linux-kernel - Re: [PATCH RFC v2 3/6] ASoC: soc: qcom: sc8280xp: add support for I2S clocks

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Message-Id: <DDDR31N2P498.3FYKHZRLUS54G@linaro.org>
Date: Thu, 09 Oct 2025 12:21:37 +0100
From: "Alexey Klimov" <alexey.klimov@...aro.org>
To: "Neil Armstrong" <neil.armstrong@...aro.org>, "Srinivas Kandagatla"
 <srini@...nel.org>, "Liam Girdwood" <lgirdwood@...il.com>, "Mark Brown"
 <broonie@...nel.org>, "Jaroslav Kysela" <perex@...ex.cz>, "Takashi Iwai"
 <tiwai@...e.com>, "Rob Herring" <robh@...nel.org>, "Krzysztof Kozlowski"
 <krzk+dt@...nel.org>, "Conor Dooley" <conor+dt@...nel.org>, "Bjorn
 Andersson" <andersson@...nel.org>, "Konrad Dybcio" <konradybcio@...nel.org>
Cc: <linux-sound@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
 <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH RFC v2 3/6] ASoC: soc: qcom: sc8280xp: add support for
 I2S clocks

On Wed Oct 8, 2025 at 7:56 PM BST, Neil Armstrong wrote:
> Add support for getting the I2S clocks used for the MI2S
> interfaces, and enable/disable the clocks on the PCM
> startup and shutdown card callbacks.
>
> The rate can be easily calculated since the card forces 48Hz,
> 2 channels at 16bit slot size.

48 kHz?

48 Hz rate will result in too narrow analog range to reconstruct anything
apart from beeps probably.

Best regards,
Alexey