From: Jerome Brunet <jbrunet@baylibre.com>
To: Mark Brown <broonie@kernel.org>, Liam Girdwood <lgirdwood@gmail.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>,
alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
linux-amlogic@lists.infradead.org
Subject: [PATCH 0/2] ASoC: meson: axg: fix TDM channel order sync
Date: Wed, 20 Oct 2021 13:42:15 +0200 [thread overview]
Message-ID: <20211020114217.133153-1-jbrunet@baylibre.com> (raw)
On the Amlogic AXG series, the TODDR FIFO may get out of sync with the TDM
decoder if the decoder is started before the FIFO. The channel appears
shifted in memory in an unpredictable way.
To fix this, the trick is to start the FIFO before the TDM decoder. This
way the FIFO is already waiting when the 1st channel is produced and it is
correctly placed in memory.
Jerome Brunet (2):
ASoC: meson: axg-card: make links nonatomic
ASoC: meson: axg-tdm-interface: manage formatters in trigger
sound/soc/meson/axg-card.c | 1 +
sound/soc/meson/axg-tdm-interface.c | 26 +++++++++++++++++++++-----
2 files changed, 22 insertions(+), 5 deletions(-)
--
2.33.0
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next reply other threads:[~2021-10-20 11:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 11:42 Jerome Brunet [this message]
2021-10-20 11:42 ` [PATCH 1/2] ASoC: meson: axg-card: make links nonatomic Jerome Brunet
2021-10-20 11:42 ` [PATCH 2/2] ASoC: meson: axg-tdm-interface: manage formatters in trigger Jerome Brunet
2021-10-23 13:34 ` [PATCH 0/2] ASoC: meson: axg: fix TDM channel order sync Mark Brown
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