ASoC: SOF: Intel: hda-loader: Clarify the cl_dsp_init() flow

Update the comment for the cl_dsp_init() to clarify what is done by the
function and use the chip->init_core_mask instead of BIT(0) when
unstalling/running the init core.

Complements: 2a68ff846164 ("ASoC: SOF: Intel: hda: Revisit IMR boot sequence")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220609085949.29062-4-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c
index 103e62b..d3ec599 100644 (file)
--- a/sound/soc/sof/intel/hda-loader.c
+++ b/sound/soc/sof/intel/hda-loader.c
@@ -95,9 +95,9 @@ out_put:
 }
 
 /*
- * first boot sequence has some extra steps. core 0 waits for power
- * status on core 1, so power up core 1 also momentarily, keep it in
- * reset/stall and then turn it off
+ * first boot sequence has some extra steps.
+ * power on all host managed cores and only unstall/run the boot core to boot the
+ * DSP then turn off all non boot cores (if any) is powered on.
  */
 static int cl_dsp_init(struct snd_sof_dev *sdev, int stream_tag, bool imr_boot)
 {
@@ -127,7 +127,7 @@ static int cl_dsp_init(struct snd_sof_dev *sdev, int stream_tag, bool imr_boot)
        snd_sof_dsp_write(sdev, HDA_DSP_BAR, chip->ipc_req, ipc_hdr);
 
        /* step 3: unset core 0 reset state & unstall/run core 0 */
-       ret = hda_dsp_core_run(sdev, BIT(0));
+       ret = hda_dsp_core_run(sdev, chip->init_core_mask);
        if (ret < 0) {
                if (hda->boot_iteration == HDA_FW_BOOT_ATTEMPTS)
                        dev_err(sdev->dev,