linux-kernel - Re: [PATCH 0/2] Platform: x86: chromeos_laptop

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Message-ID: <CAC-DJzKqv7b0fdPOL5+Sx2AF7EG=2+xrq8R+UrK-ev1-sNu=Pw@mail.gmail.com>
Date:	Thu, 18 Jul 2013 18:13:35 +0200
From:	Martin Nordholts <enselic@...il.com>
To:	Benson Leung <bleung@...omium.org>
Cc:	matthew.garrett@...ula.com, linux-kernel@...r.kernel.org,
	platform-driver-x86@...r.kernel.org, adurbin@...omium.org,
	olofj@...omium.org, axel.lin@...ics.com
Subject: Re: [PATCH 0/2] Platform: x86: chromeos_laptop - Deferred Probing

2013/7/18 Benson Leung <bleung@...omium.org>
>
> The following patch series refactors the dmi check system and
> returns -EPROBE_DEFER when an expected i2c adapter is not present
> at probe time.
>
> This will allow the touchpad, touchscreen, and light sensors on
> Pixel to load even if the i915 DDC and PANEL buses are instantiated
> after chromeos_laptop.
>
> [PATCH 1/2] Platform: x86: chromeos_laptop - Restructure device associations
> [PATCH 2/2] Platform: x86: chromeos_laptop - Use deferred probing


Hi,

I have worked on the same problem for the last days and just submitted
my solution proposal for review:
http://www.mail-archive.com/platform-driver-x86@vger.kernel.org/msg04440.html

One downside with the solution in this set of patches is that more
lines are added to the driver.
By making use of the i2c_driver.detect() mechanism like in my patch,
we can actually reduce the number of lines in the driver.

Looking forward to your comments on my other solution proposal!

/ Martin
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