linux-kernel - Re: [PATCH 14/37] clk: renesas: rzg2l: use u32 for flag and mux

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Date:   Thu, 14 Sep 2023 15:29:40 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Claudiu <claudiu.beznea@...on.dev>
Cc:     mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        ulf.hansson@...aro.org, linus.walleij@...aro.org,
        gregkh@...uxfoundation.org, jirislaby@...nel.org,
        magnus.damm@...il.com, catalin.marinas@....com, will@...nel.org,
        prabhakar.mahadev-lad.rj@...renesas.com,
        biju.das.jz@...renesas.com, quic_bjorande@...cinc.com,
        arnd@...db.de, konrad.dybcio@...aro.org, neil.armstrong@...aro.org,
        nfraprado@...labora.com, rafal@...ecki.pl,
        wsa+renesas@...g-engineering.com,
        linux-renesas-soc@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mmc@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: Re: [PATCH 14/37] clk: renesas: rzg2l: use u32 for flag and mux_flags

Hi Claudiu,

On Tue, Sep 12, 2023 at 6:52 AM Claudiu <claudiu.beznea@...on.dev> wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
>
> flag and mux_flags are intended to keep bit masks. Use u32 type for it.
>
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Thanks for your patch!

> --- a/drivers/clk/renesas/rzg2l-cpg.h
> +++ b/drivers/clk/renesas/rzg2l-cpg.h
> @@ -92,8 +92,8 @@ struct cpg_core_clk {
>         unsigned int conf;
>         const struct clk_div_table *dtable;
>         const char * const *parent_names;
> -       int flag;
> -       int mux_flags;
> +       u32 flag;

"flag" is used for several purposes, which expected different types:
    - clk_init_data.flags is unsigned long,
    - The clk_divider_flags parameter of clk_hw_register_divider_table() is u8,
    - The clk_divider_flags parameter of __clk_hw_register_divider() is u8,
    - The flags parameter of __devm_clk_hw_register_mux() is unsigned long.

> +       u32 mux_flags;

Actually the clk_mux_flags parameter of __devm_clk_hw_register_mux() is u8.

>         int num_parents;
>  };

I guess u32 is fine for all.
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

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