[PATCH v3 4/9] mt76: mt7921: disable runtime pm for usb

[Lorenzo Bianconi]

Runtime-pm is not currently supported by usb driver

Tested-by: Sean Wang <sean.wang at mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c |  6 ++++++
 drivers/net/wireless/mediatek/mt76/mt7921/init.c    | 10 ++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
index 32004b55a360..bce76417f95d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
@@ -267,6 +267,9 @@ mt7921_pm_set(void *data, u64 val)
 	struct mt7921_dev *dev = data;
 	struct mt76_connac_pm *pm = &dev->pm;
 
+	if (mt76_is_usb(&dev->mt76))
+		return -EOPNOTSUPP;
+
 	mutex_lock(&dev->mt76.mutex);
 
 	if (val == pm->enable_user)
@@ -311,6 +314,9 @@ mt7921_deep_sleep_set(void *data, u64 val)
 	bool monitor = !!(dev->mphy.hw->conf.flags & IEEE80211_CONF_MONITOR);
 	bool enable = !!val;
 
+	if (mt76_is_usb(&dev->mt76))
+		return -EOPNOTSUPP;
+
 	mt7921_mutex_acquire(dev);
 	if (pm->ds_enable_user == enable)
 		goto out;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index fa6af85bba7b..54f51e7b48a0 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -226,10 +226,12 @@ int mt7921_register_device(struct mt7921_dev *dev)
 	dev->pm.idle_timeout = MT7921_PM_TIMEOUT;
 	dev->pm.stats.last_wake_event = jiffies;
 	dev->pm.stats.last_doze_event = jiffies;
-	dev->pm.enable_user = true;
-	dev->pm.enable = true;
-	dev->pm.ds_enable_user = true;
-	dev->pm.ds_enable = true;
+	if (!mt76_is_usb(&dev->mt76)) {
+		dev->pm.enable_user = true;
+		dev->pm.enable = true;
+		dev->pm.ds_enable_user = true;
+		dev->pm.ds_enable = true;
+	}
 
 	if (mt76_is_sdio(&dev->mt76))
 		hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
-- 
2.35.1