Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
70 lines
1.7 KiB
YAML
70 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/hwmon/maxim,max6650.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Maxim MAX6650 and MAX6651 I2C Fan Controllers
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maintainers:
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- Javier Carrasco <javier.carrasco.cruz@gmail.com>
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description: |
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The MAX6650 and MAX6651 regulate and monitor the speed
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of 5VDC/12VDC burshless fans with built-in tachometers.
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Datasheets:
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https://datasheets.maximintegrated.com/en/ds/MAX6650-MAX6651.pdf
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properties:
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compatible:
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enum:
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- maxim,max6650
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- maxim,max6651
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reg:
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maxItems: 1
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maxim,fan-microvolt:
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description:
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The supply voltage of the fan, either 5000000 uV or
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12000000 uV.
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enum: [5000000, 12000000]
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maxim,fan-prescale:
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description:
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Pre-scaling value, as per datasheet. Lower values
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allow more fine-grained control of slower fans.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [1, 2, 4, 8, 16]
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maxim,fan-target-rpm:
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description:
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Initial requested fan rotation speed. If specified, the
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driver selects closed-loop mode and the requested speed.
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This ensures the fan is already running before userspace
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takes over.
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$ref: /schemas/types.yaml#/definitions/uint32
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maximum: 30000
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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fan-controller@1b {
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compatible = "maxim,max6650";
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reg = <0x1b>;
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maxim,fan-microvolt = <12000000>;
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maxim,fan-prescale = <4>;
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maxim,fan-target-rpm = <1200>;
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};
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};
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