diff options
| author | Peter Ujfalusi <peter.ujfalusi@linux.intel.com> | 2022-07-12 15:09:35 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-07-12 13:45:05 +0100 |
| commit | 57724db17a946476f11c1b1be9750bc0cf877adc (patch) | |
| tree | 6d64176068b1e313e814ecc74cea25ebd0d1e53e /sound/soc/sof/intel/hda-dsp.c | |
| parent | 388fe2b8a3a0f597b2680e8f1ef5324e1db76ed2 (diff) | |
ASoC: SOF: Intel: hda: Introduce skip_imr_boot flag
Use a dedicated flag instead of directly checking the
sdev->system_suspend_target to decide if we need to skip IMR boot due to
too deep sleep state where the memory used for IMR booting will not retain
its content.
The skip_imr_boot flag will be set true during suspend if the target state
is deeper than S3 and reset back to false on successful boot to re-enable
IMR booting in shallower sleep states.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220712120936.28072-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/intel/hda-dsp.c')
| -rw-r--r-- | sound/soc/sof/intel/hda-dsp.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c index 2afaee91b982..eddfd77ad90f 100644 --- a/sound/soc/sof/intel/hda-dsp.c +++ b/sound/soc/sof/intel/hda-dsp.c @@ -617,6 +617,13 @@ static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend) #endif int ret, j; + /* + * The memory used for IMR boot loses its content in deeper than S3 state + * We must not try IMR boot on next power up (as it will fail). + */ + if (sdev->system_suspend_target > SOF_SUSPEND_S3) + hda->skip_imr_boot = true; + hda_sdw_int_enable(sdev, false); /* disable IPC interrupts */ |