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