From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Thu, 13 Aug 2015 16:54:47 +0200 Subject: [PATCH v3] ARM: tegra: cpuidle: implement cpuidle_state.enter_freeze() In-Reply-To: <1432046953-12945-1-git-send-email-tomeu.vizoso@collabora.com> References: <1432046953-12945-1-git-send-email-tomeu.vizoso@collabora.com> Message-ID: <20150813145446.GD26559@ulmo> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, May 19, 2015 at 04:49:12PM +0200, Tomeu Vizoso wrote: > This callback is expected to do the same as enter() but it has to > guarantee that interrupts aren't enabled at any point in its execution, > as the tick is frozen. > > It will be called when the system goes to suspend-to-idle and will > reduce power usage because CPUs won't be awaken for unnecessary IRQs. > > By setting the CPUIDLE_FLAG_TIMER_STOP flag, we can reuse the same code > for both the enter() and enter_freeze() callbacks. > > Signed-off-by: Tomeu Vizoso > Cc: Rafael J. Wysocki > > --- > > v3: * Set CPUIDLE_FLAG_TIMER_STOP to simplify things as suggested by > Lorenzo Pieralisi > v2: * Disable FIQs also when suspending-to-idle > --- > arch/arm/mach-tegra/cpuidle-tegra114.c | 13 +++++++++---- > 1 file changed, 9 insertions(+), 4 deletions(-) Applied, thanks. Thierry -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: not available URL: