[ARM] S3C: Make IRQ_EINT sleep control common
Move the IRQ_EINT sleep control to be available to all
s3c impelmentations. Since s3c_irqext_wake is not large,
place it in arch/arm/plat-s3c/pm.c as adding it to a new
file would be a waste of compile time.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-s3c/include/plat/pm.h b/arch/arm/plat-s3c/include/plat/pm.h
index 42c75e6..5e27de9 100644
--- a/arch/arm/plat-s3c/include/plat/pm.h
+++ b/arch/arm/plat-s3c/include/plat/pm.h
@@ -77,9 +77,11 @@
extern void s3c_pm_do_restore_core(struct sleep_save *ptr, int count);
#ifdef CONFIG_PM
+extern int s3c_irqext_wake(unsigned int irqno, unsigned int state);
extern int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state);
extern int s3c24xx_irq_resume(struct sys_device *dev);
#else
+#define s3c_irqext_wake NULL
#define s3c24xx_irq_suspend NULL
#define s3c24xx_irq_resume NULL
#endif
diff --git a/arch/arm/plat-s3c/pm.c b/arch/arm/plat-s3c/pm.c
index fea58be..7c736de 100644
--- a/arch/arm/plat-s3c/pm.c
+++ b/arch/arm/plat-s3c/pm.c
@@ -27,6 +27,7 @@
#include <mach/regs-gpio.h>
#include <mach/regs-mem.h>
#include <mach/regs-irq.h>
+#include <asm/irq.h>
#include <plat/pm.h>
#include <plat/pm-core.h>
@@ -100,6 +101,29 @@
static void s3c_pm_restore_uart(void) { }
#endif
+/* The IRQ ext-int code goes here, it is too small to currently bother
+ * with its own file. */
+
+unsigned long s3c_irqwake_intmask = 0xffffffffL;
+unsigned long s3c_irqwake_eintmask = 0xffffffffL;
+
+int s3c_irqext_wake(unsigned int irqno, unsigned int state)
+{
+ unsigned long bit = 1L << IRQ_EINT_BIT(irqno);
+
+ if (!(s3c_irqwake_eintallow & bit))
+ return -ENOENT;
+
+ printk(KERN_INFO "wake %s for irq %d\n",
+ state ? "enabled" : "disabled", irqno);
+
+ if (!state)
+ s3c_irqwake_eintmask |= bit;
+ else
+ s3c_irqwake_eintmask &= ~bit;
+
+ return 0;
+}
/* helper functions to save and restore register state */