diff options
Diffstat (limited to 'arch/arm/mach-pxa/pxa25x.c')
| -rw-r--r-- | arch/arm/mach-pxa/pxa25x.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index e887b7175ef3..7869c3b4e62f 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -16,6 +16,7 @@ * initialization stuff for PXA machines which can be overridden later if * need be. */ +#include <linux/config.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -102,3 +103,35 @@ unsigned int get_lcdclk_frequency_10khz(void) } EXPORT_SYMBOL(get_lcdclk_frequency_10khz); + +#ifdef CONFIG_PM + +int pxa_cpu_pm_prepare(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_MEM: + break; + default: + return -EINVAL; + } + + return 0; +} + +void pxa_cpu_pm_enter(suspend_state_t state) +{ + extern void pxa_cpu_suspend(unsigned int); + extern void pxa_cpu_resume(void); + + CKEN = 0; + + switch (state) { + case PM_SUSPEND_MEM: + /* set resume return address */ + PSPR = virt_to_phys(pxa_cpu_resume); + pxa_cpu_suspend(3); + break; + } +} + +#endif |