From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Feb 2015 12:51:12 +0000 (+0530)
Subject: ath9k: Clear TSF2 properly
X-Git-Tag: fixes-v4.0-rc1~150^2~10^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=23ee7c33aa7caae5985a919e597ba2e355d540ea;p=pandora-kernel.git

ath9k: Clear TSF2 properly

Chips in the AR9003 family have a second TSF, which
needs to be cleared when putting the card to
sleep.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_wow.c b/drivers/net/wireless/ath/ath9k/ar9003_wow.c
index cf45b91f0a60..2dc50a0eedc4 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_wow.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_wow.c
@@ -35,6 +35,15 @@ static void ath9k_hw_set_powermode_wow_sleep(struct ath_hw *ah)
 		return;
 	}
 
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+		if (!REG_READ(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL))
+			REG_CLR_BIT(ah, AR_DIRECT_CONNECT, AR_DC_TSF2_ENABLE);
+	} else if (AR_SREV_9485(ah)){
+		if (!(REG_READ(ah, AR_NDP2_TIMER_MODE) &
+		      AR_GEN_TIMERS2_MODE_ENABLE_MASK))
+			REG_CLR_BIT(ah, AR_DIRECT_CONNECT, AR_DC_TSF2_ENABLE);
+	}
+
 	REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_ON_INT);
 }
 
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