current_pcie_idle
/ # echo mem > /sys/power/state
[ 19.495502] PM: suspend entry (s2idle)
[ 19.496258] Filesystems sync: 0.000 seconds
[ 19.525916] Freezing user space processes ... (elapsed 0.000 seconds) done.
[ 19.527477] OOM killer disabled.
[ 19.528198] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 21.569357] brcmfmac 0000:01:00.0: brcmf_pcie_pm_enter_D3: Timeout on response for entering D3 substate
[ 21.569365] brcmfmac 0000:01:00.0: PM: pci_pm_suspend(): brcmf_pcie_pm_enter_D3+0x0/0x13c returns -5
[ 21.573252] brcmfmac 0000:01:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x28c returns -5
[ 21.575102] brcmfmac 0000:01:00.0: PM: failed to suspend async: error -5
[ 21.576543] PM: Some devices failed to suspend, or early wake event detected
[ 21.578295] OOM killer enabled.
[ 21.578916] Restarting tasks ... done.
[ 21.608250] PM: suspend exit