Hi,
Morimoto-san pointed out in a private thread that the davinci-i2s driver is using snd_soc_rtdcom_lookup(), which is should not really.
It took a while to get access to a daVinci board which uses McBSP, but eventually I got access to a remote dm644x-evm and dma365-evm.
Initially the audio was not even probing on them (fixes sent for mach-davinci), but then the driver was still crashing and not behaving correctly.
With the 4 patch dm644x-evm have working audio and the offending snd_soc_rtdcom_lookup() is gone from the driver. dm365-evm still have some issues regarding to EDMA, but it looks like a system issue which can be fixed later.
Regards, Peter --- Peter Ujfalusi (4): ASoC: ti: davinci-i2s: Add S32_LE as support format ASoC: ti: davinci-i2s: Move the XSYNCERR workaround to .prepare callback ASoC: ti: edma-pcm: Fix for legacy dma_slave_map based channel lookup ASoC: ti: davinci-evm: Do not fail if the dai_set_sysclk returns -ENOTSUPP
sound/soc/ti/davinci-evm.c | 2 +- sound/soc/ti/davinci-i2s.c | 90 +++++++++++++++++--------------------- sound/soc/ti/edma-pcm.c | 17 ++++++- 3 files changed, 57 insertions(+), 52 deletions(-)