drivers: macintosh: rack-meter: limit idle ticks to total ticks
Limit idle ticks to total ticks. This prevents the annoying rackmeter
leds fully ON / OFF blinking state that happens on fully idling
G5 Xserve systems.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index caaec65..ba7e3306 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -227,6 +227,7 @@
total_idle_ticks = get_cpu_idle_time(cpu);
idle_ticks = (unsigned int) (total_idle_ticks - rcpu->prev_idle);
+ idle_ticks = min(idle_ticks, total_ticks);
rcpu->prev_idle = total_idle_ticks;
/* We do a very dumb calculation to update the LEDs for now,