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From:   Stephen Boyd <swboyd@chromium.org>
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Date:   Tue, 17 May 2022 13:06:05 -0700
Message-ID: <CAE-0n50rUW7Lqk4CwfSUgKYEJzwjXuVohAnbj9uKA=kEkXikyw@mail.gmail.com>
Subject: Re: [PATCH] arm64: dts: qcom: sc7180: Remove ipa_fw_mem node on trogdor
To:     Alex Elder <elder@linaro.org>, Andy Gross <agross@kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>
Cc:     linux-kernel@vger.kernel.org, patches@lists.linux.dev,
        linux-arm-msm@vger.kernel.org, Matthias Kaehlcke <mka@chromium.org>
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Quoting Alex Elder (2022-05-17 12:51:34)
> On 5/17/22 2:33 PM, Stephen Boyd wrote:
> > We don't use this carveout on trogdor boards, and having it defined in
> > the sc7180 SoC file causes an overlap message to be printed at boot.
> >
> >   OF: reserved mem: OVERLAP DETECTED!
> >   memory@86000000 (0x0000000086000000--0x000000008ec00000) overlaps with memory@8b700000 (0x000000008b700000--0x000000008b710000)
> >
> > Delete the node in the trogdor dtsi file to fix the overlap problem and
> > remove the error message.'
>
> Is the mpss_mem node (which defines 0x86000000-0x8ec00000) correct?

I think it is. Modem is working for me.

>
> You're right, we don't use that memory on Chrome OS, but I just
> wondered whether the other node might also have a problem.

What sort of problem are you thinking about?

>
> I don't actually know...  Bjorn, do you?
>