ath9k_hw: use a callback for frequency change

This avoids a branch on every channel change.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 9 insertions, 10 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index d4dc1cbe00aa..f2b2f45d3a78 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -951,8 +951,11 @@ int ath9k_hw_init(struct ath_hw *ah)
         ath9k_hw_init_cal_settings(ah);
 
         ah->ani_function = ATH9K_ANI_ALL;
-        if (AR_SREV_9280_10_OR_LATER(ah))
+        if (AR_SREV_9280_10_OR_LATER(ah)) {
                 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
+                ah->ath9k_hw_rf_set_freq = &ath9k_hw_ar9280_set_channel;
+        } else
+                ah->ath9k_hw_rf_set_freq = &ath9k_hw_set_channel;
 
         ath9k_hw_init_mode_regs(ah);
 
@@ -1889,10 +1892,7 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah,
 
         ath9k_hw_set_regs(ah, chan);
 
-        if (AR_SREV_9280_10_OR_LATER(ah))
-                r = ath9k_hw_ar9280_set_channel(ah, chan);
-        else
-                r = ath9k_hw_set_channel(ah, chan);
+        r = ah->ath9k_hw_rf_set_freq(ah, chan);
         if (r) {
                 ath_print(common, ATH_DBG_FATAL,
                           "Failed to set channel\n");
@@ -2534,10 +2534,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
         REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
 
-        if (AR_SREV_9280_10_OR_LATER(ah))
-                r = ath9k_hw_ar9280_set_channel(ah, chan);
-        else
-                r = ath9k_hw_set_channel(ah, chan);
+        r = ah->ath9k_hw_rf_set_freq(ah, chan);
         if (r)
                 return r;
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 7f2b5d21f2f1..dcf1295f4eb4 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -548,7 +548,9 @@ struct ath_hw {
                 DONT_USE_32KHZ,
         } enable_32kHz_clock;
 
-        /* RF */
+        /* Callback for radio frequency change */
+        int (*ath9k_hw_rf_set_freq)(struct ath_hw *ah, struct ath9k_channel *chan);
+        /* Used to program the radio on non single-chip devices */
         u32 *analogBank0Data;
         u32 *analogBank1Data;
         u32 *analogBank2Data;