ASoC: SOF: ipc4-topology: Handle input/output audio format special case

When there is only one input/output format specified in topology, there
is no need to search for a matching format, simply pick the available
one. This is in preparation to modify and split the selection logic for
the input and output audio formats.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org

diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index 059eebf..3e59551 100644 (file)
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -1039,7 +1039,7 @@ static int sof_ipc4_init_audio_fmt(struct snd_sof_dev *sdev,
        u32 channels;
        u32 rate;
        int sample_valid_bits;
-       int i;
+       int i = 0;
 
        if (!pin_fmts) {
                dev_err(sdev->dev, "no reference formats for %s\n", swidget->widget->name);
@@ -1066,6 +1066,10 @@ static int sof_ipc4_init_audio_fmt(struct snd_sof_dev *sdev,
                return -EINVAL;
        }
 
+       /* pick the only available input format */
+       if (available_fmt->num_input_formats == 1)
+               goto in_fmt;
+
        /*
         * Search supported audio formats with pin index 0 to match rate, channels ,and
         * sample_valid_bytes from runtime params
@@ -1093,6 +1097,7 @@ static int sof_ipc4_init_audio_fmt(struct snd_sof_dev *sdev,
                return -EINVAL;
        }
 
+in_fmt:
        /* copy input format */
        if (available_fmt->num_input_formats && i < available_fmt->num_input_formats) {
                memcpy(&base_config->audio_fmt, &available_fmt->input_pin_fmts[i].audio_fmt,
@@ -1105,6 +1110,10 @@ static int sof_ipc4_init_audio_fmt(struct snd_sof_dev *sdev,
                sof_ipc4_dbg_audio_format(sdev->dev, &available_fmt->input_pin_fmts[i], 1);
        }
 
+       /* pick the only available output format */
+       if (available_fmt->num_output_formats == 1)
+               i = 0;
+
        if (available_fmt->num_output_formats && i < available_fmt->num_output_formats)
                base_config->obs = available_fmt->output_pin_fmts[i].buffer_size;