[PATCH v2] usb: gadget: cdns3: Fix cdns3_ep_config() by setting ep.maxpacket

[Roger Quadros]

On 07/10/2024 15:19, Siddharth Vadapalli wrote:
> The function cdns3_ep_config() calculates the maximum packet size based
> on the Endpoint Type and the Gadget Speed and stores it in the variable
> "max_packet_size". This value is then programmed in the USB Controller
> for the corresponding Endpoint. This may result in a mismatch between
> the maximum packet size programmed in the USB controller and the maximum
> packet size seen by the UDC Core via "maxpacket" member of "struct usb_ep".
> Additionally, since TD_SIZE is calculated in cdns3_ep_run_transfer() on the
> basis of the maximum packet size stored in the "maxpacket" member of
> "struct usb_ep", it may lead to an incorrect value of TD_SIZE when compared
> with what the USB controller actually expects (max_packet_size).
> 
> Fix this.
> 
> Fixes: 7e91f6ccdc84 ("usb: Add Cadence USB3 host and gadget driver")
> Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>

Reviewed-by: Roger Quadros <rogerq at kernel.org>