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authorMagnus Damm <damm@opensource.se>2009-10-29 06:51:48 -0400
committerPaul Mundt <lethal@linux-sh.org>2009-10-29 22:54:59 -0400
commit49f42644fd01bc7bd9b6b0a080fee1a89dc66665 (patch)
tree570a5cc04f260ecdb81eb4af5ab3000c8518aa7d /arch/sh/include/asm/suspend.h
parenteb3118f652ea7751ecf6a7e467bb637895e3be3b (diff)
sh: Add notifiers chains for cpu/board code
This patch adds atomic notifier chains for pre/post sleep events. Useful for cpu code and boards that need to save and restore register state before and after entering a sleep mode. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm/suspend.h')
-rw-r--r--arch/sh/include/asm/suspend.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/sh/include/asm/suspend.h b/arch/sh/include/asm/suspend.h
index 5c8ea28ff7a4..d1cc5221645d 100644
--- a/arch/sh/include/asm/suspend.h
+++ b/arch/sh/include/asm/suspend.h
@@ -2,6 +2,7 @@
2#define _ASM_SH_SUSPEND_H 2#define _ASM_SH_SUSPEND_H
3 3
4#ifndef __ASSEMBLY__ 4#ifndef __ASSEMBLY__
5#include <linux/notifier.h>
5static inline int arch_prepare_suspend(void) { return 0; } 6static inline int arch_prepare_suspend(void) { return 0; }
6 7
7#include <asm/ptrace.h> 8#include <asm/ptrace.h>
@@ -19,6 +20,16 @@ void sh_mobile_setup_cpuidle(void);
19static inline void sh_mobile_setup_cpuidle(void) {} 20static inline void sh_mobile_setup_cpuidle(void) {}
20#endif 21#endif
21 22
23/* notifier chains for pre/post sleep hooks */
24extern struct atomic_notifier_head sh_mobile_pre_sleep_notifier_list;
25extern struct atomic_notifier_head sh_mobile_post_sleep_notifier_list;
26
27/* priority levels for notifiers */
28#define SH_MOBILE_SLEEP_BOARD 0
29#define SH_MOBILE_SLEEP_CPU 1
30#define SH_MOBILE_PRE(x) (x)
31#define SH_MOBILE_POST(x) (-(x))
32
22#endif 33#endif
23 34
24/* flags passed to assembly suspend code */ 35/* flags passed to assembly suspend code */