Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756484Ab1CMNE6 (ORCPT ); Sun, 13 Mar 2011 09:04:58 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:54670 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756453Ab1CMNEz (ORCPT ); Sun, 13 Mar 2011 09:04:55 -0400 From: "Rafael J. Wysocki" To: LKML Subject: [PATCH 10/10] ARM: Use struct syscore_ops instead of sysdevs for PM in timer and leds Date: Sun, 13 Mar 2011 14:04:33 +0100 User-Agent: KMail/1.13.6 (Linux/2.6.38-rc8+; KDE/4.6.0; x86_64; ; ) Cc: Greg KH , Kay Sievers , Linux PM mailing list , Russell King , Magnus Damm , linux-sh@vger.kernel.org, Paul Mundt References: <201103100131.58206.rjw@sisk.pl> <201103122212.40828.rjw@sisk.pl> <201103131402.48129.rjw@sisk.pl> In-Reply-To: <201103131402.48129.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <201103131404.33311.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4625 Lines: 177 From: Rafael J. Wysocki Convert arch/arm/kernel/time.c and arch/arm/kernel/leds.c to using struct syscore_ops for power management instead of sysdev classes and sysdevs. This simplifies the code in arch/arm/kernel/time.c quite a bit and is necessary for removing sysdevs from the kernel entirely in future. Signed-off-by: Rafael J. Wysocki --- arch/arm/include/asm/mach/time.h | 1 - arch/arm/kernel/leds.c | 28 ++++++++++++++++------------ arch/arm/kernel/time.c | 33 +++++++++++---------------------- 3 files changed, 27 insertions(+), 35 deletions(-) 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) + if (system_timer->suspend) 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; } -- 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/