linux-kernel - Re: [RFC 3/3] media: atomisp: do not select COMMON

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Date:   Tue, 24 Nov 2020 16:14:41 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Chen-Yu Tsai <wens@...e.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        devel@...verdev.osuosl.org, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: Re: [RFC 3/3] media: atomisp: do not select COMMON_CLK to fix builds

Quoting Krzysztof Kozlowski (2020-11-15 09:09:50)
> COMMON_CLK is a user-selectable option with its own dependencies.  The
> most important dependency is !HAVE_LEGACY_CLK.  User-selectable drivers
> should not select COMMON_CLK because they will create a dependency cycle
> and build failures.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

This is fallout from making the COMMON_CLK symbol selectable in commit
bbd7ffdbef68 ("clk: Allow the common clk framework to be selectable").
Before then we needed drivers to select the COMMON_CLK config so that
the framework was enabled. Now that isn't necessary and any
user-selectable options should be moved to depends syntax.

Reviewed-by: Stephen Boyd <sboyd@...nel.org>