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Commit a15b80fb authored by Timo Sigurdsson's avatar Timo Sigurdsson Committed by Maxime Ripard
Browse files

ARM: dts: sunxi: Add regulators for LeMaker BananaPi 



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: default avatarTimo Sigurdsson <public_timo.s@silentcreek.de>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
parent 52095d17

arch/arm/boot/dts/sun7i-a20-bananapi.dts

+41 −4
Original line number Diff line number Diff line
@@ -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";

};