linux-kernel - Re: [PATCH v11 03/38] clk: ep93xx: add DT support for Cirrus EP93xx

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Message-ID: <02d50cb52a0b73fb937fa2121bac6812592826d9.camel@maquefel.me>
Date: Fri, 06 Sep 2024 15:08:31 +0300
From: Nikita Shubin <nikita.shubin@...uefel.me>
To: Stephen Boyd <sboyd@...nel.org>, Michael Turquette
 <mturquette@...libre.com>,  Nikita Shubin via B4 Relay
 <devnull+nikita.shubin.maquefel.me@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v11 03/38] clk: ep93xx: add DT support for Cirrus EP93xx

On Thu, 2024-09-05 at 13:50 -0700, Stephen Boyd wrote:
> Quoting Nikita Shubin (2024-09-02 06:31:59)
> > On Fri, 2024-08-30 at 15:27 -0700, Stephen Boyd wrote:
> > > Quoting Nikita Shubin (2024-08-30 02:23:12)
> > > > 
> > > > Indeed REGMAP is selected by COMMON_CLK, MFD_SYSCON not
> > > > required,
> > > > but
> > > > it needs AUXILIARY_BUS.
> > > 
> > > I don't see REGMAP selected by COMMON_CLK. Did I miss something?
> > 
> > Indeed REGMAP is selected by COMMON_CLK_MESON_REGMAP not COMMON_CLK
> > on
> > make tinyconfig + COMPILE_TEST.
> 
> The meson driver isn't used here?

This is purely from ARCH=arm make tinyconfig - i use it only with
COMPILE_TEST for testing.

> 
> > 
> > Then we require REGMAP because we are using regmap_read() in clk
> > driver.
> 
> I think you're supposed to select REGMAP_<BUS> config option, not the
> toplevel REGMAP option. For example, if you're using mmio, then
> select
> REGMAP_MMIO.

Yes this makes sense, REGMAP_MMIO it is.