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ARM: dts: sunxi: Add regulators for LeMaker BananaPi

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sun7i-a20-bananapi.dts doesn't contain regulator nodes for the AXP209 PMU
driver, so add them to allow for voltage-scaling with cpufreq-dt. Also
add board-specific OPP to use slightly higher voltages at lower
frequencies since Kevin Hilman reported that not all BananaPi boards run
stable at the default voltages inherited by sun7i-a20.dtsi.

Signed-off-by: Timo Sigurdsson <public_timo.s@silentcreek.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Timo Sigurdsson 2015-10-08 00:18:36 +02:00 committed by Maxime Ripard
parent 52095d179c
commit a15b80fb0a
1 changed files with 41 additions and 4 deletions
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45
arch/arm/boot/dts/sun7i-a20-bananapi.dts
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@ -92,6 +92,20 @@
status = "okay";
};
&cpu0 {
cpu-supply = <&reg_dcdc2>;
operating-points = <
/* kHz uV */
960000 1400000
912000 1400000
864000 1350000
720000 1250000
528000 1150000
312000 1100000
144000 1050000
>;
};
&ehci0 {
status = "okay";
};
@ -119,13 +133,9 @@
status = "okay";
axp209: pmic@34 {
compatible = "x-powers,axp209";
reg = <0x34>;
interrupt-parent = <&nmi_intc>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <1>;
};
};
@ -182,6 +192,33 @@
};
};
#include "axp209.dtsi"
&reg_dcdc2 {
regulator-always-on;
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1400000>;
regulator-name = "vdd-cpu";
};
&reg_dcdc3 {
regulator-always-on;
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1400000>;
regulator-name = "vdd-int-dll";
};
&reg_ldo1 {
regulator-name = "vdd-rtc";
};
&reg_ldo2 {
regulator-always-on;
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-name = "avcc";
};
&reg_usb1_vbus {
status = "okay";
};