.../bindings/hwmon/maxim,max31790.yaml | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
Add device tree bindings and an example for max31790 device.
Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
Changes in v2:
- Update filename of the maxim,max31790.yaml [Krzysztof]
- Add the common fan schema to $ref [Krzysztof]
- Update the node name to "fan-controller" in maxim,max31790.yaml [Krzysztof]
- Drop "driver" in commit title [Krzysztof]
Changes in v3:
- Drop redundant "bindings" in commit title [Krzysztof]
- Add the clocks and resets property in example [Krzysztof]
- Add child node refer to fan-common.yaml [Krzysztof, Conor]
Changes in v4:
- Add Chanh Nguyen to maintainers list [Chanh]
- Drop incomplete example [Krzysztof, Conor]
- Drop the cover letter because only a patch existed [Chanh]
---
.../bindings/hwmon/maxim,max31790.yaml | 70 +++++++++++++++++++
1 file changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
diff --git a/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml b/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
new file mode 100644
index 000000000000..b1ff496f87f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/maxim,max31790.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: The Maxim MAX31790 Fan Controller
+
+maintainers:
+ - Guenter Roeck <linux@roeck-us.net>
+ - Chanh Nguyen <chanh@os.amperecomputing.com>
+
+description: >
+ The MAX31790 controls the speeds of up to six fans using six
+ independent PWM outputs. The desired fan speeds (or PWM duty cycles)
+ are written through the I2C interface.
+
+ Datasheets:
+ https://datasheets.maximintegrated.com/en/ds/MAX31790.pdf
+
+properties:
+ compatible:
+ const: maxim,max31790
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ "#pwm-cells":
+ const: 1
+
+patternProperties:
+ "^fan-[0-9]+$":
+ $ref: fan-common.yaml#
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pwm_provider: fan-controller@20 {
+ compatible = "maxim,max31790";
+ reg = <0x20>;
+ clocks = <&sys_clk>;
+ resets = <&reset 0>;
+ #pwm-cells = <1>;
+
+ fan-0 {
+ pwms = <&pwm_provider 1>;
+ };
+
+ fan-1 {
+ pwms = <&pwm_provider 2>;
+ };
+ };
+ };
+
--
2.43.0
On Thu, Aug 22, 2024 at 08:48:08AM +0000, Chanh Nguyen wrote: > Add device tree bindings and an example for max31790 device. > > Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com> > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Applied. Thanks, Guenter
Hi all,
I only linked to patch v3:
https://lore.kernel.org/lkml/20240813084152.25002-1-chanh@os.amperecomputing.com/T/#mce666b8184682e4d463d418a294d95512d95c07a
Thanks,
Chanh
On 22/08/2024 15:48, Chanh Nguyen wrote:
> Add device tree bindings and an example for max31790 device.
>
> Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
> Changes in v2:
> - Update filename of the maxim,max31790.yaml [Krzysztof]
> - Add the common fan schema to $ref [Krzysztof]
> - Update the node name to "fan-controller" in maxim,max31790.yaml [Krzysztof]
> - Drop "driver" in commit title [Krzysztof]
> Changes in v3:
> - Drop redundant "bindings" in commit title [Krzysztof]
> - Add the clocks and resets property in example [Krzysztof]
> - Add child node refer to fan-common.yaml [Krzysztof, Conor]
> Changes in v4:
> - Add Chanh Nguyen to maintainers list [Chanh]
> - Drop incomplete example [Krzysztof, Conor]
> - Drop the cover letter because only a patch existed [Chanh]
> ---
> .../bindings/hwmon/maxim,max31790.yaml | 70 +++++++++++++++++++
> 1 file changed, 70 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
>
> diff --git a/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml b/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
> new file mode 100644
> index 000000000000..b1ff496f87f9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/maxim,max31790.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: The Maxim MAX31790 Fan Controller
> +
> +maintainers:
> + - Guenter Roeck <linux@roeck-us.net>
> + - Chanh Nguyen <chanh@os.amperecomputing.com>
> +
> +description: >
> + The MAX31790 controls the speeds of up to six fans using six
> + independent PWM outputs. The desired fan speeds (or PWM duty cycles)
> + are written through the I2C interface.
> +
> + Datasheets:
> + https://datasheets.maximintegrated.com/en/ds/MAX31790.pdf
> +
> +properties:
> + compatible:
> + const: maxim,max31790
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + resets:
> + maxItems: 1
> +
> + "#pwm-cells":
> + const: 1
> +
> +patternProperties:
> + "^fan-[0-9]+$":
> + $ref: fan-common.yaml#
> + unevaluatedProperties: false
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pwm_provider: fan-controller@20 {
> + compatible = "maxim,max31790";
> + reg = <0x20>;
> + clocks = <&sys_clk>;
> + resets = <&reset 0>;
> + #pwm-cells = <1>;
> +
> + fan-0 {
> + pwms = <&pwm_provider 1>;
> + };
> +
> + fan-1 {
> + pwms = <&pwm_provider 2>;
> + };
> + };
> + };
> +
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