[PATCH v7 1/2] dt-bindings: hwmon: add renesas,isl28022

Yikai Tsai
2024-09-25T03:11:48Z

Add dt-bindings for Renesas ISL28022 power monitor.

Signed-off-by: Carsten Spieß <mail@carsten-spiess.de>
Signed-off-by: Yikai Tsai <yikai.tsai.wiwynn@gmail.com>
---
.../bindings/hwmon/renesas,isl28022.yaml | 64 +++++++++++++++++++
MAINTAINERS | 6 ++
2 files changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/renesas,isl28022.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/renesas,isl28022.yaml b/Documentation/devicetree/bindings/hwmon/renesas,isl28022.yaml
new file mode 100644
index 000000000000..dd82a80e4115
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/renesas,isl28022.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/renesas,isl28022.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas ISL28022 power monitor
+
+maintainers:
+ - Carsten Spieß <mail@carsten-spiess.de>
+
+description: |
+ The ISL28022 is a power monitor with I2C interface. The device monitors
+ voltage, current via shunt resistor and calculated power.
+
+ Datasheets:
+ https://www.renesas.com/us/en/www/doc/datasheet/isl28022.pdf
+
+properties:
+ compatible:
+ const: renesas,isl28022
+
+ reg:
+ maxItems: 1
+
+ shunt-resistor-micro-ohms:
+ description:
+ Shunt resistor value in micro-Ohm
+ minimum: 800
+ default: 10000
+
+ renesas,shunt-range-microvolt:
+ description:
+ Maximal shunt voltage range of +/- 40 mV, 80 mV, 160 mV or 320 mV
+ default: 320000
+ enum: [40000, 80000, 160000, 320000]
+
+ renesas,average-samples:
+ description:
+ Number of samples to be used to report voltage, current and power values.
+ default: 1
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 4, 8, 16, 32, 64, 128]
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ power-monitor@40 {
+ compatible = "renesas,isl28022";
+ reg = <0x40>;
+ shunt-resistor-micro-ohms = <8000>;
+ renesas,shunt-range-microvolt = <40000>;
+ renesas,average-samples = <128>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 7bfef98226d9..9407481c03a2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12075,6 +12075,12 @@ F: drivers/isdn/Makefile
F: drivers/isdn/hardware/
F: drivers/isdn/mISDN/

+ISL28022 HARDWARE MONITORING DRIVER
+M: Carsten Spieß <mail@carsten-spiess.de>
+L: linux-hwmon@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/hwmon/renesas,isl28022.yaml
+
ISOFS FILESYSTEM
M: Jan Kara <jack@suse.cz>
L: linux-fsdevel@vger.kernel.org
--
2.25.1