linux-kernel - Re: [PATCH 3/4] ASoC: audio-graph-card2: parse symmetric-clock-roles property

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Date:   Mon, 5 Jun 2023 00:35:56 +0000
From:   Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To:     Alvin Šipraga <alvin@...s.dk>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Alvin Šipraga <alsi@...g-olufsen.dk>,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] ASoC: audio-graph-card2: parse symmetric-clock-roles property


Hi Alvin

> --- a/sound/soc/generic/audio-graph-card2.c
> +++ b/sound/soc/generic/audio-graph-card2.c
(snip)
>  	/*
>  	 * convert bit_frame
>  	 * We need to flip clock_provider if it was CPU node,
>  	 * because it is Codec base.
>  	 */
>  	daiclk = snd_soc_daifmt_clock_provider_from_bitmap(bit_frame);
> -	if (is_cpu_node)
> +	if (is_cpu_node && !dai_link->symmetric_clock_roles)
>  		daiclk = snd_soc_daifmt_clock_provider_flipped(daiclk);
>  
>  	dai_link->dai_fmt	= daifmt | daiclk;

Hmm ? I'm confusing
[2/4] patch handling fliping, and [3/4] also handling fliping.
Nothing changed ?

Current SND_SOC_DAIFMT_xx_xx are very confusable,
framework and driver are different (flipped).
and also, audio-graph-card2 is using intuitive DT settings
(need flip for CPU).

Thank you for your help !!

Best regards
---
Kuninori Morimoto