linux-kernel - Re: [PATCH 2/3] arm64: dts: qcom: sm8150: add iommus to qups

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Message-ID: <YFgysqyYlAagyV7y@vkoul-mobl.Dlink>
Date:   Mon, 22 Mar 2021 11:31:22 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Caleb Connolly <caleb@...nolly.tech>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] arm64: dts: qcom: sm8150: add iommus to qups

On 20-03-21, 17:16, Caleb Connolly wrote:
> Hi Vinod,
> 
> On 16/03/2021 6:15 am, Vinod Koul wrote:
> > On 10-03-21, 16:31, Caleb Connolly wrote:
> >> Hook up the SMMU for doing DMA over i2c. Some peripherals like
> >> touchscreens easily exceed 32-bytes per transfer, causing errors and
> >> lockups without this.
> > Why not squash this to patch 1..?
> 
> I thought it made more sense to separate these patches to keep the 
> history a bit cleaner. I can squash them if you'd prefer.

The nodes should be typically added in a single patch, maybe Bjorn is
fine with this ;-)

-- 
~Vinod