Re: [RFC PATCH v2 18/30] drivers/clocksource: sh_tmu clocks property support.

Geert Uytterhoeven <[email protected]>
Newsgroups gmane.linux.ports.sh.devel
Message-ID <CAMuHMdV816qiWBDma-C6=Fpy71Pj=6j5a7cF9D3zeSA791KP5A@mail.gmail.com>
Hi Sato-san,

On Wed, Sep 13, 2023 at 11:29 AM Yoshinori Sato
<[email protected]> wrote:
> Signed-off-by: Yoshinori Sato <[email protected]>

> --- a/drivers/clocksource/sh_tmu.c
> +++ b/drivers/clocksource/sh_tmu.c
> @@ -537,6 +537,9 @@ static int sh_tmu_setup(struct sh_tmu_device *tmu, struct platform_device *pdev)
>
>         /* Get hold of clock. */
>         tmu->clk = clk_get(&tmu->pdev->dev, "fck");
> +       if (IS_ERR(tmu->clk) && IS_ENABLED(CONFIG_OF) && pdev->dev.of_node)
> +               /* use DeviceTree clocks property */
> +               tmu->clk = devm_clk_get(&tmu->pdev->dev, NULL);

This should not be needed.
I guess this is a workaround for the missing

            clock-names = "fck";

in arch/sh/boot/dts/sh7751.dtsi?

"make dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/timer/renesas,tmu.yaml"
would have told you ;-)

    timer@ffd80008: 'clock-names' is a required property

>         if (IS_ERR(tmu->clk)) {
>                 dev_err(&tmu->pdev->dev, "cannot get clock\n");
>                 return PTR_ERR(tmu->clk);

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

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
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