1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/qcom,spmi-iadc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm's SPMI PMIC current ADC
8
9 maintainers:
10 - Jonathan Cameron <jic23@kernel.org>
11
12 description: |
13 QPNP PMIC current ADC (IADC) provides interface to clients to read current.
14 A 16 bit ADC is used for current measurements. IADC can measure the current
15 through an external resistor (channel 1) or internal (built-in) resistor
16 (channel 0). When using an external resistor it is to be described by
17 qcom,external-resistor-micro-ohms property.
18
19 properties:
20 compatible:
21 items:
22 - enum:
23 - qcom,pm8226-iadc
24 - qcom,pm8941-iadc
25 - const: qcom,spmi-iadc
26
27 reg:
28 description: IADC base address in the SPMI PMIC register map
29 maxItems: 1
30
31 qcom,external-resistor-micro-ohms:
32 description:
33 Sensor resistor value. If not defined value of 10000 micro Ohms
34 will be used.
35
36 interrupts:
37 maxItems: 1
38 description:
39 End of conversion interrupt.
40
41 "#io-channel-cells":
42 const: 1
43
44 required:
45 - compatible
46 - reg
47
48 additionalProperties: false
49
50 examples:
51 - |
52 #include <dt-bindings/interrupt-controller/irq.h>
53
54 pmic {
55 #address-cells = <1>;
56 #size-cells = <0>;
57
58 adc@3600 {
59 compatible = "qcom,pm8941-iadc", "qcom,spmi-iadc";
60 reg = <0x3600>;
61 interrupts = <0x0 0x36 0x0 IRQ_TYPE_EDGE_RISING>;
62 qcom,external-resistor-micro-ohms = <10000>;
63 #io-channel-cells = <1>;
64 };
65 };
66 ...
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