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mt76: mt7603: fix reading target tx power from eeprom 

For the external PA (TSSI OFF) case, the target power needs to be read
from a different location in EEPROM

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2019-05-31 22:02:17 +02:00
parent 2dcb79cde6
commit b0297b6738
2 changed files with 6 additions and 0 deletions
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2
drivers/net/wireless/mediatek/mt76/mt7603/eeprom.h
View File

@ -69,6 +69,8 @@ enum mt7603_eeprom_field {
MT_EE_CP_FT_VERSION = 0x0f0,
MT_EE_TX_POWER_TSSI_OFF = 0x0f2,
MT_EE_XTAL_FREQ_OFFSET = 0x0f4,
MT_EE_XTAL_TRIM_2_COMP = 0x0f5,
MT_EE_XTAL_TRIM_3_COMP = 0x0f6,

4
drivers/net/wireless/mediatek/mt76/mt7603/init.c
View File

@ -465,9 +465,13 @@ mt7603_init_txpower(struct mt7603_dev *dev,
u8 *eeprom = (u8 *)dev->mt76.eeprom.data;
int target_power = eeprom[MT_EE_TX_POWER_0_START_2G + 2] & ~BIT(7);
u8 *rate_power = &eeprom[MT_EE_TX_POWER_CCK];
bool ext_pa = eeprom[MT_EE_NIC_CONF_0 + 1] & BIT(1);
int max_offset, cur_offset;
int i;
if (ext_pa && is_mt7603(dev))
target_power = eeprom[MT_EE_TX_POWER_TSSI_OFF] & ~BIT(7);
if (target_power & BIT(6))
target_power = -(target_power & GENMASK(5, 0));