ASoC: sdw-mockup: Switch to new snd_sdw_params_to_config helper

The conversion from hw_params to SoundWire config is pretty
standard as such most of the conversion can be handled by the new
snd_sdw_params_to_config helper function.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221123165432.594972-9-ckeepax@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/sdw-mockup.c

@@ -16,6 +16,7 @@
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
+#include <sound/sdw.h>
 #include <sound/soc.h>
 
 struct  sdw_mockup_priv {
@@ -80,12 +81,9 @@ static int sdw_mockup_pcm_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_component *component = dai->component;
 	struct sdw_mockup_priv *sdw_mockup = snd_soc_component_get_drvdata(component);
-	struct sdw_stream_config stream_config;
-	struct sdw_port_config port_config;
-	enum sdw_data_direction direction;
+	struct sdw_stream_config stream_config = {0};
+	struct sdw_port_config port_config = {0};
 	struct sdw_stream_data *stream;
-	int num_channels;
-	int port;
 	int ret;
 
 	stream = snd_soc_dai_get_dma_data(dai, substream);
@@ -96,22 +94,12 @@ static int sdw_mockup_pcm_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 
 	/* SoundWire specific configuration */
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		direction = SDW_DATA_DIR_RX;
-		port = 1;
-	} else {
-		direction = SDW_DATA_DIR_TX;
-		port = 8;
-	}
-
-	stream_config.frame_rate = params_rate(params);
-	stream_config.ch_count = params_channels(params);
-	stream_config.bps = snd_pcm_format_width(params_format(params));
-	stream_config.direction = direction;
+	snd_sdw_params_to_config(substream, params, &stream_config, &port_config);
 
-	num_channels = params_channels(params);
-	port_config.ch_mask = (1 << num_channels) - 1;
-	port_config.num = port;
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		port_config.num = 1;
+	else
+		port_config.num = 8;
 
 	ret = sdw_stream_add_slave(sdw_mockup->slave, &stream_config,
 				   &port_config, 1, stream->sdw_stream);