linux-kernel - [PATCH v2 10/13] arm64: dts: qcom: lemans-evk: Enable SDHCI for SD Card

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Message-Id: <20250903-lemans-evk-bu-v2-10-bfa381bf8ba2@oss.qualcomm.com>
Date: Wed, 03 Sep 2025 17:17:11 +0530
From: Wasim Nazir <wasim.nazir@....qualcomm.com>
To: Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Richard Cochran <richardcochran@...il.com>
Cc: kernel@....qualcomm.com, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, netdev@...r.kernel.org,
        Monish Chunara <quic_mchunara@...cinc.com>,
        Wasim Nazir <wasim.nazir@....qualcomm.com>
Subject: [PATCH v2 10/13] arm64: dts: qcom: lemans-evk: Enable SDHCI for SD
 Card

From: Monish Chunara <quic_mchunara@...cinc.com>

Enable the SD Host Controller Interface (SDHCI) on the lemans EVK board
to support SD card for storage. Also add the corresponding regulators.

Signed-off-by: Monish Chunara <quic_mchunara@...cinc.com>
Signed-off-by: Wasim Nazir <wasim.nazir@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans-evk.dts | 43 +++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index b67b909fb97f..c9e7977466b3 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -16,6 +16,7 @@ / {
 	compatible = "qcom,lemans-evk", "qcom,qcs9100", "qcom,sa8775p";
 
 	aliases {
+		mmc1 = &sdhc;
 		serial0 = &uart10;
 	};
 
@@ -46,6 +47,28 @@ edp1_connector_in: endpoint {
 			};
 		};
 	};
+
+	vmmc_sdc: regulator-vmmc-sdc {
+		compatible = "regulator-fixed";
+
+		regulator-name = "vmmc_sdc";
+		regulator-min-microvolt = <2950000>;
+		regulator-max-microvolt = <2950000>;
+	};
+
+	vreg_sdc: regulator-vreg-sdc {
+		compatible = "regulator-gpio";
+
+		regulator-name = "vreg_sdc";
+		regulator-type = "voltage";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <2950000>;
+
+		gpios = <&expander1 7 GPIO_ACTIVE_HIGH>;
+		states = <1800000 1>, <2950000 0>;
+
+		startup-delay-us = <100>;
+	};
 };
 
 &apps_rsc {
@@ -461,6 +484,20 @@ &remoteproc_gpdsp1 {
 	status = "okay";
 };
 
+&sdhc {
+	vmmc-supply = <&vmmc_sdc>;
+	vqmmc-supply = <&vreg_sdc>;
+
+	pinctrl-0 = <&sdc_default>, <&sd_cd>;
+	pinctrl-1 = <&sdc_sleep>, <&sd_cd>;
+	pinctrl-names = "default", "sleep";
+
+	bus-width = <4>;
+	cd-gpios = <&tlmm 36 GPIO_ACTIVE_LOW>;
+
+	status = "okay";
+};
+
 &sleep_clk {
 	clock-frequency = <32768>;
 };
@@ -511,6 +548,12 @@ wake-pins {
 			bias-pull-up;
 		};
 	};
+
+	sd_cd: sd-cd-state {
+		pins = "gpio36";
+		function = "gpio";
+		bias-pull-up;
+	};
 };
 
 &uart10 {

-- 
2.51.0