[PATCH 3/3] ARM: dts: sun4i: Add AXP209 PMU regulators for pcDuino1/2
From: Siarhei Siamashka <hidden>
Date: 2015-10-04 18:58:48
Also in:
linux-devicetree
Subsystem:
the rest · Maintainer:
Linus Torvalds
Possibly related (same subject, not in this thread)
- 2015-10-05 · Re: [PATCH 3/3] ARM: dts: sun4i: Add AXP209 PMU regulators for pcDuino1/2 · Maxime Ripard <hidden>
This allows voltage-scaling with cpufreq-dt. The reliability of voltage-scaling has been checked by reducing the voltage of all operating points by 0.025V (for extra safety headroom) and running libjpeg-turbo decoding tests on 5 pcDuino2 boards. It means that the standard sun4i voltages should be perfectly fine too. Signed-off-by: Siarhei Siamashka <redacted> --- arch/arm/boot/dts/sun4i-a10-pcduino.dts | 35 +++++++++++++++++++++++++++++---- 1 file changed, 31 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/sun4i-a10-pcduino.dts b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
index c9b9330..55714d0 100644
--- a/arch/arm/boot/dts/sun4i-a10-pcduino.dts
+++ b/arch/arm/boot/dts/sun4i-a10-pcduino.dts@@ -104,6 +104,10 @@ }; }; +&cpu0 { + cpu-supply = <®_dcdc2>; +}; + &ehci0 { status = "okay"; };
@@ -129,12 +133,8 @@ status = "okay"; axp209: pmic at 34 { - compatible = "x-powers,axp209"; reg = <0x34>; interrupts = <0>; - - interrupt-controller; - #interrupt-cells = <1>; }; };
@@ -191,6 +191,33 @@ }; }; +#include "axp209.dtsi" + +®_dcdc2 { + regulator-always-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-cpu"; +}; + +®_dcdc3 { + regulator-always-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-int-dll"; +}; + +®_ldo1 { + regulator-name = "vdd-rtc"; +}; + +®_ldo2 { + regulator-always-on; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-name = "avcc"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_pins_a>;
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2.4.9