[ARM] S3C24XX: Split PM code from arch/arm/plat-s3c24xx/irq.c

Split the PM code out of arch/arm/plat-s3c24xx/irq.c to
remove some of the #ifdefs being used. Also fix a couple
of places where the absecnce of a function was redefined
to the same thing.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

4 files changed, 125 insertions, 118 deletions

diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index 1e0767b266b8..636cb12711df 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -27,6 +27,7 @@ obj-$(CONFIG_CPU_S3C244X)	+= s3c244x-irq.o
 obj-$(CONFIG_CPU_S3C244X)       += s3c244x-clock.o
 obj-$(CONFIG_PM_SIMTEC)         += pm-simtec.o
 obj-$(CONFIG_PM)                += pm.o
+obj-$(CONFIG_PM)                += irq-pm.o
 obj-$(CONFIG_PM)                += sleep.o
 obj-$(CONFIG_HAVE_PWM)          += pwm.o
 obj-$(CONFIG_S3C2410_CLOCK)     += s3c2410-clock.o
diff --git a/arch/arm/plat-s3c24xx/include/plat/irq.h b/arch/arm/plat-s3c24xx/include/plat/irq.h
index 45746a995343..97b6884ea0dc 100644
--- a/arch/arm/plat-s3c24xx/include/plat/irq.h
+++ b/arch/arm/plat-s3c24xx/include/plat/irq.h
@@ -10,6 +10,12 @@
  * published by the Free Software Foundation.
 */
 
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <mach/regs-irq.h>
+#include <mach/regs-gpio.h>
+
 #define irqdbf(x...)
 #define irqdbf2(x...)
 
@@ -102,7 +108,9 @@ s3c_irqsub_ack(unsigned int irqno, unsigned int parentmask, unsigned int group)
 
 #ifdef CONFIG_PM
 extern int s3c_irq_wake(unsigned int irqno, unsigned int state);
+extern int s3c_irqext_wake(unsigned int irqno, unsigned int state);
 #else
+#define s3c_irqext_wake NULL
 #define s3c_irq_wake NULL
 #endif
 
diff --git a/arch/arm/plat-s3c24xx/irq-pm.c b/arch/arm/plat-s3c24xx/irq-pm.c
new file mode 100644
index 000000000000..86c68804f098
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/irq-pm.c
@@ -0,0 +1,116 @@
+/* linux/arch/arm/plat-s3c24xx/irq-om.c
+ *
+ * Copyright (c) 2003,2004 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C24XX - IRQ PM code
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/sysdev.h>
+
+#include <plat/cpu.h>
+#include <plat/pm.h>
+#include <plat/irq.h>
+
+/* state for IRQs over sleep */
+
+/* default is to allow for EINT0..EINT15, and IRQ_RTC as wakeup sources
+ *
+ * set bit to 1 in allow bitfield to enable the wakeup settings on it
+*/
+
+unsigned long s3c_irqwake_intallow      = 1L << (IRQ_RTC - IRQ_EINT0) | 0xfL;
+unsigned long s3c_irqwake_intmask       = 0xffffffffL;
+unsigned long s3c_irqwake_eintallow     = 0x0000fff0L;
+unsigned long s3c_irqwake_eintmask      = 0xffffffffL;
+
+int
+s3c_irq_wake(unsigned int irqno, unsigned int state)
+{
+        unsigned long irqbit = 1 << (irqno - IRQ_EINT0);
+
+        if (!(s3c_irqwake_intallow & irqbit))
+                return -ENOENT;
+
+        printk(KERN_INFO "wake %s for irq %d\n",
+               state ? "enabled" : "disabled", irqno);
+
+        if (!state)
+                s3c_irqwake_intmask |= irqbit;
+        else
+                s3c_irqwake_intmask &= ~irqbit;
+
+        return 0;
+}
+
+int s3c_irqext_wake(unsigned int irqno, unsigned int state)
+{
+        unsigned long bit = 1L << (irqno - EXTINT_OFF);
+
+        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;
+}
+
+static struct sleep_save irq_save[] = {
+        SAVE_ITEM(S3C2410_INTMSK),
+        SAVE_ITEM(S3C2410_INTSUBMSK),
+};
+
+/* the extint values move between the s3c2410/s3c2440 and the s3c2412
+ * so we use an array to hold them, and to calculate the address of
+ * the register at run-time
+*/
+
+static unsigned long save_extint[3];
+static unsigned long save_eintflt[4];
+static unsigned long save_eintmask;
+
+int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state)
+{
+        unsigned int i;
+
+        for (i = 0; i < ARRAY_SIZE(save_extint); i++)
+                save_extint[i] = __raw_readl(S3C24XX_EXTINT0 + (i*4));
+
+        for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
+                save_eintflt[i] = __raw_readl(S3C24XX_EINFLT0 + (i*4));
+
+        s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save));
+        save_eintmask = __raw_readl(S3C24XX_EINTMASK);
+
+        return 0;
+}
+
+int s3c24xx_irq_resume(struct sys_device *dev)
+{
+        unsigned int i;
+
+        for (i = 0; i < ARRAY_SIZE(save_extint); i++)
+                __raw_writel(save_extint[i], S3C24XX_EXTINT0 + (i*4));
+
+        for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
+                __raw_writel(save_eintflt[i], S3C24XX_EINFLT0 + (i*4));
+
+        s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
+        __raw_writel(save_eintmask, S3C24XX_EINTMASK);
+
+        return 0;
+}
diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c
index 2fa8c9f4b354..33fde662ce6d 100644
--- a/arch/arm/plat-s3c24xx/irq.c
+++ b/arch/arm/plat-s3c24xx/irq.c
@@ -55,81 +55,16 @@
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/sysdev.h>
-#include <linux/io.h>
 
-#include <mach/hardware.h>
 #include <asm/irq.h>
-
 #include <asm/mach/irq.h>
 
 #include <plat/regs-irqtype.h>
-#include <mach/regs-irq.h>
-#include <mach/regs-gpio.h>
 
 #include <plat/cpu.h>
 #include <plat/pm.h>
 #include <plat/irq.h>
 
-/* wakeup irq control */
-
-#ifdef CONFIG_PM
-
-/* state for IRQs over sleep */
-
-/* default is to allow for EINT0..EINT15, and IRQ_RTC as wakeup sources
- *
- * set bit to 1 in allow bitfield to enable the wakeup settings on it
-*/
-
-unsigned long s3c_irqwake_intallow      = 1L << (IRQ_RTC - IRQ_EINT0) | 0xfL;
-unsigned long s3c_irqwake_intmask       = 0xffffffffL;
-unsigned long s3c_irqwake_eintallow     = 0x0000fff0L;
-unsigned long s3c_irqwake_eintmask      = 0xffffffffL;
-
-int
-s3c_irq_wake(unsigned int irqno, unsigned int state)
-{
-        unsigned long irqbit = 1 << (irqno - IRQ_EINT0);
-
-        if (!(s3c_irqwake_intallow & irqbit))
-                return -ENOENT;
-
-        printk(KERN_INFO "wake %s for irq %d\n",
-               state ? "enabled" : "disabled", irqno);
-
-        if (!state)
-                s3c_irqwake_intmask |= irqbit;
-        else
-                s3c_irqwake_intmask &= ~irqbit;
-
-        return 0;
-}
-
-static int
-s3c_irqext_wake(unsigned int irqno, unsigned int state)
-{
-        unsigned long bit = 1L << (irqno - EXTINT_OFF);
-
-        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;
-}
-
-#else
-#define s3c_irqext_wake NULL
-#define s3c_irq_wake NULL
-#endif
-
-
 static void
 s3c_irq_mask(unsigned int irqno)
 {
@@ -590,59 +525,6 @@ s3c_irq_demux_extint4t7(unsigned int irq,
         }
 }
 
-#ifdef CONFIG_PM
-
-static struct sleep_save irq_save[] = {
-        SAVE_ITEM(S3C2410_INTMSK),
-        SAVE_ITEM(S3C2410_INTSUBMSK),
-};
-
-/* the extint values move between the s3c2410/s3c2440 and the s3c2412
- * so we use an array to hold them, and to calculate the address of
- * the register at run-time
-*/
-
-static unsigned long save_extint[3];
-static unsigned long save_eintflt[4];
-static unsigned long save_eintmask;
-
-int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state)
-{
-        unsigned int i;
-
-        for (i = 0; i < ARRAY_SIZE(save_extint); i++)
-                save_extint[i] = __raw_readl(S3C24XX_EXTINT0 + (i*4));
-
-        for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
-                save_eintflt[i] = __raw_readl(S3C24XX_EINFLT0 + (i*4));
-
-        s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save));
-        save_eintmask = __raw_readl(S3C24XX_EINTMASK);
-
-        return 0;
-}
-
-int s3c24xx_irq_resume(struct sys_device *dev)
-{
-        unsigned int i;
-
-        for (i = 0; i < ARRAY_SIZE(save_extint); i++)
-                __raw_writel(save_extint[i], S3C24XX_EXTINT0 + (i*4));
-
-        for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
-                __raw_writel(save_eintflt[i], S3C24XX_EINFLT0 + (i*4));
-
-        s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
-        __raw_writel(save_eintmask, S3C24XX_EINTMASK);
-
-        return 0;
-}
-
-#else
-#define s3c24xx_irq_suspend NULL
-#define s3c24xx_irq_resume  NULL
-#endif
-
 /* s3c24xx_init_irq
  *
  * Initialise S3C2410 IRQ system