linux-kernel - [PATCH] arm64: dts: qcom: sm7225-fairphone-fp4: Enable SD card

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Message-Id: <20221110151507.53650-1-luca.weiss@fairphone.com>
Date:   Thu, 10 Nov 2022 16:15:06 +0100
From:   Luca Weiss <luca.weiss@...rphone.com>
To:     linux-arm-msm@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Luca Weiss <luca.weiss@...rphone.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: sm7225-fairphone-fp4: Enable SD card

Fairphone 4 uses sdhc_2 for the SD card, configure the pins for it and
enable it.

The regulators which are exclusively used for SDHCI have their maximum
voltage decreased to what downstream sets on the consumer side, like on
many other platforms and allowed to set the load.

Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
---
 .../boot/dts/qcom/sm7225-fairphone-fp4.dts    | 39 ++++++++++++++++++-
 1 file changed, 37 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
index 30c94fd4fe61..1cb14051ab1b 100644
--- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
+++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
@@ -279,8 +279,12 @@ vreg_l5e: ldo5 {
 
 		vreg_l6e: ldo6 {
 			regulator-min-microvolt = <1700000>;
-			regulator-max-microvolt = <3544000>;
+			regulator-max-microvolt = <2950000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+			regulator-allow-set-load;
+			regulator-allowed-modes =
+				<RPMH_REGULATOR_MODE_LPM
+				 RPMH_REGULATOR_MODE_HPM>;
 		};
 
 		vreg_l7e: ldo7 {
@@ -297,8 +301,12 @@ vreg_l8e: ldo8 {
 
 		vreg_l9e: ldo9 {
 			regulator-min-microvolt = <2700000>;
-			regulator-max-microvolt = <3544000>;
+			regulator-max-microvolt = <2960000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+			regulator-allow-set-load;
+			regulator-allowed-modes =
+				<RPMH_REGULATOR_MODE_LPM
+				 RPMH_REGULATOR_MODE_HPM>;
 		};
 
 		vreg_l10e: ldo10 {
@@ -424,6 +432,33 @@ &qupv3_id_1 {
 	status = "okay";
 };
 
+&sdc2_off_state {
+	sd-cd-pins {
+		pins = "gpio94";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+};
+
+&sdc2_on_state {
+	sd-cd-pins {
+		pins = "gpio94";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
+};
+
+&sdhc_2 {
+	vmmc-supply = <&vreg_l9e>;
+	vqmmc-supply = <&vreg_l6e>;
+
+	cd-gpios = <&tlmm 94 GPIO_ACTIVE_LOW>;
+
+	status = "okay";
+};
+
 &tlmm {
 	gpio-reserved-ranges = <13 4>, <56 2>;
 };
-- 
2.38.1