mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-01 05:54:59 +02:00
e2813918b9
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17665 3c298f89-4303-0410-b956-a3cf2f4a3e73
73 lines
2.1 KiB
Diff
73 lines
2.1 KiB
Diff
diff --git a/arch/arm/plat-s3c/pm.c b/arch/arm/plat-s3c/pm.c
|
|
index 8d97db2..a7667d5 100644
|
|
--- a/arch/arm/plat-s3c/pm.c
|
|
+++ b/arch/arm/plat-s3c/pm.c
|
|
@@ -301,11 +301,14 @@ static int s3c_pm_enter(suspend_state_t state)
|
|
|
|
s3c_pm_arch_stop_clocks();
|
|
|
|
- /* s3c_cpu_save will also act as our return point from when
|
|
- * we resume as it saves its own register state and restores it
|
|
- * during the resume. */
|
|
+ /* s3c2410_cpu_save will also act as our return point from when
|
|
+ * we resume as it saves its own register state, so use the return
|
|
+ * code to differentiate return from save and return from sleep */
|
|
|
|
- s3c_cpu_save(regs_save);
|
|
+ if (s3c_cpu_save(regs_save) == 0) {
|
|
+ flush_cache_all();
|
|
+ pm_cpu_sleep();
|
|
+ }
|
|
|
|
/* restore the cpu state using the kernel's cpu init code. */
|
|
|
|
diff --git a/arch/arm/plat-s3c24xx/irq-pm.c b/arch/arm/plat-s3c24xx/irq-pm.c
|
|
index b7acf1a..925514e 100644
|
|
--- a/arch/arm/plat-s3c24xx/irq-pm.c
|
|
+++ b/arch/arm/plat-s3c24xx/irq-pm.c
|
|
@@ -15,6 +15,7 @@
|
|
#include <linux/module.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/sysdev.h>
|
|
+#include <linux/irq.h>
|
|
|
|
#include <plat/cpu.h>
|
|
#include <plat/pm.h>
|
|
@@ -80,7 +81,9 @@ int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state)
|
|
|
|
int s3c24xx_irq_resume(struct sys_device *dev)
|
|
{
|
|
- unsigned int i;
|
|
+ unsigned int i, irq;
|
|
+ unsigned long eintpnd;
|
|
+ struct irq_desc *desc;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(save_extint); i++)
|
|
__raw_writel(save_extint[i], S3C24XX_EXTINT0 + (i*4));
|
|
@@ -91,5 +94,25 @@ int s3c24xx_irq_resume(struct sys_device *dev)
|
|
s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
|
|
__raw_writel(save_eintmask, S3C24XX_EINTMASK);
|
|
|
|
+ /*
|
|
+ * ACK those interrupts which are now masked and pending.
|
|
+ * Level interrupts if not ACKed here, create an interrupt storm
|
|
+ * because they are not handled at all.
|
|
+ */
|
|
+
|
|
+ eintpnd = __raw_readl(S3C24XX_EINTPEND);
|
|
+
|
|
+ eintpnd &= save_eintmask;
|
|
+ eintpnd &= ~0xff; /* ignore lower irqs */
|
|
+
|
|
+ while (eintpnd) {
|
|
+ irq = __ffs(eintpnd);
|
|
+ eintpnd &= ~(1 << irq);
|
|
+
|
|
+ irq += (IRQ_EINT4 - 4);
|
|
+ desc = irq_to_desc(irq);
|
|
+ desc->chip->ack(irq);
|
|
+ }
|
|
+
|
|
return 0;
|
|
}
|