[PATCH v2 2/2] powerpc/mpic: add global timer support

Li Yang-R58472 r58472 at freescale.com
Mon Aug 13 16:17:36 EST 2012



> -----Original Message-----
> From: Wang Dongsheng-B40534
> Sent: Monday, August 13, 2012 1:54 PM
> To: Wood Scott-B07421
> Cc: benh at kernel.crashing.org; paulus at samba.org; linuxppc-
> dev at lists.ozlabs.org; Gala Kumar-B11780; Li Yang-R58472
> Subject: RE: [PATCH v2 2/2] powerpc/mpic: add global timer support
> 
> 
> 
> > -----Original Message-----
> > From: Wood Scott-B07421
> > Sent: Saturday, August 11, 2012 3:40 AM
> > To: Wang Dongsheng-B40534
> > Cc: benh at kernel.crashing.org; paulus at samba.org; linuxppc-
> > dev at lists.ozlabs.org; Gala Kumar-B11780; Li Yang-R58472
> > Subject: Re: [PATCH v2 2/2] powerpc/mpic: add global timer support
> >
> > On 08/10/2012 12:54 AM, Dongsheng.wang at freescale.com wrote:
> > > +static const struct of_device_id mpic_timer_ids[] = {
> > > +	{ .compatible = "open-pic,global-timer", },
> > > +	{ .compatible = "fsl,global-timer", },
> > > +	{},
> > > +};
> > > +
> > > +static int __init mpic_timer_init(void) {
> > > +	struct device_node *np = NULL;
> > > +
> > > +	for_each_node_by_type(np, "open-pic")
> > > +		if (of_match_node(mpic_timer_ids, np))
> > > +			group_init(np);
> > > +
> > > +	if (list_empty(&group_list))
> > > +		return -ENODEV;
> > > +
> > > +	return 0;
> > > +}
> > > +arch_initcall(mpic_timer_init);
> >
> > Oh, and don't probe by device_type.

Actually it does match the compatible.  The device_type is just to speed up the search.  I don't think it's a problem unless the device type is not mandatory any more for defined types.

- Leo


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