From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 24 Dec 2013 05:14:24 +0000 (+0530)
Subject: ath9k: Fix baseband watchdog reset
X-Git-Tag: firefly_0821_release~176^2~4570^2~3^2^2~115
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6549a8606d0a6cc45d0984893c859a6161c227b7;p=firefly-linux-kernel-4.4.55.git
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 1fd69de79020..c19182b8dd03 100644
--- 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) {
/*