ath9k: Fix build error on ARM

Use mdelay instead of udelay to fix this error:

ERROR: "__bad_udelay" [drivers/net/wireless/ath/ath9k/ath9k_hw.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

Reported-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index fbf43c05713f..11eab9f01fd8 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1316,7 +1316,7 @@ static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
         if (AR_SREV_9300_20_OR_LATER(ah))
                 udelay(50);
         else if (AR_SREV_9100(ah))
-                udelay(10000);
+                mdelay(10);
         else
                 udelay(100);
 
@@ -2051,9 +2051,8 @@ static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
 
         REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
                     AR_RTC_FORCE_WAKE_EN);
-
         if (AR_SREV_9100(ah))
-                udelay(10000);
+                mdelay(10);
         else
                 udelay(50);