ASoC: SOF: Intel: mtl: add core_get & put support on MeterLake platforms

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 <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230523103217.20412-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/intel/mtl.c b/sound/soc/sof/intel/mtl.c
index 46caf3c..93dc2c9 100644 (file)
--- a/sound/soc/sof/intel/mtl.c
+++ b/sound/soc/sof/intel/mtl.c
@@ -613,6 +613,36 @@ 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);
@@ -649,7 +679,8 @@ 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;