sparc32,leon: SMP power down implementation

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 2 deletions

diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 17529298c50a..c8cc461ff75f 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -128,8 +128,16 @@ void cpu_idle(void)
         set_thread_flag(TIF_POLLING_NRFLAG);
         /* endless idle loop with no priority at all */
         while(1) {
-                while (!need_resched())
-                        cpu_relax();
+#ifdef CONFIG_SPARC_LEON
+                if (pm_idle) {
+                        while (!need_resched())
+                                (*pm_idle)();
+                } else
+#endif
+                {
+                        while (!need_resched())
+                                cpu_relax();
+                }
                 preempt_enable_no_resched();
                 schedule();
                 preempt_disable();