ath9k: wake up the chip for TSF reset
If we are in NETWORK SLEEP state, AR_SLP32_TSF_WRITE_STATUS limit
always exceeds in 'ath9k_hw_reset_tsf', because reading of the
AR_SLP3 register always return with the magic 0xdeadbeef value.
Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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 b9d1a13..9853769 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3842,6 +3842,7 @@
{
int count;
+ ath9k_ps_wakeup(ah->ah_sc);
count = 0;
while (REG_READ(ah, AR_SLP32_MODE) & AR_SLP32_TSF_WRITE_STATUS) {
count++;
@@ -3853,6 +3854,7 @@
udelay(10);
}
REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
+ ath9k_ps_restore(ah->ah_sc);
}
bool ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)