xref: /linux/Documentation/devicetree/bindings/iio/adc/sprd,sc2720-adc.yaml (revision 24bce201d79807b668bf9d9e0aca801c5c0d5f78) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/adc/sprd,sc2720-adc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Spreadtrum SC27XX series PMICs ADC binding
8
9maintainers:
10  - Baolin Wang <baolin.wang7@gmail.com>
11
12description:
13  Supports the ADC found on these PMICs.
14
15properties:
16  compatible:
17    enum:
18      - sprd,sc2720-adc
19      - sprd,sc2721-adc
20      - sprd,sc2723-adc
21      - sprd,sc2730-adc
22      - sprd,sc2731-adc
23      - sprd,ump9620-adc
24
25  reg:
26    maxItems: 1
27
28  interrupts:
29    maxItems: 1
30
31  "#io-channel-cells":
32    const: 1
33
34  hwlocks:
35    maxItems: 1
36
37  nvmem-cells: true
38
39  nvmem-cell-names: true
40
41allOf:
42  - if:
43      not:
44        properties:
45          compatible:
46            contains:
47              enum:
48                - sprd,ump9620-adc
49    then:
50      properties:
51        nvmem-cells:
52          maxItems: 2
53        nvmem-cell-names:
54          items:
55            - const: big_scale_calib
56            - const: small_scale_calib
57
58    else:
59      properties:
60        nvmem-cells:
61          maxItems: 6
62        nvmem-cell-names:
63          items:
64            - const: big_scale_calib1
65            - const: big_scale_calib2
66            - const: small_scale_calib1
67            - const: small_scale_calib2
68            - const: vbat_det_cal1
69            - const: vbat_det_cal2
70
71required:
72  - compatible
73  - reg
74  - interrupts
75  - "#io-channel-cells"
76  - hwlocks
77  - nvmem-cells
78  - nvmem-cell-names
79
80additionalProperties: false
81
82examples:
83  - |
84    #include <dt-bindings/interrupt-controller/irq.h>
85    pmic {
86        #address-cells = <1>;
87        #size-cells = <0>;
88        adc@480 {
89            compatible = "sprd,sc2731-adc";
90            reg = <0x480>;
91            interrupt-parent = <&sc2731_pmic>;
92            interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
93            #io-channel-cells = <1>;
94            hwlocks = <&hwlock 4>;
95            nvmem-cells = <&adc_big_scale>, <&adc_small_scale>;
96            nvmem-cell-names = "big_scale_calib", "small_scale_calib";
97        };
98    };
99
100  - |
101    #include <dt-bindings/interrupt-controller/irq.h>
102    pmic {
103        #address-cells = <1>;
104        #size-cells = <0>;
105        adc@504 {
106            compatible = "sprd,ump9620-adc";
107            reg = <0x504>;
108            interrupt-parent = <&ump9620_pmic>;
109            interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
110            #io-channel-cells = <1>;
111            hwlocks = <&hwlock 4>;
112            nvmem-cells = <&adc_bcal1>, <&adc_bcal2>,
113                          <&adc_scal1>, <&adc_scal2>,
114                          <&vbat_det_cal1>, <&vbat_det_cal2>;
115            nvmem-cell-names = "big_scale_calib1", "big_scale_calib2",
116                               "small_scale_calib1", "small_scale_calib2",
117                               "vbat_det_cal1", "vbat_det_cal2";
118        };
119    };
120...
121