4.19-stable review patch. If anyone has any objections, please let me know.
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From: Neil Armstrong narmstrong@baylibre.com
[ Upstream commit c26830b6c5c534d273ce007eb33d5a2d2ad4e969 ]
This reverts commit bf5e4887eeddb48480568466536aa08ec7f179a5 because the following and required commit e138233e56e9829e65b6293887063a1a3ccb2d68 causes the following system crash when using audio: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:282
Fixes: bf5e4887eeddb4848056846 ("ASoC: meson: axg-tdm-interface: manage formatters in trigger") Reported-by: Dmitry Shmidt dimitrysh@google.com Signed-off-by: Neil Armstrong narmstrong@baylibre.com Acked-by: Jerome Brunet jbrunet@baylibre.com Link: https://lore.kernel.org/r/20220421155725.2589089-1-narmstrong@baylibre.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/meson/axg-tdm-interface.c | 26 +++++--------------------- 1 file changed, 5 insertions(+), 21 deletions(-)
diff --git a/sound/soc/meson/axg-tdm-interface.c b/sound/soc/meson/axg-tdm-interface.c index 05d63cd7ac8ba..2a7ea41fc49e5 100644 --- a/sound/soc/meson/axg-tdm-interface.c +++ b/sound/soc/meson/axg-tdm-interface.c @@ -343,29 +343,13 @@ static int axg_tdm_iface_hw_free(struct snd_pcm_substream *substream, return 0; }
-static int axg_tdm_iface_trigger(struct snd_pcm_substream *substream, - int cmd, +static int axg_tdm_iface_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { - struct axg_tdm_stream *ts = - snd_soc_dai_get_dma_data(dai, substream); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - axg_tdm_stream_start(ts); - break; - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - case SNDRV_PCM_TRIGGER_STOP: - axg_tdm_stream_stop(ts); - break; - default: - return -EINVAL; - } + struct axg_tdm_stream *ts = snd_soc_dai_get_dma_data(dai, substream);
- return 0; + /* Force all attached formatters to update */ + return axg_tdm_stream_reset(ts); }
static int axg_tdm_iface_remove_dai(struct snd_soc_dai *dai) @@ -405,8 +389,8 @@ static const struct snd_soc_dai_ops axg_tdm_iface_ops = { .set_fmt = axg_tdm_iface_set_fmt, .startup = axg_tdm_iface_startup, .hw_params = axg_tdm_iface_hw_params, + .prepare = axg_tdm_iface_prepare, .hw_free = axg_tdm_iface_hw_free, - .trigger = axg_tdm_iface_trigger, };
/* TDM Backend DAIs */