On Mon, May 24, 2021 at 11:23 AM Sander Vanheule <sander@xxxxxxxxxxxxx> wrote: > On Mon, 2021-05-24 at 11:02 +0300, Andy Shevchenko wrote: > > On Mon, May 24, 2021 at 1:34 AM Sander Vanheule <sander@xxxxxxxxxxxxx> wrote: ... > > > + usleep_range(1000, 10000); > > > > It's strange to see this big range of minimum and maximum sleep. > > Usually the ratio should not be bigger than ~3-4 between the values. > > I could also change this from a usleep to a polling loop that checks (with a > loop limit) if the reset bit has self-cleared already. > > The datasheet that I have doesn't mention how fast it should self-clear. So I > checked, and it appears to be done after one loop iteration already. So, > certainly faster than the current usleep. > > Would a polling loop (with maybe like max. 10 iterations) be a good alternative > for you? I guess it's the right way to go. Just check the iopoll.h for helpers. Also regmap has regmap_read_poll_timeout(). -- With Best Regards, Andy Shevchenko
