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Message-ID: <20241025115624.21835-2-antoniu.miclaus@analog.com>
Date: Fri, 25 Oct 2024 14:56:10 +0300
From: Antoniu Miclaus <antoniu.miclaus@...log.com>
To: Jean Delvare <jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>,
Rob
Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor
Dooley <conor+dt@...nel.org>,
Antoniu Miclaus <antoniu.miclaus@...log.com>,
<linux-hwmon@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] dt-bindings: hwmon: add ltc4296-1 support
Add devicetree bindings for the ltc4296-1 device.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>
---
.../bindings/hwmon/adi,ltc4296-1.yaml | 105 ++++++++++++++++++
1 file changed, 105 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/adi,ltc4296-1.yaml
diff --git a/Documentation/devicetree/bindings/hwmon/adi,ltc4296-1.yaml b/Documentation/devicetree/bindings/hwmon/adi,ltc4296-1.yaml
new file mode 100644
index 000000000000..be73d59a7d65
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/adi,ltc4296-1.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/adi,ltc4296-1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LTC4296-1 5-Port SPoE PSE Controller
+
+maintainers:
+ - Antoniu Miclaus <antoniu.miclaus@...log.com>
+
+description: |
+ The LTC4296-1 is an IEEE 802.3cg-compliant, five port, single-pair
+ power over Ethernet (SPoE), power sourcing equipment (PSE)
+ controller. SPoE simplifies system design and installation with
+ standardized power and Ethernet data over a single-pair cable.
+
+ Datasheet:
+ https://www.analog.com/en/products/ltc4296-1.html
+
+$ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ const: adi,ltc4296-1
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ vin-supply: true
+
+patternProperties:
+ "^channel@[0-3]$":
+ type: object
+ description:
+ Represents the current monitoring channels.
+
+ properties:
+ reg:
+ description:
+ The channel number. ltc4296-1 can monitor 5 currents.
+ items:
+ minimum: 0
+ maximum: 4
+
+ shunt-resistor-micro-ohms:
+ description:
+ The value of curent sense resistor in micro ohms.
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - vin-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hwmon@0 {
+ compatible = "adi,ltc4296-1";
+ reg = <0x0>;
+ vin-supply = <&vcc>;
+ };
+ };
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hwmon@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compatible = "adi,ltc4296-1";
+ reg = <0x0>;
+ vin-supply = <&vin>;
+
+ channel@0 {
+ reg = <0x0>;
+ shunt-resistor-micro-ohms = <100000>;
+ };
+
+ channel@1 {
+ reg = <0x1>;
+ shunt-resistor-micro-ohms = <100000>;
+ };
+ };
+ };
+...
--
2.46.2
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