diff options
| author | Chuanhong Guo <gch981213@gmail.com> | 2020-09-23 10:23:03 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-12-04 15:46:13 +0300 |
| commit | ced050ae3ab6bef58a02832dff735a1988cf3f2e (patch) | |
| tree | e34fe800754879321a244fc5e79258465ae9e32d | |
| parent | 77d157f2009e2bcef48e0306bacfcced5b0ed887 (diff) | |
| download | linux-ced050ae3ab6bef58a02832dff735a1988cf3f2e.tar.xz | |
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: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c index 06a0f8f7bc89..27fcb1374685 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c @@ -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); |