lkml.org 
[lkml]   [2013]   [Feb]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 0/5] Add ChromeOS Embedded Controller support
From
Hi Samuel,

On Tue, Feb 12, 2013 at 4:37 PM, Simon Glass <sjg@chromium.org> wrote:
> Hi Samuel,
>
> On Wed, Dec 12, 2012 at 1:33 PM, Simon Glass <sjg@chromium.org> wrote:
>> (get_maintainer.pl has produced an enormous list - I hope you are all
>> interested.)
>>
>> The ChromeOS Embedded Controller (EC) is an Open Source EC implementation
>> used on ARM and Intel Chromebooks. Current implementations use a Cortex-M3
>> connected on a bus (such as I2C, SPI, LPC) to the AP. A separate interrupt
>> line is used to indicate when the EC needs service.
>>
>> Functions performed by the EC vary by platform, but typically include
>> battery charging, keyboard scanning and power sequencing.
>>
>> This series includes support for the EC message protocol, and implements
>> a matrix keyboard handler for Linux using the protocol. The EC performs
>> key scanning and passes scan data in response to AP requests. This is
>> used on the Samsung ARM Chromebook. No driver is available for LPC at
>> present.
>>
>> This series can in principle operate on any hardware, but for it to actually
>> work on the Samsung ARM Chromebook, it needs patches which are currently in
>> progress to mainline: Exynos FDT interrupt support and I2C bus arbitration.
>>
>> The driver is device-tree-enabled and a suitable binding is included in
>> this series. Example device tree nodes are included in the examples,
>> but no device tree patch for exynos5250-snow is provided at this stage, since
>> we must wait for the above-mentioned patches to land to avoid errors from
>> dtc. This can be added with a follow-on patch when that work is complete.
>>
>>
>> Simon Glass (5):
>> mfd: Add ChromeOS EC messages header
>> mfd: Add ChromeOS EC implementation
>> mfd: Add ChromeOS EC I2C driver
>> mfd: Add ChromeOS EC SPI driver
>> Input: Add ChromeOS EC keyboard driver
>
> Are you planning to pick the mfd part of this series please? I am
> going to send a new version of the input patch on its own now that the
> DT binding is agreed.

Actually I see that __devinit/__devexit are gone in next/master. I
will resend the whole series again as v2. The first four patches are
for mfd and there will be two more for input.

Regards,
Simon

>>
>> .../devicetree/bindings/input/cros-ec-keyb.txt | 77 ++
>> Documentation/devicetree/bindings/mfd/cros-ec.txt | 56 +
>> drivers/input/keyboard/Kconfig | 10 +
>> drivers/input/keyboard/Makefile | 1 +
>> drivers/input/keyboard/cros_ec_keyb.c | 413 ++++++
>> drivers/mfd/Kconfig | 28 +
>> drivers/mfd/Makefile | 3 +
>> drivers/mfd/cros_ec.c | 219 ++++
>> drivers/mfd/cros_ec_i2c.c | 262 ++++
>> drivers/mfd/cros_ec_spi.c | 412 ++++++
>> include/linux/mfd/cros_ec.h | 190 +++
>> include/linux/mfd/cros_ec_commands.h | 1369 ++++++++++++++++++++
>> 12 files changed, 3040 insertions(+), 0 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/input/cros-ec-keyb.txt
>> create mode 100644 Documentation/devicetree/bindings/mfd/cros-ec.txt
>> create mode 100644 drivers/input/keyboard/cros_ec_keyb.c
>> create mode 100644 drivers/mfd/cros_ec.c
>> create mode 100644 drivers/mfd/cros_ec_i2c.c
>> create mode 100644 drivers/mfd/cros_ec_spi.c
>> create mode 100644 include/linux/mfd/cros_ec.h
>> create mode 100644 include/linux/mfd/cros_ec_commands.h
>>
>> --
>> 1.7.7.3
>>


\
 
 \ /
  Last update: 2013-02-13 03:21    [W:0.131 / U:0.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site