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

[Sören Brinkmann]

ping? Any comments?

        Thanks,
        Sören

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.brinkm...@xilinx.com>
> ---
> 
>  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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