The PA calibration for ar9271 ath9k_hw_9271_pa_cal() can run during
reset or initial calibration, update the PA calibration to account
for that and initialize PA calibration variables for both conditions.
Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/calib.c | 25 ++++++++++++++++++-------
1 files changed, 18 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index 7aa3d1d..551f880 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -813,7 +813,7 @@ static void ath9k_olc_temp_compensation(struct ath_hw *ah)
}
}
-static void ath9k_hw_9271_pa_cal(struct ath_hw *ah)
+static void ath9k_hw_9271_pa_cal(struct ath_hw *ah, bool is_reset)
{
u32 regVal;
unsigned int i;
@@ -889,10 +889,19 @@ static void ath9k_hw_9271_pa_cal(struct ath_hw *ah)
REG_WRITE(ah, 0x7834, regVal);
}
- /* Empirical offset correction */
-#if 0
- REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9271_AN_RF2G6_OFFS, 0x20);
-#endif
+ regVal = (regVal >>20) & 0x7f;
+
+ /* Update PA cal info */
+ if ((!is_reset) && (ah->pacal_info.prev_offset == regVal)) {
+ if (ah->pacal_info.max_skipcount < MAX_PACAL_SKIPCOUNT)
+ ah->pacal_info.max_skipcount =
+ 2 * ah->pacal_info.max_skipcount;
+ ah->pacal_info.skipcount = ah->pacal_info.max_skipcount;
+ } else {
+ ah->pacal_info.max_skipcount = 1;
+ ah->pacal_info.skipcount = 0;
+ ah->pacal_info.prev_offset = regVal;
+ }
regVal = REG_READ(ah, 0x7834);
regVal |= 0x1;
@@ -1043,7 +1052,7 @@ bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
if (longcal) {
/* Do periodic PAOffset Cal */
if (AR_SREV_9271(ah))
- ath9k_hw_9271_pa_cal(ah);
+ ath9k_hw_9271_pa_cal(ah, false);
else if (AR_SREV_9285_11_OR_LATER(ah)) {
if (!ah->pacal_info.skipcount)
ath9k_hw_9285_pa_cal(ah, false);
@@ -1152,7 +1161,9 @@ bool ath9k_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan)
}
/* Do PA Calibration */
- if (AR_SREV_9285_11_OR_LATER(ah))
+ if (AR_SREV_9271(ah))
+ ath9k_hw_9271_pa_cal(ah, true);
+ else if (AR_SREV_9285_11_OR_LATER(ah))
ath9k_hw_9285_pa_cal(ah, true);
/* Do NF Calibration after DC offset and other calibrations */
--
1.6.0.4
--
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