Re: [PATCH v2 1/1] serial: 8250_bcm7271: Use devm_clk_get_optional_enabled()

Andy Shevchenko
2023-10-05T16:16:36Z

On Thu, Oct 05, 2023 at 05:19:38PM +0200, Andi Shyti wrote:

[...]

> > - baud_mux_clk = devm_clk_get(dev, "sw_baud");
> > - if (IS_ERR(baud_mux_clk)) {
> > - if (PTR_ERR(baud_mux_clk) == -EPROBE_DEFER) {
> > - ret = -EPROBE_DEFER;
> > - goto release_dma;
> > - }
> > - dev_dbg(dev, "BAUD MUX clock not specified\n");
> > - } else {
> > + baud_mux_clk = devm_clk_get_optional_enabled(dev, "sw_baud");
> > + ret = PTR_ERR_OR_ZERO(baud_mux_clk);
> > + if (ret)
> > + goto release_dma;
> > + if (baud_mux_clk) {
> > dev_dbg(dev, "BAUD MUX clock found\n");
> > - ret = clk_prepare_enable(baud_mux_clk);
> > - if (ret)
> > - goto release_dma;
> > +
> > priv->baud_mux_clk = baud_mux_clk;
> > init_real_clk_rates(dev, priv);
> > clk_rate = priv->default_mux_rate;
> > + } else {
> > + dev_dbg(dev, "BAUD MUX clock not specified\n");
>
> little behavioral change here, but I don't think this is a
> problem.

You meant that "if (!x) else" had been changed to "if (x) else" semantics?
Otherwise I don't see any difference.

> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>

Thank you!

--
With Best Regards,
Andy Shevchenko