diff mbox

[4/4] ath10k: cache throttle state when device is down

Message ID 1425715380-11200-4-git-send-email-rmanohar@qti.qualcomm.com (mailing list archive)
State Not Applicable
Delegated to: Kalle Valo
Headers show

Commit Message

Rajkumar Manoharan March 7, 2015, 8:03 a.m. UTC 
Allow driver to cache the throttle state when the devie is not
yet started. Configure the cached throttle state while powering
up the device. Since thermal daemon is unaware of the up/down cycle,
it assumes that device is throttled.

Reported-by: Matthias Kaehlcke <mka@google.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/thermal.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/wireless/ath/ath10k/thermal.c b/drivers/net/wireless/ath/ath10k/thermal.c
index 7aef064..3720c86 100644
--- a/drivers/net/wireless/ath/ath10k/thermal.c
+++ b/drivers/net/wireless/ath/ath10k/thermal.c
@@ -52,19 +52,19 @@  ath10k_thermal_set_cur_throttle_state(struct thermal_cooling_device *cdev,
 	struct ath10k *ar = cdev->devdata;
 	int ret = 0;
 
+	if (throttle_state > ATH10K_THERMAL_THROTTLE_MAX) {
+		ath10k_warn(ar, "throttle state %ld is exceeding the limit %d\n",
+			    throttle_state, ATH10K_THERMAL_THROTTLE_MAX);
+		return -EINVAL;
+	}
 	mutex_lock(&ar->conf_mutex);
+	ar->thermal.throttle_state = throttle_state;
+
 	if (ar->state != ATH10K_STATE_ON) {
 		ret = -ENETDOWN;
 		goto out;
 	}
 
-	if (throttle_state > ATH10K_THERMAL_THROTTLE_MAX) {
-		ath10k_warn(ar, "throttle state %ld is exceeding the limit %d\n",
-			    throttle_state, ATH10K_THERMAL_THROTTLE_MAX);
-		ret = -EINVAL;
-		goto out;
-	}
-	ar->thermal.throttle_state = throttle_state;
 	ath10k_thermal_set_throttling(ar);
 out:
 	mutex_unlock(&ar->conf_mutex);