[v2 1/3] dt-bindings: Add bindings for aspeed pwm-tach.

Billy Tsai billy_tsai at aspeedtech.com
Thu Nov 3 18:39:27 AEDT 2022

On 2022/11/3, 2:19 AM, "Rob Herring" <robh at kernel.org> wrote:

    On Tue, Nov 1, 2022 at 10:21 PM Billy Tsai <billy_tsai at aspeedtech.com> wrote:
    > That all sounds like requirements that you have which you should
    > ensure the fan binding can support.

    > I've already said to use the PWM binding in the fan binding exactly
    > for the purpose of hooking up the PWMs to other things. Whether the
    > tach controller is useful for something other than fans, I don't know.
    > Seems less likely. The max6639 also has a tach controller. So if other
    > uses are possible for you, then it could be possible for any other h/w
    > like the max6639.

The linux kernel already have the similar binding:
Therefore, I want to reuse it and the pwm-fan.c instead of creating another similar fan binding and driver.
I am referring to the following files:
It will also reuse the pwm-fan instead creating it own pwm-fan binding for their hwmon(tach).


Best Regards,
Billy Tsai

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