linux-kernel - Re: [PATCH v4 5/6] arm64: dts: qcom: sm4450-qrd: add QRD4450 uart support

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Date:   Sat, 23 Sep 2023 22:12:19 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Tengfei Fan <quic_tengfan@...cinc.com>
Cc:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        tglx@...utronix.de, maz@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        catalin.marinas@....com, will@...nel.org, geert+renesas@...der.be,
        arnd@...db.de, neil.armstrong@...aro.org, nfraprado@...labora.com,
        rafal@...ecki.pl, peng.fan@....com, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, quic_tsoni@...cinc.com,
        quic_shashim@...cinc.com, quic_kaushalk@...cinc.com,
        quic_tdas@...cinc.com, quic_tingweiz@...cinc.com,
        quic_aiquny@...cinc.com, kernel@...cinc.com
Subject: Re: [PATCH v4 5/6] arm64: dts: qcom: sm4450-qrd: add QRD4450 uart support

On Fri, 22 Sept 2023 at 11:13, Tengfei Fan <quic_tengfan@...cinc.com> wrote:
>
> Add uart support for QRD4450 for enable uart console.
>
> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sm4450-qrd.dts | 19 +++++++++++++++++--
>  1 file changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm4450-qrd.dts b/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
> index 00a1c81ca397..e354bad57a9e 100644
> --- a/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
> +++ b/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
> @@ -10,9 +10,24 @@
>         model = "Qualcomm Technologies, Inc. SM4450 QRD";
>         compatible = "qcom,sm4450-qrd", "qcom,sm4450";
>
> -       aliases { };
> +       aliases {
> +               serial0 = &uart7;
> +       };
>
>         chosen {
> -               bootargs = "console=hvc0";
> +               stdout-path = "serial0:115200n8";
>         };
>  };
> +
> +&qupv3_id_0 {
> +       status = "okay";
> +};
> +
> +&tlmm {
> +       /* Reserved for other subsystems */
> +       gpio-reserved-ranges = <0 4>, <136 1>;
> +};

Is this also related to the UART support? it looks like it is a
separate patch, which should likely have the Fixes tag

> +
> +&uart7 {
> +       status = "okay";
> +};
> --
> 2.17.1
>


-- 
With best wishes
Dmitry