diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-11 08:50:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-11 08:50:05 +0100 |
| commit | 73cf7e111ed69d8e1b59a3ae41b14bc77215e9ee (patch) | |
| tree | 02cd3308d328bce9cf97bf2c1c9d5e932103ebfe /drivers/usb/core/hub.c | |
| parent | 328257099077e8affd438c179d8a938948de2e7f (diff) | |
| parent | 50c4c4e268a2d7a3e58ebb698ac74da0de40ae36 (diff) | |
Merge 4.15-rc3 into driver-core-next
We want the fixes and changes in here for testing.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 7ccdd3d4db84..cf7bbcb9a63c 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -4948,6 +4948,15 @@ loop: usb_put_dev(udev); if ((status == -ENOTCONN) || (status == -ENOTSUPP)) break; + + /* When halfway through our retry count, power-cycle the port */ + if (i == (SET_CONFIG_TRIES / 2) - 1) { + dev_info(&port_dev->dev, "attempt power cycle\n"); + usb_hub_set_port_power(hdev, hub, port1, false); + msleep(2 * hub_power_on_good_delay(hub)); + usb_hub_set_port_power(hdev, hub, port1, true); + msleep(hub_power_on_good_delay(hub)); + } } if (hub->hdev->parent || !hcd->driver->port_handed_over || |