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usb: ehci-platform: support no relinquishing port quirk

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Add a quirk to cancel relinquishing port from ehci to
abnormal ohci when HS device is not ready connected.

To support this function, the no-relinquish-port property
must be specified in ehci node of dt.

Change-Id: Ief0b24cf9e58dde28f386ea67fe8936e8fd74f2d
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
This commit is contained in:
Frank Wang
2016-10-11 15:27:44 +08:00
parent f27d1ca8e3
commit 0fd1853df0
1 changed files with 4 additions and 0 deletions
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4
drivers/usb/host/ehci-platform.c
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@@ -202,6 +202,10 @@ static int ehci_platform_probe(struct platform_device *dev)
"has-transaction-translator"))
hcd->has_tt = 1;
if (of_property_read_bool(dev->dev.of_node,
"no-relinquish-port"))
ehci_platform_hc_driver.relinquish_port = NULL;
priv->num_phys = of_count_phandle_with_args(dev->dev.of_node,
"phys", "#phy-cells");