From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Sun, 10 Jul 2011 15:19:35 +0100 Subject: [PATCHv2 0/3] clocksource: add db8500 PRCMU timer In-Reply-To: <20110602094622.GS3660@n2100.arm.linux.org.uk> References: <1307007271-1004-1-git-send-email-mattias.wallin@stericsson.com> <20110602094622.GS3660@n2100.arm.linux.org.uk> Message-ID: <20110710141935.GA21414@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Jun 02, 2011 at 10:46:22AM +0100, Russell King - ARM Linux wrote: > On Thu, Jun 02, 2011 at 11:34:31AM +0200, Mattias Wallin wrote: > > The Multi Timer Unit (MTU) is currently used as clocksource and sched_clk > > for the u8500 machine. The MTU block loose power during cpuidle sleep states > > so an alternate clocksource is needed and these patches adds the db8500 PRCMU > > timer. > > Why don't we just find a way of fixing sched_clock so that the value > doesn't reset over a suspend/resume cycle? IOW, lets fix the problem > for _everyone_ rather than only fixing it for one platform at a time. > > Could you try this patch to check whether sched_clock() behaves better > across a suspend/resume cycle please? So do I merge this patch?