linux-kernel - Re: [PATCH v5 25/34] iommu/mediatek: Separate mtk_iommu

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Date:   Fri, 18 Feb 2022 13:52:28 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Will Deacon <will@...nel.org>
Cc:     Robin Murphy <robin.murphy@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Tomasz Figa <tfiga@...omium.org>,
        linux-mediatek@...ts.infradead.org, srv_heupstream@...iatek.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        iommu@...ts.linux-foundation.org,
        Hsin-Yi Wang <hsinyi@...omium.org>, youlin.pei@...iatek.com,
        anan.sun@...iatek.com, xueqi.zhang@...iatek.com,
        yen-chang.chen@...iatek.com, mingyuan.ma@...iatek.com,
        yf.wang@...iatek.com, libo.kang@...iatek.com,
        chengci.xu@...iatek.com
Subject: Re: [PATCH v5 25/34] iommu/mediatek: Separate mtk_iommu_data for v1
 and v2

Il 17/02/22 12:34, Yong Wu ha scritto:
> Prepare for adding the structure "mtk_iommu_bank_data". No functional
> change. The mtk_iommu_domain in v1 and v2 are different, we could not add
> current data as bank[0] in v1 simplistically.
> 
> Currently we have no plan to add new SoC for v1, in order to avoid affect
> v1 when we add many new features for v2, I totally separate v1 and v2 in
> this patch, there are many structures only for v2.
> 
> Signed-off-by: Yong Wu <yong.wu@...iatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

> ---
>   drivers/iommu/mtk_iommu.c    | 82 +++++++++++++++++++++++++++++++++---
>   drivers/iommu/mtk_iommu.h    | 81 -----------------------------------
>   drivers/iommu/mtk_iommu_v1.c | 29 +++++++++++++
>   3 files changed, 106 insertions(+), 86 deletions(-)
>