| Message ID | 20170723102749.17323-10-icenowy@aosc.io (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Sun, Jul 23, 2017 at 6:27 PM, Icenowy Zheng <icenowy@aosc.io> wrote: > Orange Pi Zero board has a SY8113B regulator, which is controlled via > GPIO and capable of outputing 1.1V when the PL6 GPIO is set to output 0 > or 1.3V when the PL6 GPIO is set to input or output 1, and the output is > the power supply of the ARM cores in H2+ SoC. > > Add the device tree node of this regulator and set the cpu's cpu-supply > property to it. > > Signed-off-by: Icenowy Zheng <icenowy@aosc.io> > --- > arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts > index 6713d0f2b3f4..28b4433bd7f7 100644 > --- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts > +++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts > @@ -94,6 +94,27 @@ > reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; > post-power-on-delay-ms = <200>; > }; > + > + reg_sy8113b: gpio-regulator { > + compatible = "regulator-gpio"; > + No need for the newline. > + regulator-name = "vdd-cpux"; > + regulator-type = "voltage"; > + regulator-boot-on; > + regulator-always-on; > + regulator-min-microvolt = <1100000>; > + regulator-max-microvolt = <1300000>; > + regulator-ramp-delay = <50>; /* 4ms */ You should also add "enable-active-high". The driver might not honor the GPIO_ACTIVE_HIGH flag. AFAIK this was a problem with the old GPIO API. ChenYu > + > + gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */ > + gpios-states = <0x1>; > + states = <1100000 0x0 > + 1300000 0x1>; > + }; > +}; > + > +&cpu0 { > + cpu-supply = <®_sy8113b>; > }; > > &ehci0 { > -- > 2.13.0 > > -- > You received this message because you are subscribed to the Google Groups "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscribe@googlegroups.com. > For more options, visit https://groups.google.com/d/optout.
diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts index 6713d0f2b3f4..28b4433bd7f7 100644 --- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts +++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts @@ -94,6 +94,27 @@ reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; post-power-on-delay-ms = <200>; }; + + reg_sy8113b: gpio-regulator { + compatible = "regulator-gpio"; + + regulator-name = "vdd-cpux"; + regulator-type = "voltage"; + regulator-boot-on; + regulator-always-on; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1300000>; + regulator-ramp-delay = <50>; /* 4ms */ + + gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */ + gpios-states = <0x1>; + states = <1100000 0x0 + 1300000 0x1>; + }; +}; + +&cpu0 { + cpu-supply = <®_sy8113b>; }; &ehci0 {
Orange Pi Zero board has a SY8113B regulator, which is controlled via GPIO and capable of outputing 1.1V when the PL6 GPIO is set to output 0 or 1.3V when the PL6 GPIO is set to input or output 1, and the output is the power supply of the ARM cores in H2+ SoC. Add the device tree node of this regulator and set the cpu's cpu-supply property to it. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> --- arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)