Messages in this thread | | | From | Gregory Fong <> | Date | Wed, 17 Dec 2014 15:25:09 -0800 | Subject | Re: [PATCH] ARM: brcmstb: update CPU power management sequence |
| |
On Tue, Dec 16, 2014 at 7:13 PM, Brian Norris <computersforpeace@gmail.com> wrote: > The automatic CPU power state machine for B15 CPUs does not work > reliably as-is. This patch implements a manual sequence in software to > replace it. > > This was tested successfully with over 10,000 hotplug cycles of > something like this: > > echo 0 > /sys/devices/system/cpu/cpu1/online > echo 1 > /sys/devices/system/cpu/cpu1/online > > whereas the existing sequence often locks up after a few hundred cycles. > > Fixes: 62639c2f5332 ("ARM: brcmstb: reintroduce SMP support") > Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
| |