Rob Clark <robdclark@xxxxxxxxx> writes: > From: Rob Clark <robdclark@xxxxxxxxxxxx> > > The goal here is to support inheriting a display setup by bootloader, > although there may also be some non-display related use-cases. > > Rough idea is to add a flag for clks and power domains that might > already be enabled when kernel starts, and which should not be > disabled at late_initcall if the kernel thinks they are "unused". > > If bootloader is enabling display, and kernel is using efifb before > real display driver is loaded (potentially from kernel module after > userspace starts, in a typical distro kernel), we don't want to kill > the clocks and power domains that are used by the display before > userspace starts. > > Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx> Raspberry Pi is carrying downstream hacks to do similar stuff, and it would be great to see CCF finally support this.
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