From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sudeep Holla Subject: Re: [PATCH v4 2/2] add property of "linux,wakeup" for juno.dts Date: Wed, 16 Sep 2015 09:59:16 +0100 Message-ID: <55F92F64.50904@arm.com> References: <1442386021-5113-1-git-send-email-zhaoyang.huang@linaro.org> <1442386021-5113-2-git-send-email-zhaoyang.huang@linaro.org> <55F92B31.2060608@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from foss.arm.com ([217.140.101.70]:54456 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752002AbbIPI7U (ORCPT ); Wed, 16 Sep 2015 04:59:20 -0400 In-Reply-To: Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Zhaoyang Huang Cc: Sudeep Holla , "linux-pm@vger.kernel.org" , "amit.kucheria@linaro.org" Hi Zhaouyang, On 16/09/15 09:53, Zhaoyang Huang wrote: > Hi Sudeep, Please stop top-posting, I have told you many times now in private. > Sorry for the confusions I made. I am testing the suspend to idle on > juno, which is similar to suspend to ram, while the difference is the > cpu will go into idle itself(you can refer the function freeze_enter()) > instead of running cpu_suspend finally. I find that the pl011 can wakeup > the system by receiving from the tty. > No, it shouldn't be allowed to be configured as wakeup if it can't wakeup from S2R. So please stop sending this patch. I need to see real use case for PL011 as a wakeup source. Also, if we go by your definition, we can make any interrupt as wakeup source. You need to understand that we hardware support for an interrupt to be a wakeup irq. Regards, Sudeep