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authorRafael J. Wysocki <rjw@sisk.pl>2011-04-22 22:03:21 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2011-04-24 19:16:10 +0200
commitbb072c3cf21d1c9a5a2eeb5a00679ee7bf39675b (patch)
tree8b9b425422e11c5cb5012adf68e9e2a3e957358f /arch/arm/mach-s3c2416
parent2eaa03b5bebd1e80014f780d7bf27c3e66daefd6 (diff)
downloadop-kernel-dev-bb072c3cf21d1c9a5a2eeb5a00679ee7bf39675b.zip
op-kernel-dev-bb072c3cf21d1c9a5a2eeb5a00679ee7bf39675b.tar.gz
ARM / Samsung: Use struct syscore_ops for "core" power management
Replace sysdev classes and struct sys_device objects used for "core" power management by Samsung platforms with struct syscore_ops objects that are simpler. This generally reduces the code size and the kernel memory footprint. It also is necessary for removing sysdevs entirely from the kernel in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s3c2416')
-rw-r--r--arch/arm/mach-s3c2416/irq.c2
-rw-r--r--arch/arm/mach-s3c2416/pm.c27
-rw-r--r--arch/arm/mach-s3c2416/s3c2416.c5
3 files changed, 17 insertions, 17 deletions
diff --git a/arch/arm/mach-s3c2416/irq.c b/arch/arm/mach-s3c2416/irq.c
index 77b38f2..28ad20d 100644
--- a/arch/arm/mach-s3c2416/irq.c
+++ b/arch/arm/mach-s3c2416/irq.c
@@ -236,8 +236,6 @@ static int __init s3c2416_irq_add(struct sys_device *sysdev)
static struct sysdev_driver s3c2416_irq_driver = {
.add = s3c2416_irq_add,
- .suspend = s3c24xx_irq_suspend,
- .resume = s3c24xx_irq_resume,
};
static int __init s3c2416_irq_init(void)
diff --git a/arch/arm/mach-s3c2416/pm.c b/arch/arm/mach-s3c2416/pm.c
index 4a04205..41db2b2 100644
--- a/arch/arm/mach-s3c2416/pm.c
+++ b/arch/arm/mach-s3c2416/pm.c
@@ -11,6 +11,7 @@
*/
#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
#include <linux/io.h>
#include <asm/cacheflush.h>
@@ -55,30 +56,26 @@ static int s3c2416_pm_add(struct sys_device *sysdev)
return 0;
}
-static int s3c2416_pm_suspend(struct sys_device *dev, pm_message_t state)
+static struct sysdev_driver s3c2416_pm_driver = {
+ .add = s3c2416_pm_add,
+};
+
+static __init int s3c2416_pm_init(void)
{
- return 0;
+ return sysdev_driver_register(&s3c2416_sysclass, &s3c2416_pm_driver);
}
-static int s3c2416_pm_resume(struct sys_device *dev)
+arch_initcall(s3c2416_pm_init);
+
+
+static void s3c2416_pm_resume(void)
{
/* unset the return-from-sleep amd inform flags */
__raw_writel(0x0, S3C2443_PWRMODE);
__raw_writel(0x0, S3C2412_INFORM0);
__raw_writel(0x0, S3C2412_INFORM1);
-
- return 0;
}
-static struct sysdev_driver s3c2416_pm_driver = {
- .add = s3c2416_pm_add,
- .suspend = s3c2416_pm_suspend,
+struct syscore_ops s3c2416_pm_syscore_ops = {
.resume = s3c2416_pm_resume,
};
-
-static __init int s3c2416_pm_init(void)
-{
- return sysdev_driver_register(&s3c2416_sysclass, &s3c2416_pm_driver);
-}
-
-arch_initcall(s3c2416_pm_init);
diff --git a/arch/arm/mach-s3c2416/s3c2416.c b/arch/arm/mach-s3c2416/s3c2416.c
index ba7fd87..494ce91 100644
--- a/arch/arm/mach-s3c2416/s3c2416.c
+++ b/arch/arm/mach-s3c2416/s3c2416.c
@@ -32,6 +32,7 @@
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
#include <linux/clk.h>
#include <linux/io.h>
@@ -54,6 +55,7 @@
#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/sdhci.h>
+#include <plat/pm.h>
#include <plat/iic-core.h>
#include <plat/fb-core.h>
@@ -95,6 +97,9 @@ int __init s3c2416_init(void)
s3c_fb_setname("s3c2443-fb");
+ register_syscore_ops(&s3c2416_pm_syscore_ops);
+ register_syscore_ops(&s3c24xx_irq_syscore_ops);
+
return sysdev_register(&s3c2416_sysdev);
}
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