commit 181fb18daaf88a20175b0da70024563b0b7c0666
author Vivek Natarajan <vnatarajan@atheros.com> Thu Jan 27 14:45:08 2011 +0530
committer John W. Linville <linville@tuxdriver.com> Fri Jan 28 15:44:28 2011 -0500
tree 2b3c3d8ff01e37880027d25c1b67579bba68e797
parent b141581923ab4904052174e3b4eb17cc3ce8632c

ath9k: Fix a PLL hang issue observed with AR9485.

When this PLL hang issue is seen, both Rx and Tx fail to work.
The sqsum_dvc needs to be below 2000 for a good chip. During
this issue the sqsum_dvc value is beyond 80000 and only a
full reset can solve this problem.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/main.c

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 23c016a..0663a32 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -230,6 +230,7 @@
 	cancel_work_sync(&sc->paprd_work);
 	cancel_work_sync(&sc->hw_check_work);
 	cancel_delayed_work_sync(&sc->tx_complete_work);
+	cancel_delayed_work_sync(&sc->hw_pll_work);
 
 	ath9k_ps_wakeup(sc);
 
@@ -290,6 +291,7 @@
 		if (sc->sc_flags & SC_OP_BEACONS)
 			ath_beacon_config(sc, NULL);
 		ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
+		ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/2);
 		ath_start_ani(common);
 	}
 
@@ -1263,6 +1265,7 @@
 		cancel_delayed_work_sync(&sc->ath_led_blink_work);
 
 	cancel_delayed_work_sync(&sc->tx_complete_work);
+	cancel_delayed_work_sync(&sc->hw_pll_work);
 	cancel_work_sync(&sc->paprd_work);
 	cancel_work_sync(&sc->hw_check_work);