[PATCH 2/2] Thermal: Introduce THERMAL_TREND_RAISE/DROP_FULL support for step_wise governor

[Zhang Rui <rui.zhang@intel.com>]

>From fcc7e0a36388f468c25526290e2fb2beebaae99c Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Mon, 19 Nov 2012 16:10:20 +0800
Subject: [PATCH 2/2] Introduce THERMAL_TREND_RAISE/DROP_FULL support for
 step_wise governor

step_wise governor should set the device cooling state to
upper/lower limit directly when THERMAL_TREND_RAISE/DROP_FULL.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/step_wise.c |   19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/step_wise.c b/drivers/thermal/step_wise.c
index 1242cff..6273f7d 100644
--- a/drivers/thermal/step_wise.c
+++ b/drivers/thermal/step_wise.c
@@ -35,6 +35,10 @@
  *       state for this trip point
  *    b. if the trend is THERMAL_TREND_DROPPING, use lower cooling
  *       state for this trip point
+ *    c. if the trend is THERMAL_TREND_RAISE_FULL, use upper limit
+ *       for this trip point
+ *    d. if the trend is THERMAL_TREND_DROP_FULL, use lower limit
+ *       for this trip point
  */
 static unsigned long get_target_state(struct thermal_instance *instance,
 					enum thermal_trend trend)
@@ -44,12 +48,23 @@ static unsigned long get_target_state(struct thermal_instance *instance,
 
 	cdev->ops->get_cur_state(cdev, &cur_state);
 
-	if (trend == THERMAL_TREND_RAISING) {
+	switch (trend) {
+	case THERMAL_TREND_RAISING:
 		cur_state = cur_state < instance->upper ?
 			    (cur_state + 1) : instance->upper;
-	} else if (trend == THERMAL_TREND_DROPPING) {
+		break;
+	case THERMAL_TREND_DROPPING:
 		cur_state = cur_state > instance->lower ?
 			    (cur_state - 1) : instance->lower;
+		break;
+	case THERMAL_TREND_RAISE_FULL:
+		cur_state = instance->upper;
+		break;
+	case THERMAL_TREND_DROP_FULL:
+		cur_state = instance->lower;
+		break;
+	default:
+		break;
 	}
 
 	return cur_state;
-- 
1.7.9.5