linux-kernel - Re: [PATCH v5 0/6] inherit dma configuration from parent dev

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Date:   Thu, 5 Jan 2017 17:21:09 +0200
From:   Roger Quadros <rogerq@...com>
To:     Sriram Dash <sriram.dash@....com>, <linux-kernel@...r.kernel.org>,
        <linux-usb@...r.kernel.org>, <gregkh@...uxfoundation.org>,
        <felipe.balbi@...ux.intel.com>,
        Mathias Nyman <mathias.nyman@...ux.intel.com>
CC:     <mathias.nyman@...el.com>, <suresh.gupta@....com>,
        <stern@...land.harvard.edu>, <pku.leo@...il.com>
Subject: Re: [PATCH v5 0/6] inherit dma configuration from parent dev

Hi,

On 17/11/16 13:43, Sriram Dash wrote:
> For xhci-hcd platform device, all the DMA parameters are not
> configured properly, notably dma ops for dwc3 devices.
> 
> The idea here is that you pass in the parent of_node along
> with the child device pointer, so it would behave exactly
> like the parent already does. The difference is that it also
> handles all the other attributes besides the mask.
> 
> Arnd Bergmann (6):
>   usb: separate out sysdev pointer from usb_bus
>   usb: chipidea: use bus->sysdev for DMA configuration
>   usb: ehci: fsl: use bus->sysdev for DMA configuration
>   usb: xhci: use bus->sysdev for DMA configuration
>   usb: dwc3: use bus->sysdev for DMA configuration
>   usb: dwc3: Do not set dma coherent mask

Only the dwc3 patches have been picked up for v4.10 and the rest are still missing.
Any plans to pick them in the rc cycle?

DMA configuration is still broken for XHCI on v4.10 and -next.

cheers,
-roger

> 
>  drivers/usb/chipidea/core.c    |  3 ---
>  drivers/usb/chipidea/host.c    |  3 ++-
>  drivers/usb/chipidea/udc.c     | 10 +++++----
>  drivers/usb/core/buffer.c      | 12 +++++------
>  drivers/usb/core/hcd.c         | 48 +++++++++++++++++++++++++-----------------
>  drivers/usb/core/usb.c         | 18 ++++++++--------
>  drivers/usb/dwc3/core.c        | 27 ++++++++++++------------
>  drivers/usb/dwc3/core.h        |  3 +++
>  drivers/usb/dwc3/dwc3-exynos.c | 10 ---------
>  drivers/usb/dwc3/dwc3-pci.c    | 10 +++++++++
>  drivers/usb/dwc3/dwc3-st.c     |  1 -
>  drivers/usb/dwc3/ep0.c         |  8 +++----
>  drivers/usb/dwc3/gadget.c      | 33 +++++++++++++++--------------
>  drivers/usb/dwc3/host.c        | 16 ++++++--------
>  drivers/usb/host/ehci-fsl.c    |  4 ++--
>  drivers/usb/host/xhci-mem.c    | 12 +++++------
>  drivers/usb/host/xhci-plat.c   | 33 +++++++++++++++++++++++------
>  drivers/usb/host/xhci.c        | 15 +++++++++----
>  include/linux/usb.h            |  1 +
>  include/linux/usb/hcd.h        |  3 +++
>  20 files changed, 155 insertions(+), 115 deletions(-)
>