| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/hwmon/fan-common.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Common Fan Properties |
| 8 | |
| 9 | maintainers: |
| 10 | - Naresh Solanki <naresh.solanki@9elements.com> |
| 11 | - Billy Tsai <billy_tsai@aspeedtech.com> |
| 12 | |
| 13 | properties: |
| 14 | max-rpm: |
| 15 | description: |
| 16 | Max RPM supported by fan. |
| 17 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 18 | maximum: 100000 |
| 19 | |
| 20 | min-rpm: |
| 21 | description: |
| 22 | Min RPM supported by fan. |
| 23 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 24 | maximum: 1000 |
| 25 | |
| 26 | pulses-per-revolution: |
| 27 | description: |
| 28 | The number of pulse from fan sensor per revolution. |
| 29 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 30 | maximum: 4 |
| 31 | |
| 32 | tach-div: |
| 33 | description: |
| 34 | Divisor for the tach sampling clock, which determines the sensitivity of the tach pin. |
| 35 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 36 | |
| 37 | target-rpm: |
| 38 | description: |
| 39 | The default desired fan speed in RPM. |
| 40 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 41 | |
| 42 | fan-driving-mode: |
| 43 | description: |
| 44 | Select the driving mode of the fan.(DC, PWM and so on) |
| 45 | $ref: /schemas/types.yaml#/definitions/string |
| 46 | enum: [ dc, pwm ] |
| 47 | |
| 48 | pwms: |
| 49 | description: |
| 50 | PWM provider. |
| 51 | maxItems: 1 |
| 52 | |
| 53 | "#cooling-cells": |
| 54 | const: 2 |
| 55 | |
| 56 | cooling-levels: |
| 57 | description: |
| 58 | The control value which correspond to thermal cooling states. |
| 59 | $ref: /schemas/types.yaml#/definitions/uint32-array |
| 60 | |
| 61 | tach-ch: |
| 62 | description: |
| 63 | The tach channel used for the fan. |
| 64 | $ref: /schemas/types.yaml#/definitions/uint8-array |
| 65 | |
| 66 | label: |
| 67 | description: |
| 68 | Optional fan label |
| 69 | |
| 70 | fan-supply: |
| 71 | description: |
| 72 | Power supply for fan. |
| 73 | |
| 74 | reg: |
| 75 | maxItems: 1 |
| 76 | |
| 77 | additionalProperties: true |
| 78 | |
| 79 | ... |