ASoC: SOF: expose sof_route_setup()

This will be used in IPC3-specific code.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220317175044.1752400-18-ranjani.sridharan@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/sof-audio.c

@@ -204,8 +204,8 @@ int sof_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
 }
 EXPORT_SYMBOL(sof_widget_setup);
 
-static int sof_route_setup(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *wsource,
-			   struct snd_soc_dapm_widget *wsink)
+int sof_route_setup(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *wsource,
+		    struct snd_soc_dapm_widget *wsink)
 {
 	const struct sof_ipc_tplg_ops *ipc_tplg_ops = sdev->ipc->ops->tplg;
 	struct snd_sof_widget *src_widget = wsource->dobj.private;

sound/soc/sof/sof-audio.h

@@ -441,6 +441,8 @@ void sof_machine_unregister(struct snd_sof_dev *sdev, void *pdata);
 
 int sof_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
 int sof_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
+int sof_route_setup(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *wsource,
+		    struct snd_soc_dapm_widget *wsink);
 
 /* PCM */
 int sof_widget_list_setup(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm, int dir);