ath9k_hw: fix the PA predistortion rate mask
The EEPROM PAPRD rate mask fields only contain mask values for actual
rates in the low 25 bits. The upper bits are reserved for tx power
scale values. Add the proper mask definitions and use them before
writing the values to the register.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index 620821e..efb6a02 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -31,6 +31,12 @@
#define AR9300_ANT_16S 25
#define AR9300_FUTURE_MODAL_SZ 6
+#define AR9300_PAPRD_RATE_MASK 0x01ffffff
+#define AR9300_PAPRD_SCALE_1 0x0e000000
+#define AR9300_PAPRD_SCALE_1_S 25
+#define AR9300_PAPRD_SCALE_2 0x70000000
+#define AR9300_PAPRD_SCALE_2_S 28
+
/* Delta from which to start power to pdadc table */
/* This offset is used in both open loop and closed loop power control
* schemes. In open loop power control, it is not really needed, but for
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
index 74cff43..cdca4c3 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
@@ -52,8 +52,8 @@
else
hdr = &eep->modalHeader2G;
- am_mask = le32_to_cpu(hdr->papdRateMaskHt20);
- ht40_mask = le32_to_cpu(hdr->papdRateMaskHt40);
+ am_mask = le32_to_cpu(hdr->papdRateMaskHt20) & AR9300_PAPRD_RATE_MASK;
+ ht40_mask = le32_to_cpu(hdr->papdRateMaskHt40) & AR9300_PAPRD_RATE_MASK;
REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2AM, AR_PHY_PAPRD_AM2AM_MASK, am_mask);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2PM, AR_PHY_PAPRD_AM2PM_MASK, am_mask);