Re: [PATCH v2 3/6] clk: renesas: Add R-Car X5H CPG driver

[Geert Uytterhoeven]

Hi Marek,

On Wed, 8 Jul 2026 at 23:55, Marek Vasut <marek.vasut@xxxxxxxxxxx> wrote:
> On 7/8/26 12:15 PM, Geert Uytterhoeven wrote:
> > +static int register_fixed_clks(struct r8a78000_cpg_priv *priv)
> > +{
> > +     struct device *dev = priv->dev;
> > +     unsigned long rate;
> > +     struct clk_hw *hw;
> > +     const char *name;
> > +
> > +     for (unsigned int i = 0; i < ARRAY_SIZE(fixed_clk_rates); i++) {
> > +             rate = fixed_clk_rates[i];
> > +             name = devm_kasprintf(dev, GFP_KERNEL, "cpg-%lu", rate);
> > +             if (!name)
> > +                     return -ENOMEM;
> > +
> > +             hw = clk_hw_register_fixed_rate(dev, name, NULL, 0, rate);
>
> Would it be viable to use devm_clk_hw_register_fixed_rate() here ?

Yes, I think so; thanks!

> > +             if (IS_ERR(hw)) {
> > +                     while (i-- > 0)
> > +                             clk_hw_unregister_fixed_rate(priv->fixed_hws[i]);
> > +                     return PTR_ERR(hw);
> > +             }
> > +
> > +             priv->fixed_hws[i] = hw;
> > +     }
> > +
> > +     return devm_add_action_or_reset(dev, unregister_fixed_clks, priv);

And then this, and unregister_fixed_clks() can go, and
r8a78000_cpg_priv.fixed_hws[] is no longer needed after probe.

> > +}

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds