Re: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical clock

Lee Jones
2016-10-26T12:57:58Z

> > > > > If the clock is enabled when Linux boots, the Linux clock framework *needs*
> > > > > to assume the hardware may have been used in previous boot stages, and it should
> > > > > not attempt to disable the clock.
> > > >
> > > > None of the boot loaders we use do this.
> > >
> > > But the Linux kernel isn't just used by us. It is not uncommon for STB
> > > bootloaders to get information from the frontend as part of the boot process.
> >
> > Okay, this is the clincher. Since we need to support non-standard
> > bootloaders, it's difficult to guarantee that the clock will be
> > disabled at boot. For this reason, I believe that we can call this a
> > critical clock.

> That's good news as the STi maintainer already acked and applied the patch.

Matters not. That's why we have `git rebase` and `git revert`. ;)

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog