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 regards Vivek -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
