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Index: linux-2.6.24.3/arch/powerpc/kernel/idle.c
===================================================================
--- linux-2.6.24.3.orig/arch/powerpc/kernel/idle.c 2008-02-29 14:49:40.000000000 +0100
+++ linux-2.6.24.3/arch/powerpc/kernel/idle.c 2008-02-29 16:29:23.000000000 +0100
@@ -19,6 +19,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/leds.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/smp.h>
@@ -51,6 +52,12 @@
__setup("powersave=off", powersave_off);
/*
+ * CPU activity indicator.
+ */
+void (*leds_idle)(int is_idle);
+EXPORT_SYMBOL(leds_idle);
+
+/*
* The body of the idle task.
*/
void cpu_idle(void)
@@ -64,7 +71,8 @@
while (!need_resched() && !need_resched_delayed() &&
!cpu_should_die()) {
ppc64_runlatch_off();
-
+ if (leds_idle)
+ leds_idle(1);
if (ppc_md.power_save) {
clear_thread_flag(TIF_POLLING_NRFLAG);
/*
@@ -99,6 +107,8 @@
if (cpu_should_die())
cpu_die();
__preempt_enable_no_resched();
+ if (leds_idle)
+ leds_idle(0);
schedule();
preempt_disable();
}
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