1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/regulator/renesas,raa215300.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Renesas RAA215300 Power Management Integrated Circuit (PMIC)
8
9 maintainers:
10 - Biju Das <biju.das.jz@bp.renesas.com>
11
12 description: |
13 The RAA215300 is a high-performance, low-cost 9-channel PMIC designed for
14 32-bit and 64-bit MCU and MPU applications. It supports DDR3, DDR3L, DDR4,
15 and LPDDR4 memory power requirements. The internally compensated regulators,
16 built-in Real-Time Clock (RTC), 32kHz crystal oscillator, and coin cell
17 battery charger provide a highly integrated, small footprint power solution
18 ideal for System-On-Module (SOM) applications. A spread spectrum feature
19 provides an ease-of-use solution for noise-sensitive audio or RF applications.
20
21 This device exposes two devices via I2C. One for the integrated RTC IP, and
22 one for everything else.
23
24 Link to datasheet:
25 https://www.renesas.com/in/en/products/power-power-management/multi-channel-power-management-ics-pmics/ssdsoc-power-management-ics-pmic-and-pmus/raa215300-high-performance-9-channel-pmic-supporting-ddr-memory-built-charger-and-rtc
26
27 properties:
28 compatible:
29 enum:
30 - renesas,raa215300
31
32 reg:
33 maxItems: 2
34
35 reg-names:
36 items:
37 - const: main
38 - const: rtc
39
40 interrupts:
41 maxItems: 1
42
43 clocks:
44 description: |
45 The clocks are optional. The RTC is disabled, if no clocks are
46 provided(either xin or clkin).
47 maxItems: 1
48
49 clock-names:
50 description: |
51 Use xin, if connected to an external crystal.
52 Use clkin, if connected to an external clock signal.
53 enum:
54 - xin
55 - clkin
56
57 required:
58 - compatible
59 - reg
60 - reg-names
61
62 additionalProperties: false
63
64 examples:
65 - |
66 /* 32.768kHz crystal */
67 x2: x2-clock {
68 compatible = "fixed-clock";
69 #clock-cells = <0>;
70 clock-frequency = <32768>;
71 };
72
73 i2c {
74 #address-cells = <1>;
75 #size-cells = <0>;
76
77 raa215300: pmic@12 {
78 compatible = "renesas,raa215300";
79 reg = <0x12>, <0x6f>;
80 reg-names = "main", "rtc";
81
82 clocks = <&x2>;
83 clock-names = "xin";
84 };
85 };
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