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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 commitb97a313483("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]>