mt76: mt7615: sdio code must access rate/key regs in preocess context

As usb, sdio relies on mt76 workqueue to configure tx rate or upload
keys to the hw. This is a preliminary patch to add SDIO support to
mt76 driver
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7615/mac.c

@@ -967,7 +967,7 @@ void mt7615_mac_set_rates(struct mt7615_phy *phy, struct mt7615_sta *sta,
 	struct mt7615_rate_desc rd;
 	u32 w5, w27, addr;
 
-	if (mt76_is_usb(&dev->mt76)) {
+	if (!mt76_is_mmio(&dev->mt76)) {
 		mt7615_mac_queue_rate_update(phy, sta, probe_rate, rates);
 		return;
 	}

drivers/net/wireless/mediatek/mt76/mt7615/main.c

@@ -417,10 +417,10 @@ static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	mt76_wcid_key_setup(&dev->mt76, wcid,
 			    cmd == SET_KEY ? key : NULL);
 
-	if (mt76_is_usb(&dev->mt76))
-		err = mt7615_queue_key_update(dev, cmd, msta, key);
-	else
+	if (mt76_is_mmio(&dev->mt76))
 		err = mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
+	else
+		err = mt7615_queue_key_update(dev, cmd, msta, key);
 
 	mt7615_mutex_release(dev);