[PATCH v4 05/11] pwm: pwm-tiecap: pinctrl support
Thierry Reding
thierry.reding at avionic-design.de
Fri Nov 23 05:51:10 EST 2012
On Fri, Nov 23, 2012 at 10:34:02AM +0000, Philip, Avinash wrote:
> On Fri, Nov 23, 2012 at 02:29:44, Thierry Reding wrote:
> > On Wed, Nov 21, 2012 at 06:41:02PM +0530, Philip, Avinash wrote:
> > [...]
> > > + pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
> > > + if (IS_ERR(pinctrl))
> > > + dev_warn(&pdev->dev, "failed to configure pins from driver\n");
> >
> > I think we already discussed this, but shouldn't this be a fatal error?
>
> I had checked relevant discussion and found this can be warning message.
> This is because most boards don't have pinctrl implemented at this point,
> or may never have.
>
> https://lkml.org/lkml/2012/9/11/369
>
> Any way I will change to
> dev_warn(&pdev->dev, "unable to select pin group\n");
> as in other drivers.
But in case pinctrl isn't implemented, shouldn't the implementation of
devm_pinctrl_get_select_default() just be a no-op?
Thierry
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