[PATCH v9 1/3] dt-bindings: hwmon: fan: Add fan binding to schema
Rob Herring
robh at kernel.org
Tue Oct 3 02:23:43 AEDT 2023
On Mon, Sep 18, 2023 at 02:41:09PM +0800, Billy Tsai wrote:
> From: Naresh Solanki <naresh.solanki at 9elements.com>
>
> Add common fan properties bindings to a schema.
>
> Bindings for fan controllers can reference the common schema for the
> fan
>
> child nodes:
>
> patternProperties:
> "^fan@[0-2]":
> type: object
> $ref: fan-common.yaml#
> unevaluatedProperties: false
>
> Signed-off-by: Naresh Solanki <naresh.solanki at 9elements.com>
> Signed-off-by: Billy Tsai <billy_tsai at aspeedtech.com>
> ---
> .../devicetree/bindings/hwmon/fan-common.yaml | 78 +++++++++++++++++++
> 1 file changed, 78 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/hwmon/fan-common.yaml
>
> diff --git a/Documentation/devicetree/bindings/hwmon/fan-common.yaml b/Documentation/devicetree/bindings/hwmon/fan-common.yaml
> new file mode 100644
> index 000000000000..2bd2f57fc9d9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/fan-common.yaml
> @@ -0,0 +1,78 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/fan-common.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Common Fan Properties
> +
> +maintainers:
> + - Naresh Solanki <naresh.solanki at 9elements.com>
> + - Billy Tsai <billy_tsai at aspeedtech.com>
> +
> +properties:
> + max-rpm:
> + description:
> + Max RPM supported by fan.
> + $ref: /schemas/types.yaml#/definitions/uint32
> + maximum: 100000
> +
> + min-rpm:
> + description:
> + Min RPM supported by fan.
> + $ref: /schemas/types.yaml#/definitions/uint32
> + maximum: 1000
> +
> + pulses-per-revolution:
> + description:
> + The number of pulse from fan sensor per revolution.
> + $ref: /schemas/types.yaml#/definitions/uint32
> + maximum: 4
> +
> + tach-div:
> + description:
> + Divisor for the tach sampling clock, which determines the sensitivity of the tach pin.
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> + target-rpm:
> + description:
> + The default desired fan speed in RPM.
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> + fan-driving-mode:
> + description:
> + Select the driving mode of the fan.(DC, PWM and so on)
> + $ref: /schemas/types.yaml#/definitions/uint32
What value corresponds to what mode? I'd do strings instead. 'dc',
'pwm', etc.
> +
> + pwms:
> + description:
> + PWM provider.
> + maxItems: 1
> +
> + "#cooling-cells":
> + const: 2
> +
> + cooling-levels:
> + description: |
Don't need '|'
> + The control value which correspond to thermal cooling states.
> + $ref: /schemas/types.yaml#/definitions/uint32-array
> +
> + tach-ch:
> + description:
> + The tach channel used for the fan.
> + $ref: /schemas/types.yaml#/definitions/uint8-array
> +
> + label:
> + description:
> + Optional fan label
> +
> + fan-supply:
> + description:
> + Power supply for fan.
> +
> + reg:
> + maxItems: 1
> +
> +additionalProperties: true
> +
> +...
> --
> 2.25.1
>
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