Commit ced050ae authored by Chuanhong Guo's avatar Chuanhong Guo Committed by Felix Fietkau
Browse files

mt76: mt7615: retry if mt7615_mcu_init returns -EAGAIN 



mt7615_load_patch in mt7615/mcu.c sometimes fails with:
mt7622-wmac 18000000.wmac: Failed to get patch semaphore
and returns -EAGAIN. But this error is returned all the way up to
mt7615_init_work with no actual retrial performed, leaving a
broken wireless phy.
Wait a bit and retry for up to 10 times before giving up.

Signed-off-by: default avatarChuanhong Guo <gch981213@gmail.com>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 77d157f2

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

+8 −1
Original line number Diff line number Diff line
@@ -16,8 +16,15 @@ static void mt7615_init_work(struct work_struct *work) 
{

	struct mt7615_dev *dev = container_of(work, struct mt7615_dev,

					      mcu_work);

	int i, ret;



	if (mt7615_mcu_init(dev))

	ret = mt7615_mcu_init(dev);

	for (i = 0; (ret == -EAGAIN) && (i < 10); i++) {

		msleep(200);

		ret = mt7615_mcu_init(dev);

	}



	if (ret)

		return;



	mt7615_mcu_set_eeprom(dev);