From mboxrd@z Thu Jan 1 00:00:00 1970 From: f.fainelli@gmail.com (Florian Fainelli) Date: Mon, 12 Jan 2015 15:11:52 -0800 Subject: [PATCH] ARM: brcmstb: update CPU power management sequence In-Reply-To: References: <1418786030-23455-1-git-send-email-computersforpeace@gmail.com> Message-ID: <54B454B8.4000202@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 17/12/14 15:25, Gregory Fong wrote: > On Tue, Dec 16, 2014 at 7:13 PM, Brian Norris > 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 > > Acked-by: Gregory Fong > Applied, and queued up for 3.20, thanks! -- Florian