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From: Takashi Iwai <tiwai@suse.de>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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
Subject: Re: [PATCH 1/3] ALSA: pcm: add snd_pcm_add_chmap_ctls_with_prefix
Date: Sat, 06 May 2023 07:57:46 +0200	[thread overview]
Message-ID: <87ttwqgfxh.wl-tiwai@suse.de> (raw)
In-Reply-To: <20230505165514.4666-2-srinivas.kandagatla@linaro.org>

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?


Takashi

WARNING: multiple messages have this Message-ID (diff)
From: Takashi Iwai <tiwai@suse.de>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: broonie@kernel.org, tiwai@suse.com, 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
Subject: Re: [PATCH 1/3] ALSA: pcm: add snd_pcm_add_chmap_ctls_with_prefix
Date: Sat, 06 May 2023 07:57:46 +0200	[thread overview]
Message-ID: <87ttwqgfxh.wl-tiwai@suse.de> (raw)
In-Reply-To: <20230505165514.4666-2-srinivas.kandagatla@linaro.org>

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?


Takashi

  reply	other threads:[~2023-05-06  5:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-05 16:55 [PATCH 0/3] ASoC: hdmi-codec: add component name prefix to controls Srinivas Kandagatla
2023-05-05 16:55 ` Srinivas Kandagatla
2023-05-05 16:55 ` [PATCH 1/3] ALSA: pcm: add snd_pcm_add_chmap_ctls_with_prefix Srinivas Kandagatla
2023-05-05 16:55   ` Srinivas Kandagatla
2023-05-06  5:57   ` Takashi Iwai [this message]
2023-05-06  5:57     ` Takashi Iwai
2023-05-06  7:42     ` Srinivas Kandagatla
2023-05-06  7:42       ` Srinivas Kandagatla
2023-05-05 16:55 ` [PATCH 2/3] ASoC: hdmi-codec: use snd_pcm_add_chmap_ctls_with_prefix to add controls Srinivas Kandagatla
2023-05-05 16:55   ` Srinivas Kandagatla
2023-05-05 16:55 ` [PATCH 3/3] ASoC: hdmi-codec: use snd_soc_cnew " Srinivas Kandagatla
2023-05-05 16:55   ` Srinivas Kandagatla

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