From: "Amadeusz Sławiński" <amadeuszx.slawinski@linux.intel.com>
To: Jerome Brunet <jbrunet@baylibre.com>,
Mark Brown <broonie@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Takashi Iwai <tiwai@suse.com>, Jaroslav Kysela <perex@perex.cz>
Cc: alsa-devel@alsa-project.org, linux-sound@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] ALSA: pcm: add support for 128kHz sample rate
Date: Mon, 1 Jul 2024 10:50:02 +0200 [thread overview]
Message-ID: <326792b9-e706-4ab0-a1e8-cc48943e357d@linux.intel.com> (raw)
In-Reply-To: <20240628122429.2018059-2-jbrunet@baylibre.com>
On 6/28/2024 2:23 PM, Jerome Brunet wrote:
> The usual sample rate possible on an SPDIF link are
> 32k, 44.1k, 48k, 88.2k, 96k, 172.4k and 192k.
>
> With higher bandwidth variant, such as eARC, and the introduction of 8
> channels mode, the spdif frame rate may be multiplied by 4. This happens
> when the interface use an IEC958_SUBFRAME format.
>
> The spdif 8 channel mode rate list is:
> 128k, 176.4k, 192k, 352.8k, 384k, 705.4k and 768k.
>
> All are already supported by ASLA expect for the 128kHz one.
> Add support for it but do not insert it the SNDRV_PCM_RATE_8000_192000
> macro. Doing so would silently add 128k support to a lot of HW which
> probably do not support it.
>
> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
> ---
From what I remember the recommendation is to not add new rates, but
use SNDRV_PCM_RATE_KNOT for all rates not included already.
next prev parent reply other threads:[~2024-07-01 8:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-28 12:23 [PATCH 0/3] ALSA: update sample rate definition for eARC Jerome Brunet
2024-06-28 12:23 ` [PATCH 1/3] ALSA: pcm: add support for 128kHz sample rate Jerome Brunet
2024-06-29 23:29 ` kernel test robot
2024-06-30 6:53 ` Jerome Brunet
2024-07-01 14:04 ` Takashi Iwai
2024-06-30 1:10 ` kernel test robot
2024-07-01 8:50 ` Amadeusz Sławiński [this message]
2024-07-01 14:07 ` Takashi Iwai
2024-07-08 13:34 ` Jerome Brunet
2024-07-08 14:00 ` Takashi Iwai
2024-08-09 8:29 ` Jerome Brunet
2024-08-09 8:42 ` Takashi Iwai
2024-08-09 23:27 ` Mark Brown
2024-06-28 12:23 ` [PATCH 2/3] ALSA: IEC958 definition for consumer status channel update Jerome Brunet
2024-06-28 12:23 ` [PATCH 3/3] ASoC: spdif: extend supported rates to 768kHz Jerome Brunet
2024-06-28 12:34 ` Mark Brown
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