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 (file)
--- 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);
        }
 }