| Message ID | 20231107105025.1480561-2-billy_tsai@aspeedtech.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Support pwm/tach driver for aspeed ast26xx | expand |
On Tue, Nov 07, 2023 at 06:50:23PM +0800, Billy Tsai wrote: > From: Naresh Solanki <naresh.solanki@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 > $ref: fan-common.yaml# > unevaluatedProperties: false > > Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com> > Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> > --- > .../devicetree/bindings/hwmon/fan-common.yaml | 78 +++++++++++++++++++ > 1 file changed, 78 insertions(+) > create mode 100644 Documentation/devicetree/bindings/hwmon/fan-common.yaml Looking pretty good to me. It's disappointing that no one else interested in upstreaming their fan controller can be bothered to comment. > > diff --git a/Documentation/devicetree/bindings/hwmon/fan-common.yaml b/Documentation/devicetree/bindings/hwmon/fan-common.yaml > new file mode 100644 > index 000000000000..be4ce3bd7f22 > --- /dev/null > +++ b/Documentation/devicetree/bindings/hwmon/fan-common.yaml > @@ -0,0 +1,78 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$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@9elements.com> > + - Billy Tsai <billy_tsai@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/string You need to define the possible values. I assume it's: enum: - dc - pwm - anything else??? With that, Reviewed-by: Rob Herring <robh@kernel.org>
On 11/8/23 10:16, Rob Herring wrote: > On Tue, Nov 07, 2023 at 06:50:23PM +0800, Billy Tsai wrote: >> From: Naresh Solanki <naresh.solanki@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 >> $ref: fan-common.yaml# >> unevaluatedProperties: false >> >> Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com> >> Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> >> --- >> .../devicetree/bindings/hwmon/fan-common.yaml | 78 +++++++++++++++++++ >> 1 file changed, 78 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/hwmon/fan-common.yaml > > Looking pretty good to me. It's disappointing that no one else > interested in upstreaming their fan controller can be bothered to > comment. > FWIW, I declined to comment since it basically looks ok to me and because at this point I'd rather have something (whatever it is) instead of nothing. >> >> diff --git a/Documentation/devicetree/bindings/hwmon/fan-common.yaml b/Documentation/devicetree/bindings/hwmon/fan-common.yaml >> new file mode 100644 >> index 000000000000..be4ce3bd7f22 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/hwmon/fan-common.yaml >> @@ -0,0 +1,78 @@ >> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause >> +%YAML 1.2 >> +--- >> +$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@9elements.com> >> + - Billy Tsai <billy_tsai@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) >> + $ref: /schemas/types.yaml#/definitions/string > > You need to define the possible values. I assume it's: > > enum: > - dc > - pwm > - anything else??? > I am not aware of any other possible method. dc and pwm is all I have ever seen. Guenter > With that, > > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/hwmon/fan-common.yaml b/Documentation/devicetree/bindings/hwmon/fan-common.yaml new file mode 100644 index 000000000000..be4ce3bd7f22 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/fan-common.yaml @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$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@9elements.com> + - Billy Tsai <billy_tsai@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/string + + pwms: + description: + PWM provider. + maxItems: 1 + + "#cooling-cells": + const: 2 + + cooling-levels: + description: + 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 + +...