On Mon, Oct 29, 2018 at 04:22:05PM +0000, Pascal PAILLET-LME wrote:
> The STPMIC1 regulators supply power to the application processor as well as
> to the external system peripherals such as DDR, Flash memories and system
> devices.
>
> Signed-off-by: Pascal Paillet <p.paillet@xxxxxx>
> ---
> changes in v5:
> * describe regulator-active-discharge is available for power switches
> * remove interrupt parents
>
> .../bindings/regulator/st,stpmic1-regulator.txt | 67 ++++++++++++++++++++++
> 1 file changed, 67 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt
>
> diff --git a/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt b/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt
> new file mode 100644
> index 0000000..5adc938
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt
> @@ -0,0 +1,67 @@
> +STMicroelectronics STPMIC1 Voltage regulators
> +
> +Regulator Nodes are optional depending on needs.
> +
> +Available Regulators in STPMIC1 device are:
> + - buck1 for Buck BUCK1
> + - buck2 for Buck BUCK2
> + - buck3 for Buck BUCK3
> + - buck4 for Buck BUCK4
> + - ldo1 for LDO LDO1
> + - ldo2 for LDO LDO2
> + - ldo3 for LDO LDO3
> + - ldo4 for LDO LDO4
> + - ldo5 for LDO LDO5
> + - ldo6 for LDO LDO6
> + - vref_ddr for LDO Vref DDR
> + - boost for Buck BOOST
> + - pwr_sw1 for VBUS_OTG switch
> + - pwr_sw2 for SW_OUT switch
> +
> +Switches are fixed voltage regulators with only enable/disable capability.
> +
> +Optional properties:
> +- st,mask-reset: mask reset for this regulator: the regulator configuration
> + is maintained during pmic reset.
> +- regulator-pull-down: enable high pull down
> + if not specified light pull down is used
> +- regulator-over-current-protection:
> + if set, all regulators are switched off in case of over-current detection
> + on this regulator,
> + if not set, the driver only sends an over-current event.
> +- interrupt-parent: phandle to the parent interrupt controller
This is not needed as the parent is a parent node with
'interrupt-controller' property.
Otherwise,
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> +- interrupts: index of current limit detection interrupt
> +- <regulator>-supply: phandle to the parent supply/regulator node
> + each regulator supply can be described except vref_ddr.
> +- regulator-active-discharge: can be used on pwr_sw1 and pwr_sw2.
> +
> +Example:
> +regulators {
> + compatible = "st,stpmic1-regulators";
> +
> + ldo6-supply = <&v3v3>;
> +
> + vdd_core: buck1 {
> + regulator-name = "vdd_core";
> + interrupts = <IT_CURLIM_BUCK1 0>;
> + st,mask-reset;
> + regulator-pull-down;
> + regulator-min-microvolt = <700000>;
> + regulator-max-microvolt = <1200000>;
> + };
> +
> + v3v3: buck4 {
> + regulator-name = "v3v3";
> + interrupts = <IT_CURLIM_BUCK4 0>;
> +
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + v1v8: ldo6 {
> + regulator-name = "v1v8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-over-current-protection;
> + };
> +};
> --
> 1.9.1
