linux-kernel - Re: [PATCH 2/6] arm64: dts: qcom: sm8250: Commonize PCIe pins

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Message-ID: <YMlkwzxR20p7GI7g@builder.lan>
Date:   Tue, 15 Jun 2021 21:41:07 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...ainline.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, martin.botka@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org, jamipkettunen@...ainline.org,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] arm64: dts: qcom: sm8250: Commonize PCIe pins

On Tue 15 Jun 19:58 CDT 2021, Konrad Dybcio wrote:
[..]
> diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
[..]
> @@ -3490,6 +3508,89 @@ data {
>  					bias-pull-up;
>  				};
>  			};
> +
> +			pcie0_default_state: pcie0-default {

I thought I answered the other way around (that it should be in the
board file), that said I don't think these are moving much, so I'm not
against keeping them here.

> +				pcie0_perst_default: perst {
> +					pins = "gpio79";
> +					function = "gpio";
> +					drive-strength = <2>;
> +					bias-pull-down;
> +				};
> +
> +				clkreq {
> +					pins = "gpio80";
> +					function = "pci_e0";
> +					drive-strength = <2>;
> +					bias-pull-up;
> +				};
> +
> +				wake {
> +					pins = "gpio81";
> +					function = "gpio";
> +					drive-strength = <2>;
> +					bias-pull-up;
> +				};
> +			};
[..]
> +
> +			mdm2ap_default: mdm2ap-default {

These however are presumably only present on devices with SDX55, so
please move these two to your board file.

Thanks,
Bjorn