From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Wed, 21 Sep 2016 13:31:38 +0200 Subject: [PATCH] usb: dwc3: host: inherit dma configuration from parent dev In-Reply-To: References: <3189648.KnWLgq0lTY@wuerfel> Message-ID: <3596831.dckG5peiyF@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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