ath9k_hw: make sure PAPRD training is properly done

checking the status of PAPRD_AGC2_POWER(Log(ADC_power) measured after
last gain-change in dB) field suggests whether the PAPRD is completely/properly
done. This is an additional check apart from polling for PAPRD done bit being set.
        Susinder suggests that the ideal power range value should be
0xf0 to 0xfe. With AR9382 we do have the values in this range. to have a
common check for all platforms we take agc2_power should be atleast greater
than 0xe0

Cc: susinder@qca.qualcomm.com
Cc: senthilb@qca.qualcomm.com
Cc: kmuthusa@qca.qualcomm.com
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 6a6fb543983..66d2225b95f 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -157,8 +157,9 @@
 #define ATH9K_HW_RX_HP_QDEPTH   16
 #define ATH9K_HW_RX_LP_QDEPTH   128
 
-#define PAPRD_GAIN_TABLE_ENTRIES    32
-#define PAPRD_TABLE_SZ              24
+#define PAPRD_GAIN_TABLE_ENTRIES        32
+#define PAPRD_TABLE_SZ                  24
+#define PAPRD_IDEAL_AGC2_PWR_RANGE      0xe0
 
 enum ath_hw_txq_subtype {
         ATH_TXQ_AC_BE = 0,