From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter De Schrijver Subject: Re: [PATCH V3 1/5] ARM: tegra: add pending SGI checking API Date: Thu, 20 Dec 2012 13:14:09 +0200 Message-ID: <20121220111409.GH19258@tbergstrom-lnx.Nvidia.com> References: <1355797861-12759-1-git-send-email-josephl@nvidia.com> <1355797861-12759-2-git-send-email-josephl@nvidia.com> <20121218101548.GO19258@tbergstrom-lnx.Nvidia.com> <50D2BB51.9000109@ti.com> <20121220093412.GE19258@tbergstrom-lnx.Nvidia.com> <50D2DF45.1000305@ti.com> <20121220095951.GG19258@tbergstrom-lnx.Nvidia.com> <50D2E76C.7050309@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Return-path: Content-Disposition: inline In-Reply-To: <50D2E76C.7050309-l0cyMroinI0@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Santosh Shilimkar Cc: Colin Cross , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Stephen Warren , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" , Joseph Lo List-Id: linux-tegra@vger.kernel.org > > > > So why does OMAP4 have working coupled idle without the SGI check then? > > > Because whenever the OMAP4 CPUs enter into any power states apart from > ON, clock-domain force wakeup method us being used to wakeup > secondary CPUs. And secondly CPU RET is not supported on purpose because > of some known IP block issues. > Aha. That explains indeed why you don't need the check. Cheers, Peter. From mboxrd@z Thu Jan 1 00:00:00 1970 From: pdeschrijver@nvidia.com (Peter De Schrijver) Date: Thu, 20 Dec 2012 13:14:09 +0200 Subject: [PATCH V3 1/5] ARM: tegra: add pending SGI checking API In-Reply-To: <50D2E76C.7050309@ti.com> References: <1355797861-12759-1-git-send-email-josephl@nvidia.com> <1355797861-12759-2-git-send-email-josephl@nvidia.com> <20121218101548.GO19258@tbergstrom-lnx.Nvidia.com> <50D2BB51.9000109@ti.com> <20121220093412.GE19258@tbergstrom-lnx.Nvidia.com> <50D2DF45.1000305@ti.com> <20121220095951.GG19258@tbergstrom-lnx.Nvidia.com> <50D2E76C.7050309@ti.com> Message-ID: <20121220111409.GH19258@tbergstrom-lnx.Nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org > > > > So why does OMAP4 have working coupled idle without the SGI check then? > > > Because whenever the OMAP4 CPUs enter into any power states apart from > ON, clock-domain force wakeup method us being used to wakeup > secondary CPUs. And secondly CPU RET is not supported on purpose because > of some known IP block issues. > Aha. That explains indeed why you don't need the check. Cheers, Peter.