diff options
author | Rafael J. Wysocki <rjw@sisk.pl> | 2011-04-22 22:03:11 +0200 |
---|---|---|
committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-04-24 19:16:09 +0200 |
commit | 2eaa03b5bebd1e80014f780d7bf27c3e66daefd6 (patch) | |
tree | 9366c07d166eaede876cd7233cc30056f198a93f /arch/arm/mach-pxa/palmz72.c | |
parent | 905339807bde7bb726001b69fbdf69ab0cf69a9e (diff) | |
download | linux-2eaa03b5bebd1e80014f780d7bf27c3e66daefd6.tar.gz linux-2eaa03b5bebd1e80014f780d7bf27c3e66daefd6.tar.bz2 linux-2eaa03b5bebd1e80014f780d7bf27c3e66daefd6.zip |
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/palmz72.c')
-rw-r--r-- | arch/arm/mach-pxa/palmz72.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c index 3b8a4f37dbbe..65f24f0b77e8 100644 --- a/arch/arm/mach-pxa/palmz72.c +++ b/arch/arm/mach-pxa/palmz72.c @@ -19,7 +19,7 @@ */ #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/delay.h> #include <linux/irq.h> #include <linux/gpio_keys.h> @@ -233,9 +233,9 @@ static struct palmz72_resume_info palmz72_resume_info = { static unsigned long store_ptr; -/* sys_device for Palm Zire 72 PM */ +/* syscore_ops for Palm Zire 72 PM */ -static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg) +static int palmz72_pm_suspend(void) { /* setup the resume_info struct for the original bootloader */ palmz72_resume_info.resume_addr = (u32) cpu_resume; @@ -249,31 +249,23 @@ static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg) return 0; } -static int palmz72_pm_resume(struct sys_device *dev) +static void palmz72_pm_resume(void) { *PALMZ72_SAVE_DWORD = store_ptr; - return 0; } -static struct sysdev_class palmz72_pm_sysclass = { - .name = "palmz72_pm", +static struct syscore_ops palmz72_pm_syscore_ops = { .suspend = palmz72_pm_suspend, .resume = palmz72_pm_resume, }; -static struct sys_device palmz72_pm_device = { - .cls = &palmz72_pm_sysclass, -}; - static int __init palmz72_pm_init(void) { - int ret = -ENODEV; if (machine_is_palmz72()) { - ret = sysdev_class_register(&palmz72_pm_sysclass); - if (ret == 0) - ret = sysdev_register(&palmz72_pm_device); + register_syscore_ops(&palmz72_pm_syscore_ops); + return 0; } - return ret; + return -ENODEV; } device_initcall(palmz72_pm_init); |