From mboxrd@z Thu Jan 1 00:00:00 1970 From: Soren Brinkmann Subject: [PATCH] ARM: zynq: dt: Add a fixed regulator for CPU voltage Date: Fri, 2 May 2014 14:07:32 -0700 Message-ID: <1399064852-19569-1-git-send-email-soren.brinkmann@xilinx.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King , Michal Simek Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, git@xilinx.com, Soren Brinkmann List-Id: devicetree@vger.kernel.org To silence the warning cpufreq_cpu0: failed to get cpu0 regulator: -19 from the cpufreq driver regarding a missing regulator, add a fixed regulator to the DT. Zynq does not support voltage scaling and the CPU rail should always be supplied with 1 V, hence it is added in the SOC-level dtsi. Signed-off-by: Soren Brinkmann --- arch/arm/boot/dts/zynq-7000.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi index c1176abc34d9..64779f9d5c38 100644 --- a/arch/arm/boot/dts/zynq-7000.dtsi +++ b/arch/arm/boot/dts/zynq-7000.dtsi @@ -25,6 +25,7 @@ reg = <0>; clocks = <&clkc 3>; clock-latency = <1000>; + cpu0-supply = <®ulator_vccpint>; operating-points = < /* kHz uV */ 666667 1000000 @@ -48,6 +49,15 @@ reg = < 0xf8891000 0x1000 0xf8893000 0x1000 >; }; + regulator_vccpint: fixedregulator@0 { + compatible = "regulator-fixed"; + regulator-name = "VCCPINT"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-boot-on; + regulator-always-on; + }; + amba { compatible = "simple-bus"; #address-cells = <1>; -- 1.9.2.1.g06c4abd