Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751234AbeABQm3 (ORCPT + 1 other); Tue, 2 Jan 2018 11:42:29 -0500 Received: from mail.kmu-office.ch ([178.209.48.109]:52706 "EHLO mail.kmu-office.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750960AbeABQm2 (ORCPT ); Tue, 2 Jan 2018 11:42:28 -0500 From: Stefan Agner To: shawnguo@kernel.org, kernel@pengutronix.de Cc: fabio.estevam@nxp.com, robh+dt@kernel.org, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Stefan Agner , Anson Huang Subject: [PATCH 1/7] ARM: imx: add timer stop flag to ARM power off state Date: Tue, 2 Jan 2018 17:42:17 +0100 Message-Id: <20180102164223.15230-1-stefan@agner.ch> X-Mailer: git-send-email 2.15.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: When the CPU is in ARM power off state the ARM architected timers are stopped. The flag is already present in the higher power WAIT mode. This allows to use the ARM generic timer on i.MX 6UL/6ULL SoC. Without the flag the kernel freezes when the timer enters the first time ARM power off mode. Cc: Anson Huang Signed-off-by: Stefan Agner --- arch/arm/mach-imx/cpuidle-imx6sx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-imx/cpuidle-imx6sx.c b/arch/arm/mach-imx/cpuidle-imx6sx.c index c5a5c3a70ab1..d0f14b761ff7 100644 --- a/arch/arm/mach-imx/cpuidle-imx6sx.c +++ b/arch/arm/mach-imx/cpuidle-imx6sx.c @@ -89,6 +89,7 @@ static struct cpuidle_driver imx6sx_cpuidle_driver = { */ .exit_latency = 300, .target_residency = 500, + .flags = CPUIDLE_FLAG_TIMER_STOP, .enter = imx6sx_enter_wait, .name = "LOW-POWER-IDLE", .desc = "ARM power off", -- 2.15.1