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ARM / PXA: Use struct syscore_ops for "core" power management

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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>
This commit is contained in:
Rafael J. Wysocki
2011-04-22 22:03:11 +02:00
parent 905339807b
commit 2eaa03b5be
31 changed files with 110 additions and 307 deletions
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25
arch/arm/mach-pxa/pxa25x.c
View File

@@ -21,7 +21,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/suspend.h>
#include <linux/sysdev.h>
#include <linux/syscore_ops.h>
#include <linux/irq.h>
#include <asm/mach/map.h>
@@ -350,21 +350,9 @@ static struct platform_device *pxa25x_devices[] __initdata = {
&pxa_device_asoc_platform,
};
static struct sys_device pxa25x_sysdev[] = {
{
.cls = &pxa_irq_sysclass,
}, {
.cls = &pxa2xx_mfp_sysclass,
}, {
.cls = &pxa_gpio_sysclass,
}, {
.cls = &pxa2xx_clock_sysclass,
}
};
static int __init pxa25x_init(void)
{
int i, ret = 0;
int ret = 0;
if (cpu_is_pxa25x()) {
@@ -377,11 +365,10 @@ static int __init pxa25x_init(void)
pxa25x_init_pm();
for (i = 0; i < ARRAY_SIZE(pxa25x_sysdev); i++) {
ret = sysdev_register(&pxa25x_sysdev[i]);
if (ret)
pr_err("failed to register sysdev[%d]\n", i);
}
register_syscore_ops(&pxa_irq_syscore_ops);
register_syscore_ops(&pxa2xx_mfp_syscore_ops);
register_syscore_ops(&pxa_gpio_syscore_ops);
register_syscore_ops(&pxa2xx_clock_syscore_ops);
ret = platform_add_devices(pxa25x_devices,
ARRAY_SIZE(pxa25x_devices));