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>

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 8c840cad3ac29d540717db15eb6b154c20da98cb..d582cf73098fec9b06595babeaa2036c3ad6992b 100644 (file)
--- 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))