Re: [PATCH] ARM: zynq: dt: Add a fixed regulator for CPU voltage

From: SÃren Brinkmann
Date: Thu May 15 2014 - 10:59:31 EST

ping? Any comments?

Thanks,
SÃren

On Fri, 2014-05-02 at 02:07PM -0700, Soren Brinkmann wrote:
> 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 <soren.brinkmann@xxxxxxxxxx>
> ---
>
> 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 = <&regulator_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
>
>

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