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authorRafael J. Wysocki <rjw@sisk.pl>2011-04-23 00:03:11 +0400
committerRafael J. Wysocki <rjw@sisk.pl>2011-04-24 21:16:09 +0400
commit2eaa03b5bebd1e80014f780d7bf27c3e66daefd6 (patch)
tree9366c07d166eaede876cd7233cc30056f198a93f /arch/arm/mach-pxa/clock-pxa2xx.c
parent905339807bde7bb726001b69fbdf69ab0cf69a9e (diff)
downloadlinux-2eaa03b5bebd1e80014f780d7bf27c3e66daefd6.tar.xz
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/clock-pxa2xx.c')
-rw-r--r--arch/arm/mach-pxa/clock-pxa2xx.c18
1 files changed, 4 insertions, 14 deletions
diff --git a/arch/arm/mach-pxa/clock-pxa2xx.c b/arch/arm/mach-pxa/clock-pxa2xx.c
index 1ce090448493..1d5859d9a0e3 100644
--- a/arch/arm/mach-pxa/clock-pxa2xx.c
+++ b/arch/arm/mach-pxa/clock-pxa2xx.c
@@ -9,7 +9,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
#include <mach/pxa2xx-regs.h>
@@ -33,32 +33,22 @@ const struct clkops clk_pxa2xx_cken_ops = {
#ifdef CONFIG_PM
static uint32_t saved_cken;
-static int pxa2xx_clock_suspend(struct sys_device *d, pm_message_t state)
+static int pxa2xx_clock_suspend(void)
{
saved_cken = CKEN;
return 0;
}
-static int pxa2xx_clock_resume(struct sys_device *d)
+static void pxa2xx_clock_resume(void)
{
CKEN = saved_cken;
- return 0;
}
#else
#define pxa2xx_clock_suspend NULL
#define pxa2xx_clock_resume NULL
#endif
-struct sysdev_class pxa2xx_clock_sysclass = {
- .name = "pxa2xx-clock",
+struct syscore_ops pxa2xx_clock_syscore_ops = {
.suspend = pxa2xx_clock_suspend,
.resume = pxa2xx_clock_resume,
};
-
-static int __init pxa2xx_clock_init(void)
-{
- if (cpu_is_pxa2xx())
- return sysdev_class_register(&pxa2xx_clock_sysclass);
- return 0;
-}
-postcore_initcall(pxa2xx_clock_init);