diff options
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/sof/intel/hda-dsp.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c index 4a40944acaef..89961397010a 100644 --- a/sound/soc/sof/intel/hda-dsp.c +++ b/sound/soc/sof/intel/hda-dsp.c @@ -696,12 +696,35 @@ int hda_dsp_resume(struct snd_sof_dev *sdev) .state = SOF_DSP_PM_D0, .substate = SOF_HDA_DSP_PM_D0I0, }; +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + struct hdac_bus *bus = sof_to_bus(sdev); + struct hdac_ext_link *hlink = NULL; +#endif int ret; /* resume from D0I3 */ if (sdev->dsp_power_state.state == SOF_DSP_PM_D0) { hda_codec_i915_display_power(sdev, true); +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + /* power up links that were active before suspend */ + list_for_each_entry(hlink, &bus->hlink_list, list) { + if (hlink->ref_count) { + ret = snd_hdac_ext_bus_link_power_up(hlink); + if (ret < 0) { + dev_dbg(sdev->dev, + "error %x in %s: failed to power up links", + ret, __func__); + return ret; + } + } + } + + /* set up CORB/RIRB buffers if was on before suspend */ + if (bus->cmd_dma_state) + snd_hdac_bus_init_cmd_io(bus); +#endif + /* Set DSP power state */ ret = snd_sof_dsp_set_power_state(sdev, &target_state); if (ret < 0) { @@ -808,6 +831,21 @@ int hda_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state) HDA_VS_INTEL_EM2_L1SEN, HDA_VS_INTEL_EM2_L1SEN); +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + /* stop the CORB/RIRB DMA if it is On */ + if (bus->cmd_dma_state) + snd_hdac_bus_stop_cmd_io(bus); + + /* no link can be powered in s0ix state */ + ret = snd_hdac_ext_bus_link_power_down_all(bus); + if (ret < 0) { + dev_dbg(sdev->dev, + "error %d in %s: failed to power down links", + ret, __func__); + return ret; + } +#endif + /* enable the system waking up via IPC IRQ */ enable_irq_wake(pci->irq); pci_save_state(pci); |