On Wed 04 Jan 03:54 PST 2017, Lee Jones wrote:
> On Mon, 26 Dec 2016, Bjorn Andersson wrote:
>
> > From: Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxx>
> >
> > Implement support for initialization of the lm3533 driver core and
> > probing child devices from Device Tree.
> >
[..]
> > @@ -512,6 +514,11 @@ static int lm3533_device_init(struct lm3533 *lm3533)
> > lm3533_device_bl_init(lm3533);
> > lm3533_device_led_init(lm3533);
> >
> > + if (lm3533->dev->of_node) {
> > + of_platform_populate(lm3533->dev->of_node, NULL, NULL,
> > + lm3533->dev);
> > + }
>
> I think it's save to call of_platform_populate(), even if !of_node.
> It will just fail and return an error code, which you are ignoring
> anyway.
>
I thought so too, but that's apparently how you trigger probing children
of the root node. So we're stuck with a conditional.
[..]
> > static int lm3533_i2c_probe(struct i2c_client *i2c,
> > const struct i2c_device_id *id)
> > {
[..]
> >
> > + if (i2c->dev.of_node) {
>
> I'd prefer this check to be placed in lm3533_pdata_from_of_node().
>
> Just return silently if !dev->of_node.
>
I agree, will update this.
> > + ret = lm3533_pdata_from_of_node(lm3533->dev);
> > + if (ret < 0)
> > + return ret;
> > + }
> > +
> > return lm3533_device_init(lm3533);
> > }
> >
Regards,
Bjorn
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