ARM: pm: pxa: move cpu_suspend into C code

We don't need a veneer for cpu_suspend, it can be called directly from
C code now.  Move it into the PXA CPU suspend functions, along with
the accumulator register saving/restoring.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-pxa/pxa27x.c

@@ -284,6 +284,11 @@ void pxa27x_cpu_pm_restore(unsigned long *sleep_save)
 void pxa27x_cpu_pm_enter(suspend_state_t state)
 {
 	extern void pxa_cpu_standby(void);
+#ifndef CONFIG_IWMMXT
+	u64 acc0;
+
+	asm volatile("mra %Q0, %R0, acc0" : "=r" (acc0));
+#endif
 
 	/* ensure voltage-change sequencer not initiated, which hangs */
 	PCFR &= ~PCFR_FVC;
@@ -299,7 +304,11 @@ void pxa27x_cpu_pm_enter(suspend_state_t state)
 		pxa_cpu_standby();
 		break;
 	case PM_SUSPEND_MEM:
-		pxa27x_cpu_suspend(pwrmode, PLAT_PHYS_OFFSET - PAGE_OFFSET);
+		cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, pwrmode,
+			    pxa27x_finish_suspend);
+#ifndef CONFIG_IWMMXT
+		asm volatile("mar acc0, %Q0, %R0" : "=r" (acc0));
+#endif
 		break;
 	}
 }