0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/hwmon/adi,adm1177.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
0008
0009 maintainers:
0010 - Michael Hennerich <michael.hennerich@analog.com>
0011
0012 description: |
0013 Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
0014 https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf
0015
0016 properties:
0017 compatible:
0018 enum:
0019 - adi,adm1177
0020
0021 reg:
0022 maxItems: 1
0023
0024 avcc-supply:
0025 description:
0026 Phandle to the Avcc power supply
0027
0028 shunt-resistor-micro-ohms:
0029 description:
0030 The value of curent sense resistor in microohms. If not provided,
0031 the current reading and overcurrent alert is disabled.
0032
0033 adi,shutdown-threshold-microamp:
0034 description:
0035 Specifies the current level at which an over current alert occurs.
0036 If not provided, the overcurrent alert is configured to max ADC range
0037 based on shunt-resistor-micro-ohms.
0038
0039 adi,vrange-high-enable:
0040 description:
0041 Specifies which internal voltage divider to be used. A 1 selects
0042 a 7:2 voltage divider while a 0 selects a 14:1 voltage divider.
0043 type: boolean
0044
0045 required:
0046 - compatible
0047 - reg
0048
0049 additionalProperties: false
0050
0051 examples:
0052 - |
0053 #include <dt-bindings/gpio/gpio.h>
0054 #include <dt-bindings/interrupt-controller/irq.h>
0055 i2c0 {
0056 #address-cells = <1>;
0057 #size-cells = <0>;
0058
0059 pwmon@5a {
0060 compatible = "adi,adm1177";
0061 reg = <0x5a>;
0062 shunt-resistor-micro-ohms = <50000>; /* 50 mOhm */
0063 adi,shutdown-threshold-microamp = <1059000>; /* 1.059 A */
0064 adi,vrange-high-enable;
0065 };
0066 };
0067 ...
