[help]: Confirm the delay in the reset driver

[Judehahh]

Help

Hi,

I am trying to add support for the reset controller to mainline kernel, and there are a few questions about delay that need to be confirmed:

1. After clear done bit, before set reset bit, is delay required? and how long is the delay?
2. After set reset bit, before clear reset bit, what is the minimum delay required to satisfy all reset consumers?
3. After clear reset bit/reset auto done, how long does it take for the done bit to be auto set?

[wycwyhwyq]

Please refer to this code https://github.com/ruyisdk/linux-xuantie-kernel/blob/linux-6.6.36/drivers/reset/reset-k230.c

[Judehahh]

@wycwyhwyq

Please refer to this code https://github.com/ruyisdk/linux-xuantie-kernel/blob/linux-6.6.36/drivers/reset/reset-k230.c

Thanks. This code uses udelay(10) when doing the reset operation. So that means it is certain that 10us is enough for all reset consumers to complete the reset operation?