ath9k_hw: use cold instead of warm reset on AR9280

Cold reset is more reliable for getting the hardware out of some specific
stuck states.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 8c840cad3ac2..d582cf73098f 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1386,10 +1386,16 @@ static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
                                 struct ath9k_channel *chan)
 {
-        if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
-                if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
-                        return false;
-        } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
+        int reset_type = ATH9K_RESET_WARM;
+
+        if (AR_SREV_9280(ah)) {
+                if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
+                        reset_type = ATH9K_RESET_POWER_ON;
+                else
+                        reset_type = ATH9K_RESET_COLD;
+        }
+
+        if (!ath9k_hw_set_reset_reg(ah, reset_type))
                 return false;
 
         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))