linux-kernel - Re: [PATCH 1/4] clk: renesas: rzg2l: Simplify rzg2l_cpg_assert() and rzg2l_cpg

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Message-ID: <CAMuHMdX3xesNr7VXjH75jfaQ=aXrzNhAhpPkdN6LiC3wY8sX3Q@mail.gmail.com>
Date: Tue, 2 Sep 2025 14:12:50 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
Cc: tomm.merciai@...il.com, linux-renesas-soc@...r.kernel.org, 
	biju.das.jz@...renesas.com, Michael Turquette <mturquette@...libre.com>, 
	Stephen Boyd <sboyd@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>, linux-clk@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] clk: renesas: rzg2l: Simplify rzg2l_cpg_assert() and rzg2l_cpg_deassert()

Hi Tommaso,

On Wed, 20 Aug 2025 at 12:05, Tommaso Merciai
<tommaso.merciai.xr@...renesas.com> wrote:
> Combine common code from rzg2l_cpg_assert() and rzg2l_cpg_deassert() into a
> new __rzg2l_cpg_assert() helper to avoid code duplication. This reduces
> maintenance effort and improves code clarity.
>
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>

Thanks for your patch!

> --- a/drivers/clk/renesas/rzg2l-cpg.c
> +++ b/drivers/clk/renesas/rzg2l-cpg.c

> @@ -1664,37 +1668,20 @@ static int rzg2l_cpg_assert(struct reset_controller_dev *rcdev,
>         }
>
>         return readl_poll_timeout_atomic(priv->base + reg, value,
> -                                        value & mask, 10, 200);
> +                                        assert ? (value & mask) : !(value & mask),

This can be simplified to "assert == !!(value & mask)".
Do you like that?

> +                                        10, 200);
> +}

The rest LGTM, so
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