path: root/include/asm-arm
diff options
authorEric Miao <eric.y.miao@gmail.com>2007-07-18 11:38:45 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-07-20 17:25:10 +0100
commit711be5ccfe9a02ba560aa918a008c31ea4760163 (patch)
treeb54cba04944a5ae0cb8a2d8ecd4d8efd14f2e495 /include/asm-arm
parente09d02e123fb6944af23a0697369ebcfc15acf73 (diff)
[ARM] 4488/1: pxa: move pxa25x/pxa27x specific code out of pm.c
1. introduce a structure pxa_cpu_pm_fns for pxa25x/pxa27x specific operations as follows: struct pxa_cpu_pm_fns { int save_size; void (*save)(unsigned long *); void (*restore)(unsigned long *); int (*valid)(suspend_state_t state); void (*enter)(suspend_state_t state); } 2. processor specific registers saving and restoring are performed by calling the corresponding (*save) and (*restore) 3. pxa_cpu_pm_fns->save_size should be initialized to the required size for processor specific registers saving, the allocated memory address will be passed to (*save) and (*restore) memory allocation happens early in pxa_pm_init(), and save_size should be assigned prior to this (which is usually true, since pxa_pm_init() happens in device_initcall() 4. there're some redundancies for those SLEEP_SAVE_XXX and related macros, will be fixed later, one way possible is for the system devices to handle the specific registers saving and restoring Signed-off-by: eric miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm')
1 files changed, 10 insertions, 1 deletions
diff --git a/include/asm-arm/arch-pxa/pm.h b/include/asm-arm/arch-pxa/pm.h
index 52243a62c4e7..62b69004819d 100644
--- a/include/asm-arm/arch-pxa/pm.h
+++ b/include/asm-arm/arch-pxa/pm.h
@@ -7,5 +7,14 @@
-extern int pxa_pm_prepare(suspend_state_t state);
+struct pxa_cpu_pm_fns {
+ int save_size;
+ void (*save)(unsigned long *);
+ void (*restore)(unsigned long *);
+ int (*valid)(suspend_state_t state);
+ void (*enter)(suspend_state_t state);
+extern struct pxa_cpu_pm_fns *pxa_cpu_pm_fns;
extern int pxa_pm_enter(suspend_state_t state);