linux-kernel - Re: [PATCH] soundwire: stream: only change state if needed

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Message-ID: <c1e5dc89-a069-a427-4912-89d90ecc0334@linaro.org>
Date:   Tue, 17 Mar 2020 13:04:17 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org, tiwai@...e.de, broonie@...nel.org,
        vkoul@...nel.org, gregkh@...uxfoundation.org, jank@...ence.com,
        slawomir.blauciak@...el.com,
        Bard liao <yung-chuan.liao@...ux.intel.com>,
        Rander Wang <rander.wang@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Hui Wang <hui.wang@...onical.com>,
        Sanyog Kale <sanyog.r.kale@...el.com>
Subject: Re: [PATCH] soundwire: stream: only change state if needed



On 17/03/2020 12:22, Pierre-Louis Bossart wrote:
> 
> The change below would be an error case for Intel, so it's probably 
> better if we go with your suggestion. You have a very specific state 
> handling due to your power amps and it's probably better to keep it 
> platform-specific.

Just trying to understand, why would it be error for Intel case?

IMO, If stream state is SDW_STREAM_ENABLED that also implicit that its 
prepared too. Similar thing with SDW_STREAM_DEPREPARED.
Isn't it?

--srini