ath9k_hw: Fix eeprom offset for AR9287 devices (PCI/USB)

AR9287 devices (PCI/USB) use different eeprom start location
to read nvram. New devices might endup with same devid. So use
driver_info to set offset, instead of devid. driver_info is
valid for HTC devices alone which is filled in usb_device_id.
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/eeprom_9287.c

@@ -37,10 +37,10 @@ static bool ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
 	int addr, eep_start_loc;
 	eep_data = (u16 *)eep;
 
-	if (AR9287_HTC_DEVID(ah))
-		eep_start_loc = AR9287_HTC_EEP_START_LOC;
-	else
+	if (!common->driver_info)
 		eep_start_loc = AR9287_EEP_START_LOC;
+	else
+		eep_start_loc = AR9287_HTC_EEP_START_LOC;
 
 	if (!ath9k_hw_use_flash(ah)) {
 		ath_print(common, ATH_DBG_EEPROM,

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

@@ -870,10 +870,6 @@
 	 ((_ah)->hw_version.devid == 0xA704) || \
 	 ((_ah)->hw_version.devid == 0x1200))
 
-#define AR9287_HTC_DEVID(_ah) \
-	(((_ah)->hw_version.devid == 0x7015) || \
-	 ((_ah)->hw_version.devid == 0x1200))
-
 #define AR_RADIO_SREV_MAJOR                   0xf0
 #define AR_RAD5133_SREV_MAJOR                 0xc0
 #define AR_RAD2133_SREV_MAJOR                 0xd0