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Date:   Thu, 1 Apr 2021 11:36:42 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Will Deacon <will@kernel.org>
Cc:     Christoph Hellwig <hch@lst.de>, Joerg Roedel <joro@8bytes.org>,
        Li Yang <leoyang.li@nxp.com>,
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Subject: Re: [PATCH 11/18] iommu/fsl_pamu: remove the snoop_id field
Message-ID: <20210401093642.GE2934@lst.de>
References: <20210316153825.135976-1-hch@lst.de> <20210316153825.135976-12-hch@lst.de> <20210330125816.GK5908@willie-the-truck>
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On Tue, Mar 30, 2021 at 01:58:17PM +0100, Will Deacon wrote:
> pamu_config_ppaace() takes quite a few useless parameters at this stage,
> but anyway:

I'll see it it makes sense to throw in another patch at the end to cut
it down a bit more.

> Acked-by: Will Deacon <will@kernel.org>
> 
> Do you know if this driver is actually useful? Once the complexity has been
> stripped back, the stubs and default values really stand out.

Yeah.  No idea what the usefulness of this driver is.  Bascially all it
seems to do is to setup a few registers to allow access to the whole
physical memory.  But maybe that is required on this hardware to allow
for any DMA access?