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path: root/drivers/net/wireless/ath/ath9k/hw.c
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-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c27
1 files changed, 21 insertions, 6 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 2a8ed8375ec0..69bbea1184d2 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -791,7 +791,8 @@ static void ath9k_hw_init_pll(struct ath_hw *ah,
refdiv = 5;
} else {
pll2_divint = 0x11;
- pll2_divfrac = 0x26666;
+ pll2_divfrac =
+ AR_SREV_9531(ah) ? 0x26665 : 0x26666;
refdiv = 1;
}
}
@@ -1730,11 +1731,27 @@ fail:
return -EINVAL;
}
+u32 ath9k_hw_get_tsf_offset(struct timespec *last, struct timespec *cur)
+{
+ struct timespec ts;
+ s64 usec;
+
+ if (!cur) {
+ getrawmonotonic(&ts);
+ cur = &ts;
+ }
+
+ usec = cur->tv_sec * 1000000ULL + cur->tv_nsec / 1000;
+ usec -= last->tv_sec * 1000000ULL + last->tv_nsec / 1000;
+
+ return (u32) usec;
+}
+EXPORT_SYMBOL(ath9k_hw_get_tsf_offset);
+
int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
struct ath9k_hw_cal_data *caldata, bool fastcc)
{
struct ath_common *common = ath9k_hw_common(ah);
- struct timespec ts;
u32 saveLedState;
u32 saveDefAntenna;
u32 macStaId1;
@@ -1784,8 +1801,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
/* Save TSF before chip reset, a cold reset clears it */
tsf = ath9k_hw_gettsf64(ah);
- getrawmonotonic(&ts);
- usec = ts.tv_sec * 1000000ULL + ts.tv_nsec / 1000;
+ usec = ktime_to_us(ktime_get_raw());
saveLedState = REG_READ(ah, AR_CFG_LED) &
(AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
@@ -1818,8 +1834,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
}
/* Restore TSF */
- getrawmonotonic(&ts);
- usec = ts.tv_sec * 1000000ULL + ts.tv_nsec / 1000 - usec;
+ usec = ktime_to_us(ktime_get_raw()) - usec;
ath9k_hw_settsf64(ah, tsf + usec);
if (AR_SREV_9280_20_OR_LATER(ah))