From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [PATCH] pm_ops: add irq enable/disable hooks Date: Tue, 10 Apr 2007 14:00:28 +0200 Message-ID: <20070410120028.GI8239@elf.ucw.cz> References: <1175810054.3489.34.camel@johannes.berg> <200704060217.50560.rjw@sisk.pl> <1175849322.3489.64.camel@johannes.berg> <200704061141.31677.rjw@sisk.pl> <1175852652.3489.67.camel@johannes.berg> <20070406191903.GD2583@elf.ucw.cz> <1175896767.8459.6.camel@johannes.berg> <20070410113623.GF8239@elf.ucw.cz> <1176205508.8459.89.camel@johannes.berg> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <1176205508.8459.89.camel@johannes.berg> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Johannes Berg Cc: linux-pm List-Id: linux-pm@vger.kernel.org Hi! > > Hmm, and can't you simply create sysdev for decrementer and special > > platform handling? sysdevs should be suspended last... > = > In theory, yes. > = > In practise, however, it seems to be impossible to get a sysdev into the > queue that is suspended before any other sysdevs are suspended (i.e. > right after interrupts are disabled) > = > And then there are the platform functions. In theory, they could be done > with a regular struct device, but in practice they need to be the very > last thing before interrupts are disabled, and that again is impossible > to achieve. Is it feasible to improve sysdev handling to allow this? -- = (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html