ath9k_hw: Add hw cap flag for EDMA for the AR9003 family

AR9003 supports extended DMA (EDMA), this comes with some
bells and whistles on top of the legacy DMA that we are used
to. Mark AR9003 and later chips EDMA capable.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 39dac9797e4..b33aa2d35d6 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2873,6 +2873,9 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
                 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
         }
 
+        if (AR_SREV_9300_20_OR_LATER(ah))
+                pCap->hw_caps |= ATH9K_HW_CAP_EDMA;
+
         return 0;
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 3bc362134dc..d89af6ef8b2 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -165,6 +165,7 @@ enum ath9k_hw_caps {
         ATH9K_HW_CAP_ENHANCEDPM                 = BIT(14),
         ATH9K_HW_CAP_AUTOSLEEP                  = BIT(15),
         ATH9K_HW_CAP_4KB_SPLITTRANS             = BIT(16),
+        ATH9K_HW_CAP_EDMA                       = BIT(17),
 };
 
 enum ath9k_capability_type {