linux-kernel - Re: [PATCH 3/4] arm64: dts: qcom: qdu1000: Add SDHCI1 pin configuration to DTSI

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Date:   Fri, 19 May 2023 15:45:38 +0530
From:   Bhupesh Sharma <bhupesh.sharma@...aro.org>
To:     Komal Bajaj <quic_kbajaj@...cinc.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 3/4] arm64: dts: qcom: qdu1000: Add SDHCI1 pin
 configuration to DTSI

On 5/19/23 2:21 PM, Komal Bajaj wrote:
> Add required pins for SDHCI1, so that the interface can work reliably.
> 
> Signed-off-by: Komal Bajaj <quic_kbajaj@...cinc.com>
> ---
>   arch/arm64/boot/dts/qcom/qdu1000.dtsi | 50 +++++++++++++++++++++++++++
>   1 file changed, 50 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qdu1000.dtsi b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
> index 6113def66a08..556942bfca5d 100644
> --- a/arch/arm64/boot/dts/qcom/qdu1000.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
> @@ -1160,6 +1160,56 @@
>   				pins = "gpio31";
>   				function = "gpio";
>   			};
> +
> +			sdc1_on_state: sdc1-on-state {
> +				clk-pins {
> +					pins = "sdc1_clk";
> +					drive-strength = <16>;
> +					bias-disable;
> +				};
> +
> +				cmd-pins {
> +					pins = "sdc1_cmd";
> +					drive-strength = <10>;
> +					bias-pull-up;
> +				};
> +
> +				data-pins {
> +					pins = "sdc1_data";
> +					drive-strength = <10>;
> +					bias-pull-up;
> +				};
> +
> +				rclk-pins {
> +					pins = "sdc1_rclk";
> +					bias-pull-down;
> +				};
> +			};
> +
> +			sdc1_off_state: sdc1-off-state {
> +				clk-pins {
> +					pins = "sdc1_clk";
> +					drive-strength = <2>;
> +					bias-disable;
> +				};
> +
> +				cmd-pins {
> +					pins = "sdc1_cmd";
> +					drive-strength = <2>;
> +					bias-pull-up;
> +				};
> +
> +				data-pins {
> +					pins = "sdc1_data";
> +					drive-strength = <2>;
> +					bias-pull-up;
> +				};
> +
> +				rclk-pins {
> +					pins = "sdc1_rclk";
> +					bias-pull-down;
> +				};
> +			};
>   		};
> 
>   		apps_smmu: iommu@...00000 {
> --
> 2.17.1

Reviewed-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>

Thanks.