Message-ID: <20230512142050.12204-1-daniel.matyas@analog.com>
Date:   Fri, 12 May 2023 17:20:48 +0300
From:   Daniel Matyas <daniel.matyas@...log.com>
To:     unlisted-recipients:; (no To-header on input)
CC:     Daniel Matyas <daniel.matyas@...log.com>,
        Rob Herring <robh@...nel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        "Rob Herring" <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        <linux-hwmon@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>
Subject: [PATCH v8 1/2] dt-bindings: hwmon: add MAX31827

MAX31827 is a low-power temperature switch with I2C interface.

The device is a ±1°C accuracy from -40°C to +125°C
(12 bits) local temperature switch and sensor with I2C/SM-
Bus interface. The combination of small 6-bump wafer-lev-
el package (WLP) and high accuracy makes this temper-
ature sensor/switch ideal for a wide range of applications.

Signed-off-by: Daniel Matyas <daniel.matyas@...log.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---

v7 -> v8: Added '--base=[Linux 6.4-rc1 commmit]' when using 'git
format-patch'

 .../bindings/hwmon/adi,max31827.yaml          | 54 +++++++++++++++++++
 MAINTAINERS                                   |  7 +++
 2 files changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/adi,max31827.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/adi,max31827.yaml b/Documentation/devicetree/bindings/hwmon/adi,max31827.yaml
new file mode 100644
index 000000000000..2dc8b07b4d3b
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/adi,max31827.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/adi,max31827.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices MAX31827, MAX31828, MAX31829 Low-Power Temperature Switch
+
+maintainers:
+  - Daniel Matyas <daniel.matyas@...log.com>
+
+description: |
+  Analog Devices MAX31827, MAX31828, MAX31829 Low-Power Temperature Switch with
+  I2C Interface
+  https://www.analog.com/media/en/technical-documentation/data-sheets/MAX31827-MAX31829.pdf
+
+properties:
+  compatible:
+    oneOf:
+      - const: adi,max31827
+      - items:
+          - enum:
+              - adi,max31828
+              - adi,max31829
+          - const: adi,max31827
+
+  reg:
+    maxItems: 1
+
+  vref-supply:
+    description:
+      Must have values in the interval (1.6V; 3.6V) in order for the device to
+      function correctly.
+
+required:
+  - compatible
+  - reg
+  - vref-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        temperature-sensor@42 {
+            compatible = "adi,max31827";
+            reg = <0x42>;
+            vref-supply = <&reg_vdd>;
+        };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index e0ad886d3163..5d5359f59af5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12617,6 +12617,13 @@ F:	Documentation/userspace-api/media/drivers/max2175.rst
 F:	drivers/media/i2c/max2175*
 F:	include/uapi/linux/max2175.h
 
+MAX31827 TEMPERATURE SWITCH DRIVER
+M:	Daniel Matyas <daniel.matyas@...log.com>
+L:	linux-hwmon@...r.kernel.org
+S:	Supported
+W:	http://ez.analog.com/community/linux-device-drivers
+F:	Documentation/devicetree/bindings/hwmon/adi,max31827.yaml
+
 MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
 L:	linux-hwmon@...r.kernel.org
 S:	Orphan

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-- 
2.34.1

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