From patchwork Mon Mar 14 19:54:57 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rafael Wysocki X-Patchwork-Id: 634531 Received: from smtp1.linux-foundation.org (smtp1.linux-foundation.org [140.211.169.13]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p2EK1Ctn030178 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL) for ; Mon, 14 Mar 2011 20:01:33 GMT Received: from daredevil.linux-foundation.org (localhost [127.0.0.1]) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id p2EJuN28017066; Mon, 14 Mar 2011 12:56:54 -0700 Received: from ogre.sisk.pl (ogre.sisk.pl [217.79.144.158]) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id p2EJt1lp016920 for ; Mon, 14 Mar 2011 12:55:02 -0700 Received: from localhost (localhost.localdomain [127.0.0.1]) by ogre.sisk.pl (Postfix) with ESMTP id 97B251A5003; Mon, 14 Mar 2011 20:41:46 +0100 (CET) Received: from ogre.sisk.pl ([127.0.0.1]) by localhost (ogre.sisk.pl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 18051-01; Mon, 14 Mar 2011 20:41:29 +0100 (CET) Received: from ferrari.rjw.lan (220-bem-13.acn.waw.pl [82.210.184.220]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ogre.sisk.pl (Postfix) with ESMTP id 2FADE1A485C; Mon, 14 Mar 2011 20:41:29 +0100 (CET) From: "Rafael J. Wysocki" To: Stephen Boyd Date: Mon, 14 Mar 2011 20:54:57 +0100 User-Agent: KMail/1.13.6 (Linux/2.6.38-rc8+; KDE/4.6.0; x86_64; ; ) References: <201103100131.58206.rjw@sisk.pl> <201103131404.33311.rjw@sisk.pl> <4D7DDA9C.9020700@codeaurora.org> In-Reply-To: <4D7DDA9C.9020700@codeaurora.org> MIME-Version: 1.0 Message-Id: <201103142054.57999.rjw@sisk.pl> X-Virus-Scanned: amavisd-new at ogre.sisk.pl using MkS_Vir for Linux Received-SPF: pass (localhost is always allowed.) X-Spam-Status: No, hits=-3.941 required=5 tests=AWL, BAYES_00, OSDL_HEADER_SUBJECT_BRACKETED X-Spam-Checker-Version: SpamAssassin 3.2.4-osdl_revision__1.47__ X-MIMEDefang-Filter: lf$Revision: 1.188 $ X-Scanned-By: MIMEDefang 2.63 on 140.211.169.21 Cc: Russell King , linux-sh@vger.kernel.org, Greg KH , LKML , Kay Sievers , Linux PM mailing list Subject: [linux-pm] [Update] Re: [PATCH 10/10] ARM: Use struct syscore_ops instead of sysdevs for PM in timer and leds X-BeenThere: linux-pm@lists.linux-foundation.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: Linux power management 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 X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Mon, 14 Mar 2011 20:01:33 +0000 (UTC) Index: linux-2.6/arch/arm/kernel/time.c =================================================================== --- linux-2.6.orig/arch/arm/kernel/time.c +++ linux-2.6/arch/arm/kernel/time.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include #include @@ -117,48 +117,37 @@ void timer_tick(void) #endif #if defined(CONFIG_PM) && !defined(CONFIG_GENERIC_CLOCKEVENTS) -static int timer_suspend(struct sys_device *dev, pm_message_t state) +static int timer_suspend(void) { - struct sys_timer *timer = container_of(dev, struct sys_timer, dev); - - if (timer->suspend != NULL) - timer->suspend(); + if (system_timer->suspend) + system_timer->suspend(); return 0; } -static int timer_resume(struct sys_device *dev) +static void timer_resume(void) { - struct sys_timer *timer = container_of(dev, struct sys_timer, dev); - - if (timer->resume != NULL) - timer->resume(); - - return 0; + if (system_timer->resume) + system_timer->resume(); } #else #define timer_suspend NULL #define timer_resume NULL #endif -static struct sysdev_class timer_sysclass = { - .name = "timer", +static struct syscore_ops timer_syscore_ops = { .suspend = timer_suspend, .resume = timer_resume, }; -static int __init timer_init_sysfs(void) +static int __init timer_init_syscore_ops(void) { - int ret = sysdev_class_register(&timer_sysclass); - if (ret == 0) { - system_timer->dev.cls = &timer_sysclass; - ret = sysdev_register(&system_timer->dev); - } + register_syscore_ops(&timer_syscore_ops); - return ret; + return 0; } -device_initcall(timer_init_sysfs); +device_initcall(timer_init_syscore_ops); void __init time_init(void) { Index: linux-2.6/arch/arm/include/asm/mach/time.h =================================================================== --- linux-2.6.orig/arch/arm/include/asm/mach/time.h +++ linux-2.6/arch/arm/include/asm/mach/time.h @@ -34,7 +34,6 @@ * timer interrupt which may be pending. */ struct sys_timer { - struct sys_device dev; void (*init)(void); void (*suspend)(void); void (*resume)(void); Index: linux-2.6/arch/arm/kernel/leds.c =================================================================== --- linux-2.6.orig/arch/arm/kernel/leds.c +++ linux-2.6/arch/arm/kernel/leds.c @@ -10,6 +10,7 @@ #include #include #include +#include #include @@ -69,36 +70,37 @@ static ssize_t leds_store(struct sys_dev static SYSDEV_ATTR(event, 0200, NULL, leds_store); -static int leds_suspend(struct sys_device *dev, pm_message_t state) +static struct sysdev_class leds_sysclass = { + .name = "leds", +}; + +static struct sys_device leds_device = { + .id = 0, + .cls = &leds_sysclass, +}; + +static int leds_suspend(void) { leds_event(led_stop); return 0; } -static int leds_resume(struct sys_device *dev) +static void leds_resume(void) { leds_event(led_start); - return 0; } -static int leds_shutdown(struct sys_device *dev) +static void leds_shutdown(void) { leds_event(led_halted); - return 0; } -static struct sysdev_class leds_sysclass = { - .name = "leds", +static struct syscore_ops leds_syscore_ops = { .shutdown = leds_shutdown, .suspend = leds_suspend, .resume = leds_resume, }; -static struct sys_device leds_device = { - .id = 0, - .cls = &leds_sysclass, -}; - static int __init leds_init(void) { int ret; @@ -107,6 +109,8 @@ static int __init leds_init(void) ret = sysdev_register(&leds_device); if (ret == 0) ret = sysdev_create_file(&leds_device, &attr_event); + if (ret == 0) + register_syscore_ops(&leds_syscore_ops); return ret; }