Power down Thunderbolt controllers on Macs when nothing is plugged in to save around 2W per controller. For details see the cover letter of v3: https://lkml.org/lkml/2016/12/17/56 Patches [1/7] to [3/7] need an ack from Bjorn (and possibly Rafael or Mika). Patches [4/7] to [6/7] need an ack from Rafael. Changes since v3: - Additional patch [6/8] by Chen Yu to define a DPM_DIRECT_COMPLETE macro. I had expected this to land in v4.10 but it didn't. - Rework patch [7/8] ("thunderbolt: Power down controller when idle") according to Andy Shevchenko's feedback: Drop unnecessary #ifdef pr_fmt, add explanatory comments, rename goto labels. - Fix error path if the upstream bridge cannot be found. The patches are also browseable on GitHub: https://github.com/l1k/linux/commits/thunderbolt_runpm_v4 Thanks, Lukas Chen Yu (1): PM / sleep: Define constant for direct_complete Lukas Wunner (7): PCI: Recognize Thunderbolt devices PCI: Allow runtime PM on Thunderbolt ports PCI: Don't block runtime PM for Thunderbolt host hotplug ports Revert "PM / Runtime: Remove the exported function pm_children_suspended()" PM: Make requirements of dev_pm_domain_set() more precise thunderbolt: Power down controller when idle thunderbolt: Runtime suspend NHI when idle drivers/base/power/common.c | 15 +- drivers/base/power/runtime.c | 3 +- drivers/pci/pci.c | 20 ++- drivers/pci/pci.h | 2 + drivers/pci/probe.c | 34 +++++ drivers/thunderbolt/Kconfig | 3 +- drivers/thunderbolt/Makefile | 4 +- drivers/thunderbolt/nhi.c | 5 + drivers/thunderbolt/power.c | 355 +++++++++++++++++++++++++++++++++++++++++++ drivers/thunderbolt/power.h | 37 +++++ drivers/thunderbolt/switch.c | 9 ++ drivers/thunderbolt/tb.c | 13 ++ drivers/thunderbolt/tb.h | 2 + include/linux/pci.h | 1 + include/linux/pm.h | 7 + include/linux/pm_runtime.h | 7 + 16 files changed, 506 insertions(+), 11 deletions(-) create mode 100644 drivers/thunderbolt/power.c create mode 100644 drivers/thunderbolt/power.h -- 2.11.0 -- 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
