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-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 58f3d4210338..b75b5dca4e29 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2022,6 +2022,22 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
}
+ if (AR_SREV_9485(ah)) {
+ ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
+ /*
+ * enable the diversity-combining algorithm only when
+ * both enable_lna_div and enable_fast_div are set
+ * Table for Diversity
+ * ant_div_alt_lnaconf bit 0-1
+ * ant_div_main_lnaconf bit 2-3
+ * ant_div_alt_gaintb bit 4
+ * ant_div_main_gaintb bit 5
+ * enable_ant_div_lnadiv bit 6
+ * enable_ant_fast_div bit 7
+ */
+ if ((ant_div_ctl1 >> 0x6) == 0x3)
+ pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
+ }
if (AR_SREV_9485_10(ah)) {
pCap->pcie_lcr_extsync_en = true;