Re: [PATCH 1/2] i2c-mv64xxx: Fix timing issue on Armada XP (errataFE-8471889)

[Wolfram Sang]

On Fri, Jun 07, 2013 at 06:25:00PM +0200, Thomas Petazzoni wrote:
> Dear Gregory CLEMENT,
> 
> On Fri,  7 Jun 2013 17:48:59 +0200, Gregory CLEMENT wrote:
> 
> > +/*
> > + * 5us delay in order to avoid repeated start
> > + * timing violation on Armada XP SoC.
> > + */
> > +static int mv64xxx_i2c_errata_delay;
> 
> This should probably be a per-I2C controller variable, i.e in
> mv64xxx_i2c_data.

Yes.

> 
> 
> > +	if (!mv64xxx_i2c_errata_delay &&
> > +	    of_machine_is_compatible("marvell,armadaxp"))
> > +		mv64xxx_i2c_errata_delay = 1;
> 
> I am wondering whether it should be done this way, or using a separate
> DT property.

Need to think about it. It is similar to the sda-hold-time issue, I
guess.

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