diff options
Diffstat (limited to 'sound/soc/sof/intel/hda-ctrl.c')
| -rw-r--r-- | sound/soc/sof/intel/hda-ctrl.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sound/soc/sof/intel/hda-ctrl.c b/sound/soc/sof/intel/hda-ctrl.c index 3aea36c077c9..a1037512da1f 100644 --- a/sound/soc/sof/intel/hda-ctrl.c +++ b/sound/soc/sof/intel/hda-ctrl.c @@ -158,16 +158,18 @@ void hda_dsp_ctrl_misc_clock_gating(struct snd_sof_dev *sdev, bool enable) */ int hda_dsp_ctrl_clock_power_gating(struct snd_sof_dev *sdev, bool enable) { + struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; u32 val; /* enable/disable audio dsp clock gating */ val = enable ? PCI_CGCTL_ADSPDCGE : 0; snd_sof_pci_update_bits(sdev, PCI_CGCTL, PCI_CGCTL_ADSPDCGE, val); - /* enable/disable DMI Link L1 support */ + /* disable the DMI link when requested. But enable only if it wasn't disabled previously */ val = enable ? HDA_VS_INTEL_EM2_L1SEN : 0; - snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, HDA_VS_INTEL_EM2, - HDA_VS_INTEL_EM2_L1SEN, val); + if (!enable || !hda->l1_disabled) + snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, HDA_VS_INTEL_EM2, + HDA_VS_INTEL_EM2_L1SEN, val); /* enable/disable audio dsp power gating */ val = enable ? 0 : PCI_PGCTL_ADSPPGD; |