From: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
[ Upstream commit e51f49512d98783b90799c9cc2002895ec3aa0eb ]
The set_get_data() IPC op bypasses the check for the no_pm flag as done
with the regular IPC tx_msg op. Since set_get_data should be performed
when the DSP is in D0I0, set the DSP power state to D0I0 before sending
the IPC's in sof_ipc4_set_get_data().
Fixes: ceb89acc4dc8 ("ASoC: SOF: ipc4: Add support for mandatory message handling functionality")
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230322085538.10214-1-peter.ujfalusi@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/soc/sof/ipc4.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/sound/soc/sof/ipc4.c b/sound/soc/sof/ipc4.c
index 6eaa18e27e5af..c08f3960ddd96 100644
--- a/sound/soc/sof/ipc4.c
+++ b/sound/soc/sof/ipc4.c
@@ -392,6 +392,9 @@ static int sof_ipc4_tx_msg(struct snd_sof_dev *sdev, void *msg_data, size_t msg_
static int sof_ipc4_set_get_data(struct snd_sof_dev *sdev, void *data,
size_t payload_bytes, bool set)
{
+ const struct sof_dsp_power_state target_state = {
+ .state = SOF_DSP_PM_D0,
+ };
size_t payload_limit = sdev->ipc->max_payload_size;
struct sof_ipc4_msg *ipc4_msg = data;
struct sof_ipc4_msg tx = {{ 0 }};
@@ -422,6 +425,11 @@ static int sof_ipc4_set_get_data(struct snd_sof_dev *sdev, void *data,
tx.extension |= SOF_IPC4_MOD_EXT_MSG_FIRST_BLOCK(1);
+ /* ensure the DSP is in D0i0 before sending IPC */
+ ret = snd_sof_dsp_set_power_state(sdev, &target_state);
+ if (ret < 0)
+ return ret;
+
/* Serialise IPC TX */
mutex_lock(&sdev->ipc->tx_mutex);
--
2.39.2
