From: Daniel Baluta daniel.baluta@nxp.com
This is identical with change for Intel platforms done with commit 8c05246c0b58 ("ASoC: SOF: Intel: add min/max channels for SSP on Baytrail/Broadwell") and fixes a regression on i.MX8/i.MX8M:
[ 25.705750] esai-Codec: ASoC: no backend playback stream [ 27.923378] esai-Codec: ASoC: no users playback at close - state
This is root-caused to the introduction of the DAI capability checks with snd_soc_dai_stream_valid(). Its use in soc-pcm.c makes it a requirement for all DAIs to report at least a non-zero min_channels field.
Fixes: 9b5db059366ae2 ("ASoC: soc-pcm: dpcm: Only allow playback/capture if supported") Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Signed-off-by: Daniel Baluta daniel.baluta@nxp.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/imx/imx8.c | 8 ++++++++ sound/soc/sof/imx/imx8m.c | 8 ++++++++ 2 files changed, 16 insertions(+)
diff --git a/sound/soc/sof/imx/imx8.c b/sound/soc/sof/imx/imx8.c index 63f9c20a1bac..a4fa8451d8cb 100644 --- a/sound/soc/sof/imx/imx8.c +++ b/sound/soc/sof/imx/imx8.c @@ -375,6 +375,14 @@ static int imx8_ipc_pcm_params(struct snd_sof_dev *sdev, static struct snd_soc_dai_driver imx8_dai[] = { { .name = "esai-port", + .playback = { + .channels_min = 1, + .channels_max = 8, + }, + .capture = { + .channels_min = 1, + .channels_max = 8, + }, }, };
diff --git a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c index fa86a9e2990f..287114a37688 100644 --- a/sound/soc/sof/imx/imx8m.c +++ b/sound/soc/sof/imx/imx8m.c @@ -240,6 +240,14 @@ static int imx8m_ipc_pcm_params(struct snd_sof_dev *sdev, static struct snd_soc_dai_driver imx8m_dai[] = { { .name = "sai-port", + .playback = { + .channels_min = 1, + .channels_max = 32, + }, + .capture = { + .channels_min = 1, + .channels_max = 32, + }, }, };