[PATCH 1/5] mfd: twl-core: Fix passing of platform data in the device tree case
Felipe Balbi
balbi at ti.com
Mon Nov 18 13:40:29 EST 2013
Hi,
On Mon, Nov 18, 2013 at 05:46:38PM +0000, Lee Jones wrote:
> > > > +static struct of_dev_auxdata twl_auxdata_lookup[] = {
> > > > + OF_DEV_AUXDATA("ti,twl4030-gpio", 0, "twl4030-gpio", NULL),
> > > > + { /* sentinel */ },
> > > > +};
> > > > +
> > > > /* NOTE: This driver only handles a single twl4030/tps659x0 chip */
> > > > static int
> > > > twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
> > > > @@ -1271,10 +1276,14 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
> > > > twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
> > > > }
> > > >
> > > > - if (node)
> > > > - status = of_platform_populate(node, NULL, NULL, &client->dev);
> > > > - else
> > > > + if (node) {
> > > > + if (pdata)
> > > > + twl_auxdata_lookup[0].platform_data = pdata->gpio;
> > > > + status = of_platform_populate(node, NULL, twl_auxdata_lookup,
> > > > + &client->dev);
> > > > + } else {
> > > > status = add_children(pdata, irq_base, id->driver_data);
> > >
> > > Why doesn't the TWL driver use the MFD framework for this stuff?
> >
> > that's reminiscent from years ago and, surely, needs to be fixed. Should
> > we gate $subject for that, though ? This has been in tree for quite a
> > few years already and Tony's patch is still a step forward, since most
> > omap3 platforms would break on DT-only without it.
>
> I didn't say that I would reject the patch. I was just surprised to
> see so much hand-rolling, as the MFD core code does much of it
> automatically. This is the first time I've taken a look at this and it
> seems to be quite the relic.
alright, thanks for confirming.
> > There are quite a few folks who could volunteer to fixing that after
> > Tony's patch is in (me included, although there could be better choices
> > hehe).
>
> Well it's not doing any harm. I'll make a note to fix it myself if a)
> no one has done so already and b) I manage to find some spare
> time. The latter issue is less likely to be resolved. :)
>
> Are you Acking this patch by the way?
sure:
Acked-by: Felipe Balbi <balbi at ti.com>
--
balbi
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