On Wed, 06 Nov 2024 03:14:36 +0100, Marek Vasut wrote:
> Delta AFC0612DB-F00 fan has to be set to at least 30% PWM duty cycle
> to spin up from a stopped state, and can be afterward throttled down to
> lower PWM duty cycle. Introduce support for operating such fans which
> need to start at higher PWM duty cycle first and can slow down next.
>
> Document two new DT properties, "fan-stop-to-start-percent" and
> "fan-stop-to-start-usec". The former describes the minimum percent
> of fan RPM at which it will surely spin up from stopped state. This
> value can be found in the fan datasheet and can be converted to PWM
> duty cycle easily. The "fan-stop-to-start-usec" describes the minimum
> time in microseconds for which the fan has to be set to stopped state
> start RPM for the fan to surely spin up.
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> ---
> Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
> Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
> Cc: Jean Delvare <jdelvare@xxxxxxxx>
> Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
> Cc: Rob Herring <robh@xxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: linux-hwmon@xxxxxxxxxxxxxxx
> ---
> V2: - Rename fan-dead-stop-start-percent to fan-stop-to-start-percent
> - Rename fan-dead-stop-start-usec to fan-stop-to-start-us
> ---
> Documentation/devicetree/bindings/hwmon/pwm-fan.yaml | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
My bot found errors running 'make dt_binding_check' on your patch:
yamllint warnings/errors:
dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/hwmon/pwm-fan.yaml: properties:fan-stop-to-start-us: '$ref' should not be valid under {'const': '$ref'}
hint: Standard unit suffix properties don't need a type $ref
from schema $id: http://devicetree.org/meta-schemas/core.yaml#
doc reference errors (make refcheckdocs):
See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20241106021559.175105-1-marex@xxxxxxx
The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.
If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:
pip3 install dtschema --upgrade
Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
