From 328f5cc30290a92ea3ca62b2a63d2b9ebcb0d334 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 22 Apr 2011 22:02:33 +0200 Subject: ARM: Use struct syscore_ops instead of sysdevs for PM in common code Convert some ARM architecture's common code to using struct syscore_ops objects for power management instead of sysdev classes and sysdevs. This simplifies the code and reduces the kernel's memory footprint. It also is necessary for removing sysdevs from the kernel entirely in the future. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman --- arch/arm/vfp/vfpmodule.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) (limited to 'arch/arm/vfp/vfpmodule.c') diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index f74695075e64..f25e7ec89416 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -398,9 +398,9 @@ static void vfp_enable(void *unused) } #ifdef CONFIG_PM -#include +#include -static int vfp_pm_suspend(struct sys_device *dev, pm_message_t state) +static int vfp_pm_suspend(void) { struct thread_info *ti = current_thread_info(); u32 fpexc = fmrx(FPEXC); @@ -420,34 +420,25 @@ static int vfp_pm_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int vfp_pm_resume(struct sys_device *dev) +static void vfp_pm_resume(void) { /* ensure we have access to the vfp */ vfp_enable(NULL); /* and disable it to ensure the next usage restores the state */ fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN); - - return 0; } -static struct sysdev_class vfp_pm_sysclass = { - .name = "vfp", +static struct syscore_ops vfp_pm_syscore_ops = { .suspend = vfp_pm_suspend, .resume = vfp_pm_resume, }; -static struct sys_device vfp_pm_sysdev = { - .cls = &vfp_pm_sysclass, -}; - static void vfp_pm_init(void) { - sysdev_class_register(&vfp_pm_sysclass); - sysdev_register(&vfp_pm_sysdev); + register_syscore_ops(&vfp_pm_syscore_ops); } - #else static inline void vfp_pm_init(void) { } #endif /* CONFIG_PM */ -- cgit v1.2.3