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

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Replace the sysdev class and struct sys_device used for power
management in the OMAP's GPIO code with a struct syscore_ops object
which is simpler.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Kevin Hilman <khilman@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Rafael J. Wysocki 2011-04-22 22:02:46 +02:00
parent 328f5cc302
commit 3c437ffd20
1 changed files with 9 additions and 26 deletions
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35
arch/arm/plat-omap/gpio.c
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@ -17,7 +17,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/sysdev.h>
#include <linux/syscore_ops.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
@ -1372,9 +1372,7 @@ static const struct dev_pm_ops omap_mpuio_dev_pm_ops = {
.resume_noirq = omap_mpuio_resume_noirq,
};
/* use platform_driver for this, now that there's no longer any
* point to sys_device (other than not disturbing old code).
*/
/* use platform_driver for this. */
static struct platform_driver omap_mpuio_driver = {
.driver = {
.name = "mpuio",
@ -1745,7 +1743,7 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev)
}
#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg)
static int omap_gpio_suspend(void)
{
int i;
@ -1795,12 +1793,12 @@ static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg)
return 0;
}
static int omap_gpio_resume(struct sys_device *dev)
static void omap_gpio_resume(void)
{
int i;
if (!cpu_class_is_omap2() && !cpu_is_omap16xx())
return 0;
return;
for (i = 0; i < gpio_bank_count; i++) {
struct gpio_bank *bank = &gpio_bank[i];
@ -1836,21 +1834,13 @@ static int omap_gpio_resume(struct sys_device *dev)
__raw_writel(bank->saved_wakeup, wake_set);
spin_unlock_irqrestore(&bank->lock, flags);
}
return 0;
}
static struct sysdev_class omap_gpio_sysclass = {
.name = "gpio",
static struct syscore_ops omap_gpio_syscore_ops = {
.suspend = omap_gpio_suspend,
.resume = omap_gpio_resume,
};
static struct sys_device omap_gpio_device = {
.id = 0,
.cls = &omap_gpio_sysclass,
};
#endif
#ifdef CONFIG_ARCH_OMAP2PLUS
@ -2108,21 +2098,14 @@ postcore_initcall(omap_gpio_drv_reg);
static int __init omap_gpio_sysinit(void)
{
int ret = 0;
mpuio_init();
#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
if (cpu_is_omap16xx() || cpu_class_is_omap2()) {
if (ret == 0) {
ret = sysdev_class_register(&omap_gpio_sysclass);
if (ret == 0)
ret = sysdev_register(&omap_gpio_device);
}
}
if (cpu_is_omap16xx() || cpu_class_is_omap2())
register_syscore_ops(&omap_gpio_syscore_ops);
#endif
return ret;
return 0;
}
arch_initcall(omap_gpio_sysinit);