[PATCH] pmac_cpufreq msleep cleanup/fixes

Uses msleep() instead of schedule_timeout() to guarantee the task delays
as expected.  Two of the changes are reworks of previous msleep() calls
which unnecessarily added a jiffy to the parameter.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc/platforms/pmac_cpufreq.c

@@ -141,7 +141,7 @@ static int __pmac dfs_set_cpu_speed(int low_speed)
 		/* ramping up, set voltage first */
 		pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x05);
 		/* Make sure we sleep for at least 1ms */
-		msleep(1 + jiffies_to_msecs(1));
+		msleep(1);
 	}
 
 	/* set frequency */
@@ -150,7 +150,7 @@ static int __pmac dfs_set_cpu_speed(int low_speed)
 	if (low_speed == 1) {
 		/* ramping down, set voltage last */
 		pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x04);
-		msleep(1 + jiffies_to_msecs(1));
+		msleep(1);
 	}
 
 	return 0;
@@ -167,8 +167,7 @@ static int __pmac gpios_set_cpu_speed(int low_speed)
 	if (low_speed == 0) {
 		pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x05);
 		/* Delay is way too big but it's ok, we schedule */
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ/100);
+		msleep(10);
 	}
 
 	/* Set frequency */
@@ -185,8 +184,7 @@ static int __pmac gpios_set_cpu_speed(int low_speed)
 	if (low_speed == 1) {
 		pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x04);
 		/* Delay is way too big but it's ok, we schedule */
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ/100);
+		msleep(10);
 	}
 
 #ifdef DEBUG_FREQ