linux-kernel - Re: [PATCHv4 8/9] ASoC: fsl-asoc-card: add DT property "cpu-system-clock-direction-out"

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Date: Thu, 16 May 2024 13:18:00 +0100
From: Mark Brown <broonie@...nel.org>
To: Elinor Montmasson <elinor.montmasson@...oirfairelinux.com>
Cc: Liam Girdwood <lgirdwood@...il.com>, Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shengjiu Wang <shengjiu.wang@...il.com>,
	Xiubo Li <Xiubo.Lee@...il.com>, Fabio Estevam <festevam@...il.com>,
	Nicolin Chen <nicoleotsuka@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
	linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCHv4 8/9] ASoC: fsl-asoc-card: add DT property
 "cpu-system-clock-direction-out"

On Wed, May 15, 2024 at 03:54:10PM +0200, Elinor Montmasson wrote:
> Add new optional DT property "cpu-system-clock-direction-out" to set
> sysclk direction as "out" for the CPU DAI when using the generic codec.
> It is set for both Tx and Rx.
> If not set, the direction is "in".
> The way the direction value is used is up to the CPU DAI driver
> implementation.

This feels like we should be using the clock bindings to specify the
clock input of whatever is using the output from the SoC, though that's
a lot more work.

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