[PATCH 09/10] ARM: sun8i: h2+: add SY8113B regulator used by Orange Pi Zero board

Icenowy Zheng
2017-07-23T10:29:41Z

Orange Pi Zero board has a SY8113B regulator, which is controlled via
GPIO and capable of outputing 1.1V when the PL6 GPIO is set to output 0
or 1.3V when the PL6 GPIO is set to input or output 1, and the output is
the power supply of the ARM cores in H2+ SoC.

Add the device tree node of this regulator and set the cpu's cpu-supply
property to it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
---
arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
index 6713d0f2b3f4..28b4433bd7f7 100644
--- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
+++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
@@ -94,6 +94,27 @@
reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>;
post-power-on-delay-ms = <200>;
};
+
+ reg_sy8113b: gpio-regulator {
+ compatible = "regulator-gpio";
+
+ regulator-name = "vdd-cpux";
+ regulator-type = "voltage";
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-ramp-delay = <50>; /* 4ms */
+
+ gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+ gpios-states = <0x1>;
+ states = <1100000 0x0
+ 1300000 0x1>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&reg_sy8113b>;
};

&ehci0 {
--
2.13.0