Re: [PATCH v6 05/18] clk: qcom: kpss-xcc: convert to parent data API

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On Thu, Mar 24, 2022 at 06:06:50PM -0700, Stephen Boyd wrote:
> Quoting Ansuel Smith (2022-03-21 16:15:35)
> > Convert the driver to parent data API. From the Documentation pll8_vote
> > and pxo should be declared in the DTS so fw_name can be used instead of
> > parent_names. Name is still used to save regression on old definition.
> > 
> > Signed-off-by: Ansuel Smith <ansuelsmth@xxxxxxxxx>
> > ---
> >  drivers/clk/qcom/kpss-xcc.c | 25 ++++++++-----------------
> >  1 file changed, 8 insertions(+), 17 deletions(-)
> > 
> > diff --git a/drivers/clk/qcom/kpss-xcc.c b/drivers/clk/qcom/kpss-xcc.c
> > index 4fec1f9142b8..347f70e9f5fe 100644
> > --- a/drivers/clk/qcom/kpss-xcc.c
> > +++ b/drivers/clk/qcom/kpss-xcc.c
> > @@ -12,9 +12,9 @@
> >  #include <linux/clk.h>
> >  #include <linux/clk-provider.h>
> >  
> > -static const char *aux_parents[] = {
> > -       "pll8_vote",
> > -       "pxo",
> > +static const struct clk_parent_data aux_parents[] = {
> > +       { .name = "pll8_vote", .fw_name = "pll8_vote" },
> > +       { .name = "pxo", .fw_name = "pxo" },
> >  };
> >  
> >  static unsigned int aux_parent_map[] = {
> > @@ -32,8 +32,8 @@ MODULE_DEVICE_TABLE(of, kpss_xcc_match_table);
> >  static int kpss_xcc_driver_probe(struct platform_device *pdev)
> >  {
> >         const struct of_device_id *id;
> > -       struct clk *clk;
> >         void __iomem *base;
> > +       struct clk_hw *hw;
> >         const char *name;
> >  
> >         id = of_match_device(kpss_xcc_match_table, &pdev->dev);
> > @@ -55,24 +55,15 @@ static int kpss_xcc_driver_probe(struct platform_device *pdev)
> >                 base += 0x28;
> >         }
> >  
> > -       clk = clk_register_mux_table(&pdev->dev, name, aux_parents,
> > -                                    ARRAY_SIZE(aux_parents), 0, base, 0, 0x3,
> > -                                    0, aux_parent_map, NULL);
> > +       hw = __devm_clk_hw_register_mux(&pdev->dev, NULL, name, ARRAY_SIZE(aux_parents),
> 
> Does something in devm_clk_hw_register_mux() not work here? Do we need a
> devm_clk_hw_register_mux_parent_data()? If so, please add it.
>

Main reason I can't use devm_clk_hw_register_mux is the fact I can't
provide a parent_map. Will add an additional macro. OK.

> > +                                       NULL, NULL, aux_parents, 0, base, 0, 0x3,
> > +                                       0, aux_parent_map, NULL);
> >

-- 
	Ansuel



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