From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Tue, 10 Apr 2012 09:44:13 +0100 Subject: [PATCH 1/3] ARM: OMAP2+: 32k-counter: Use hwmod lookup to check presence of 32k timer In-Reply-To: <4F83440E.70502@ti.com> References: <79CD15C6BA57404B839C016229A409A8318461E8@DBDE01.ent.ti.com> <79CD15C6BA57404B839C016229A409A83184846A@DBDE01.ent.ti.com> <20120405095221.GC25053@n2100.arm.linux.org.uk> <79CD15C6BA57404B839C016229A409A831848621@DBDE01.ent.ti.com> <87hawxkgoi.fsf@ti.com> <79CD15C6BA57404B839C016229A409A831849432@DBDE01.ent.ti.com> <20120406180452.GB15734@atomide.com> <79CD15C6BA57404B839C016229A409A83184ABEF@DBDE01.ent.ti.com> <4F83440E.70502@ti.com> Message-ID: <20120410084413.GD25053@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Apr 09, 2012 at 03:18:22PM -0500, Jon Hunter wrote: > True, but we would always want to use the 32k timer if CONFIG_PM is > specified. So what I am saying is that if a device has a 32ksync timer > and CONFIG_PM is defined, we always want to use the 32ksync timer and a > gptimer should never be used. Why? What if you want to have PM enabled, and you also want to use the kernels high resolution timers, or you want more accurate timing than the 30.5us tick interval of the 32k timer?