ath9k: Reset chip on baseband hang

commit a4d86d953b8593791cb29cf2acffd48f9ee6c4f9 upstream.

Resetting hardware helps to recover from baseband
hang/panic for AR9003 based chips.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 1482fa6508334cdd32b979b5a0a22bf8e826082b..846bb4fd48532581c498912a852e43b3a4786e1a 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -633,7 +633,8 @@ void ath9k_tasklet(unsigned long data)
        u32 status = sc->intrstatus;
        u32 rxmask;
 
-       if (status & ATH9K_INT_FATAL) {
+       if ((status & ATH9K_INT_FATAL) ||
+           (status & ATH9K_INT_BB_WATCHDOG)) {
                ath_reset(sc, true);
                return;
        }
@@ -699,6 +700,7 @@ irqreturn_t ath_isr(int irq, void *dev)
 {
 #define SCHED_INTR (                           \
                ATH9K_INT_FATAL |               \
+               ATH9K_INT_BB_WATCHDOG |         \
                ATH9K_INT_RXORN |               \
                ATH9K_INT_RXEOL |               \
                ATH9K_INT_RX |                  \