Russell King - ARM Linux writes: > On Mon, Sep 14, 2015 at 07:33:09AM -0700, Eric Anholt wrote: >> So, while FIQ isn't used in upstream, I think it's worthwhile to merge. >> It is another step to bringing the downstream developers into the fold. > > I want to see the code _first_. Until then, I'm sorry, this patch can't > go in. If you just want to see "Yes, GPL-compatible code using this is available", then that is: https://github.com/raspberrypi/linux/blob/rpi-4.1.y/drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S https://github.com/raspberrypi/linux/blob/rpi-4.1.y/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c If not, I'm curious what exactly is the reason the patch can't go in.