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>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 71c16c618c4d145bb317f20729c5b9b94abae661..6ed646a02d490527bccebdaf06d9997887b36eb3 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -1640,7 +1640,6 @@ static void rt2800_config_channel_rf53xx(struct rt2x00_dev *rt2x00dev,
                                         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 @@ static void rt2800_config_channel_rf53xx(struct rt2x00_dev *rt2x00dev,
                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 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
                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);
@@ -3740,6 +3737,12 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
        if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_HW_RADIO))
                __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.
         */

diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index acf561f7cde3ee6bcab213d32ce96b6a0cede233..86e141000156ce72220bcf5f98ae3ded263fef3e 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -697,6 +697,7 @@ enum rt2x00_capability_flags {
        CAPABILITY_EXTERNAL_LNA_A,
        CAPABILITY_EXTERNAL_LNA_BG,
        CAPABILITY_DOUBLE_ANTENNA,
+       CAPABILITY_BT_COEXIST,
 };
 
 /*