linux-kernel - Re: [PATCH v5 0/7] platform/chrome: Add user-space dev inferface support

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Message-ID: <54E1A825.7090408@collabora.co.uk>
Date:	Mon, 16 Feb 2015 09:19:49 +0100
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Olof Johansson <olof@...om.net>
CC:	Lee Jones <lee.jones@...aro.org>,
	Doug Anderson <dianders@...omium.org>,
	Bill Richardson <wfrichar@...omium.org>,
	Simon Glass <sjg@...gle.com>,
	Gwendal Grignou <gwendal@...gle.com>,
	Jonathan Corbet <corbet@....net>,
	Varka Bhadram <varkabhadram@...il.com>,
	Paul Bolle <pebolle@...cali.nl>,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 0/7] platform/chrome: Add user-space dev inferface
 support

Hello Olof,

On 02/02/2015 12:26 PM, Javier Martinez Canillas wrote:
> Hello,
> 
> The mainline ChromeOS Embedded Controller (EC) driver is still missing some
> features that are present in the downstream ChromiumOS tree. These are:
> 
>   - Low Pin Count (LPC) interface
>   - User-space device interface
>   - Access to vboot context stored on a block device
>   - Access to vboot context stored on EC's nvram
>   - Power Delivery Device
>   - Support for multiple EC in a system
> 
> This is a fifth version of a series that adds support for the first two of
> the missing features: the EC LPC and EC character device interfaces that
> are used by user-space to access the ChromeOS EC. The support patches were
> taken from the downstream ChromiumOS 3.14 tree with the fixes and cleanups
> squashed to have a minimal patch-set.
> 

Any comments on this series? The last version was posted a couple of weeks
ago but the series have been in the list for months. Lee has already acked
the mfd changes so you can merge all through your chrome-platform tree if
you want.

It wold be great if this series get in to have the EC user-space interface
supported and to minimize the delta with the Chromemium OS kernel since it
still has other features that needs to be upstreamed like multiple EC in a
system and access to vboot context stored in block device or EC's nvram.

Best regards,
Javier
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