avr32: Use generic idle loop

Also replace the idle poll enforcement by the generic functionality.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Link: http://lkml.kernel.org/r/20130321215233.950290809@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 9 insertions, 13 deletions

diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index fd78f58ea79a..073c3c2fa521 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -30,18 +30,9 @@ EXPORT_SYMBOL(pm_power_off);
  * This file handles the architecture-dependent parts of process handling..
  */
 
-void cpu_idle(void)
+void arch_cpu_idle(void)
 {
-        /* endless idle loop with no priority at all */
-        while (1) {
-                tick_nohz_idle_enter();
-                rcu_idle_enter();
-                while (!need_resched())
-                        cpu_idle_sleep();
-                rcu_idle_exit();
-                tick_nohz_idle_exit();
-                schedule_preempt_disabled();
-        }
+        cpu_enter_idle();
 }
 
 void machine_halt(void)
diff --git a/arch/avr32/kernel/time.c b/arch/avr32/kernel/time.c
index 05ad29112ff4..869a1c6ffeee 100644
--- a/arch/avr32/kernel/time.c
+++ b/arch/avr32/kernel/time.c
@@ -12,6 +12,7 @@
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/time.h>
+#include <linux/cpu.h>
 
 #include <asm/sysreg.h>
 
@@ -87,13 +88,17 @@ static void comparator_mode(enum clock_event_mode mode,
                 pr_debug("%s: start\n", evdev->name);
                 /* FALLTHROUGH */
         case CLOCK_EVT_MODE_RESUME:
-                cpu_disable_idle_sleep();
+                /*
+                 * If we're using the COUNT and COMPARE registers we
+                 * need to force idle poll.
+                 */
+                cpu_idle_poll_ctrl(true);
                 break;
         case CLOCK_EVT_MODE_UNUSED:
         case CLOCK_EVT_MODE_SHUTDOWN:
                 sysreg_write(COMPARE, 0);
                 pr_debug("%s: stop\n", evdev->name);
-                cpu_enable_idle_sleep();
+                cpu_idle_poll_ctrl(false);
                 break;
         default:
                 BUG();