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| author | Herbert Xu <herbert@lithui.me.apana.org.au> | 2017-12-22 20:00:50 +1100 |
|---|---|---|
| committer | Herbert Xu <herbert@lithui.me.apana.org.au> | 2017-12-22 20:00:50 +1100 |
| commit | 45fa9a324d0f5be9140ba2e0db9b8fb8a0b9b7e8 (patch) | |
| tree | a5e7c8428030ec0462b58133d6548ddff3802018 /drivers/usb/core/hub.c | |
| parent | fc8517bf627c9b834f80274a1bc9ecd39b27231b (diff) | |
| parent | 2973633e9f09311e849f975d969737af81a521ff (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Merge the crypto tree to pick up inside-secure fixes.
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 || |