From: Keyon Jie <yang.jie@xxxxxxxxxxxxxxx>
Enable system wake up via IPC interrupt from DSP when the system is
suspending to the S0ix state, and disable it in the corresponding
resuming.
Signed-off-by: Keyon Jie <yang.jie@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/intel/hda-dsp.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
index b5070409a5e3..d23573d9e9c4 100644
--- a/sound/soc/sof/intel/hda-dsp.c
+++ b/sound/soc/sof/intel/hda-dsp.c
@@ -477,6 +477,15 @@ static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume)
int hda_dsp_resume(struct snd_sof_dev *sdev)
{
+ struct pci_dev *pci = to_pci_dev(sdev->dev);
+
+ if (sdev->s0_suspend) {
+ /* restore and disable the system wakeup */
+ pci_restore_state(pci);
+ disable_irq_wake(pci->irq);
+ return 0;
+ }
+
/* init hda controller. DSP cores will be powered up during fw boot */
return hda_resume(sdev, false);
}
@@ -509,8 +518,16 @@ int hda_dsp_runtime_suspend(struct snd_sof_dev *sdev)
int hda_dsp_suspend(struct snd_sof_dev *sdev)
{
struct hdac_bus *bus = sof_to_bus(sdev);
+ struct pci_dev *pci = to_pci_dev(sdev->dev);
int ret;
+ if (sdev->s0_suspend) {
+ /* enable the system waking up via IPC IRQ */
+ enable_irq_wake(pci->irq);
+ pci_save_state(pci);
+ return 0;
+ }
+
/* stop hda controller and power dsp off */
ret = hda_suspend(sdev, false);
if (ret < 0) {
--
2.20.1
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