linux-kernel - Re: [PATCH v3 2/2] iommu: add Unisoc iommu basic driver

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Message-ID: <CAAfSe-sKqzub08kBgYNimBwbaf5s-Ed=Ef3PcMvA_8YTYsDwUw@mail.gmail.com>
Date:   Thu, 4 Feb 2021 11:18:16 +0800
From:   Chunyan Zhang <zhang.lyra@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Robin Murphy <robin.murphy@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Joerg Roedel <joro@...tes.org>,
        Linux IOMMU <iommu@...ts.linux-foundation.org>,
        DTML <devicetree@...r.kernel.org>,
        Baolin Wang <baolin.wang7@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Orson Zhai <orsonzhai@...il.com>,
        Sheng Xu <sheng.xu@...soc.com>,
        Chunyan Zhang <chunyan.zhang@...soc.com>
Subject: Re: [PATCH v3 2/2] iommu: add Unisoc iommu basic driver

On Thu, 4 Feb 2021 at 01:44, Randy Dunlap <rdunlap@...radead.org> wrote:
>
> On 2/3/21 1:07 AM, Chunyan Zhang wrote:
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index 192ef8f61310..99e7712f3903 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
> > @@ -408,4 +408,16 @@ config VIRTIO_IOMMU
> >
> >         Say Y here if you intend to run this kernel as a guest.
> >
> > +config SPRD_IOMMU
> > +     tristate "Unisoc IOMMU Support"
> > +     depends on ARCH_SPRD || COMPILE_TEST
> > +     select IOMMU_API
> > +     help
> > +       Support for IOMMU on Unisoc's SoCs, this iommu can be used by
>
>         s/iommu/IOMMU/ please

Sure, thanks.

Chunyan

>
> > +       Unisoc's multimedia devices, such as display, Image codec(jpeg)
> > +       and a few signal processors, including VSP(video), GSP(graphic),
> > +       ISP(image), and CPP(camera pixel processor), etc.
> > +
> > +       Say Y here if you want to use the multimedia devices listed above.
>
>
> --
> ~Randy