linux-kernel - Re: [PATCH v6 3/3] clk: Add Ingenic JZ4755 CGU driver

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Date:   Tue, 01 Nov 2022 12:22:14 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Siarhei Volkau <lis8215@...il.com>,
        Siarhei Volkau <lis8215@...il.com>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org
Subject: Re: [PATCH v6 3/3] clk: Add Ingenic JZ4755 CGU driver

Quoting Paul Cercueil (2022-10-28 00:48:35)
> Hi Stephen,
> 
> Le jeu. 27 oct. 2022 � 14:57:14 -0700, Stephen Boyd <sboyd@...nel.org> 
> a �crit :
> > Quoting Siarhei Volkau (2022-10-27 12:20:23)
> >>  diff --git a/drivers/clk/ingenic/jz4755-cgu.c 
> >> b/drivers/clk/ingenic/jz4755-cgu.c
> >>  new file mode 100644
> >>  index 000000000..d2eb3ae0c
> >>  --- /dev/null
> >>  +++ b/drivers/clk/ingenic/jz4755-cgu.c
> >>  @@ -0,0 +1,346 @@
> > [...]
> >>  +static void __init jz4755_cgu_init(struct device_node *np)
> >>  +{
> >>  +       int retval;
> >>  +
> >>  +       cgu = ingenic_cgu_new(jz4755_cgu_clocks,
> >>  +                             ARRAY_SIZE(jz4755_cgu_clocks), np);
> >>  +       if (!cgu) {
> >>  +               pr_err("%s: failed to initialise CGU\n", __func__);
> >>  +               return;
> >>  +       }
> >>  +
> >>  +       retval = ingenic_cgu_register_clocks(cgu);
> >>  +       if (retval)
> >>  +               pr_err("%s: failed to register CGU Clocks\n", 
> >> __func__);
> >>  +
> >>  +       ingenic_cgu_register_syscore_ops(cgu);
> >>  +}
> >>  +CLK_OF_DECLARE_DRIVER(jz4755_cgu, "ingenic,jz4755-cgu", 
> >> jz4755_cgu_init);
> > 
> > Is there another driver that probes this device? 
> > CLK_OF_DECLARE_DRIVER()
> > is for the situation where we want to probe this device again with
> > another platform driver. Please add a comment indicating what that 
> > other
> > driver is.
> 
> See: 03d570e1a4dc ("clk: ingenic: Use CLK_OF_DECLARE_DRIVER macro")
> 

Does that mean this is also a simple-mfd?