lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <1526438467-12470-1-git-send-email-yamada.masahiro@socionext.com>
Date:   Wed, 16 May 2018 11:41:05 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-usb@...r.kernel.org,
        Felipe Balbi <felipe.balbi@...ux.intel.com>
Cc:     Rob Herring <robh@...nel.org>, Roger Quadros <rogerq@...com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        devicetree@...r.kernel.org, Felipe Balbi <balbi@...nel.org>,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH v3 0/2] usb: dwc3: support clocks and resets for DWC3 core


In the current design of DWC3 driver,
the DT typically becomes a nested structure like follows:

  dwc3-glue {
          compatible = "foo,dwc3";
          ...

          dwc3 {
                  compatible = "snps,dwc3";
                  ...
          };
  }

The current DWC3 core (drivers/usb/dwc3/core.c) can not handle
clocks / resets at all.

The only solution we have now, is to put DWC3 core node under
the glue layer node, then add clocks and resets there.
Actually, dwc3-of-simple.c exists to handle clocks and resets.

As always for digital circuits, DWC3 core IP itself needs clock input.
This is specific to this IP.  So, supporting clocks and resets in
dwc3/core.c makes sense.

In this version, the number of clocks (and names) is specific
to this IP, with clock names taken from Synopsys datasheet.


Masahiro Yamada (2):
  usb: dwc3: use local copy of resource to fix-up register offset
  usb: dwc3: support clocks and resets for DWC3 core

 Documentation/devicetree/bindings/usb/dwc3.txt |  21 +++++
 drivers/usb/dwc3/core.c                        | 118 +++++++++++++++++++------
 drivers/usb/dwc3/core.h                        |   8 ++
 3 files changed, 122 insertions(+), 25 deletions(-)

-- 
2.7.4

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ