Re: [PATCH V3 3/4] ASoC: tas571x: New driver for TI TAS571x power amplifiers

From: Mark Brown
Date: Mon May 04 2015 - 09:57:55 EST


On Mon, May 04, 2015 at 06:51:32AM -0700, Kevin Cernekee wrote:
> On Mon, May 4, 2015 at 4:45 AM, Mark Brown <broonie@xxxxxxxxxx> wrote:
> > On Sun, May 03, 2015 at 05:00:18PM -0700, Kevin Cernekee wrote:
> >> + if (dev->of_node) {
> >> + const struct of_device_id *of_id;
> >> +
> >> + of_id = of_match_device(tas571x_of_match, dev);
> >> + if (of_id)
> >> + priv->chip = of_id->data;
> >> + }

> > Doesn't of_match_device() do the right thing with devices not registered
> > from DT?

> Not sure. What kinds of situations are you concerned about?

I'm wondering why we need to bother checking for dev->of_node before
calling it.

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