1 # SPDX-License-Identifier: GPL-2.0-only OR BSD
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mfd/rohm,bd
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: ROHM BD9576MUF and BD9573MUF Power Mana
8
9 maintainers:
10 - Matti Vaittinen <mazziesaccount@gmail.com>
11
12 description: |
13 BD9576MUF and BD9573MUF are power management
14 powering the R-Car series processors.
15 The IC provides 6 power outputs with configu
16 monitoring. A watchdog logic with slow ping/
17
18 properties:
19 compatible:
20 enum:
21 - rohm,bd9576
22 - rohm,bd9573
23
24 reg:
25 description:
26 I2C slave address.
27 maxItems: 1
28
29 interrupts:
30 maxItems: 1
31
32 rohm,vout1-en-low:
33 description:
34 BD9576 and BD9573 VOUT1 regulator enable
35 controlled by a GPIO. This is dictated b
36 the PMIC startup. If vout1-en is LOW dur
37 enable state is controlled via this pin.
38 is wired to be down at PMIC start-up.
39 type: boolean
40
41 rohm,vout1-en-gpios:
42 description:
43 GPIO specifier to specify the GPIO conne
44 state control.
45 maxItems: 1
46
47 rohm,ddr-sel-low:
48 description:
49 The BD9576 and BD9573 output voltage for
50 the ddr-sel pin low or high. Set this pr
51 type: boolean
52
53 rohm,watchdog-enable-gpios:
54 description: The GPIO line used to enable
55 maxItems: 1
56
57 rohm,watchdog-ping-gpios:
58 description: The GPIO line used to ping th
59 maxItems: 1
60
61 rohm,hw-timeout-ms:
62 maxItems: 2
63 description:
64 Watchdog timeout in milliseconds. If sin
65 the maximum timeout. Eg. if pinging watc
66 limit the watchdog will be triggered. If
67 is configured in "window mode". Then fir
68 Eg. if watchdog is pinged sooner than th
69 When two values is given the second valu
70 # (HW) minimum for short timeout is 2ms,
71 # (HW) minimum for max timeout is 4ms, m
72
73 regulators:
74 $ref: /schemas/regulator/rohm,bd9576-regul
75 description:
76 List of child nodes that specify the reg
77
78 required:
79 - compatible
80 - reg
81 - regulators
82
83 additionalProperties: false
84
85 examples:
86 - |
87 #include <dt-bindings/gpio/gpio.h>
88 #include <dt-bindings/leds/common.h>
89 i2c {
90 #address-cells = <1>;
91 #size-cells = <0>;
92 pmic: pmic@30 {
93 compatible = "rohm,bd9576";
94 reg = <0x30>;
95 rohm,vout1-en-low;
96 rohm,vout1-en-gpios = <&gpio2 6 GP
97 rohm,ddr-sel-low;
98 rohm,watchdog-enable-gpios = <&gpi
99 rohm,watchdog-ping-gpios = <&gpio2
100 rohm,hw-timeout-ms = <150>, <2300>
101
102 regulators {
103 boost1: regulator-vd50 {
104 regulator-name = "VD50";
105 };
106 buck1: regulator-vd18 {
107 regulator-name = "VD18";
108 };
109 buck2: regulator-vdddr {
110 regulator-name = "VDDDR";
111 };
112 buck3: regulator-vd10 {
113 regulator-name = "VD10";
114 };
115 ldo: regulator-voutl1 {
116 regulator-name = "VOUTL1";
117 };
118 sw: regulator-vouts1 {
119 regulator-name = "VOUTS1";
120 };
121 };
122 };
123 };
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