linux-kernel - [PATCH v6 0/8] HiKey960 USB support

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Date:   Thu, 28 Nov 2019 05:09:53 +0000
From:   John Stultz <john.stultz@...aro.org>
To:     lkml <linux-kernel@...r.kernel.org>
Cc:     John Stultz <john.stultz@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        ShuFan Lee <shufan_lee@...htek.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Yu Chen <chenyu56@...wei.com>, Felipe Balbi <balbi@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Jun Li <lijun.kernel@...il.com>,
        Valentin Schneider <valentin.schneider@....com>,
        Jack Pham <jackp@...eaurora.org>, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: [PATCH v6 0/8] HiKey960 USB support

Just another round here trying to push forward a patch series
submitted originally by Yu Chen to get HiKey960 dev-board's USB
functionality working.

The full patchset (including dts changes not submitted here) can
be found here:
https://git.linaro.org/people/john.stultz/android-dev.git/log/?id=950276ae1baab3a22836d1f89aeadbb08adf41e0


NOTE: I unfortunately don't have any deep knowledge of the
hardware other then the previously submitted code  and what I
can intuit from testing. I tried to document the previously
undocumented bindings, fixed up a few minor checkpatch issues
and tried to address previous feedback as best I could.

I'd greatly appreciate any feedback or thoughts!

thanks
-john

New in v6:
* Felipe previously had disliked extending the dwc3 binding
  to allow for more flexible clock and resest lists, so in
  the last series I switched back to the dwc3-simple-of.c 
  approach, but Rob pushed back on the last series, and with
  no reply from Felipe, I've switched back to this appraoch.
  Clear guidance would be appreciated here!
* Fixed build issue Reported-by: kbuild test robot <lkp@...el.com>


Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
CC: ShuFan Lee <shufan_lee@...htek.com>
Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc: Suzuki K Poulose <suzuki.poulose@....com>
Cc: Chunfeng Yun <chunfeng.yun@...iatek.com>
Cc: Yu Chen <chenyu56@...wei.com>
Cc: Felipe Balbi <balbi@...nel.org>
Cc: Hans de Goede <hdegoede@...hat.com>
Cc: Andy Shevchenko <andy.shevchenko@...il.com>
Cc: Jun Li <lijun.kernel@...il.com>
Cc: Valentin Schneider <valentin.schneider@....com>
Cc: Jack Pham <jackp@...eaurora.org>
Cc: linux-usb@...r.kernel.org
Cc: devicetree@...r.kernel.org

John Stultz (5):
  dt-bindings: usb: generic: Add role-switch-default-mode binding
  usb: dwc3: Add support for role-switch-default-mode binding
  dt-bindings: usb: dwc3: Allow clock list & resets to be more flexible
  usb: dwc3: Rework clock initialization to be more flexible
  usb: dwc3: Rework resets initialization to be more flexible

Yu Chen (3):
  usb: dwc3: Registering a role switch in the DRD code.
  dt-bindings: misc: Add bindings for HiSilicon usb hub and data role
    switch functionality on HiKey960
  misc: hisi_hikey_usb: Driver to support usb functionality of Hikey960

 .../bindings/misc/hisilicon-hikey-usb.txt     |  40 ++++
 .../devicetree/bindings/usb/dwc3.txt          |   5 +-
 .../devicetree/bindings/usb/generic.txt       |   6 +
 drivers/misc/Kconfig                          |   6 +
 drivers/misc/Makefile                         |   1 +
 drivers/misc/hisi_hikey_usb.c                 | 178 ++++++++++++++++++
 drivers/usb/dwc3/core.c                       |  22 +--
 drivers/usb/dwc3/core.h                       |   6 +
 drivers/usb/dwc3/drd.c                        |  96 +++++++++-
 9 files changed, 341 insertions(+), 19 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/misc/hisilicon-hikey-usb.txt
 create mode 100644 drivers/misc/hisi_hikey_usb.c

-- 
2.17.1