| Nicolas Pitre | 8925b0f | 2011-08-03 06:29:42 -0400 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-gemini/idle.c |
| 3 | */ |
| 4 | |
| 5 | #include <linux/init.h> |
| David Howells | 74c4137 | 2014-02-24 16:48:26 +0100 | [diff] [blame] | 6 | #include <asm/system_misc.h> |
| Nicolas Pitre | 8925b0f | 2011-08-03 06:29:42 -0400 | [diff] [blame] | 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 |
| Thomas Gleixner | f7b861b | 2013-03-21 22:49:38 +0100 | [diff] [blame] | 16 | * should enable it in init code, since by default it is |
| Nicolas Pitre | 8925b0f | 2011-08-03 06:29:42 -0400 | [diff] [blame] | 17 | * disabled. |
| 18 | */ |
| Thomas Gleixner | f7b861b | 2013-03-21 22:49:38 +0100 | [diff] [blame] | 19 | |
| 20 | /* FIXME: Enabling interrupts here is racy! */ |
| Nicolas Pitre | 8925b0f | 2011-08-03 06:29:42 -0400 | [diff] [blame] | 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); |