I've been carrying a patch out-of-tree since my work on improving the USB device-tree support which is needed to be able to describe USB topologies for musb based controllers.
This patch, which associates the platform controller device with the glue device device-tree node, did not play well with the recent changes which added generic phy support to USB core however. Like the recent dwc2 regression fixed by Arnd after the device-tree #phy-cell changes, the generic phy code in USB core can now also fail indefinitly with -EPROBE_DEFER when the controller uses a legacy USB phy. The second patch addresses this for musb, which handles its own (legacy and generic) phys, but something more may possibly now be needed for other platforms with legacy phys. In the process of debugging this, I stumbled over another issue which caused the dsps legacy phy init two be called twice on every probe and which is fixed by the first patch. Johan Johan Hovold (3): USB: musb: dsps: drop duplicate phy initialisation USB: musb: host: prevent core phy initialisation USB: musb: dsps: propagate device-tree node drivers/usb/musb/musb_dsps.c | 3 +-- drivers/usb/musb/musb_host.c | 1 + 2 files changed, 2 insertions(+), 2 deletions(-) -- 2.17.0
