linux-kernel - Re: [PATCH 3/4] soundwire: intel_ace2x: Send PDI stream number during prepare

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Message-ID: <ZxCwlYBP4OUFhXR5@vaman>
Date: Thu, 17 Oct 2024 12:07:09 +0530
From: Vinod Koul <vkoul@...nel.org>
To: Bard Liao <yung-chuan.liao@...ux.intel.com>
Cc: broonie@...nel.org, tiwai@...e.de, linux-kernel@...r.kernel.org,
	linux-sound@...r.kernel.org, pierre-louis.bossart@...ux.dev,
	bard.liao@...el.com, ranjani.sridharan@...ux.intel.com
Subject: Re: [PATCH 3/4] soundwire: intel_ace2x: Send PDI stream number
 during prepare

On 16-10-24, 11:29, Bard Liao wrote:
> From: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
> 
> In the case of a prepare callback after an xrun or when the PCM is
> restarted after a call to snd_pcm_drain/snd_pcm_drop, avoid
> reprogramming the SHIM registers but send the PDI stream number so that
> the link DMA data can be set. This is needed for the case that the DMA
> data is cleared when the PCM is stopped and restarted without being
> closed.

Acked-by: Vinod Koul <vkoul@...nel.org>

-- 
~Vinod