Hi Tony, On Thu, Oct 7, 2021 at 7:24 PM Tony Lindgren <tony@xxxxxxxxxxx> wrote: > * Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> [211007 13:27]: > > On Thu, Oct 7, 2021 at 2:49 PM Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > > Even without clocks and power domains configured, simple-pm-bus is still > > > different from simple-bus as simple-pm-bus enables runtime PM for the bus > > > driver. > > > > Which you need to have working Runtime PM for child devices, right? ;-) > > Right. And based on what I remember we simply cannot do pm_runtime_enable() > for simple-bus without breaking tons of devices. Why not? Do you have an example of what would break? The only reason I created simple-pm-bus was because the DT people objected to adding PM to simple-bus, as they considered it wrong conceptually. AFAIK this wouldn't have caused any actual breakage. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds