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usb: core: Try generic PHY_MODE_USB_HOST if usb_phy_roothub_set_mode fails 

Some PHYs do not support PHY_MODE_USB_HOST_SS, i.e. USB 3.0 or higher.
Fall back and try the more generic PHY_MODE_USB_HOST if it fails.

Fixes: b97a313483 ("usb: core: comply to PHY framework")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chen-Yu Tsai 2019-03-22 16:51:08 +08:00 committed by Greg Kroah-Hartman
parent 1396929e8a
commit e671765e52
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/core/hcd.c
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@ -2741,6 +2741,9 @@ int usb_add_hcd(struct usb_hcd *hcd,
retval = usb_phy_roothub_set_mode(hcd->phy_roothub,
PHY_MODE_USB_HOST_SS);
if (retval)
retval = usb_phy_roothub_set_mode(hcd->phy_roothub,
PHY_MODE_USB_HOST);
if (retval)
goto err_usb_phy_roothub_power_on;