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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/lubbock.c
parent905339807bde7bb726001b69fbdf69ab0cf69a9e (diff)
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/lubbock.c')
-rw-r--r--arch/arm/mach-pxa/lubbock.c21
1 files changed, 6 insertions, 15 deletions
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index 3ede978c83d..e10ddb82714 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -15,7 +15,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
#include <linux/major.h>
#include <linux/fb.h>
#include <linux/interrupt.h>
@@ -176,31 +176,22 @@ static void __init lubbock_init_irq(void)
#ifdef CONFIG_PM
-static int lubbock_irq_resume(struct sys_device *dev)
+static void lubbock_irq_resume(void)
{
LUB_IRQ_MASK_EN = lubbock_irq_enabled;
- return 0;
}
-static struct sysdev_class lubbock_irq_sysclass = {
- .name = "cpld_irq",
+static struct syscore_ops lubbock_irq_syscore_ops = {
.resume = lubbock_irq_resume,
};
-static struct sys_device lubbock_irq_device = {
- .cls = &lubbock_irq_sysclass,
-};
-
static int __init lubbock_irq_device_init(void)
{
- int ret = -ENODEV;
-
if (machine_is_lubbock()) {
- ret = sysdev_class_register(&lubbock_irq_sysclass);
- if (ret == 0)
- ret = sysdev_register(&lubbock_irq_device);
+ register_syscore_ops(&lubbock_irq_syscore_ops);
+ return 0;
}
- return ret;
+ return -ENODEV;
}
device_initcall(lubbock_irq_device_init);