linux-kernel - Re: [PATCH v3 3/4] arm64: dts: qcom: sc7180: align TLMM pin configuration with DT schema

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Message-ID: <CAD=FV=VsFbei4h_cwhJhReUi8Pk_C-qHu_8iDqfzf_e=C8QnXg@mail.gmail.com>
Date:   Wed, 19 Oct 2022 08:48:35 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Stephen Boyd <swboyd@...omium.org>,
        linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/4] arm64: dts: qcom: sc7180: align TLMM pin
 configuration with DT schema

Hi,

On Tue, Oct 18, 2022 at 5:14 PM 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.
>
> Merge subnodes named 'pinconf' and 'pinmux' into one entry, add function
> where missing (required by bindings for GPIOs) and reorganize overriding
> pins by boards.
>
> Split the SPI and UART configuration into separate nodes
> 1. SPI (MOSI, MISO, SCLK), SPI chip-select, SPI chip-select via GPIO,
> 2. UART per each pin: TX, RX and optional CTS/RTS.
>
> This allows each board to customize them easily without adding any new
> nodes.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>
> ---
>
> Changes since v2:
> 1. Rebase on reverted SPI CS glitch patch.
>
> Changes since v1:
> 1. Split SPI and UART nodes, after discussion with Doug.
>
> Not tested on hardware.
>
> Cc: Doug Anderson <dianders@...omium.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7180-idp.dts       | 236 +++----
>  .../boot/dts/qcom/sc7180-trogdor-coachz.dtsi  |  36 +-
>  .../dts/qcom/sc7180-trogdor-homestar.dtsi     |  47 +-
>  .../dts/qcom/sc7180-trogdor-kingoftown-r0.dts |  16 +-
>  .../dts/qcom/sc7180-trogdor-kingoftown.dtsi   |   8 +-
>  .../boot/dts/qcom/sc7180-trogdor-lazor.dtsi   |  16 +-
>  .../dts/qcom/sc7180-trogdor-mrbland-rev0.dtsi |  25 +-
>  .../boot/dts/qcom/sc7180-trogdor-mrbland.dtsi |  72 +-
>  .../qcom/sc7180-trogdor-parade-ps8640.dtsi    |  32 +-
>  .../boot/dts/qcom/sc7180-trogdor-pazquel.dtsi |   8 +-
>  .../boot/dts/qcom/sc7180-trogdor-pompom.dtsi  |  14 +-
>  .../qcom/sc7180-trogdor-quackingstick.dtsi    |  56 +-
>  .../arm64/boot/dts/qcom/sc7180-trogdor-r1.dts |   8 +-
>  .../dts/qcom/sc7180-trogdor-ti-sn65dsi86.dtsi |  16 +-
>  .../qcom/sc7180-trogdor-wormdingler-rev0.dtsi |  25 +-
>  .../dts/qcom/sc7180-trogdor-wormdingler.dtsi  |  72 +-
>  arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi  | 629 +++++++-----------
>  arch/arm64/boot/dts/qcom/sc7180.dtsi          | 597 +++++++++--------
>  18 files changed, 776 insertions(+), 1137 deletions(-)

You probably should send a v4 since this now conflicts with commit
c24c9d53e001 ("arm64: dts: qcom: correct white-space before {"), which
has landed.

In any case, this looks nice to me.

Reviewed-by: Douglas Anderson <dianders@...omium.org>

FWIW I put this on a sc7180-trogdor-coachz and the device booted up to
the browser. I didn't do massive amounts of tests, but I'm OK with:

Tested-by: Douglas Anderson <dianders@...omium.org>