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Date: Thu, 9 Feb 2017 09:45:07 +0800 From: Peter Chen <hzpeterchen@...il.com> To: Vivek Gautam <vivek.gautam@...eaurora.org> Cc: Peter Chen <peter.chen@....com>, Greg KH <gregkh@...uxfoundation.org>, Alan Stern <stern@...land.harvard.edu>, Ulf Hansson <ulf.hansson@...aro.org>, broonie@...nel.org, sre@...nel.org, robh+dt <robh+dt@...nel.org>, shawnguo@...nel.org, rjw@...ysocki.net, dbaryshkov@...il.com, Heiko Stübner <heiko@...ech.de>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, p.zabel@...gutronix.de, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Linux USB Mailing List <linux-usb@...r.kernel.org>, Arnd Bergmann <arnd@...db.de>, s.hauer@...gutronix.de, mail@...iej.szmigiero.name, troy.kisky@...ndarydevices.com, festevam@...il.com, oscar@...andei.net, Stephen Boyd <stephen.boyd@...aro.org>, linux-pm@...r.kernel.org, stillcompiling@...il.com, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, mka@...omium.org, vaibhav.hiremath@...aro.org, gary.bisson@...ndarydevices.com, Hans Verkuil <hverkuil@...all.nl>, krzk@...nel.org, Sriram Dash <sriram.dash@....com>, Mathias Nyman <mathias.nyman@...ux.intel.com> Subject: Re: [PATCH v12 6/9] usb: xhci: use bus->sysdev for DMA configuration On Wed, Feb 08, 2017 at 05:27:31PM +0530, Vivek Gautam wrote: > Hi, > > > On Mon, Feb 6, 2017 at 2:43 PM, Peter Chen <peter.chen@....com> wrote: > > From: Arnd Bergmann <arnd@...db.de> > > > > For xhci-hcd platform device, all the DMA parameters are not > > configured properly, notably dma ops for dwc3 devices. So, set > > the dma for xhci from sysdev. sysdev is pointing to device that > > is known to the system firmware or hardware. > > > > Signed-off-by: Arnd Bergmann <arnd@...db.de> > > Signed-off-by: Sriram Dash <sriram.dash@....com> > > Tested-by: Baolin Wang <baolin.wang@...aro.org> > > Tested-by: Vivek Gautam <vivek.gautam@...eaurora.org> > > Tested-by: Alexander Sverdlin <alexander.sverdlin@...ia.com> > > Signed-off-by: Mathias Nyman <mathias.nyman@...ux.intel.com> > > --- > > This patch doesn't work for me anymore on db820c target [1]. > While the same kernel with reverts of patches [2] [3] and an older > patch [4] by Grygorii Strashko works [5]. > > [1] https://github.com/vivekgautam1/linux/tree/linux-v4.10-rc7-usb-db820c-nonworking > [2] 8c9f2de459c7 usb: dwc3: Do not set dma coherent mask > [3] d64ff406e51e usb: dwc3: use bus->sysdev for DMA configuration > [4] https://lkml.org/lkml/2016/4/25/813 > [5] https://github.com/vivekgautam1/linux/tree/linux-v4.10-rc7-usb-db820c > > The [2] and [3] have already at mainline, you may talk with Felipe about it. -- Best Regards, Peter Chen
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