ath5k: Tweak phy activate to rx start delay based on bwmode

 * Tweak phy activation -> rx delay for different bwmodes

 Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 4 deletions

diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 1b6fcf9e097b..8790f0ab1983 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -3356,8 +3356,6 @@ int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
         /*
          * On 5211+ read activation -> rx delay
          * and use it.
-         *
-         * TODO: Half/quarter rate support
          */
         if (ah->ah_version != AR5K_AR5210) {
                 u32 delay;
@@ -3365,8 +3363,13 @@ int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
                         AR5K_PHY_RX_DELAY_M;
                 delay = (channel->hw_value & CHANNEL_CCK) ?
                         ((delay << 2) / 22) : (delay / 10);
-
-                udelay(100 + (2 * delay));
+                if (ah->ah_bwmode == AR5K_BWMODE_10MHZ)
+                        delay = delay << 1;
+                if (ah->ah_bwmode == AR5K_BWMODE_5MHZ)
+                        delay = delay << 2;
+                /* XXX: /2 on turbo ? Let's be safe
+                 * for now */
+                udelay(100 + delay);
         } else {
                 mdelay(1);
         }