Document the compatible for aspeed,ast2600-pwm-tach device, which can support upto 16 PWM outputs and 16 fan tach input. Signed-off-by: Billy Tsai <billy_tsai@xxxxxxxxxxxxxx> --- .../bindings/hwmon/aspeed,g6-pwm-tach.yaml | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml diff --git a/Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml b/Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml new file mode 100644 index 000000000000..1666304d0b0f --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2021 Aspeed, Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/aspeed,g6-pwm-tach.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ASPEED G6 PWM and Fan Tach controller device driver + +maintainers: + - Billy Tsai <billy_tsai@xxxxxxxxxxxxxx> + +description: | + The ASPEED PWM controller can support upto 16 PWM outputs. + The ASPEED Fan Tacho controller can support upto 16 fan tach input. + +properties: + compatible: + enum: + - aspeed,ast2600-pwm-tach + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + "#pwm-cells": + const: 3 + + aspeed,fan-tach-ch: + description: Specify the Fan tach input channels. + $ref: "/schemas/types.yaml#/definitions/uint8-array" + +required: + - reg + - clocks + - resets + - "#pwm-cells" + - compatible + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/aspeed-clock.h> + pwm_tach: pwm-tach-controller@1e610000 { + compatible = "aspeed,ast2600-pwm-tach"; + reg = <0x1e610000 0x100>; + clocks = <&syscon ASPEED_CLK_AHB>; + resets = <&syscon ASPEED_RESET_PWM>; + #pwm-cells = <3>; + aspeed,fan-tach-ch = /bits/ 8 <0x00 0x02 0x4>; + }; -- 2.25.1
