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usb: host: tegra: Fix enumeration after lp0

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Fix enumeration when a device is plugged while the host is in lp0 state.

Change-Id: Idb491f347172daac8a5603ed098b422b15cc534e
Signed-off-by: Benoit Goby <benoit@android.com>
This commit is contained in:
Benoit Goby
2011-01-04 18:59:42 -08:00
parent f2e67ec3c3
commit 7a2bd4d7ca
1 changed files with 5 additions and 1 deletions
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6
drivers/usb/host/ehci-tegra.c
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@@ -259,8 +259,12 @@ static int tegra_usb_resume(struct usb_hcd *hcd)
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
tegra_ehci_power_up(ehci_to_hcd(tegra->ehci));
if (!context->valid)
if (!context->valid) {
/* Wait for the phy to detect new devices
* before we restart the controller */
msleep(10);
goto restart;
}
/* Restore register context */
writel(TEGRA_USB_USBMODE_HOST, &hw->reserved[19]);