Re: [PATCH v2 3/5] irqchip: Allow QCOM_PDC to be loadable as a permanent module

[John Stultz]

On Fri, Jun 26, 2020 at 12:42 AM Stephen Boyd <swboyd@xxxxxxxxxxxx> wrote:
>
> Quoting John Stultz (2020-06-24 17:10:37)
> > diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c
> > index 6ae9e1f0819d..3fee8b655da1 100644
> > --- a/drivers/irqchip/qcom-pdc.c
> > +++ b/drivers/irqchip/qcom-pdc.c
> > @@ -430,4 +432,33 @@ static int qcom_pdc_init(struct device_node *node, struct device_node *parent)
> >         return ret;
> >  }
> >
> > +#ifdef MODULE
> > +static int qcom_pdc_probe(struct platform_device *pdev)
> > +{
> > +       struct device_node *np = pdev->dev.of_node;
> > +       struct device_node *parent = of_irq_find_parent(np);
> > +
> > +       return qcom_pdc_init(np, parent);
> > +}
> > +
> > +static const struct of_device_id qcom_pdc_match_table[] = {
> > +       { .compatible = "qcom,pdc" },
> > +       {}
> > +};
> > +MODULE_DEVICE_TABLE(of, qcom_pdc_match_table);
> > +
> > +static struct platform_driver qcom_pdc_driver = {
> > +       .probe = qcom_pdc_probe,
> > +       .driver = {
> > +               .name = "qcom-pdc",
> > +               .of_match_table = qcom_pdc_match_table,
> > +               .suppress_bind_attrs = true,
> > +       },
> > +};
> > +module_platform_driver(qcom_pdc_driver);
> > +#else
> >  IRQCHIP_DECLARE(qcom_pdc, "qcom,pdc", qcom_pdc_init);
>
> Is there any reason to use IRQCHIP_DECLARE if this can work as a
> platform device driver?
>

Hey! Thanks so much for the review!

Mostly it was done this way to minimize the change in the non-module
case. But if you'd rather avoid the #ifdefery I'll respin it without.

thanks
-john