[PATCH v2 6/7] i2c: pxa: support i2c controller from DT

Russell King - ARM Linux linux at arm.linux.org.uk
Sat Jul 30 02:55:47 EST 2011


On Fri, Jul 29, 2011 at 10:52:22AM -0600, Grant Likely wrote:
> On Thu, Jul 28, 2011 at 02:41:32PM +0800, Haojian Zhuang wrote:
> > -	/*
> > -	 * If "dev->id" is negative we consider it as zero.
> > -	 * The reason to do so is to avoid sysfs names that only make
> > -	 * sense when there are multiple adapters.
> > -	 */
> > -	i2c->adap.nr = dev->id;
> > -	snprintf(i2c->adap.name, sizeof(i2c->adap.name), "pxa_i2c-i2c.%u",
> > -		 i2c->adap.nr);
> >  
> > -	i2c->clk = clk_get(&dev->dev, NULL);
> > +	if (np) {
> > +		i2c->adap.nr = idx++;
> 
> Use this so that a bus number gets dynamically assigned:
> 		i2c->adap.nr = -1;
> 
> > +		snprintf(i2c->adap.name, sizeof(i2c->adap.name),
> > +			"pxa2xx-i2c.%u", i2c->adap.nr);
> > +		i2c->clk = clk_get_sys(i2c->adap.name, NULL);
> 
> Missing i2c->adap.dev.of_node = dev->dev.of_node;

And here we go again.  Is it really the case that this DT stuff doesn't
have stable device names?


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