diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c
index ea894bf..29e144f 100644
--- a/drivers/w1/masters/ds1wm.c
+++ b/drivers/w1/masters/ds1wm.c
@@ -160,8 +160,10 @@
 	 *     625 us - 60 us - 240 us - 100 ns = 324.9 us
 	 *
 	 * We'll wait a bit longer just to be sure.
+	 * Was udelay(500), but if it is going to busywait the cpu that long,
+	 * might as well come back later.
 	 */
-	udelay(500);
+	msleep(1);
 
 	ds1wm_write_register(ds1wm_data, DS1WM_INT_EN,
 		DS1WM_INTEN_ERBF | DS1WM_INTEN_ETMT | DS1WM_INTEN_EPD |