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Message-ID: <4823a770-f3c4-695f-5699-4c8d8179b507@linaro.org>
Date:   Sat, 6 May 2023 08:42:58 +0100
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Subject: Re: [PATCH 1/3] ALSA: pcm: add snd_pcm_add_chmap_ctls_with_prefix
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To:     Takashi Iwai <tiwai@suse.de>
Cc:     broonie@kernel.org, tiwai@suse.com, perex@perex.cz,
        lgirdwood@gmail.com, ckeepax@opensource.cirrus.com,
        kuninori.morimoto.gx@renesas.com, linux-kernel@vger.kernel.org,
        pierre-louis.bossart@linux.intel.com, alsa-devel@alsa-project.org
References: <20230505165514.4666-1-srinivas.kandagatla@linaro.org>
 <20230505165514.4666-2-srinivas.kandagatla@linaro.org>
 <87ttwqgfxh.wl-tiwai@suse.de>
From:   Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
In-Reply-To: <87ttwqgfxh.wl-tiwai@suse.de>
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On 06/05/2023 06:57, Takashi Iwai wrote:
> On Fri, 05 May 2023 18:55:12 +0200,
> Srinivas Kandagatla wrote:
>>
>> On Qualcomm SoC which has multiple Display Port controllers, using
>> snd_pcm_add_chmap_ctls() to add chmap controls from every ASoC hdmi codec
>> instance for a give card fails while adding second instance as the control
>> with same name "Playback Channel Map" already exists from the first instance.
>>
>> Fix this by adding a new api wrapper to pass ASoC component name prefix to
>> avoid such duplicate control naming.
> 
> It implies that you have conflicting PCM objects with the same PCM
> device number from the same card.  How can it be?
Thanks for the inputs, this is only issue with my local changes, Sorry 
for the noise, Please ignore this series.

I had some local changes to debug an issue around pcm device numbering 
with backend dailinks from device tree and frontend dailinks from tplg.
Will start a new thread to discuss this issue.

thanks,
srini
> 
> 
> Takashi