linux-kernel - Re: [PATCH 13/25] ASoC: dt-bindings: meson: axg-pdm: document 'sysrate' property

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Date: Sun, 17 Mar 2024 17:27:40 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Jan Dakinevich <jan.dakinevich@...utedevices.com>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 Jerome Brunet <jbrunet@...libre.com>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>,
 Kevin Hilman <khilman@...libre.com>,
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
 Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
 Linus Walleij <linus.walleij@...aro.org>, Jaroslav Kysela <perex@...ex.cz>,
 Takashi Iwai <tiwai@...e.com>, linux-amlogic@...ts.infradead.org,
 linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 alsa-devel@...a-project.org, linux-sound@...r.kernel.org,
 linux-gpio@...r.kernel.org
Cc: kernel@...utedevices.com
Subject: Re: [PATCH 13/25] ASoC: dt-bindings: meson: axg-pdm: document
 'sysrate' property

On 17/03/2024 16:55, Jan Dakinevich wrote:
> 
> 
> On 3/15/24 13:00, Krzysztof Kozlowski wrote:
>> On 15/03/2024 00:21, Jan Dakinevich wrote:
>>> This option allow to redefine the rate of DSP system clock.
>>
>> And why is it suitable for bindings? Describe the hardware, not what you
>> want to do in the driver.
>>
> 
> What do you mean? I am adding some new property and should describe it
> in dt-bindinds. Isn't it?

No, if the property is not suitable for bindings, you should not add it
in the first place. So again: explain what sort of hardware, not driver,
problem you are solving here, so we can understand why do you need new
property. Otherwise use existing properties or no properties, because we
do not define all possible clocks in the bindings.

Let's be clear: with such commit msg explanation as you have, my answer
is: no, driver should set clock frequency and you do not need this
property at all.

Best regards,
Krzysztof