linux-kernel - Re: [PATCH v4 2/2] ASoC: spacemit: add i2s support for K1 SoC

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Message-ID: <d1d965c4-f0f4-4b09-b5c3-5925d5f7ce1b@sirena.org.uk>
Date: Mon, 13 Oct 2025 13:05:58 +0100
From: Mark Brown <broonie@...nel.org>
To: Troy Mitchell <troy.mitchell@...ux.spacemit.com>
Cc: Liam Girdwood <lgirdwood@...il.com>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Yixun Lan <dlan@...too.org>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
	Philipp Zabel <p.zabel@...gutronix.de>, linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
	spacemit@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Jinmei Wei <weijinmei@...ux.spacemit.com>
Subject: Re: [PATCH v4 2/2] ASoC: spacemit: add i2s support for K1 SoC

On Sun, Sep 21, 2025 at 04:52:17PM +0800, Troy Mitchell wrote:

> +	case SND_SOC_DAIFMT_DSP_A:
> +	case SND_SOC_DAIFMT_DSP_B:
> +		snd_pcm_hw_constraint_minmax(substream->runtime,
> +					     SNDRV_PCM_HW_PARAM_CHANNELS,
> +					     1, 1);
> +		snd_pcm_hw_constraint_mask64(substream->runtime,
> +					     SNDRV_PCM_HW_PARAM_FORMAT,
> +					     SNDRV_PCM_FMTBIT_S32_LE);
> +		break;

The handling for one of these is buggy, DSP A and B are distinct modes
but throughout the driver they're handled identically AFAICT.

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