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1 | * ROHM BD71837 Power Management Integrated Circuit bindings | ||
2 | |||
3 | BD71837MWV is a programmable Power Management IC for powering single-core, | ||
4 | dual-core, and quad-core SoCs such as NXP-i.MX 8M. It is optimized for | ||
5 | low BOM cost and compact solution footprint. It integrates 8 Buck | ||
6 | egulators and 7 LDOs to provide all the power rails required by the SoC and | ||
7 | the commonly used peripherals. | ||
8 | |||
9 | Datasheet for PMIC is available at: | ||
10 | https://www.rohm.com/datasheet/BD71837MWV/bd71837mwv-e | ||
11 | |||
12 | Required properties: | ||
13 | - compatible : Should be "rohm,bd71837". | ||
14 | - reg : I2C slave address. | ||
15 | - interrupt-parent : Phandle to the parent interrupt controller. | ||
16 | - interrupts : The interrupt line the device is connected to. | ||
17 | - clocks : The parent clock connected to PMIC. If this is missing | ||
18 | 32768 KHz clock is assumed. | ||
19 | - #clock-cells : Should be 0. | ||
20 | - regulators: : List of child nodes that specify the regulators. | ||
21 | Please see ../regulator/rohm,bd71837-regulator.txt | ||
22 | |||
23 | Optional properties: | ||
24 | - clock-output-names : Should contain name for output clock. | ||
25 | |||
26 | Example: | ||
27 | |||
28 | /* external oscillator node */ | ||
29 | osc: oscillator { | ||
30 | compatible = "fixed-clock"; | ||
31 | #clock-cells = <1>; | ||
32 | clock-frequency = <32768>; | ||
33 | clock-output-names = "osc"; | ||
34 | }; | ||
35 | |||
36 | pmic: pmic@4b { | ||
37 | compatible = "rohm,bd71837"; | ||
38 | reg = <0x4b>; | ||
39 | interrupt-parent = <&gpio1>; | ||
40 | interrupts = <29 GPIO_ACTIVE_LOW>; | ||
41 | interrupt-names = "irq"; | ||
42 | #clock-cells = <0>; | ||
43 | clocks = <&osc 0>; | ||
44 | clock-output-names = "bd71837-32k-out"; | ||
45 | |||
46 | regulators { | ||
47 | buck1: BUCK1 { | ||
48 | regulator-name = "buck1"; | ||
49 | regulator-min-microvolt = <700000>; | ||
50 | regulator-max-microvolt = <1300000>; | ||
51 | regulator-boot-on; | ||
52 | regulator-ramp-delay = <1250>; | ||
53 | }; | ||
54 | }; | ||
55 | }; | ||
56 | |||
57 | /* Clock consumer node */ | ||
58 | rtc@0 { | ||
59 | compatible = "company,my-rtc"; | ||
60 | clock-names = "my-clock"; | ||
61 | clocks = <&pmic>; | ||
62 | }; | ||