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 <[email protected]> wrote: > > From: Arnd Bergmann <[email protected]> > > > > 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 <[email protected]> > > Signed-off-by: Sriram Dash <[email protected]> > > Tested-by: Baolin Wang <[email protected]> > > Tested-by: Vivek Gautam <[email protected]> > > Tested-by: Alexander Sverdlin <[email protected]> > > Signed-off-by: Mathias Nyman <[email protected]> > > --- > > 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
