ARM: mach-msm: hook special idle handlers to arm_pm_idle

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: David Brown <davidb@codeaurora.org>

arch/arm/mach-msm/idle.S → arch/arm/mach-msm/idle.c

-/* arch/arm/mach-msm/include/mach/idle.S
+/* arch/arm/mach-msm/idle.c
  *
  * Idle processing for MSM7K - work around bugs with SWFI.
  *
@@ -16,21 +16,34 @@
  *
  */
 
-#include <linux/linkage.h>
-#include <asm/assembler.h>
+#include <linux/init.h>
+#include <asm/system.h>
 
-ENTRY(arch_idle)
+static void msm_idle(void)
+{
 #ifdef CONFIG_MSM7X00A_IDLE
-	mrc     p15, 0, r1, c1, c0, 0    /* read current CR    */
-	bic     r0, r1, #(1 << 2)        /* clear dcache bit   */
-	bic     r0, r0, #(1 << 12)       /* clear icache bit   */
-	mcr     p15, 0, r0, c1, c0, 0    /* disable d/i cache  */
+	asm volatile (
 
-	mov     r0, #0                   /* prepare wfi value  */
-	mcr     p15, 0, r0, c7, c10, 0   /* flush the cache    */
-	mcr     p15, 0, r0, c7, c10, 4   /* memory barrier     */
-	mcr     p15, 0, r0, c7, c0, 4    /* wait for interrupt */
+	"mrc     p15, 0, r1, c1, c0, 0    /* read current CR    */ \n\t"
+	"bic     r0, r1, #(1 << 2)        /* clear dcache bit   */ \n\t"
+	"bic     r0, r0, #(1 << 12)       /* clear icache bit   */ \n\t"
+	"mcr     p15, 0, r0, c1, c0, 0    /* disable d/i cache  */ \n\t"
 
-	mcr     p15, 0, r1, c1, c0, 0    /* restore d/i cache  */
+	"mov     r0, #0                   /* prepare wfi value  */ \n\t"
+	"mcr     p15, 0, r0, c7, c10, 0   /* flush the cache    */ \n\t"
+	"mcr     p15, 0, r0, c7, c10, 4   /* memory barrier     */ \n\t"
+	"mcr     p15, 0, r0, c7, c0, 4    /* wait for interrupt */ \n\t"
+
+	"mcr     p15, 0, r1, c1, c0, 0    /* restore d/i cache  */ \n\t"
+
+	: : : "r0","r1" );
 #endif
-	mov     pc, lr
+}
+
+static int __init msm_idle_init(void)
+{
+	arm_pm_idle = msm_idle;
+	return 0;
+}
+
+arch_initcall(msm_idle_init);

arch/arm/mach-msm/include/mach/system.h

@@ -12,7 +12,10 @@
  * GNU General Public License for more details.
  *
  */
-void arch_idle(void);
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
 
 /* low level hardware reset hook -- for example, hitting the
  * PSHOLD line on the PMIC to hard reset the system