On 28/10/2024 15:57, Akinobu Mita wrote: >>>> >>>> You described the desired Linux feature or behavior, not the actual >>>> hardware. The bindings are about the latter, so instead you need to >>>> rephrase the property and its description to match actual hardware >>>> capabilities/features/configuration etc. >>> >>> Is this description okay? >>> (Reused the description of retain-state-shutdown in leds-gpio.yaml) >>> >>> description: >>> Retain the state of the PWM on shutdown. Useful in BMC systems, for >>> example, when the BMC is rebooted while the host remains up, the fan >>> will not stop. >> >> Nothing improved in the property. You still say what the system should >> do. This is user-space choice, not DT. > > It seems better to implement it as a device attribute. I don't know about that. To repeat: if you say what system is supposed to be doing, it is a policy. Describe the hardware and its configuration and maybe this would be suitable for DT. Best regards, Krzysztof