Unverified Commit 1c91e927 authored by Rander Wang's avatar Rander Wang Committed by Mark Brown
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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: default avatarRander Wang <rander.wang@intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: default avatarPéter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230214103345.30669-4-peter.ujfalusi@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 3c168838

sound/soc/sof/ipc4.c

+11 −0
Original line number Diff line number Diff line
@@ -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);