tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: iio: adc: adding support for PAC193X
This is the device tree schema for iio driver for
Microchip PAC193X series of Power Monitors with Accumulator.
Signed-off-by: Marius Cristea <marius.cristea@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240222164206.65700-2-marius.cristea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Marius Cristea
and committed by
Jonathan Cameron
a8ce0b4e
5cad30ab
+120
+120
Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
+120
Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
···
1
+
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2
+
%YAML 1.2
3
+
---
4
+
$id: http://devicetree.org/schemas/iio/adc/microchip,pac1934.yaml#
5
+
$schema: http://devicetree.org/meta-schemas/core.yaml#
6
+
7
+
title: Microchip PAC1934 Power Monitors with Accumulator
8
+
9
+
maintainers:
10
+
- Marius Cristea <marius.cristea@microchip.com>
11
+
12
+
description: |
13
+
This device is part of the Microchip family of Power Monitors with
14
+
Accumulator.
15
+
The datasheet for PAC1931, PAC1932, PAC1933 and PAC1934 can be found here:
16
+
https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/PAC1931-Family-Data-Sheet-DS20005850E.pdf
17
+
18
+
properties:
19
+
compatible:
20
+
enum:
21
+
- microchip,pac1931
22
+
- microchip,pac1932
23
+
- microchip,pac1933
24
+
- microchip,pac1934
25
+
26
+
reg:
27
+
maxItems: 1
28
+
29
+
"#address-cells":
30
+
const: 1
31
+
32
+
"#size-cells":
33
+
const: 0
34
+
35
+
interrupts:
36
+
maxItems: 1
37
+
38
+
slow-io-gpios:
39
+
description:
40
+
A GPIO used to trigger a change is sampling rate (lowering the chip power
41
+
consumption). If configured in SLOW mode, if this pin is forced high,
42
+
sampling rate is forced to eight samples/second. When it is forced low,
43
+
the sampling rate is 1024 samples/second unless a different sample rate
44
+
has been programmed.
45
+
46
+
patternProperties:
47
+
"^channel@[1-4]+$":
48
+
type: object
49
+
$ref: adc.yaml
50
+
description:
51
+
Represents the external channels which are connected to the ADC.
52
+
53
+
properties:
54
+
reg:
55
+
items:
56
+
minimum: 1
57
+
maximum: 4
58
+
59
+
shunt-resistor-micro-ohms:
60
+
description:
61
+
Value in micro Ohms of the shunt resistor connected between
62
+
the SENSE+ and SENSE- inputs, across which the current is measured.
63
+
Value is needed to compute the scaling of the measured current.
64
+
65
+
required:
66
+
- reg
67
+
- shunt-resistor-micro-ohms
68
+
69
+
unevaluatedProperties: false
70
+
71
+
required:
72
+
- compatible
73
+
- reg
74
+
- "#address-cells"
75
+
- "#size-cells"
76
+
77
+
additionalProperties: false
78
+
79
+
examples:
80
+
- |
81
+
i2c {
82
+
#address-cells = <1>;
83
+
#size-cells = <0>;
84
+
85
+
power-monitor@10 {
86
+
compatible = "microchip,pac1934";
87
+
reg = <0x10>;
88
+
89
+
#address-cells = <1>;
90
+
#size-cells = <0>;
91
+
92
+
channel@1 {
93
+
reg = <0x1>;
94
+
shunt-resistor-micro-ohms = <24900000>;
95
+
label = "CPU";
96
+
};
97
+
98
+
channel@2 {
99
+
reg = <0x2>;
100
+
shunt-resistor-micro-ohms = <49900000>;
101
+
label = "GPU";
102
+
};
103
+
104
+
channel@3 {
105
+
reg = <0x3>;
106
+
shunt-resistor-micro-ohms = <75000000>;
107
+
label = "MEM";
108
+
bipolar;
109
+
};
110
+
111
+
channel@4 {
112
+
reg = <0x4>;
113
+
shunt-resistor-micro-ohms = <100000000>;
114
+
label = "NET";
115
+
bipolar;
116
+
};
117
+
};
118
+
};
119
+
120
+
...