[PATCH 1/2] wifi: mt76: connac: add MT7991A (0x7991) to is_mt7996()

[Dmitry Gomzyakov <nicerok11@gmail.com>]

From: Dmitry Gomzyakov <nicerok11@gmail.com>

The MT7991A chipset uses PCI device ID 0x7991 (MT7996_DEVICE_ID_2),
but is_mt7996() only checks for 0x7990. This causes MT7991A devices
to use incorrect chip-specific settings, such as:
- MSDU_CNT_V2 instead of MSDU_CNT in TX descriptors
- Wrong WTBL BMC size (32 instead of 64)
- Incorrect prefetch depth for MCU queues

Fixes: 63a4edf1cb74 ("wifi: mt76: mt7996: add macros for pci decive id")
Signed-off-by: Dmitry Gomzyakov <nicerok11@gmail.com>
---
 mt76_connac.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mt76_connac.h b/mt76_connac.h
index 51423c77..db07f3dc 100644
--- a/mt76_connac.h
+++ b/mt76_connac.h
@@ -230,7 +230,8 @@ static inline bool is_mt798x(struct mt76_dev *dev)
 
 static inline bool is_mt7996(struct mt76_dev *dev)
 {
-	return mt76_chip(dev) == 0x7990;
+	u16 chip = mt76_chip(dev);
+	return chip == 0x7990 || chip == 0x7991;
 }
 
 static inline bool is_mt7992(struct mt76_dev *dev)
-- 
2.54.0