radeonfb: Whack the PCI PM register until it sticks
This fixes a regression introduced when we switched to using the core pci_set_power_state(). The chip seems to need the state to be written over and over again until it sticks, so we do that. Note that the code is a bit blunt, without timeout, etc... but that's pretty much because I put back in there the code exactly as it used to be before the regression. I still add a call to pci_set_power_state() at the end so that ACPI gets called appropriately on x86. Signed-off-by:Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by:
Raymond Wooninck <tittiatcoke@gmail.com> Acked-by:
Rafael J. Wysocki <rjw@sisk.pl> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
parent
65c24491
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