• Ming Lei's avatar
    usb: musb: fix dependency on transceiver driver · 25736e0c
    Ming Lei authored
    This patch let glue driver return -EPROBE_DEFER if the transceiver
    is not readly, so we can support defer probe on musb to fix the
    below error on 3.7-rc5 if transceiver drivers are built as module:
    
    [   19.052490] unable to find transceiver of type USB2 PHY
    [   19.072052] HS USB OTG: no transceiver configured
    [   19.076995] musb-hdrc musb-hdrc.0.auto: musb_init_controller failed with status -19
    [   19.089355] musb-hdrc: probe of musb-hdrc.0.auto rejects match -19
    [   19.096771] driver: 'musb-omap2430': driver_bound: bound to device 'musb-omap2430'
    [   19.105194] bus: 'platform': really_probe: bound device musb-omap2430 to driver musb-omap2430
    [   19.174407] bus: 'platform': add driver twl4030_usb
    [   19.179656] bus: 'platform': driver_probe_device: matched device twl4030_usb with driver twl4030_usb
    [   19.202270] bus: 'platform': really_probe: probing driver twl4030_usb with device twl4030_usb
    [   19.214172] twl4030_usb twl4030_usb: HW_CONDITIONS 0xc0/192; link 3
    [   19.239624] musb-omap2430 musb-omap2430: musb core is not yet ready
    [   19.246765] twl4030_usb twl4030_usb: Initialized TWL4030 USB module
    [   19.254516] driver: 'twl4030_usb': driver_bound: bound to device 'twl4030_usb'
    [   19.263580] bus: 'platform': really_probe: bound device twl4030_usb to driver twl4030_usb
    
    Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
    Cc: <stable@vger.kernel.org> v3.8
    Signed-off-by: default avatarMing Lei <ming.lei@canonical.com>
    Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
    25736e0c
da8xx.c 15.7 KB