ath9k_hw: fix MAC clock for half/quarter rate

Enabling half/quarter rate makes the MAC run at half/quarter clock speed.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index a6bb9c4f8a8..f69c62e36ed 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -99,6 +99,13 @@ static void ath9k_hw_set_clockrate(struct ath_hw *ah)
         if (conf_is_ht40(conf))
                 clockrate *= 2;
 
+        if (ah->curchan) {
+                if (IS_CHAN_HALF_RATE(ah->curchan))
+                        clockrate /= 2;
+                if (IS_CHAN_QUARTER_RATE(ah->curchan))
+                        clockrate /= 4;
+        }
+
         common->clockrate = clockrate;
 }