* Tony Lindgren <t...@atomide.com> [161026 07:17]:
> * Tony Lindgren <t...@atomide.com> [161025 09:51]:
> > We can now use generic parser. To support the legacy binding without
> > #pinctrl-cells, add pcs_quirk_missing_pinctrl_cells() and warn about
> > missing #pinctrl-cells.
> ...
>
> > +/**
> > + * pcs_quirk_missing_pinctrl_cells - handle legacy binding
> > + * @pcs: pinctrl driver instance
> > + * @np: device tree node
> > + * @cells: number of cells
> > + *
> > + * Handle legacy binding with no #pinctrl-cells. This should be
> > + * always two pinctrl-single,bit-per-mux and one for others.
> > + * At some point we may want to consider removing this.
> > + */
> > +static int pcs_quirk_missing_pinctrl_cells(struct pcs_device *pcs,
> > + struct device_node *np,
> > + int cells)
> > +{
> > + struct property *p;
> > + const char *name = "#pinctrl-cells";
> > + int error;
> > + u32 val;
> > +
> > + error = of_property_read_u32(np, name, &val);
> > + if (!error)
> > + return 0;
> > +
> > + dev_warn(pcs->dev, "please update dts to use %s = <%i>\n",
> > + name, cells);
> > +
> > + p = devm_kzalloc(pcs->dev, sizeof(*p), GFP_KERNEL);
> > + if (!p)
> > + return -ENOMEM;
> > +
> > + p->length = sizeof(__be32);
> > + p->value = devm_kzalloc(pcs->dev, sizeof(__be32), GFP_KERNEL);
> > + if (!p->value)
> > + return -ENOMEM;
> > + *(__be32 *)p->value = cpu_to_be32(cells);
> > +
> > + p->name = devm_kstrdup(pcs->dev, name, GFP_KERNEL);
> > + if (!p->name)
> > + return -ENOMEM;
> > +
> > + pcs->missing_nr_pinctrl_cells = p;
> > +
> > + return of_add_property(np, pcs->missing_nr_pinctrl_cells);
> > +}
>
> Looking at some make randconfig results, looks like we don't have
> of_add_property() and of_remove_property() exported. Is there some
> reason not to export them?
I'll only do of_add_property() and of_remove_property() if we have
IS_BUILTIN(CONFIG_PINCTRL_SINGLE). I bet I'm the only one using it
as a loadable module right now :) Then we can remove those if we
decide to export of_add_property() and of_remove_property().
Regards,
Tony
