On Sat, Jun 25, 2016 at 05:45:10AM +0200, megous@xxxxxxxxxx wrote:
> From: Ondrej Jirman <megous@xxxxxxxxxx>
>
> Xulong Orange Pi One uses GPIO based regulator that
> switches between two voltages: 1.1V and 1.3V. The
> regulator is controlled from the PL6 pin.
>
> Signed-off-by: Ondrej Jirman <megous@xxxxxxxxxx>
> ---
> v2
> - add missing pinctrl-names for gpio-regulator
> ---
> arch/arm/boot/dts/sun8i-h3-orangepi-one.dts | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts
> index 0adf932..b1bd6b0 100644
> --- a/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts
> +++ b/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts
> @@ -88,6 +88,25 @@
> gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
> };
> };
> +
> + vdd_soc: gpio-regulator {
> + compatible = "regulator-gpio";
> + pinctrl-names = "default";
> + pinctrl-0 = <&vdd_reg_r_opc>;
> +
> + regulator-name = "soc-vdd-supply";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1300000>;
> + regulator-boot-on;
> + regulator-type = "voltage";
It should be marked as always-on.
Otherwise, if the cpufreq driver is not enabled, the regulator will be
shutdown, which is not that great :)
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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