Document devicetree bindings for ROHM BD71837 PMIC MFD. Signed-off-by: Matti Vaittinen <matti.vaitti...@fi.rohmeurope.com> Reviewed-by: Rob Herring <r...@kernel.org> Acked-for-MFD-by: Lee Jones <lee.jo...@linaro.org> --- .../devicetree/bindings/mfd/rohm,bd71837-pmic.txt | 62 ++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd71837-pmic.txt
diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71837-pmic.txt b/Documentation/devicetree/bindings/mfd/rohm,bd71837-pmic.txt new file mode 100644 index 000000000000..3ca56fdb5ffe --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71837-pmic.txt @@ -0,0 +1,62 @@ +* ROHM BD71837 Power Management Integrated Circuit bindings + +BD71837MWV is a programmable Power Management IC for powering single-core, +dual-core, and quad-core SoCs such as NXP-i.MX 8M. It is optimized for +low BOM cost and compact solution footprint. It integrates 8 Buck +egulators and 7 LDOs to provide all the power rails required by the SoC and +the commonly used peripherals. + +Datasheet for PMIC is available at: +https://www.rohm.com/datasheet/BD71837MWV/bd71837mwv-e + +Required properties: + - compatible : Should be "rohm,bd71837". + - reg : I2C slave address. + - interrupt-parent : Phandle to the parent interrupt controller. + - interrupts : The interrupt line the device is connected to. + - clocks : The parent clock connected to PMIC. If this is missing + 32768 KHz clock is assumed. + - #clock-cells : Should be 0. + - regulators: : List of child nodes that specify the regulators. + Please see ../regulator/rohm,bd71837-regulator.txt + +Optional properties: +- clock-output-names : Should contain name for output clock. + +Example: + + /* external oscillator node */ + osc: oscillator { + compatible = "fixed-clock"; + #clock-cells = <1>; + clock-frequency = <32768>; + clock-output-names = "osc"; + }; + + pmic: pmic@4b { + compatible = "rohm,bd71837"; + reg = <0x4b>; + interrupt-parent = <&gpio1>; + interrupts = <29 GPIO_ACTIVE_LOW>; + interrupt-names = "irq"; + #clock-cells = <0>; + clocks = <&osc 0>; + clock-output-names = "bd71837-32k-out"; + + regulators { + buck1: BUCK1 { + regulator-name = "buck1"; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1300000>; + regulator-boot-on; + regulator-ramp-delay = <1250>; + }; + }; + }; + + /* Clock consumer node */ + rtc@0 { + compatible = "company,my-rtc"; + clock-names = "my-clock"; + clocks = <&pmic>; + }; -- 2.14.3
