Re: [PATCH v5 7/8] clk: lochnagar: Add support for the Cirrus Logic Lochnagar

Stephen Boyd
2018-12-21T20:44:37Z

Quoting Charles Keepax (2018-12-21 05:50:37)
> On Thu, Nov 29, 2018 at 11:53:51PM -0800, Stephen Boyd wrote:
> > Quoting Charles Keepax (2018-11-20 06:16:30)
>
> > > + break;
> > > + default:
> > > + dev_err(priv->dev, "Unknown Lochnagar type: %d\n", priv->type);
> > > + return -EINVAL;
> > > + }
> > > +
> > > + if (!priv->parents)
> > > + return -ENOMEM;
> > > +
> > > + for (i = 0; i < priv->nparents; i++) {
> > > + j = of_property_match_string(np, "clock-names",
> > > + priv->parents[i]);
> > > + if (j >= 0)
> > > + priv->parents[i] = of_clk_get_parent_name(np, j);
> >
> > Isn't this of_clk_parent_fill()? But there are holes or something?
> >
>
> I guess rather than a fill, this is perhaps more of a name and
> replace. I could make this a core function if you prefer? I think
> there are a couple of other drivers that could also use it,
> although might be worth doing that as a separate series rather
> than holding this one up.

No worries. I'm actively changing the parent_names design anyway so this
is fine.

>
>
> > > +static struct platform_driver lochnagar_clk_driver = {
> > > + .driver = {
> > > + .name = "lochnagar-clk",
> > > + .of_match_table = of_match_ptr(lochnagar_of_match),
> >
> > I suspect of_match_ptr() makes the build complain about unused match
> > table when CONFIG_OF=N. Can you try building it that way?
> >
>
> The driver depends on the MFD which in turn depends on CONFIG_OF
> so that shouldn't be a problem.

Ok. Then it's really not needed and it's better to drop the usage of
of_match_ptr() then.

>