linux-kernel - Re: [PATCH v3 2/4] i2c: omap: implement workaround for handling invalid BB-bit values

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Message-Id: <72E65902-3FA7-4845-BF9B-B6CA79E0D61B@gmail.com>
Date:	Thu, 27 Nov 2014 01:30:03 +0300
From:	Alexander Kochetkov <al.kochet@...il.com>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Kevin Hilman <khilman@...nel.org>, Felipe Balbi <balbi@...com>,
	Wolfram Sang <wsa@...-dreams.de>,
	linux-omap <linux-omap@...r.kernel.org>,
	linux-i2c@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/4] i2c: omap: implement workaround for handling invalid BB-bit values

Hello, Tony!

24.11.2014 22:47, Tony Lindgren <tony@...mide.com> *:

> If you post a patch, I can test boot with it. Looks like the failing
> ones have i2c rev3.3 on 34xx vs rev4.4 on 36xx.

> So I doubt we just want to change the test for for a higher rev number
> for  OMAP_I2C_REV_ON_3430_3530.

You 100% right here.

Functional mode bits are unimplemented in the SYSTEST register on omap3530.
"10:5 Reserved Write 0s for future compatibility. Read returns 0."
That was the reason.

My fault.
Thank you for giving right directions.
Thanks Kevin for running test, so I could debug the reason.

Regards,
Alexander.

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