[PATCH v2 5/7] arm64: dts: meson-sm1-odroid-hc4: add regulators controlled by GPIOH_8
Neil Armstrong
narmstrong at baylibre.com
Sun Jun 6 23:54:33 PDT 2021
As described in the HC4 schematics, GPIOH_8 controls the USB 5V and 12V
regulators used to power the SATA drives.
And is set as Open Drain since this GPIO doesn't support Push-Pull.
Signed-off-by: Neil Armstrong <narmstrong at baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
---
.../boot/dts/amlogic/meson-sm1-odroid-hc4.dts | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts
index 0a34b658f994..fdad6b994c88 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts
@@ -44,6 +44,32 @@ led-red {
};
};
+ /* Powers the SATA Disk 0 regulator, which is enabled when a disk load is detected */
+ p12v_0: regulator-p12v_0 {
+ compatible = "regulator-fixed";
+ regulator-name = "P12V_0";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ vin-supply = <&main_12v>;
+
+ gpio = <&gpio GPIOH_8 GPIO_OPEN_DRAIN>;
+ enable-active-high;
+ regulator-always-on;
+ };
+
+ /* Powers the SATA Disk 1 regulator, which is enabled when a disk load is detected */
+ p12v_1: regulator-p12v_1 {
+ compatible = "regulator-fixed";
+ regulator-name = "P12V_1";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ vin-supply = <&main_12v>;
+
+ gpio = <&gpio GPIOH_8 GPIO_OPEN_DRAIN>;
+ enable-active-high;
+ regulator-always-on;
+ };
+
sound {
model = "ODROID-HC4";
};
--
2.25.1
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