linux-kernel - [PATCH v2 3/3] arm64: dts: qcom: sdx75-idp: add SDHCI for SD Card

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Date: Thu, 23 May 2024 17:33:37 +0530
From: Naina Mehta <quic_nainmeht@...cinc.com>
To: <ulf.hansson@...aro.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <bhupesh.sharma@...aro.org>
CC: <linux-mmc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <quic_nainmeht@...cinc.com>
Subject: [PATCH v2 3/3] arm64: dts: qcom: sdx75-idp: add SDHCI for SD Card

Enable SDHCI on sdx75-idp to support SD card.
Also add the required regulators.

Signed-off-by: Naina Mehta <quic_nainmeht@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sdx75-idp.dts | 45 ++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdx75-idp.dts b/arch/arm64/boot/dts/qcom/sdx75-idp.dts
index f76e72fb2072..fde16308c7e2 100644
--- a/arch/arm64/boot/dts/qcom/sdx75-idp.dts
+++ b/arch/arm64/boot/dts/qcom/sdx75-idp.dts
@@ -41,6 +41,29 @@
 
 		vin-supply = <&vph_ext>;
 	};
+
+	reg_2v952_vcc: regulator-2v952-vcc {
+		compatible = "regulator-gpio";
+		regulator-name = "2v952_vcc";
+		regulator-min-microvolt = <1650000>;
+		regulator-max-microvolt = <3600000>;
+		enable-gpios = <&tlmm 102 GPIO_ACTIVE_HIGH>;
+		gpios = <&tlmm 84 GPIO_ACTIVE_HIGH>;
+		states = <1650000 0>, <3600000 1>;
+		startup-delay-us = <5000>;
+		enable-active-high;
+		regulator-boot-on;
+
+		vin-supply = <&vph_ext>;
+	};
+
+	reg_2v95_vdd: regulator-2v95-vdd {
+		compatible = "regulator-fixed";
+		regulator-name = "2v95_vdd";
+		regulator-min-microvolt = <2950000>;
+		regulator-max-microvolt = <2950000>;
+		vin-supply = <&reg_2v952_vcc>;
+	};
 };
 
 &apps_rsc {
@@ -259,8 +282,30 @@
 	status = "okay";
 };
 
+&sdhc {
+	cd-gpios = <&tlmm 103 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&reg_2v95_vdd>;
+	vqmmc-supply = <&reg_2v952_vcc>;
+	bus-width = <4>;
+	no-sdio;
+	no-mmc;
+
+	pinctrl-0 = <&sdc1_default &sd_cd>;
+	pinctrl-1 = <&sdc1_sleep &sd_cd>;
+	pinctrl-names = "default", "sleep";
+
+	status = "okay";
+};
+
 &tlmm {
 	gpio-reserved-ranges = <110 6>;
+
+	sd_cd: sd-cd-state {
+		pins = "gpio103";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
 };
 
 &uart1 {
-- 
2.17.1