ARM: pm: move cpu_init() call into core code
As we have core code dealing with CPU suspend/resume, we can
re-initialize the CPUs exception banked registers via that code rather
than having platforms deal with that level of detail. So, move the
call to cpu_init() out of platform code into core code.
Tested-by: Kevin Hilman <khilman@ti.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index e062677..5392274 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -88,6 +88,7 @@
cpu_resume_after_mmu:
str r5, [r2, r4, lsl #2] @ restore old mapping
mcr p15, 0, r0, c1, c0, 0 @ turn on D-cache
+ bl cpu_init @ restore the und/abt/irq banked regs
ldmfd sp!, {r4 - r11, pc}
ENDPROC(cpu_resume_after_mmu)
diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index 51e1583..37178a8 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -42,7 +42,6 @@
/* *** go zzz *** */
pxa_cpu_pm_fns->enter(state);
- cpu_init();
if (state != PM_SUSPEND_STANDBY && pxa_cpu_pm_fns->restore) {
/* after sleeping, validate the checksum */
diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c
index c4661aa..d35885c 100644
--- a/arch/arm/mach-sa1100/pm.c
+++ b/arch/arm/mach-sa1100/pm.c
@@ -77,8 +77,6 @@
/* go zzz */
sa1100_cpu_suspend(PLAT_PHYS_OFFSET - PAGE_OFFSET);
- cpu_init();
-
/*
* Ensure not to come back here if it wasn't intended
*/
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index 5c0a440..3828191 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -300,10 +300,6 @@
s3c_cpu_save(0, PLAT_PHYS_OFFSET - PAGE_OFFSET);
- /* restore the cpu state using the kernel's cpu init code. */
-
- cpu_init();
-
/* restore the system state */
s3c_pm_restore_core();