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mt76: mt7915: detect wrong nss eeprom parameter on dbdc cards

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Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2021-01-21 12:49:30 +01:00
parent fb3e5ce1eb
commit be2bea66d6
1 changed files with 11 additions and 7 deletions
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mt7915/eeprom.c
+11 -7
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@@ -73,7 +73,7 @@ void mt7915_eeprom_parse_band_config(struct mt7915_phy *phy)
static void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev)
{
u8 nss, *eeprom = dev->mt76.eeprom.data;
u8 nss, nss_band, *eeprom = dev->mt76.eeprom.data;
mt7915_eeprom_parse_band_config(&dev->phy);
@@ -82,16 +82,20 @@ static void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev)
if (!nss || nss > 4)
nss = 4;
dev->chainmask = BIT(nss) - 1;
nss_band = nss;
if (dev->dbdc_support) {
nss = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B0,
eeprom[MT_EE_WIFI_CONF + 3]);
if (!nss || nss > 2)
nss = 2;
nss_band = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B0,
eeprom[MT_EE_WIFI_CONF + 3]);
if (!nss_band || nss_band > 2)
nss_band = 2;
if (nss_band >= nss)
nss = 4;
}
dev->mphy.antenna_mask = BIT(nss) - 1;
dev->chainmask = BIT(nss) - 1;
dev->mphy.antenna_mask = BIT(nss_band) - 1;
dev->mphy.chainmask = dev->mphy.antenna_mask;
}