On Wednesday 24 February 2016 16:02:28 Philipp Zabel wrote:
> > > @@ -473,6 +474,12 @@ static const struct of_device_id
> > > imx6q_pinctrl_of_match[] = {
> > >
> > > static int imx6q_pinctrl_probe(struct platform_device *pdev)
> > > {
> > > + struct device_node *syscon_np;
> > > +
> > > + syscon_np = of_find_compatible_node(NULL, NULL,
> > > "fsl,imx6q-iomuxc-gpr");
> > > + if (syscon_np)
> > > + syscon_register(&pdev->dev, syscon_np);
> > > +
> > > return imx_pinctrl_probe(pdev, &imx6q_pinctrl_info);
> > > }
> > >
> > > The pinctrl driver is probed at arch_initcall time.
> >
> > I still don't see it where you are getting with this. Is this just for
> > the debugfs interface or is there something else this does on top of
> > that?
>
> Sorry, yes, this is about the missing debugfs functionality.
Ok, so maybe there is a different way of doing this: If I understood
it correctly, we now lost the debugfs handling on all syscon nodes?
Should we try to come up with a way to bring it back for all of them
then, rather than having to do it per device?
I can see two possible ways of doing that:
a) change the regmap code to provide a debugfs interface for all
regmaps, including those without a device
b) change the syscon driver to explicitly register the debugfs
interface at a later point in boot when the devices become
available
Arnd
