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Date:   Thu, 16 Jun 2022 15:28:33 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>
Cc:     iommu@...ts.linux-foundation.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        mingyuan.ma@...iatek.com, yf.wang@...iatek.com,
        libo.kang@...iatek.com, chengci.xu@...iatek.com,
        youlin.pei@...iatek.com, anan.sun@...iatek.com,
        xueqi.zhang@...iatek.com, Guenter Roeck <groeck@...omium.org>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH v2 1/5] iommu/mediatek: Use dev_err_probe to mute
 probe_defer err log



On 16/06/2022 07:41, Yong Wu wrote:
> Mute the probe defer log:
> 
> [    2.654806] mtk-iommu 14018000.iommu: mm dts parse fail(-517).
> [    2.656168] mtk-iommu 1c01f000.iommu: mm dts parse fail(-517).
> 
> Fixes: d2e9a1102cfc ("iommu/mediatek: Contain MM IOMMU flow with the MM TYPE")
> Signed-off-by: Yong Wu <yong.wu@...iatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Reviewed-by: Guenter Roeck <groeck@...omium.org>

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

> ---
>   drivers/iommu/mtk_iommu.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
> index bb9dd92c9898..3b2489e8a6dd 100644
> --- a/drivers/iommu/mtk_iommu.c
> +++ b/drivers/iommu/mtk_iommu.c
> @@ -1204,7 +1204,7 @@ static int mtk_iommu_probe(struct platform_device *pdev)
>   	if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM)) {
>   		ret = mtk_iommu_mm_dts_parse(dev, &match, data);
>   		if (ret) {
> -			dev_err(dev, "mm dts parse fail(%d).", ret);
> +			dev_err_probe(dev, ret, "mm dts parse fail.");
>   			goto out_runtime_disable;
>   		}
>   	} else if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_INFRA) &&

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