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Message-ID: <5202922d-9cc3-8aac-4193-ee463b255846@collabora.com>
Date:   Thu, 23 Mar 2023 09:50:12 +0100
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Subject: Re: [PATCH 1/2] media: mediatek: vcodec: Remove decoder 'dma-ranges'
 conditon when set dma mask
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To:     Yunfei Dong <yunfei.dong@mediatek.com>,
        Chen-Yu Tsai <wenst@chromium.org>,
        Yong Wu <yong.wu@mediatek.org>,
        Nicolas Dufresne <nicolas@ndufresne.ca>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>,
        Benjamin Gaignard <benjamin.gaignard@collabora.com>,
        =?UTF-8?Q?N=c3=adcolas_F_=2e_R_=2e_A_=2e_Prado?= 
        <nfraprado@collabora.com>
Cc:     Matthias Brugger <matthias.bgg@gmail.com>,
        Hsin-Yi Wang <hsinyi@chromium.org>,
        Fritz Koenig <frkoenig@chromium.org>,
        Daniel Vetter <daniel@ffwll.ch>,
        Steve Cho <stevecho@chromium.org>, linux-media@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org,
        Project_Global_Chrome_Upstream_Group@mediatek.com
References: <20230323083810.21912-1-yunfei.dong@mediatek.com>
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
In-Reply-To: <20230323083810.21912-1-yunfei.dong@mediatek.com>
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Precedence: bulk

Il 23/03/23 09:38, Yunfei Dong ha scritto:
> After commit f1ad5338a4d5("of: Fix "dma-ranges" handling for bus controllers"),
> the dma-ranges is not allowed in decoder dts node. But the driver still need
> to set dma mask, remove "dma-ranges" condition in prob function.
> 
> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> ---
> Reference series:
> [1]: v5 of this series is present by Yong Wu.
>       20230307023507.13306-1-yong.wu@mediatek.com
> ---
>   .../mediatek/vcodec/mtk_vcodec_dec_drv.c      | 24 +++++++++++++------
>   1 file changed, 17 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> index bba7b932f4fa..2c3a4c2cdaee 100644
> --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> @@ -137,6 +137,20 @@ static int mtk_vcodec_init_dec_resources(struct mtk_vcodec_dev *dev)
>   	return 0;
>   }
>   
> +static int mtk_vcodec_dec_set_dma_mask(struct device *dev)
> +{
> +	int ret = 0;
> +
> +	return !(of_device_is_compatible(dev->of_node, "mediatek,mt8173-vcodec-dec") ||
> +	       of_device_is_compatible(dev->of_node, "mediatek,mt8183-vcodec-dec"));

Like that, you're never reaching the code below...

Anyway, at a first glance, it looked like you were sending the same commit twice,
but then I noticed... so... I would propose to change the commit title(s) to follow
this format:

media: mediatek: vcodec: enc: Set DMA mask only for MT8173 and MT8183

(but then, why mt8173/83 and not the others? this deserves an explanation...)


Regards,
Angelo