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    Subject[PATCH V2 3/8] dt-bindings: regulator: document stpmic1 pmic regulators
    Date
    From: pascal paillet <p.paillet@st.com>

    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@st.com>
    ---
    changes in v2:
    * the hardware component has been renamed from stpmu1 to stpmic1 !
    * replace _ with - in properties name
    * remove deprecated regulator-compatible from the example
    Rob, the st,mask_reset name is taken from the data-sheet. I have modified the
    description. I hope there is no confusion with bit masking know.

    .../bindings/regulator/st,stpmic1-regulator.txt | 68 ++++++++++++++++++++++
    1 file changed, 68 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..a3f4762
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt
    @@ -0,0 +1,68 @@
    +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
    +- 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.
    +
    +Example:
    +regulators {
    + compatible = "st,stpmic1-regulators";
    +
    + ldo6-supply = <&v3v3>;
    +
    + vdd_core: buck1 {
    + regulator-name = "vdd_core";
    + interrupts = <IT_CURLIM_BUCK1 0>;
    + interrupt-parent = <&pmic>;
    + st,mask-reset;
    + regulator-pull-down;
    + regulator-min-microvolt = <700000>;
    + regulator-max-microvolt = <1200000>;
    + };
    +
    + v3v3: buck4 {
    + regulator-name = "v3v3";
    + interrupts = <IT_CURLIM_BUCK4 0>;
    + interrupt-parent = <&mypmic>;
    +
    + 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
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