wifi: mt76: mt7996: support mt7992 eeprom loading

Add the default eeprom and 0x7992 check to mt7996_check_eeprom().
This is a preliminary patch for mt7992 chipsets support.
Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7996/eeprom.c

@@ -14,7 +14,9 @@ static int mt7996_check_eeprom(struct mt7996_dev *dev)
 
 	switch (val) {
 	case 0x7990:
-		return 0;
+		return is_mt7996(&dev->mt76) ? 0 : -EINVAL;
+	case 0x7992:
+		return is_mt7992(&dev->mt76) ? 0 : -EINVAL;
 	default:
 		return -EINVAL;
 	}
@@ -22,8 +24,14 @@ static int mt7996_check_eeprom(struct mt7996_dev *dev)
 
 static char *mt7996_eeprom_name(struct mt7996_dev *dev)
 {
-	/* reserve for future variants */
-	return MT7996_EEPROM_DEFAULT;
+	switch (mt76_chip(&dev->mt76)) {
+	case 0x7990:
+		return MT7996_EEPROM_DEFAULT;
+	case 0x7992:
+		return MT7992_EEPROM_DEFAULT;
+	default:
+		return MT7996_EEPROM_DEFAULT;
+	}
 }
 
 static int

drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h

@@ -39,6 +39,7 @@
 #define MT7992_ROM_PATCH		"mediatek/mt7996/mt7992_rom_patch.bin"
 
 #define MT7996_EEPROM_DEFAULT		"mediatek/mt7996/mt7996_eeprom.bin"
+#define MT7992_EEPROM_DEFAULT		"mediatek/mt7996/mt7992_eeprom.bin"
 #define MT7996_EEPROM_SIZE		7680
 #define MT7996_EEPROM_BLOCK_SIZE	16
 #define MT7996_TOKEN_SIZE		16384