ASoC: SOF: Introduce a new set_pm_gate() IPC PM op

Set_pm_gate depends on ipc version. This patch defines
the ops for both IPC3 and IPC4.

Signed-off-by: Rander Wang <[email protected]>
Reviewed-by: Pierre-Louis Bossart <[email protected]>
Reviewed-by: Ranjani Sridharan <[email protected]>
Reviewed-by: Péter Ujfalusi <[email protected]>
Signed-off-by: Peter Ujfalusi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: RanderWang

sound/soc/sof/ipc3.c

@@ -1077,10 +1077,28 @@ static int sof_ipc3_ctx_restore(struct snd_sof_dev *sdev)
 	return sof_ipc3_ctx_ipc(sdev, SOF_IPC_PM_CTX_RESTORE);
 }
 
+static int sof_ipc3_set_pm_gate(struct snd_sof_dev *sdev, u32 flags)
+{
+	struct sof_ipc_pm_gate pm_gate;
+	struct sof_ipc_reply reply;
+
+	memset(&pm_gate, 0, sizeof(pm_gate));
+
+	/* configure pm_gate ipc message */
+	pm_gate.hdr.size = sizeof(pm_gate);
+	pm_gate.hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE;
+	pm_gate.flags = flags;
+
+	/* send pm_gate ipc to dsp */
+	return sof_ipc_tx_message_no_pm(sdev->ipc, &pm_gate, sizeof(pm_gate),
+					&reply, sizeof(reply));
+}
+
 static const struct sof_ipc_pm_ops ipc3_pm_ops = {
 	.ctx_save = sof_ipc3_ctx_save,
 	.ctx_restore = sof_ipc3_ctx_restore,
 	.set_core_state = sof_ipc3_set_core_state,
+	.set_pm_gate = sof_ipc3_set_pm_gate,
 };
 
 const struct sof_ipc_ops ipc3_ops = {

sound/soc/sof/ipc4.c

@@ -656,9 +656,22 @@ static int sof_ipc4_ctx_save(struct snd_sof_dev *sdev)
 	return sof_ipc4_set_core_state(sdev, SOF_DSP_PRIMARY_CORE, false);
 }
 
+static int sof_ipc4_set_pm_gate(struct snd_sof_dev *sdev, u32 flags)
+{
+	struct sof_ipc4_msg msg = {{0}};
+
+	msg.primary = SOF_IPC4_MSG_TYPE_SET(SOF_IPC4_MOD_SET_D0IX);
+	msg.primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);
+	msg.primary |= SOF_IPC4_MSG_TARGET(SOF_IPC4_MODULE_MSG);
+	msg.extension = flags;
+
+	return sof_ipc4_tx_msg(sdev, &msg, 0, NULL, 0, true);
+}
+
 static const struct sof_ipc_pm_ops ipc4_pm_ops = {
 	.ctx_save = sof_ipc4_ctx_save,
 	.set_core_state = sof_ipc4_set_core_state,
+	.set_pm_gate = sof_ipc4_set_pm_gate,
 };
 
 static int sof_ipc4_init(struct snd_sof_dev *sdev)

sound/soc/sof/sof-priv.h

@@ -425,11 +425,13 @@ struct sof_ipc_fw_tracing_ops {
  * @ctx_save:		Optional function pointer for context save
  * @ctx_restore:	Optional function pointer for context restore
  * @set_core_state:	Optional function pointer for turning on/off a DSP core
+ * @set_pm_gate:	Optional function pointer for pm gate settings
  */
 struct sof_ipc_pm_ops {
 	int (*ctx_save)(struct snd_sof_dev *sdev);
 	int (*ctx_restore)(struct snd_sof_dev *sdev);
 	int (*set_core_state)(struct snd_sof_dev *sdev, int core_idx, bool on);
+	int (*set_pm_gate)(struct snd_sof_dev *sdev, u32 flags);
 };
 
 /**