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SubjectRe: [PATCH v1] clk: mediatek: mt8183: Register 13MHz clock earlier for clocksource
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On Fri, 2019-06-07 at 10:59 -0700, Stephen Boyd wrote:
> Quoting Weiyi Lu (2019-06-06 20:11:52)
> > diff --git a/drivers/clk/mediatek/clk-mt8183.c b/drivers/clk/mediatek/clk-mt8183.c
> > index 9d86510..a8f50bc 100644
> > --- a/drivers/clk/mediatek/clk-mt8183.c
> > +++ b/drivers/clk/mediatek/clk-mt8183.c
> > @@ -1167,37 +1169,62 @@ static int clk_mt8183_apmixed_probe(struct platform_device *pdev)
> > return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
> > }
> >
> > +static struct clk_onecell_data *top_clk_data;
> > +
> > +static void clk_mt8183_top_init_early(struct device_node *node)
> > +{
> > + int i;
> > +
> > + if (!top_clk_data) {
>
> Is this function ever called more than once? I believe the answer is no
> so this check should be removed.
>

Thanks for reminding. I'll fix in next version.

> > + top_clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
> > +
> > + for (i = 0; i < CLK_TOP_NR_CLK; i++)
> > + top_clk_data->clks[i] = ERR_PTR(-EPROBE_DEFER);
> > + }
> > +
> > + mtk_clk_register_factors(top_early_divs, ARRAY_SIZE(top_early_divs),
> > + top_clk_data);
> > +
> > + of_clk_add_provider(node, of_clk_src_onecell_get, top_clk_data);
> > +}
> > +
> > +CLK_OF_DECLARE_DRIVER(mt8183_topckgen, "mediatek,mt8183-topckgen",
> > + clk_mt8183_top_init_early);
> > +
> > static int clk_mt8183_top_probe(struct platform_device *pdev)
> > {
> > struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> > void __iomem *base;
> > - struct clk_onecell_data *clk_data;
> > struct device_node *node = pdev->dev.of_node;
> >
> > base = devm_ioremap_resource(&pdev->dev, res);
> > if (IS_ERR(base))
> > return PTR_ERR(base);
> >
> > - clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
> > + if (!top_clk_data)
> > + top_clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
>
> And then this can be removed because top_clk_data must be allocated at
> this point.
>

I'll fix in next version. Many thanks.

>
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