Re: [PATCH v2 0/3] i2c: octeon: thunder: Fix i2c not working on Octeon

[Paul Burton <paul.burton@imgtec.com>]

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Hi Jan,

On Tuesday, 15 November 2016 14:03:15 GMT Jan Glauber wrote:
> On Mon, Nov 14, 2016 at 01:53:40PM -0600, Steven J. Hill wrote:
> > On 11/14/2016 12:50 PM, Jan Glauber wrote:
> > > Since time is running out for 4.9 (or might have already if you're not
> > > going to send another pull request) I'm going for the safe option
> > > to fix the Octeon i2c problems, which is:
> > > 
> > > 1. Reverting the readq_poll_timeout patch since it is broken
> > > 2. Apply Patch #2 from Paul
> > > 3. Add a small fix for the recovery that makes Paul's patch
> > > 
> > >    work on ThunderX
> > > 
> > > I'll try to come up with a better solution for 4.10. My plan is to get
> > > rid
> > > of the polling-around-interrupt thing completely, but for that we need
> > > more
> > > time to make it work on Octeon.
> > > 
> > > Please consider for 4.9.
> > 
> > Hey Jan.
> > 
> > This does not work on Octeon 71xx platforms. I will look at it more
> > closely tomorrow.
> 
> Paul, can you confirm this? It doesn't make sense for me, since patches #1
> and #3 are unlikely to break anything... And patch #2 worked for you.

For me v4.9-rc5 plus these 3 patches boots fine on a Rhino Labs UTM8 system 
which previously hung whilst probing the I2C driver & devices. Feel free to 
add:

    Tested-by: Paul Burton <paul.burton@imgtec.com>

Thanks,
    Paul

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