ARM: s3c24xx: move special idle code to out of line

... and hook it to arm_pm_idle.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>

4 files changed, 29 insertions, 45 deletions

diff --git a/arch/arm/mach-s3c2410/include/mach/system.h b/arch/arm/mach-s3c2410/include/mach/system.h
index 5e215c1a5c8f..3ce4b38ba1fe 100644
--- a/arch/arm/mach-s3c2410/include/mach/system.h
+++ b/arch/arm/mach-s3c2410/include/mach/system.h
@@ -10,45 +10,7 @@
  * published by the Free Software Foundation.
 */
 
-#include <linux/io.h>
-#include <mach/hardware.h>
-
-#include <mach/map.h>
-#include <mach/idle.h>
-
-#include <mach/regs-clock.h>
-
-void (*s3c24xx_idle)(void);
-
-void s3c24xx_default_idle(void)
-{
-        unsigned long tmp;
-        int i;
-
-        /* idle the system by using the idle mode which will wait for an
-         * interrupt to happen before restarting the system.
-         */
-
-        /* Warning: going into idle state upsets jtag scanning */
-
-        __raw_writel(__raw_readl(S3C2410_CLKCON) | S3C2410_CLKCON_IDLE,
-                     S3C2410_CLKCON);
-
-        /* the samsung port seems to do a loop and then unset idle.. */
-        for (i = 0; i < 50; i++) {
-                tmp += __raw_readl(S3C2410_CLKCON); /* ensure loop not optimised out */
-        }
-
-        /* this bit is not cleared on re-start... */
-
-        __raw_writel(__raw_readl(S3C2410_CLKCON) & ~S3C2410_CLKCON_IDLE,
-                     S3C2410_CLKCON);
-}
-
 static void arch_idle(void)
 {
-        if (s3c24xx_idle != NULL)
-                (s3c24xx_idle)();
-        else
-                s3c24xx_default_idle();
+        cpu_do_idle();
 }
diff --git a/arch/arm/mach-s3c2412/s3c2412.c b/arch/arm/mach-s3c2412/s3c2412.c
index aff6e85a97c6..c6eac9871093 100644
--- a/arch/arm/mach-s3c2412/s3c2412.c
+++ b/arch/arm/mach-s3c2412/s3c2412.c
@@ -32,8 +32,6 @@
 #include <asm/proc-fns.h>
 #include <asm/irq.h>
 
-#include <mach/idle.h>
-
 #include <plat/cpu-freq.h>
 
 #include <mach/regs-clock.h>
@@ -164,7 +162,7 @@ void __init s3c2412_map_io(void)
 
         /* set our idle function */
 
-        s3c24xx_idle = s3c2412_idle;
+        arm_pm_idle = s3c2412_idle;
 
         /* register our io-tables */
 
diff --git a/arch/arm/mach-s3c2416/s3c2416.c b/arch/arm/mach-s3c2416/s3c2416.c
index 5287d2808d3e..08bb0355159d 100644
--- a/arch/arm/mach-s3c2416/s3c2416.c
+++ b/arch/arm/mach-s3c2416/s3c2416.c
@@ -44,7 +44,6 @@
 #include <asm/proc-fns.h>
 #include <asm/irq.h>
 
-#include <mach/idle.h>
 #include <mach/regs-s3c2443-clock.h>
 
 #include <plat/gpio-core.h>
@@ -88,8 +87,6 @@ int __init s3c2416_init(void)
 {
         printk(KERN_INFO "S3C2416: Initializing architecture\n");
 
-        /* s3c24xx_idle = s3c2416_idle; */
-
         /* change WDT IRQ number */
         s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
         s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c
index 21f1fda8b661..32a09931350c 100644
--- a/arch/arm/plat-s3c24xx/cpu.c
+++ b/arch/arm/plat-s3c24xx/cpu.c
@@ -32,6 +32,7 @@
 #include <linux/io.h>
 
 #include <mach/hardware.h>
+#include <mach/regs-clock.h>
 #include <asm/irq.h>
 #include <asm/cacheflush.h>
 
@@ -190,8 +191,34 @@ static unsigned long s3c24xx_read_idcode_v4(void)
         return __raw_readl(S3C2410_GSTATUS1);
 }
 
+static void s3c24xx_default_idle(void)
+{
+        unsigned long tmp;
+        int i;
+
+        /* idle the system by using the idle mode which will wait for an
+         * interrupt to happen before restarting the system.
+         */
+
+        /* Warning: going into idle state upsets jtag scanning */
+
+        __raw_writel(__raw_readl(S3C2410_CLKCON) | S3C2410_CLKCON_IDLE,
+                     S3C2410_CLKCON);
+
+        /* the samsung port seems to do a loop and then unset idle.. */
+        for (i = 0; i < 50; i++)
+                tmp += __raw_readl(S3C2410_CLKCON); /* ensure loop not optimised out */
+
+        /* this bit is not cleared on re-start... */
+
+        __raw_writel(__raw_readl(S3C2410_CLKCON) & ~S3C2410_CLKCON_IDLE,
+                     S3C2410_CLKCON);
+}
+
 void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
 {
+        arm_pm_idle = s3c24xx_default_idle;
+
         /* initialise the io descriptors we need for initialisation */
         iotable_init(mach_desc, size);
         iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));