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authorRichard Purdie <rpurdie@rpsys.net>2005-11-06 15:03:23 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-06 15:03:23 +0000
commit756c7b748926b0baec6d2a921c3711679282c8fd (patch)
tree6eba4a4e31eef4e40c5bec85bc420006034e6cbe
parentb7ec479553b8755dd95ee988a957cbf2aef351dc (diff)
[ARM] 3113/1: PXA: Allow machines to override (and also reuse) pxa pm functions
Patch from Richard Purdie Update the PXA pm.c file to allow machines (such as the Sharp Zaurus) to override the standard pm functions but reuse/wrap them where needed. The init call is made slightly earlier to give machine code an init level to override them in removing any race. Signed-off-by: Richard Purdie Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/mach-pxa/pm.c16
-rw-r--r--include/asm-arm/arch-pxa/pm.h12
2 files changed, 24 insertions, 4 deletions
diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index ac4dd433616..f74b9af112d 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -12,6 +12,7 @@
*/
#include <linux/config.h>
#include <linux/init.h>
+#include <linux/module.h>
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/time.h>
@@ -19,6 +20,7 @@
#include <asm/hardware.h>
#include <asm/memory.h>
#include <asm/system.h>
+#include <asm/arch/pm.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/lubbock.h>
#include <asm/mach/time.h>
@@ -72,7 +74,7 @@ enum { SLEEP_SAVE_START = 0,
};
-static int pxa_pm_enter(suspend_state_t state)
+int pxa_pm_enter(suspend_state_t state)
{
unsigned long sleep_save[SLEEP_SAVE_SIZE];
unsigned long checksum = 0;
@@ -191,6 +193,8 @@ static int pxa_pm_enter(suspend_state_t state)
return 0;
}
+EXPORT_SYMBOL_GPL(pxa_pm_enter);
+
unsigned long sleep_phys_sp(void *sp)
{
return virt_to_phys(sp);
@@ -199,21 +203,25 @@ unsigned long sleep_phys_sp(void *sp)
/*
* Called after processes are frozen, but before we shut down devices.
*/
-static int pxa_pm_prepare(suspend_state_t state)
+int pxa_pm_prepare(suspend_state_t state)
{
extern int pxa_cpu_pm_prepare(suspend_state_t state);
return pxa_cpu_pm_prepare(state);
}
+EXPORT_SYMBOL_GPL(pxa_pm_prepare);
+
/*
* Called after devices are re-setup, but before processes are thawed.
*/
-static int pxa_pm_finish(suspend_state_t state)
+int pxa_pm_finish(suspend_state_t state)
{
return 0;
}
+EXPORT_SYMBOL_GPL(pxa_pm_finish);
+
/*
* Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk.
*/
@@ -230,4 +238,4 @@ static int __init pxa_pm_init(void)
return 0;
}
-late_initcall(pxa_pm_init);
+device_initcall(pxa_pm_init);
diff --git a/include/asm-arm/arch-pxa/pm.h b/include/asm-arm/arch-pxa/pm.h
new file mode 100644
index 00000000000..7a8a1cdf430
--- /dev/null
+++ b/include/asm-arm/arch-pxa/pm.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2005 Richard Purdie
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+extern int pxa_pm_prepare(suspend_state_t state);
+extern int pxa_pm_enter(suspend_state_t state);
+extern int pxa_pm_finish(suspend_state_t state);