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>

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 39dac9797e48ab376ef70d936762d8da5cefa5e5..b33aa2d35d67b8c4f2a61ff8981abe9860d1a456 100644 (file)
--- 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 3bc362134dced69c2e17a3ae6ab0aedfc64cbc92..d89af6ef8b261e704503a7a06cd46c7912271694 100644 (file)
--- 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 {