[U-Boot] [PATCH 7/7] usb: dwc2: Do not mix data toggle for IN and OUT endpoints, check bounds

[Stefan Bruens <stefan.bruens@rwth-aachen.de>]

On Freitag, 22. Januar 2016 02:30:43 CET you wrote:
> USB protocol allows for 16 IN and 16 OUT endpoints (USB 2.0 Spec,
> 8.3.2.2 Endpoint Field). A function may have an EP 1 for both IN and OUT,
> so these two should be kept separate. As EPs are either BULK or INTERRUPT
> (or ISO), it is fine to have one array per direction for all transfer
> types (also see e236519b7365ef75c5da6a5623f0b03d9c00cfae).
> 
> USB device address is 7 bits, so a bus may have more than 16 devices.
> Check the device number, as the DWC2 driver only supports BULK/ISO for
> the first 16 devices.
> 
> Signed-off-by: Stefan Br?ns <stefan.bruens@rwth-aachen.de>
> ---
>  drivers/usb/host/dwc2.c | 29 +++++++++++++++++++----------
>  1 file changed, 19 insertions(+), 10 deletions(-)

This one goes on top of the SPLIT support patches, if anyone is wondering why 
it is labeled Patch 7/7.

Kind regards,

Stefan

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