[v6 2/4] dt-bindings: hwmon: Add ASPEED TACH Control documentation
Guenter Roeck
linux at roeck-us.net
Wed Jun 7 21:58:27 PDT 2023
On 6/7/23 19:18, Billy Tsai wrote:
> Document the compatible for aspeed,ast2600-tach device.
>
> Signed-off-by: Billy Tsai <billy_tsai at aspeedtech.com>
> ---
> .../bindings/hwmon/aspeed,ast2600-tach.yaml | 32 +++++++++++++++++++
> 1 file changed, 32 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml
>
> diff --git a/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml b/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml
> new file mode 100644
> index 000000000000..627aa00f2e92
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml
> @@ -0,0 +1,32 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2021 Aspeed, Inc.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/aspeed,ast2600-tach.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Aspeed Ast2600 Tach controller
> +
> +maintainers:
> + - Billy Tsai <billy_tsai at aspeedtech.com>
> +
> +description: |
> + The Aspeed Tach controller can support upto 1 fan input.
> +
The code says:
In Aspeed AST2600 SoC features 16 TACH controllers, with each
controller capable of supporting up to 1 input.
which is a bit different. I guess there are no examples anymore,
but I'd really like to see how this looks like in the devicetree file,
and how the driver is supposed to distinguish/select the 16 inputs.
> +properties:
> + compatible:
> + enum:
> + - aspeed,ast2600-tach
> +
> + clocks:
> + maxItems: 1
> +
> + resets:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - clocks
> + - resets
> +
> +additionalProperties: false
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