[+cc Rafael, Pavel, linux-pm] On Sun, Mar 23, 2014 at 12:16 PM, Andreas Noever <andreas.noever@xxxxxxxxx> wrote: > The pcieport driver defines runtime_suspend and runtime_resume methods > (pcie_port_runtime_suspend/resume in portdrv_pci.c). I am trying to > trigger that code. But I cannot get power/runtime_usage to drop to > zero. > > Initially power/runtime_usage is set to 2. The 2 comes (imho) from: > pci_pm_init -> pm_runtime_forbid > local_pci_probe -> pm_runtime_get_sync > > The pm_runtime_forbid can be undone with echo auto > power/control, > but the second one seems to never go away. local_pci_probe spots the > following comment: > "If the driver supports runtime PM, it should call > pm_runtime_put_noidle() in its probe routine and > pm_runtime_get_noresume() in its remove routine." I cannot find any > such calls in the pcieport driver (or in the port service drivers). > > What am I missing? > > Thanks, > Andreas > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
