[PATCH] usb: gadget: dwc2_udc_otg: set ep's desc during enable/disable

[Neil Armstrong]

Hi,

On 06/01/2022 16:02, Gary Bisson wrote:
> Fastboot support has been broken on platforms using dwc2 controller
> since the gadget gets its max packet size from it.
> This patch is the equivalent of 723fd5668ff which fixed the same issue
> but for the chipidea controller.
> 
> Fixes: 27c9141b111 ("usb: gadget: fastboot: use correct max packet size")
> 
> Signed-off-by: Gary Bisson <gary.bisson at boundarydevices.com>
> ---
>  drivers/usb/gadget/dwc2_udc_otg.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c
> index 2f318144421..fb10884755b 100644
> --- a/drivers/usb/gadget/dwc2_udc_otg.c
> +++ b/drivers/usb/gadget/dwc2_udc_otg.c
> @@ -655,6 +655,7 @@ static int dwc2_ep_enable(struct usb_ep *_ep,
>  		return -ESHUTDOWN;
>  	}
>  
> +	_ep->desc = desc;
>  	ep->stopped = 0;
>  	ep->desc = desc;

Indeed the _ep and ep was confusing when looking code

>  	ep->pio_irqs = 0;
> @@ -695,6 +696,7 @@ static int dwc2_ep_disable(struct usb_ep *_ep)
>  	/* Nuke all pending requests */
>  	nuke(ep, -ESHUTDOWN);
>  
> +	_ep->desc = NULL;
>  	ep->desc = 0;
>  	ep->stopped = 1;
>  
> 

An off-tree patch removed from our Yukawa backlog, thanks !

Reviewed-by: Neil Armstrong <narmstrong at baylibre.com>

Neil