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Message-ID: <CAD=FV=UjwDkgXXmVcV-XNsPKOGh=TVsQexC0YQoU-_fz==y+UQ@mail.gmail.com>
Date:   Fri, 9 Dec 2022 09:53:25 -0800
From:   Doug Anderson <dianders@...omium.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/3] arm64: dts: qcom: sdm845: align TLMM pin
 configuration with DT schema

Hi,

On Fri, Dec 9, 2022 at 2:25 AM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 02/12/2022 17:53, Doug Anderson wrote:
> > Hi,
> >
> > On Fri, Dec 2, 2022 at 7:57 AM Krzysztof Kozlowski
> > <krzysztof.kozlowski@...aro.org> wrote:
> >>
> >> DT schema expects TLMM pin configuration nodes to be named with
> >> '-state' suffix and their optional children with '-pins' suffix.
> >>
> >> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> >>
> >> ---
> >>
> >> Cc: Doug Anderson <dianders@...omium.org>
> >>
> >> Tested on Qualcomm RB3. Please kndly test a bit more on other devices.
> >> This should not have an functional impact.
> >>
> >> Changes since v2:
> >> 1. Bring back UART6 4-pin bias/drive strength to DTSI.
> >
> > Just to be clear, it doesn't actually belong in the DTSI, but it was
> > there before your patch and it's fine if your patch series doesn't fix
> > the whole world. I'm OK with this one staying in the DTSI for now just
> > to keep things simpler.
> >
> > One change missing in v3 that I would have expected based on our
> > discussion in the previous version would be to "Add UART3 4-pin mux
> > settings for use in db845c." I think you said you would do this, but I
> > don't see it done.
>
> Hm, I don't recall that. Changing db845c to usage of RTS/CTS is
> independent problem, not related to fixes or aligning with DT schema.

It was in the message:

https://lore.kerne.org/r/68bcdf25-e8e3-f817-f213-efb0bce3f43a@linaro.org

I said:

> FWIW, I would have expected that the SoC dtsi file would get a "4-pin"
> definition (similar to what you did with qup_uart6_4pin) and then we'd
> use that here.

You said:

> Sure.

-Doug

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