linux-kernel - [RFC 0/2] get rid of remaining users of attach

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Message-Id: <1417711313-7257-1-git-send-email-wsa@the-dreams.de>
Date:	Thu,  4 Dec 2014 17:41:51 +0100
From:	Wolfram Sang <wsa@...-dreams.de>
To:	linuxppc-dev@...abs.org
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Wolfram Sang <wsa@...-dreams.de>
Subject: [RFC 0/2] get rid of remaining users of attach_adapter

The attach_adapter mechanism of the I2C framework is deprecated for years.
There are two users left, drivers for old Macintosh computers. I recently got
the idea of replacing this mechanism with a custom one with the help of
deferred probing. Because I don't have the hardware, I worked on a seperate
branch where I modified the windtunnel driver to be runnable on my Renesas
Lager board (ARM). I first verified that the attach_adapter method was used,
then the driver rightfully failed on detecting the i2c clients. Using my custom
mechanism, the same happens: all busses get scanned, then the clients cannot be
detected. Since I didn't change the actual detection code, I assume that it
should be working on those Macintosh devices as well. The keywest driver is
only compile-tested. That being said, I'd be more than happy, if we could find
someone willing to test these patches. If they could be applied, we can
_finally_ get rid of this legacy mechanism and clean up the i2c core.

The branch I used for ARM compilation is here:

git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/attach_adapter_removal_with_arm_compile-experimental

Thanks,

   Wolfram

Wolfram Sang (2):
  macintosh: therm_windtunnel: drop using attach adapter
  sound: ppc: keywest: drop using attach adapter

 drivers/macintosh/therm_windtunnel.c | 25 +++++++++++++++++++++++--
 sound/ppc/keywest.c                  | 21 ++++++++++++++++++---
 2 files changed, 41 insertions(+), 5 deletions(-)

-- 
2.1.3

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