dt-bindings: hwmon: Add TMP401, TMP411 and TMP43x

Document the TMP401, TMP411 and TMP43x device devicetree bindings

Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Camel Guo <camel.guo@axis.com>
Link: https://lore.kernel.org/r/20220414075824.2634839-2-camel.guo@axis.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml b/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
new file mode 100644 (file)
index 0000000..fe0ac08
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/ti,tmp401.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TMP401, TPM411 and TMP43x temperature sensor
+
+maintainers:
+  - Guenter Roeck <linux@roeck-us.net>
+
+description: |
+  ±1°C Remote and Local temperature sensor
+
+  Datasheets:
+  https://www.ti.com/lit/ds/symlink/tmp401.pdf
+  https://www.ti.com/lit/ds/symlink/tmp411.pdf
+  https://www.ti.com/lit/ds/symlink/tmp431.pdf
+  https://www.ti.com/lit/ds/symlink/tmp435.pdf
+
+properties:
+  compatible:
+    enum:
+      - ti,tmp401
+      - ti,tmp411
+      - ti,tmp431
+      - ti,tmp432
+      - ti,tmp435
+
+  reg:
+    maxItems: 1
+
+  ti,extended-range-enable:
+    description:
+      When set, this sensor measures over extended temperature range.
+    type: boolean
+
+  ti,n-factor:
+    description:
+      value to be used for converting remote channel measurements to
+      temperature.
+    $ref: /schemas/types.yaml#/definitions/int32
+    items:
+      minimum: -128
+      maximum: 127
+
+  ti,beta-compensation:
+    description:
+      value to select beta correction range.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 15
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - ti,tmp401
+    then:
+      properties:
+        ti,n-factor: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - ti,tmp401
+              - ti,tmp411
+    then:
+      properties:
+        ti,beta-compensation: false
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      sensor@4c {
+        compatible = "ti,tmp401";
+        reg = <0x4c>;
+      };
+    };
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      sensor@4c {
+        compatible = "ti,tmp431";
+        reg = <0x4c>;
+        ti,extended-range-enable;
+        ti,n-factor = <0x3b>;
+        ti,beta-compensation = <0x7>;
+      };
+    };

diff --git a/MAINTAINERS b/MAINTAINERS
index d6d879c..6d2c2db 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19852,6 +19852,7 @@ TMP401 HARDWARE MONITOR DRIVER
 M:     Guenter Roeck <linux@roeck-us.net>
 L:     linux-hwmon@vger.kernel.org
 S:     Maintained
+F:     Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
 F:     Documentation/hwmon/tmp401.rst
 F:     drivers/hwmon/tmp401.c