosys0 to mediatek-drm and the sub driver.
> 2. Add get driver data function to identify which vdosys by io_start.
> 
> Signed-off-by: jason-jh.lin <jason-jh.lin@...iatek.com>
> ---
>   drivers/gpu/drm/mediatek/mtk_disp_rdma.c |   6 +
>   drivers/gpu/drm/mediatek/mtk_drm_drv.c   | 141 +++++++++++++++++++++--
>   drivers/gpu/drm/mediatek/mtk_drm_drv.h   |   6 +
>   3 files changed, 145 insertions(+), 8 deletions(-)
> 

..snip..

> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> index a58cebd01d35..e1a37ca091f3 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> @@ -21,6 +21,7 @@ struct drm_property;
>   struct regmap;
>   
>   struct mtk_mmsys_driver_data {
> +	const unsigned int io_start;

As mentioned in patch 03/10, this has to be

	const resource_size_t io_start;

Thanks!