From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Sat, 28 Dec 2013 04:17:13 +0000 (+0530)
Subject: ath9k: Fix AR9100 chip power-on
X-Git-Tag: v3.14-rc1~94^2~238^2^2~62
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=04575f21d9c8dc3fbf8ad7d7ce3fc8261377def1;p=linux.git

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 3f9cac9231f3..e0e1bdea4cd8 100644
--- 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;