Re: [PATCH] usb: dwc3: host: inherit dma configuration from parent dev

Arnd Bergmann
2016-09-21T11:32:39Z

On Wednesday, September 21, 2016 11:06:47 AM CEST Sriram Dash wrote:
>
> Hello Arnd,
>
> We tried this patch on NXP platforms (ls2085 and ls1043) which use dwc3
> controller without any glue layer. On first go, this did not work. But after
> minimal reworks mention snippet below, we are able to verify that the USB
> was working OK.
>
> drivers/usb/host/xhci-mem.c | 12 ++++++------
> drivers/usb/host/xhci.c | 20 ++++++++++----------
>
> - struct device *dev = xhci_to_hcd(xhci)->self.controller;
> + struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
>
> We believe the patch needs little modification to work or there might be chances
> we may have missed something. Any idea?

I had not tried the patch, it was just sent for clarification what I
meant, so I'm glad you got it working with just minimal changes.

Unfortunately, I can't tell from your lines above what exactly you
changed, can you send that again as a proper patch?

I think I also had some minimal changes that I did myself in order
to fix a build regression I introduced.

Arnd