linux-kernel - Re: [PATCH v1 1/1] usb: dwc3: gadget: Revert "set gadgets parent to the right controller"

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Date:   Mon, 4 Oct 2021 22:35:57 +0200
From:   Ferry Toth <fntoth@...il.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Felipe Balbi <balbi@...nel.org>,
        Michael Grzeschik <m.grzeschik@...gutronix.de>
Subject: Re: [PATCH v1 1/1] usb: dwc3: gadget: Revert "set gadgets parent to
 the right controller"

Hi,

Op 04-10-2021 om 16:18 schreef Andy Shevchenko:
> The commit c6e23b89a95d ("usb: dwc3: gadget: set gadgets parent to the right
> controller") changed the device for the UDC and broke the user space scripts
> that instantiate the USB gadget(s) via ConfigFS.

I confirm this regression on Intel Edison since at least 5.15-rc2 while 
in 5.14.0 it was working fine.

This patch resolves the issue as tested on 5.15-rc4.

Tested-by: Ferry Toth<fntoth@...il.com>

> Revert it for now until the better solution will be proposed.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>   drivers/usb/dwc3/gadget.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
> index 8e66a70adae6..13664609ed3c 100644
> --- a/drivers/usb/dwc3/gadget.c
> +++ b/drivers/usb/dwc3/gadget.c
> @@ -4253,7 +4253,7 @@ int dwc3_gadget_init(struct dwc3 *dwc)
>   	}
>   
>   
> -	usb_initialize_gadget(dwc->sysdev, dwc->gadget, dwc_gadget_release);
> +	usb_initialize_gadget(dwc->dev, dwc->gadget, dwc_gadget_release);
>   	dev				= &dwc->gadget->dev;
>   	dev->platform_data		= dwc;
>   	dwc->gadget->ops		= &dwc3_gadget_ops;