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: <1464916904-37554-1-git-send-email-briannorris@chromium.org>
Date:	Thu,  2 Jun 2016 18:21:40 -0700
From:	Brian Norris <briannorris@...omium.org>
To:	Lee Jones <lee.jones@...aro.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Olof Johansson <olof@...om.net>
Cc:	<linux-kernel@...r.kernel.org>,
	Doug Anderson <dianders@...omium.org>,
	Brian Norris <computersforpeace@...il.com>,
	linux-pwm@...r.kernel.org, devicetree@...r.kernel.org,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Stephen Barber <smbarber@...omium.org>,
	Javier Martinez Canillas <javier@....samsung.com>,
	Benson Leung <bleung@...omium.org>,
	Enric Balletbo <enric.balletbo@...labora.co.uk>,
	Randall Spangler <rspangler@...omium.org>,
	Shawn Nematbakhsh <shawnn@...omium.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Todd Broch <tbroch@...omium.org>,
	Gwendal Grignou <gwendal@...omium.org>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	Brian Norris <briannorris@...omium.org>
Subject: [PATCH v2 0/4] pwm: add support for ChromeOS EC PWM

Hi,

This is version 2 of my series to support the new ChromeOS EC PWM API, so we
can control, e.g., a PWM backlight when its PWM is attached to the EC. It uses
Boris's latest "atomic" hooks for the PWM API (i.e., the ->apply() callback),
which were recently merged.

It seems nice to have the cros_ec_cmd_xfer_status() helper, which we have
locally in the ChromeOS kernel, and which has been part of another larger patch
series:

https://lkml.org/lkml/2016/4/12/342

So I've picked it into this series as well. Tomeu has acknowledged his USB PD
series is on hold for now, so this should be OK.

As this touches MFD (sort of), drivers/platform/chrome/, and drivers/pwm/, I'm
still not sure who it should all go through: Lee, Thierry, or Olof?

Please review.

Regards,
Brian

Change log (also documented in each patch):

v2:
 * drop the "google,max-pwms" property
 * separate the cros_ec vs. PWM abstractions a little more clearly in the driver
 * remove dynamic kzalloc()'s and rely on on-stack memory instead
 * auto-probe the number of PWMs supported

Brian Norris (3):
  mfd: cros_ec: add EC_PWM function definitions
  doc: dt: pwm: add binding for ChromeOS EC PWM
  pwm: add ChromeOS EC PWM driver

Tomeu Vizoso (1):
  mfd: cros_ec: Add cros_ec_cmd_xfer_status helper

 .../devicetree/bindings/pwm/google,cros-ec-pwm.txt |  23 ++
 drivers/platform/chrome/cros_ec_proto.c            |  15 ++
 drivers/pwm/Kconfig                                |   7 +
 drivers/pwm/Makefile                               |   1 +
 drivers/pwm/pwm-cros-ec.c                          | 237 +++++++++++++++++++++
 include/linux/mfd/cros_ec.h                        |  18 ++
 include/linux/mfd/cros_ec_commands.h               |  31 +++
 7 files changed, 332 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.txt
 create mode 100644 drivers/pwm/pwm-cros-ec.c

-- 
2.8.0.rc3.226.g39d4020

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ