Commit e671765e authored Mar 22, 2019 by Chen-Yu Tsai Committed by Greg Kroah-Hartman Mar 26, 2019

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: b97a3134 ("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>

parent 1396929e

drivers/usb/core/hcd.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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;

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