ASoC: SOF: ipc4-pcm: Expose sof_ipc4_set_pipeline_state()

Expose the sof_ipc4_set_pipeline_state() function as it will be used in
the IPC4-specific BE DAI driver ops.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220609032643.916882-16-ranjani.sridharan@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/ipc4-pcm.c

@@ -13,7 +13,7 @@
 #include "ipc4-priv.h"
 #include "ipc4-topology.h"
 
-static int sof_ipc4_set_pipeline_state(struct snd_sof_dev *sdev, u32 id, u32 state)
+int sof_ipc4_set_pipeline_state(struct snd_sof_dev *sdev, u32 id, u32 state)
 {
 	struct sof_ipc4_msg msg = {{ 0 }};
 	u32 primary;
@@ -30,6 +30,7 @@ static int sof_ipc4_set_pipeline_state(struct snd_sof_dev *sdev, u32 id, u32 sta
 
 	return sof_ipc_tx_message(sdev->ipc, &msg, 0, NULL, 0);
 }
+EXPORT_SYMBOL(sof_ipc4_set_pipeline_state);
 
 static int sof_ipc4_trigger_pipelines(struct snd_soc_component *component,
 				      struct snd_pcm_substream *substream, int state)

sound/soc/sof/ipc4-priv.h

@@ -44,4 +44,6 @@ extern const struct sof_ipc_tplg_ops ipc4_tplg_ops;
 extern const struct sof_ipc_tplg_control_ops tplg_ipc4_control_ops;
 extern const struct sof_ipc_pcm_ops ipc4_pcm_ops;
 
+int sof_ipc4_set_pipeline_state(struct snd_sof_dev *sdev, u32 id, u32 state);
+
 #endif