From mboxrd@z Thu Jan 1 00:00:00 1970 From: Siarhei Siamashka Subject: [PATCH 3/3] ARM: dts: sun4i: Add AXP209 PMU regulators for pcDuino1/2 Date: Sun, 4 Oct 2015 21:58:48 +0300 Message-ID: <1443985128-23137-4-git-send-email-siarhei.siamashka@gmail.com> References: <1443985128-23137-1-git-send-email-siarhei.siamashka@gmail.com> Reply-To: siarhei.siamashka-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: In-Reply-To: <1443985128-23137-1-git-send-email-siarhei.siamashka-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Maxime Ripard Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree , linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, Zoltan HERPAI List-Id: devicetree@vger.kernel.org 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 --- 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@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>; -- 2.4.9