linux-kernel - Re: [PATCH] soundwire: bus: add dev_warn() messages to track UNATTACHED devices

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Date:   Thu, 10 Feb 2022 19:18:51 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Bard Liao <yung-chuan.liao@...ux.intel.com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org, srinivas.kandagatla@...aro.org,
        pierre-louis.bossart@...ux.intel.com, sanyog.r.kale@...el.com,
        bard.liao@...el.com
Subject: Re: [PATCH] soundwire: bus: add dev_warn() messages to track
 UNATTACHED devices

On 26-01-22, 09:15, Bard Liao wrote:
> From: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
> 
> In rare cases, some devices seem to lose sync and never re-attach on
> the bus. This seems to happen only when there are more than one device
> per link, which suggests either an electrical issue, a race condition
> or a state machine issue.
> 
> Add two dev_warn() messages to identify the sequence by which the
> devices become UNATTACHED.

Applied, thanks

-- 
~Vinod