From: Sujith <Sujith.Manoharan@atheros.com>
Date: Fri, 18 Sep 2009 09:34:27 +0000 (+0530)
Subject: ath9k: Fix RTC reset for AR5416
X-Git-Tag: v3.12-rc1~12159^2~865^2~58
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4921be8058f1c8854e501305b96196856fe7f830;p=kernel%2Fkernel-generic.git

ath9k: Fix RTC reset for AR5416

For AR5416 chipsets, clearing RTC_RESET_EN when setting
the chip to SLEEP mode results in high power consumption.
This patch fixes this issue by not clearing it for AR5416.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.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 1e0f5bd..0a3de3f 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2851,8 +2851,9 @@ static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
 		if (!AR_SREV_9100(ah))
 			REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
 
-		REG_CLR_BIT(ah, (AR_RTC_RESET),
-			    AR_RTC_RESET_EN);
+		if(!AR_SREV_5416(ah))
+			REG_CLR_BIT(ah, (AR_RTC_RESET),
+				    AR_RTC_RESET_EN);
 	}
 }