Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1576497

Re: [PATCH v12 6/9] usb: xhci: use bus->sysdev for DMA configuration

Show all headers | View raw

Hi,


On Mon, Feb 6, 2017 at 2:43 PM, Peter Chen <peter.chen@nxp.com> wrote:
> From: Arnd Bergmann <arnd@arndb.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@arndb.de>
> Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
> Tested-by: Baolin Wang <baolin.wang@linaro.org>
> Tested-by: Vivek Gautam <vivek.gautam@codeaurora.org>
> Tested-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
> Signed-off-by: Mathias Nyman <mathias.nyman@linux.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


regards
Vivek

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

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Re: [PATCH v12 6/9] usb: xhci: use bus->sysdev for DMA configuration Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-02-08 13:20 +0100
  Re: [PATCH v12 6/9] usb: xhci: use bus->sysdev for DMA configuration Peter Chen <hzpeterchen@gmail.com> - 2017-02-09 05:10 +0100

csiph-web