linux-kernel - Re: [RFC] i2c: omap: TEST: do IP reset during probe.

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Message-ID: <7hzjbdd57j.fsf@deeprootsystems.com>
Date:	Wed, 26 Nov 2014 13:25:52 -0800
From:	Kevin Hilman <khilman@...nel.org>
To:	Alexander Kochetkov <al.kochet@...il.com>
Cc:	linux-omap@...r.kernel.org, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org, Felipe Balbi <balbi@...com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Tony Lindgren <tony@...mide.com>
Subject: Re: [RFC] i2c: omap: TEST: do IP reset during probe.

Alexander Kochetkov <al.kochet@...il.com> writes:

> NOT FOR UPSTREAM
>
> The patch checks if IP reset during probe could bring I2C bus
> to a free state on omap2430 - omap3530 boards.
>
> I guess, IP hold one of I2C lines in a low state.
> I guess, u-boot haven't sent a stop condition.
>
> The patch is rebased on branch 'i2c/for-next' of
> git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
> (6e79807443cba7397cd855ed29d6faba51d4c893)
>
> Signed-off-by: Alexander Kochetkov <al.kochet@...il.com>
> Reported-by: Kevin Hilman <khilman@...nel.org>
> Tested-by: Kevin Hilman <khilman@...nel.org>

Built for omap2plus_defconfig and tested on all my OMAP boards.  Results
here:

http://people.linaro.org/~khilman/tmp/next-20141126-1-g760388ee02e4/arm-omap2plus_defconfig/
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