ath9k: Fix AR9100 chip power-on

AR9100 requires a larger delay after waking up
the RTC.

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/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 3f9cac9..e0e1bde 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2012,7 +2012,11 @@ static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
 
        REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
                    AR_RTC_FORCE_WAKE_EN);
-       udelay(50);
+
+       if (AR_SREV_9100(ah))
+               udelay(10000);
+       else
+               udelay(50);
 
        for (i = POWER_UP_TIME / 50; i > 0; i--) {
                val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;