Check for if the PCM format is supported during the hw_params callback. If the profile is not supported then the userspace ALSA entity will receive an error, and can take further action. Signed-off-by: Wesley Cheng <quic_wcheng@xxxxxxxxxxx> --- sound/soc/qcom/qdsp6/q6usb.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c index d8f1bb4ec497..9a3fb3cb32b2 100644 --- a/sound/soc/qcom/qdsp6/q6usb.c +++ b/sound/soc/qcom/qdsp6/q6usb.c @@ -52,6 +52,7 @@ static int q6usb_hw_params(struct snd_pcm_substream *substream, struct q6usb_port_data *data = dev_get_drvdata(dai->dev); struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + int direction = substream->stream; struct q6afe_port *q6usb_afe; struct snd_soc_usb_device *sdev; int ret; @@ -63,6 +64,10 @@ static int q6usb_hw_params(struct snd_pcm_substream *substream, mutex_lock(&data->mutex); sdev = list_last_entry(&data->devices, struct snd_soc_usb_device, list); + ret = snd_soc_usb_find_supported_format(sdev->chip_idx, params, direction); + if (ret < 0) + goto out; + q6usb_afe = q6afe_port_get_from_id(cpu_dai->dev, USB_RX); if (IS_ERR(q6usb_afe)) goto out;
