ath9k: Fix baseband watchdog reset

Do a HW reset only for required signatures.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 1fd69de..c19182b 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -448,14 +448,8 @@ void ath9k_tasklet(unsigned long data)
        ath9k_ps_wakeup(sc);
        spin_lock(&sc->sc_pcu_lock);
 
-       if ((status & ATH9K_INT_FATAL) ||
-           (status & ATH9K_INT_BB_WATCHDOG)) {
-
-               if (status & ATH9K_INT_FATAL)
-                       type = RESET_TYPE_FATAL_INT;
-               else
-                       type = RESET_TYPE_BB_WATCHDOG;
-
+       if (status & ATH9K_INT_FATAL) {
+               type = RESET_TYPE_FATAL_INT;
                ath9k_queue_reset(sc, type);
 
                /*
@@ -467,6 +461,23 @@ void ath9k_tasklet(unsigned long data)
                goto out;
        }
 
+       if ((ah->config.hw_hang_checks & HW_BB_WATCHDOG) &&
+           (status & ATH9K_INT_BB_WATCHDOG)) {
+               if (ar9003_hw_bb_watchdog_check(ah)) {
+                       type = RESET_TYPE_BB_WATCHDOG;
+                       ath9k_queue_reset(sc, type);
+
+                       /*
+                        * Increment the ref. counter here so that
+                        * interrupts are enabled in the reset routine.
+                        */
+                       atomic_inc(&ah->intr_ref_cnt);
+                       ath_dbg(common, ANY,
+                               "BB_WATCHDOG: Skipping interrupts\n");
+                       goto out;
+               }
+       }
+
        spin_lock_irqsave(&sc->sc_pm_lock, flags);
        if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
                /*