linux-kernel - [RFC][PATCH 0/5 v2] Fixes and workarounds for dwc2 on HiKey board

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Date:   Fri, 16 Dec 2016 21:31:48 -0800
From:   John Stultz <john.stultz@...aro.org>
To:     lkml <linux-kernel@...r.kernel.org>
Cc:     John Stultz <john.stultz@...aro.org>,
        Wei Xu <xuwei5@...ilicon.com>,
        Guodong Xu <guodong.xu@...aro.org>,
        Amit Pundir <amit.pundir@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        John Youn <johnyoun@...opsys.com>,
        Douglas Anderson <dianders@...omium.org>,
        Chen Yu <chenyu56@...wei.com>,
        Vardan Mikayelyan <mvardan@...opsys.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org
Subject: [RFC][PATCH 0/5 v2] Fixes and workarounds for dwc2 on HiKey board

I just wanted to re-send my current queue of patches for dwc2
controller on the HiKey board, as my last patchset ended up
colliding with a number of changes that landed in the 4.10-rc
merge window. 

I've fixed things up and validated these against HiKey. I also
made a small change to one of the patches as suggested by Vardan.

This does exclude my patchset[1] to add extcon support to dwc2,
which John Youn suspects a pending rework of the dwc2 fifo init
logic might make unnecssary (however, no such changes appeared
to have landed in 4.10-rc, so I'm still using that patchset in
my testing).

I'm also out for the holidays after today, and while I suspect
others are likely going to be out as well, I figured I'd send
these out for a chance at review, rather then sit on them for
two weeks. I'll resend after the new year addressing any
feedback I do get though.

Feedback would be greatly appreciated!

thanks
-john

[1] https://lkml.org/lkml/2016/12/6/69

Cc: Wei Xu <xuwei5@...ilicon.com>
Cc: Guodong Xu <guodong.xu@...aro.org>
Cc: Amit Pundir <amit.pundir@...aro.org>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: John Youn <johnyoun@...opsys.com>
Cc: Douglas Anderson <dianders@...omium.org>
Cc: Chen Yu <chenyu56@...wei.com>
Cc: Vardan Mikayelyan <mvardan@...opsys.com>
Cc: Kishon Vijay Abraham I <kishon@...com>
Cc: Felipe Balbi <felipe.balbi@...ux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org

Chen Yu (2):
  usb: dwc2: Force port resume on switching to device mode
  usb: dwc2: Add a quirk to allow speed negotiation for Hisilicon Hi6220

John Stultz (3):
  usb: dwc2: Avoid sleeping while holding hsotg->lock
  usb: dwc2: Workaround case where GOTGCTL state is wrong
  usb: dwc2: Avoid suspending if we're in gadget mode

 drivers/usb/dwc2/core.c   |  6 ++--
 drivers/usb/dwc2/core.h   |  9 +++++-
 drivers/usb/dwc2/gadget.c |  2 +-
 drivers/usb/dwc2/hcd.c    | 79 +++++++++++++++++++++++++++++++++++++++++++++++
 drivers/usb/dwc2/params.c | 19 ++++++++++++
 5 files changed, 110 insertions(+), 5 deletions(-)

-- 
2.7.4