[2/3] ASoC: SOF: Intel: mtl: add core_get & put support on MeterLake platforms

Commit Message

Peter Ujfalusi May 23, 2023, 10:32 a.m. UTC

From: Rander Wang <[e-mail]>

In core_get case, driver can power up primary core and don't need to send
ipc message to fw. Non-primary core should be powered up by fw with ipc
message.

In core_put case, driver should first send ipc message to fw to disable dsp
core then power down primary core if the target is primary core.

Signed-off-by: Rander Wang <[e-mail]>
Reviewed-by: Pierre-Louis Bossart <[e-mail]>
Reviewed-by: Ranjani Sridharan <[e-mail]>
Reviewed-by: Péter Ujfalusi <[e-mail]>
Signed-off-by: Peter Ujfalusi <[e-mail]>
---
 sound/soc/sof/intel/mtl.c | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

Patch

diff --git a/sound/soc/sof/intel/mtl.c b/sound/soc/sof/intel/mtl.c
index 4788ba3b25aa..a847ae3ed4e9 100644
--- a/sound/soc/sof/intel/mtl.c
+++ b/sound/soc/sof/intel/mtl.c
@@ -624,6 +624,36 @@  static u64 mtl_dsp_get_stream_hda_link_position(struct snd_sof_dev *sdev,
 	return ((u64)llp_u << 32) | llp_l;
 }
 
+static int mtl_dsp_core_get(struct snd_sof_dev *sdev, int core)
+{
+	const struct sof_ipc_pm_ops *pm_ops = sdev->ipc->ops->pm;
+
+	if (core == SOF_DSP_PRIMARY_CORE)
+		return mtl_dsp_core_power_up(sdev, SOF_DSP_PRIMARY_CORE);
+
+	if (pm_ops->set_core_state)
+		return pm_ops->set_core_state(sdev, core, true);
+
+	return 0;
+}
+
+static int mtl_dsp_core_put(struct snd_sof_dev *sdev, int core)
+{
+	const struct sof_ipc_pm_ops *pm_ops = sdev->ipc->ops->pm;
+	int ret;
+
+	if (pm_ops->set_core_state) {
+		ret = pm_ops->set_core_state(sdev, core, false);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (core == SOF_DSP_PRIMARY_CORE)
+		return mtl_dsp_core_power_down(sdev, SOF_DSP_PRIMARY_CORE);
+
+	return 0;
+}
+
 /* Meteorlake ops */
 struct snd_sof_dsp_ops sof_mtl_ops;
 EXPORT_SYMBOL_NS(sof_mtl_ops, SND_SOC_SOF_INTEL_HDA_COMMON);
@@ -660,7 +690,8 @@  int sof_mtl_ops_init(struct snd_sof_dev *sdev)
 	sof_mtl_ops.parse_platform_ext_manifest = NULL;
 
 	/* dsp core get/put */
-	/* TODO: add core_get and core_put */
+	sof_mtl_ops.core_get = mtl_dsp_core_get;
+	sof_mtl_ops.core_put = mtl_dsp_core_put;
 
 	sof_mtl_ops.get_stream_position = mtl_dsp_get_stream_hda_link_position;