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authorIcenowy Zheng <icenowy@aosc.io>2018-07-11 16:44:50 +0300
committerMaxime Ripard <maxime.ripard@bootlin.com>2018-07-12 10:23:20 +0300
commit51ecdd779e31ed45709bc32ff7efd4b28c3ce083 (patch)
tree62d2a52332f54c777f22cfd9d50617702c02f791 /arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
parent7389172fc3ed5c4c6757e853d7d5bd2cfc6d204b (diff)
downloadlinux-51ecdd779e31ed45709bc32ff7efd4b28c3ce083.tar.xz
ARM: sun8i: h3: add SY8113B regulator on Banana Pi M2 Zero board
Banana Pi M2 Zero board has a SY8113B regulator, which is controlled via GPIO and capable of outputing 1.1V when the PL1 GPIO is set to output 0 or 1.1V when the PL6 GPIO is set to input or output 1, and the output is the power supply of the ARM cores in H3 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> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Diffstat (limited to 'arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts')
-rw-r--r--arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
index 7d01f9322658..1db2541135a7 100644
--- a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
+++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
@@ -48,6 +48,23 @@
};
};
+ reg_vdd_cpux: vdd-cpux-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 1 GPIO_ACTIVE_HIGH>; /* PL1 */
+ enable-active-high;
+ gpios-states = <0x1>;
+ states = <1100000 0x0
+ 1300000 0x1>;
+ };
+
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
pinctrl-names = "default";
@@ -55,6 +72,10 @@
};
};
+&cpu0 {
+ cpu-supply = <&reg_vdd_cpux>;
+};
+
&ehci0 {
status = "okay";
};