From: Potin Lai <potin.lai.pt@gmail.com>
To: openbmc@lists.ozlabs.org, joel@jms.id.au
Cc: potin.lai@quantatw.com
Subject: [PATCH linux dev-6.6 1/2] dt-bindings: iio: Add MCP9600 thermocouple EMF converter
Date: Mon, 11 Dec 2023 11:13:18 +0800 [thread overview]
Message-ID: <20231211031319.3810692-1-potin.lai.pt@gmail.com> (raw)
From: Andrew Hepp <andrew.hepp@ahepp.dev>
Add support for the MCP9600 thermocouple electromotive force converter. The sensor has integrated cold junction compensation and a typical accuracy of 0.5 degrees Celsius. The driver supports a resolution of 0.0625 degrees Celsius.
Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP960X-Data-Sheet-20005426.pdf
Signed-off-by: Andrew Hepp <andrew.hepp@ahepp.dev>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
.../iio/temperature/microchip,mcp9600.yaml | 70 +++++++++++++++++++
1 file changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml
diff --git a/Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml b/Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml
new file mode 100644
index 0000000000000..d2cafa38a5442
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/temperature/microchip,mcp9600.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip MCP9600 thermocouple EMF converter
+
+maintainers:
+ - Andrew Hepp <andrew.hepp@ahepp.dev>
+
+description:
+ https://ww1.microchip.com/downloads/en/DeviceDoc/MCP960X-Data-Sheet-20005426.pdf
+
+properties:
+ compatible:
+ const: microchip,mcp9600
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 6
+
+ interrupt-names:
+ minItems: 1
+ maxItems: 6
+ items:
+ enum:
+ - open-circuit
+ - short-circuit
+ - alert1
+ - alert2
+ - alert3
+ - alert4
+
+ thermocouple-type:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Type of thermocouple (THERMOCOUPLE_TYPE_K if omitted).
+ Use defines in dt-bindings/iio/temperature/thermocouple.h.
+ Supported types are B, E, J, K, N, R, S, T.
+
+ vdd-supply: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/iio/temperature/thermocouple.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ temperature-sensor@60 {
+ compatible = "microchip,mcp9600";
+ reg = <0x60>;
+ interrupt-parent = <&gpio>;
+ interrupts = <25 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "open-circuit";
+ thermocouple-type = <THERMOCOUPLE_TYPE_K>;
+ vdd-supply = <&vdd>;
+ };
+ };
--
2.31.1
next reply other threads:[~2023-12-11 3:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-11 3:13 Potin Lai [this message]
2023-12-11 3:13 ` [PATCH linux dev-6.6 2/2] iio: temperature: Add MCP9600 thermocouple EMF converter Potin Lai
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