ASoC: SOF: ipc4: Wake up dsp core before sending ipc msg

The driver shall update the power state to D0i0 before sending
a generic IPC. Power-related IPCs are the exception to the rule,
they may be sent even when the power-state is D0i3

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/ipc4.c

@@ -370,6 +370,17 @@ static int sof_ipc4_tx_msg(struct snd_sof_dev *sdev, void *msg_data, size_t msg_
 	if (!msg_data)
 		return -EINVAL;
 
+	if (!no_pm) {
+		const struct sof_dsp_power_state target_state = {
+			.state = SOF_DSP_PM_D0,
+		};
+
+		/* ensure the DSP is in D0i0 before sending a new IPC */
+		ret = snd_sof_dsp_set_power_state(sdev, &target_state);
+		if (ret < 0)
+			return ret;
+	}
+
 	/* Serialise IPC TX */
 	mutex_lock(&ipc->tx_mutex);