Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753607AbbF3RVW (ORCPT ); Tue, 30 Jun 2015 13:21:22 -0400 Received: from down.free-electrons.com ([37.187.137.238]:50959 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752379AbbF3RUf (ORCPT ); Tue, 30 Jun 2015 13:20:35 -0400 From: Gregory CLEMENT To: Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , Gregory CLEMENT Cc: Thomas Petazzoni , Ezequiel Garcia , linux-arm-kernel@lists.infradead.org, Maxime Ripard , Boris BREZILLON , Lior Amsalem , Tawfik Bayouk , Nadav Haklai , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/4] ARM: mvebu: Warn about the wake-up sources not taken into account in suspend Date: Tue, 30 Jun 2015 19:19:00 +0200 Message-Id: <1435684740-24912-5-git-send-email-gregory.clement@free-electrons.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1435684740-24912-1-git-send-email-gregory.clement@free-electrons.com> References: <1435684740-24912-1-git-send-email-gregory.clement@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1492 Lines: 37 On the Armada 370/XP/38x/39x SoCs when the suspend to ram feature is supported, the SoC is shutdown and will be waken up by an external micro-controller, so there is no possibility to setup wake-up source from Linux. However, in standby mode, the SoCs stay powered and it is possible to wake-up from any interrupt sources. As, when user decide to setup a wake-up source, there is no way to know if they will be wake-up source from suspend or from standby, then we chose allowing to setup all the interrupt as wake-up sources. The purpose of this patch is to inform the user that in suspend to ram mode, the wake-up sources won't be taken into consideration. Signed-off-by: Gregory CLEMENT --- arch/arm/mach-mvebu/pm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-mvebu/pm.c b/arch/arm/mach-mvebu/pm.c index 264073a777d8..4402dcfa7c56 100644 --- a/arch/arm/mach-mvebu/pm.c +++ b/arch/arm/mach-mvebu/pm.c @@ -235,6 +235,7 @@ static int mvebu_pm_enter(suspend_state_t state) cpu_do_idle(); break; case PM_SUSPEND_MEM: + pr_warn("None of the wakeup sources will be taken into account in suspend to ram\n"); return mvebu_enter_suspend(); default: return -EINVAL; -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/