diff options
Diffstat (limited to 'sound/soc/sof')
| -rw-r--r-- | sound/soc/sof/pm.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c index 99e4e6ffff74..560a937e0484 100644 --- a/sound/soc/sof/pm.c +++ b/sound/soc/sof/pm.c @@ -430,12 +430,58 @@ EXPORT_SYMBOL(snd_sof_set_d0_substate); int snd_sof_resume(struct device *dev) { + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + int ret; + + if (sdev->s0_suspend) { + /* resume from D0I3 */ + dev_dbg(sdev->dev, "DSP will exit from D0i3...\n"); + ret = snd_sof_set_d0_substate(sdev, SOF_DSP_D0I0); + if (ret == -ENOTSUPP) { + /* fallback to resume from D3 */ + dev_dbg(sdev->dev, "D0i3 not supported, fall back to resume from D3...\n"); + goto d3_resume; + } else if (ret < 0) { + dev_err(sdev->dev, "error: failed to exit from D0I3 %d\n", + ret); + return ret; + } + + /* platform-specific resume from D0i3 */ + return snd_sof_dsp_resume(sdev); + } + +d3_resume: + /* resume from D3 */ return sof_resume(dev, false); } EXPORT_SYMBOL(snd_sof_resume); int snd_sof_suspend(struct device *dev) { + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + int ret; + + if (sdev->s0_suspend) { + /* suspend to D0i3 */ + dev_dbg(sdev->dev, "DSP is trying to enter D0i3...\n"); + ret = snd_sof_set_d0_substate(sdev, SOF_DSP_D0I3); + if (ret == -ENOTSUPP) { + /* fallback to D3 suspend */ + dev_dbg(sdev->dev, "D0i3 not supported, fall back to D3...\n"); + goto d3_suspend; + } else if (ret < 0) { + dev_err(sdev->dev, "error: failed to enter D0I3, %d\n", + ret); + return ret; + } + + /* platform-specific suspend to D0i3 */ + return snd_sof_dsp_suspend(sdev); + } + +d3_suspend: + /* suspend to D3 */ return sof_suspend(dev, false); } EXPORT_SYMBOL(snd_sof_suspend); |