ath9k_hw: Find chansel of AR_PHY_65NM_CH0_SYNTH7 for AR9485

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ar9003_phy.c

@@ -75,7 +75,10 @@ static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
 	freq = centers.synth_center;
 
 	if (freq < 4800) {     /* 2 GHz, fractional mode */
-		channelSel = CHANSEL_2G(freq);
+		if (AR_SREV_9485(ah))
+			channelSel = CHANSEL_2G_9485(freq);
+		else
+			channelSel = CHANSEL_2G(freq);
 		/* Set to 2G mode */
 		bMode = 1;
 	} else {

drivers/net/wireless/ath/ath9k/phy.h

@@ -19,6 +19,7 @@
 
 #define CHANSEL_DIV		15
 #define CHANSEL_2G(_freq)	(((_freq) * 0x10000) / CHANSEL_DIV)
+#define CHANSEL_2G_9485(_freq)	((((_freq) * 0x10000) - 215) / CHANSEL_DIV)
 #define CHANSEL_5G(_freq)	(((_freq) * 0x8000) / CHANSEL_DIV)
 
 #define AR_PHY_BASE     0x9800