[PATCH 07/19] ASoC: SOF: ipc: ops: Add support for optional init and exit callbacks

[Peter Ujfalusi <peter.ujfalusi@linux.intel.com>]

Add support for IPC specific initialization (init) and cleanup (exit)
callback.

These callbacks can be used by IPC implementation to do basic
initialization and cleanup.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Chao Song <chao.song@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
---
 sound/soc/sof/ipc.c      | 6 ++++++
 sound/soc/sof/sof-priv.h | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c
index 6ed3f9b6a0c4..30781e808a02 100644
--- a/sound/soc/sof/ipc.c
+++ b/sound/soc/sof/ipc.c
@@ -200,6 +200,9 @@ struct snd_sof_ipc *snd_sof_ipc_init(struct snd_sof_dev *sdev)
 		return NULL;
 	}
 
+	if (ops->init && ops->init(sdev))
+		return NULL;
+
 	ipc->ops = ops;
 
 	return ipc;
@@ -217,5 +220,8 @@ void snd_sof_ipc_free(struct snd_sof_dev *sdev)
 	mutex_lock(&ipc->tx_mutex);
 	ipc->disable_ipc_tx = true;
 	mutex_unlock(&ipc->tx_mutex);
+
+	if (ipc->ops->exit)
+		ipc->ops->exit(sdev);
 }
 EXPORT_SYMBOL(snd_sof_ipc_free);
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 3d70b57e4864..ea6013ab1d4a 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -443,6 +443,9 @@ struct sof_ipc_pcm_ops;
  * @fw_loader:	Pointer to Firmware Loader ops
  * @fw_tracing:	Pointer to Firmware tracing ops
  *
+ * @init:	Optional pointer for IPC related initialization
+ * @exit:	Optional pointer for IPC related cleanup
+ *
  * @tx_msg:	Function pointer for sending a 'short' IPC message
  * @set_get_data: Function pointer for set/get data ('large' IPC message). This
  *		function may split up the 'large' message and use the @tx_msg
@@ -464,6 +467,9 @@ struct sof_ipc_ops {
 	const struct sof_ipc_fw_loader_ops *fw_loader;
 	const struct sof_ipc_fw_tracing_ops *fw_tracing;
 
+	int (*init)(struct snd_sof_dev *sdev);
+	void (*exit)(struct snd_sof_dev *sdev);
+
 	int (*tx_msg)(struct snd_sof_dev *sdev, void *msg_data, size_t msg_bytes,
 		      void *reply_data, size_t reply_bytes, bool no_pm);
 	int (*set_get_data)(struct snd_sof_dev *sdev, void *data, size_t data_bytes,
-- 
2.38.0