commit fdbc7b0a262e24a3ee00f1f9acb5a97309a173d5
author Gertjan van Wingerde <gwingerde@gmail.com> Sat Apr 30 17:15:37 2011 +0200
committer John W. Linville <linville@tuxdriver.com> Mon May 02 14:49:18 2011 -0400
tree ac39d2ae6aa424739165122fcea64ee9f213d100
parent 9328fdac499b969ec57a195845f168e7c5168ccd

rt2x00: Introduce capability flag for Bluetooth co-existence.

Use flag instead of re-reading the eeprom every time.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800lib.c

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 71c16c6..6ed646a 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -1640,7 +1640,6 @@
 					 struct channel_info *info)
 {
 	u8 rfcsr;
-	u16 eeprom;
 
 	rt2800_rfcsr_write(rt2x00dev, 8, rf->rf1);
 	rt2800_rfcsr_write(rt2x00dev, 9, rf->rf3);
@@ -1670,11 +1669,10 @@
 		rt2x00_set_field8(&rfcsr, RFCSR17_CODE, rt2x00dev->freq_offset);
 	rt2800_rfcsr_write(rt2x00dev, 17, rfcsr);
 
-	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom);
 	if (rf->channel <= 14) {
 		int idx = rf->channel-1;
 
-		if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_BT_COEXIST)) {
+		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
 			if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390F)) {
 				/* r55/r59 value array of channel 1~14 */
 				static const char r55_bt_rev[] = {0x83, 0x83,
@@ -2917,8 +2915,7 @@
 		ant = (div_mode == 3) ? 1 : 0;
 
 		/* check if this is a Bluetooth combo card */
-		rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom);
-		if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_BT_COEXIST)) {
+		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
 			u32 reg;
 
 			rt2800_register_read(rt2x00dev, GPIO_CTRL_CFG, &reg);
@@ -3741,6 +3738,12 @@
 		__set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags);
 
 	/*
+	 * Detect if this device has Bluetooth co-existence.
+	 */
+	if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_BT_COEXIST))
+		__set_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags);
+
+	/*
 	 * Read frequency offset and RF programming sequence.
 	 */
 	rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);