linux-kernel - Re: [PATCH 1/2] dt-bindings: sound: ep93xx: Add I2S and AC'97 descriptions

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Date:   Wed, 15 Feb 2023 13:16:48 -0600
From:   Rob Herring <robh@...nel.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        devicetree@...r.kernel.org,
        Hartley Sweeten <hsweeten@...ionengravers.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: sound: ep93xx: Add I2S and AC'97
 descriptions

On Tue, Feb 14, 2023 at 03:02:02PM +0000, Mark Brown wrote:
> On Tue, Feb 14, 2023 at 03:26:14PM +0100, Alexander Sverdlin wrote:
> > On Tue, 2023-02-14 at 15:11 +0100, Krzysztof Kozlowski wrote:
> 
> > > OK, but then I like the example - if datasheet would use name
> > > "clk_clk_this_is_clk" would you still find it meaningful?
> 
> > > Every clock input in clocks is a clock. There is usually no need to say
> > > that a clock is a clock...
> 
> > I see you point, but this is legacy code (sound/soc/cirrus/ep93xx-i2s.c)
> > which took these names back in platform data times... I also see that
> > rather majority of *i2s*.yaml use something "*clk", so maybe it could
> > be accepted for legacy code?
> 
> Even ignoring the whole legacy thing these are industry standard
> names for the clocks - they are pretty much universally named and
> referred to with the clk suffix.  I can't see what removing it
> would accomplish other than reducing clarity.

Agreed.

If a clock is called "Nclk" then I think that is fine. If it is 
foo_bar_clk, then yes, 'foo_bar' is preferred.

Rob