From: Ben Dooks <ben.dooks@codethink.co.uk>
To: Jon Hunter <jonathanh@nvidia.com>, Dmitry Osipenko <digetx@gmail.com>
Cc: linux-kernel@lists.codethink.co.uk, alsa-devel@alsa-project.org,
Liam Girdwood <lgirdwood@gmail.com>,
Takashi Iwai <tiwai@suse.com>, Mark Brown <broonie@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Edward Cragg <edward.cragg@codethink.co.uk>,
linux-tegra@vger.kernel.org
Subject: Re: [alsa-devel] [PATCH v5 2/7] ASoC: tegra: Allow 24bit and 32bit samples
Date: Tue, 21 Jan 2020 18:15:30 +0000 [thread overview]
Message-ID: <9fc97644-b679-ef9f-41ca-1d3a5f296f3a@codethink.co.uk> (raw)
In-Reply-To: <eb90ee78-e462-401a-de60-4a9bfc2a00c4@nvidia.com>
On 07/01/2020 10:29, Jon Hunter wrote:
>
> On 05/01/2020 10:53, Ben Dooks wrote:
>>
>>
>> On 2020-01-05 01:48, Dmitry Osipenko wrote:
>>> 05.01.2020 03:04, Ben Dooks пишет:
>>>> [snip]
>>>>
>>>> I've just gone through testing.
>>>>
>>>> Some simple data tests show 16 and 32-bits work.
>>>>
>>>> The 24 bit case seems to be weird, it looks like the 24-bit expects
>>>> 24 bit samples in 32 bit words. I can't see any packing options to
>>>> do 24 bit in 24 bit, so we may have to remove 24 bit sample support
>>>> (which is a shame)
>>>>
>>>> My preference is to remove the 24-bit support and keep the 32 bit in.
>>>>
>>>
>>> Interesting.. Jon, could you please confirm that 24bit format isn't
>>> usable on T30?
>>
>> If there is an option of 24 packed into 32, then I think that would work.
>>
>> I can try testing that with raw data on Monday.
>
> I will check on this. I would have thought that S24_LE (24-bits packed
> into 32-bit elements) would be fine. Typically we don't support S24_3LE
> (24-bits in 24-bit elements).
>
I've just had to spend time fixing pulseview/sigrok's i2s handling for
this, but have run a simple test of S24_LE using a pattern generator
and the low level output looks ok.
I will test a bit more tomorrow, but I suspect something else is either
getting S24_LE wrong or we have some other issue.
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
https://www.codethink.co.uk/privacy.html
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next prev parent reply other threads:[~2020-01-21 18:16 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-18 15:48 [alsa-devel] tegra30 tdm audio support Ben Dooks
2019-10-18 15:48 ` [alsa-devel] [PATCH v5 1/7] ASoC: tegra: add a TDM configuration callback Ben Dooks
2019-10-24 15:50 ` Jon Hunter
2019-10-25 10:12 ` [alsa-devel] Applied "ASoC: tegra: add a TDM configuration callback" to the asoc tree Mark Brown
2019-10-18 15:48 ` [alsa-devel] [PATCH v5 2/7] ASoC: tegra: Allow 24bit and 32bit samples Ben Dooks
2019-10-24 15:54 ` Jon Hunter
2019-10-25 10:12 ` [alsa-devel] Applied "ASoC: tegra: Allow 24bit and 32bit samples" to the asoc tree Mark Brown
2019-11-23 21:09 ` [alsa-devel] [PATCH v5 2/7] ASoC: tegra: Allow 24bit and 32bit samples Dmitry Osipenko
2019-11-25 10:37 ` Ben Dooks
2019-11-25 17:22 ` Dmitry Osipenko
2019-11-25 17:28 ` Dmitry Osipenko
2019-12-19 21:21 ` Dmitry Osipenko
2019-12-20 10:56 ` Ben Dooks
2019-12-20 11:30 ` Jon Hunter
2019-12-20 11:38 ` Ben Dooks
2019-12-20 13:57 ` Jon Hunter
2019-12-20 14:43 ` Dmitry Osipenko
2019-12-20 14:56 ` Ben Dooks
2019-12-20 15:02 ` Dmitry Osipenko
2019-12-20 15:25 ` Ben Dooks
2019-12-20 16:40 ` Dmitry Osipenko
2019-12-20 17:06 ` Ben Dooks
2019-12-22 17:08 ` Dmitry Osipenko
2020-01-05 0:04 ` Ben Dooks
2020-01-05 1:48 ` Dmitry Osipenko
2020-01-05 10:53 ` Ben Dooks
2020-01-06 19:00 ` [alsa-devel] [Linux-kernel] " Ben Dooks
2020-01-07 1:39 ` Dmitry Osipenko
2020-01-08 11:37 ` Jon Hunter
2020-01-20 16:50 ` Dmitry Osipenko
2020-01-20 17:36 ` Ben Dooks
2020-01-23 19:38 ` Ben Dooks
2020-01-23 21:59 ` Ben Dooks
2020-01-23 22:11 ` Dmitry Osipenko
2020-01-24 4:31 ` Dmitry Osipenko
2020-01-24 16:56 ` Jon Hunter
2020-01-24 17:00 ` Mark Brown
2020-01-24 17:03 ` Ben Dooks
2020-01-24 16:50 ` Jon Hunter
2020-01-24 17:00 ` Ben Dooks
2020-01-28 7:49 ` Ricard Wanderlof
2020-01-24 17:06 ` Ben Dooks
2020-01-27 19:20 ` Dmitry Osipenko
2020-01-27 19:23 ` Dmitry Osipenko
2020-01-28 8:59 ` Ben Dooks
2020-01-28 13:19 ` Jon Hunter
2020-01-28 15:25 ` Dmitry Osipenko
2020-01-28 15:26 ` Mark Brown
2020-01-28 17:45 ` Dmitry Osipenko
2020-01-28 18:42 ` Jon Hunter
2020-01-30 8:04 ` Ben Dooks
2020-01-28 8:58 ` Ben Dooks
2020-01-28 12:13 ` Mark Brown
2020-01-28 17:42 ` Dmitry Osipenko
2020-01-28 18:19 ` Jon Hunter
2020-01-29 0:17 ` Dmitry Osipenko
2020-01-30 8:05 ` [alsa-devel] (no subject) Ben Dooks
2020-01-30 9:31 ` Clemens Ladisch
2020-01-30 9:39 ` Ben Dooks
2020-01-30 14:58 ` Clemens Ladisch
2020-01-31 10:50 ` Ben Dooks
2020-01-31 11:03 ` Clemens Ladisch
2020-01-29 10:49 ` [alsa-devel] [Linux-kernel] [PATCH v5 2/7] ASoC: tegra: Allow 24bit and 32bit samples Jon Hunter
2020-01-29 14:33 ` Jon Hunter
2020-01-29 15:22 ` Dmitry Osipenko
2020-01-30 8:17 ` Ben Dooks
2020-01-30 12:05 ` Jon Hunter
2020-01-30 12:07 ` Ben Dooks
2020-01-30 13:09 ` Jon Hunter
2020-01-30 13:10 ` Mark Brown
2020-03-19 15:32 ` Ben Dooks
2020-03-20 14:18 ` Dmitry Osipenko
2020-01-30 8:06 ` Ben Dooks
2020-01-29 17:52 ` Ben Dooks
2020-01-07 10:29 ` [alsa-devel] " Jon Hunter
2020-01-07 10:35 ` Ben Dooks
2020-01-21 18:15 ` Ben Dooks [this message]
2020-01-21 18:54 ` Dmitry Osipenko
2019-10-18 15:48 ` [alsa-devel] [PATCH v5 3/7] ASoC: tegra: i2s: Add support for more than 2 channels Ben Dooks
2019-10-24 16:12 ` Jon Hunter
2019-10-24 19:18 ` Mark Brown
2019-10-25 7:48 ` Jon Hunter
2019-10-18 15:48 ` [alsa-devel] [PATCH v5 4/7] ASoC: tegra: disable rx_fifo after disable stream Ben Dooks
2019-10-24 16:12 ` Jon Hunter
2019-10-25 10:12 ` [alsa-devel] Applied "ASoC: tegra: disable rx_fifo after disable stream" to the asoc tree Mark Brown
2019-10-18 15:48 ` [alsa-devel] [PATCH v5 5/7] ASoC: tegra: set i2s_offset to 0 for tdm Ben Dooks
2019-10-25 7:58 ` Jon Hunter
2019-10-18 15:48 ` [alsa-devel] [PATCH v5 6/7] ASoC: tegra: config fifos on hw_param changes Ben Dooks
2019-10-25 8:18 ` Jon Hunter
2019-10-18 15:48 ` [alsa-devel] [PATCH v5 7/7] ASoC: tegra: take packing settings from the audio cif_config Ben Dooks
2019-10-25 8:47 ` Jon Hunter
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