While only the first PHY supports mode switching, the remaining PHYs
work in USB host mode. They should support set_mode with mode=USB_HOST
instead of failing. This is especially needed now that the USB core does
set_mode for all USB ports, which was added in commit b97a313483 ("usb:
core: comply to PHY framework").
Make set_mode with mode=USB_HOST a no-op instead of failing for the
non-OTG USB PHYs.
Fixes: 6ba43c2919 ("phy-sun4i-usb: Add support for phy_set_mode")
Signed-off-by: Chen-Yu Tsai <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>