arch/arm/mach-gemini/idle.c

   1 /*
   2  * arch/arm/mach-gemini/idle.c
   3  */
   4
   5 #include <linux/init.h>
   6 #include <asm/system.h>
   7 #include <asm/proc-fns.h>
   8
   9 static void gemini_idle(void)
  10 {
  11         /*
  12          * Because of broken hardware we have to enable interrupts or the CPU
  13          * will never wakeup... Acctualy it is not very good to enable
  14          * interrupts first since scheduler can miss a tick, but there is
  15          * no other way around this. Platforms that needs it for power saving
  16          * should enable it in init code, since by default it is
  17          * disabled.
  18          */
  19
  20         /* FIXME: Enabling interrupts here is racy! */
  21         local_irq_enable();
  22         cpu_do_idle();
  23 }
  24
  25 static int __init gemini_idle_init(void)
  26 {
  27         arm_pm_idle = gemini_idle;
  28         return 0;
  29 }
  30
  31 arch_initcall(gemini_idle_init);