[PATCH 2/2] dt-bindings: iio: temperature: add MLX90635 device bindings

From: Crt Mori
Date: Wed Nov 22 2023 - 05:30:05 EST


Add device tree bindings for MLX90635 Infra Red contactless temperature
sensor.

Signed-off-by: Crt Mori <cmo@xxxxxxxxxxx>
---
.../iio/temperature/melexis,mlx90635.yaml | 60 +++++++++++++++++++
1 file changed, 60 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/temperature/melexis,mlx90635.yaml

diff --git a/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90635.yaml b/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90635.yaml
new file mode 100644
index 000000000000..96463121a806
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90635.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/temperature/melexis,mlx90635.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Melexis MLX90635 contactless Infra Red temperature sensor
+
+maintainers:
+ - Crt Mori <cmo@xxxxxxxxxxx>
+
+description: |
+ https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90635
+
+ There are various applications for the Infra Red contactless temperature
+ sensor and MLX90635 is most suitable for consumer applications where
+ measured object temperature is in range between -20 to 100 degrees
+ Celsius with relative error of measurement 2 degree Celsius in
+ object temperature range for industrial applications, while just 0.2
+ degree Celsius for human body measurement applications. Since it can
+ operate and measure ambient temperature in range of -20 to 85 degrees
+ Celsius it is suitable also for outdoor use.
+
+ Be aware that electronics surrounding the sensor can increase ambient
+ temperature. MLX90635 can be calibrated to reduce the housing effect via
+ already existing EEPROM parameters.
+
+ Since measured object emissivity effects Infra Red energy emitted,
+ emissivity should be set before requesting the object temperature.
+
+properties:
+ compatible:
+ const: melexis,mlx90635
+
+ reg:
+ maxItems: 1
+ description: Default is 0x3a, but can be reprogrammed.
+
+ vdd-supply:
+ description: provide VDD power to the sensor (check datasheet for voltage).
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ temp-sensor@3a {
+ compatible = "melexis,mlx90635";
+ reg = <0x3a>;
+ vdd-supply = <&ldo4_reg>;
+ };
+ };
+...
--
2.40.1