In the older USB controllers like for example in ChipIdea controller used by the Tegra 2 the "USBADRA: Device Address Advance" bitflag does not exist, so the new device address set during SET_ADDRESS can't be deferred by hardware, which causes the host to not recognize the device and give an error.
Instead store it until ep completes to apply the change into the hw register as Linux kernel does. This should fix regression on old and and be compatible with newer controllers.
Fixes usb peripheral on Tegra 2 devices.
--- Changes from v1: - added reference link to linux patch which inspired this change ---
Ion Agorria (1): usb: ci_udc: don't use "advance" feature when setting address
drivers/usb/gadget/ci_udc.c | 24 +++++++++++++++++++++++- drivers/usb/gadget/ci_udc.h | 1 + 2 files changed, 24 insertions(+), 1 deletion(-)