From patchwork Thu Jan 6 07:13:18 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Guo X-Patchwork-Id: 77695 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 2A9F0B70E0 for ; Thu, 6 Jan 2011 18:12:24 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754232Ab1AFHMS (ORCPT ); Thu, 6 Jan 2011 02:12:18 -0500 Received: from am1ehsobe003.messaging.microsoft.com ([213.199.154.206]:3983 "EHLO AM1EHSOBE003.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754030Ab1AFHMP (ORCPT ); Thu, 6 Jan 2011 02:12:15 -0500 Received: from mail75-am1-R.bigfish.com (10.3.201.242) by AM1EHSOBE003.bigfish.com (10.3.204.23) with Microsoft SMTP Server id 14.1.225.8; Thu, 6 Jan 2011 07:12:14 +0000 Received: from mail75-am1 (localhost.localdomain [127.0.0.1]) by mail75-am1-R.bigfish.com (Postfix) with ESMTP id 872881E81DC; Thu, 6 Jan 2011 07:12:14 +0000 (UTC) X-SpamScore: -1 X-BigFish: VS-1(zzbb2cK10d1Ic8kzz1202hzz8275bhz2dh2a8h668h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null); UIP:(null); IPVD:NLI; H:az33egw02.freescale.net; RD:az33egw02.freescale.net; EFVD:NLI Received: from mail75-am1 (localhost.localdomain [127.0.0.1]) by mail75-am1 (MessageSwitch) id 1294297934315040_19808; Thu, 6 Jan 2011 07:12:14 +0000 (UTC) Received: from AM1EHSMHS006.bigfish.com (unknown [10.3.201.247]) by mail75-am1.bigfish.com (Postfix) with ESMTP id 3E38211E804F; Thu, 6 Jan 2011 07:12:14 +0000 (UTC) Received: from az33egw02.freescale.net (192.88.158.103) by AM1EHSMHS006.bigfish.com (10.3.207.106) with Microsoft SMTP Server (TLS) id 14.1.225.8; Thu, 6 Jan 2011 07:12:13 +0000 Received: from az33smr01.freescale.net (az33smr01.freescale.net [10.64.34.199]) by az33egw02.freescale.net (8.14.3/8.14.3) with ESMTP id p067CBd9029877; Thu, 6 Jan 2011 00:12:11 -0700 (MST) Received: from ubuntu.ap.freescale.net (ubuntu-010192242196.ap.freescale.net [10.192.242.196]) by az33smr01.freescale.net (8.13.1/8.13.0) with ESMTP id p067BL61014249; Thu, 6 Jan 2011 01:12:07 -0600 (CST) From: Shawn Guo To: , , , , , , , , , , , , , , , Subject: [PATCH v4 10/10] ARM: mxs: add initial pm support Date: Thu, 6 Jan 2011 15:13:18 +0800 Message-ID: <1294297998-26930-11-git-send-email-shawn.guo@freescale.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1294297998-26930-1-git-send-email-shawn.guo@freescale.com> References: <1294297998-26930-1-git-send-email-shawn.guo@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This is a very initial pm support and basically does nothing. With this pm support entry, drivers can start testing their own pm functions. Signed-off-by: Shawn Guo --- Changes for v2: - Let build of pm.c depend on CONFIG_PM - Remove the blank line above device_initcall in pm.c arch/arm/mach-mxs/Makefile | 2 ++ arch/arm/mach-mxs/pm.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-mxs/pm.c diff --git a/arch/arm/mach-mxs/Makefile b/arch/arm/mach-mxs/Makefile index f23ebbd..45a2925 100644 --- a/arch/arm/mach-mxs/Makefile +++ b/arch/arm/mach-mxs/Makefile @@ -1,6 +1,8 @@ # Common support obj-y := clock.o devices.o gpio.o icoll.o iomux.o ocotp.o system.o timer.o +obj-$(CONFIG_PM) += pm.o + obj-$(CONFIG_SOC_IMX23) += clock-mx23.o mm-mx23.o obj-$(CONFIG_SOC_IMX28) += clock-mx28.o mm-mx28.o diff --git a/arch/arm/mach-mxs/pm.c b/arch/arm/mach-mxs/pm.c new file mode 100644 index 0000000..fb042da --- /dev/null +++ b/arch/arm/mach-mxs/pm.c @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2010 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include + +static int mxs_suspend_enter(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_MEM: + arch_idle(); + break; + + default: + return -EINVAL; + } + return 0; +} + +static struct platform_suspend_ops mxs_suspend_ops = { + .enter = mxs_suspend_enter, + .valid = suspend_valid_only_mem, +}; + +static int __init mxs_pm_init(void) +{ + suspend_set_ops(&mxs_suspend_ops); + return 0; +} +device_initcall(mxs_pm_init);