linux-kernel - Re: [PATCH 01/15] arm64: dts: qcom: Add base SM8450 DTSI

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Message-ID: <Ya91ZLytXpm9brJu@ripper>
Date:   Tue, 7 Dec 2021 06:53:24 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/15] arm64: dts: qcom: Add base SM8450 DTSI

On Tue 30 Nov 23:29 PST 2021, Vinod Koul wrote:

> This add based DTSI for SM8450 SoC and includes base description of
> CPUs, GCC, RPMHCC, UART, interuupt-controller which helps to boot to
> shell with console on boards with this SoC
> 
> Signed-off-by: Vinod Koul <vkoul@...nel.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8450.dtsi | 476 +++++++++++++++++++++++++++
>  1 file changed, 476 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/sm8450.dtsi
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
[..]
> +		qupv3_id_0: geniqup@...000 {
> +			compatible = "qcom,geni-se-qup";
> +			reg = <0x0 0x009c0000 0x0 0x2000>;
> +			clock-names = "m-ahb", "s-ahb";
> +			clocks = <&gcc GCC_QUPV3_WRAP_0_M_AHB_CLK>,
> +				 <&gcc GCC_QUPV3_WRAP_0_S_AHB_CLK>;
> +			#address-cells = <2>;
> +			#size-cells = <2>;
> +			ranges;
> +			status = "disabled";
> +
> +			uart7: serial@...000 {
> +				compatible = "qcom,geni-debug-uart";

There's nothing special about uart7 on a platform level, so my
suggestion is that you use the standard compatible of "qcom,geni-se-qup"
here and then override the compatible with "qcom,geni-debug-uart" in the
qrd.dts.

Regards,
Bjorn