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authorRafael J. Wysocki <rjw@sisk.pl>2011-04-22 22:03:11 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2011-04-24 19:16:09 +0200
commit2eaa03b5bebd1e80014f780d7bf27c3e66daefd6 (patch)
tree9366c07d166eaede876cd7233cc30056f198a93f /arch/arm/mach-pxa/mainstone.c
parent905339807bde7bb726001b69fbdf69ab0cf69a9e (diff)
downloadop-kernel-dev-2eaa03b5bebd1e80014f780d7bf27c3e66daefd6.zip
op-kernel-dev-2eaa03b5bebd1e80014f780d7bf27c3e66daefd6.tar.gz
ARM / PXA: Use struct syscore_ops for "core" power management
Replace sysdev classes and struct sys_device objects used for "core" power management by the PXA platform code with struct syscore_ops objects that are simpler. This 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>
Diffstat (limited to 'arch/arm/mach-pxa/mainstone.c')
-rw-r--r--arch/arm/mach-pxa/mainstone.c22
1 files changed, 6 insertions, 16 deletions
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 95163ba..3479e2b 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -15,7 +15,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/bitops.h>
@@ -185,31 +185,21 @@ static void __init mainstone_init_irq(void)
#ifdef CONFIG_PM
-static int mainstone_irq_resume(struct sys_device *dev)
+static void mainstone_irq_resume(void)
{
MST_INTMSKENA = mainstone_irq_enabled;
- return 0;
}
-static struct sysdev_class mainstone_irq_sysclass = {
- .name = "cpld_irq",
+static struct syscore_ops mainstone_irq_syscore_ops = {
.resume = mainstone_irq_resume,
};
-static struct sys_device mainstone_irq_device = {
- .cls = &mainstone_irq_sysclass,
-};
-
static int __init mainstone_irq_device_init(void)
{
- int ret = -ENODEV;
+ if (machine_is_mainstone())
+ register_syscore_ops(&mainstone_irq_syscore_ops);
- if (machine_is_mainstone()) {
- ret = sysdev_class_register(&mainstone_irq_sysclass);
- if (ret == 0)
- ret = sysdev_register(&mainstone_irq_device);
- }
- return ret;
+ return 0;
}
device_initcall(mainstone_irq_device_init);
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