[PATCH 0/3] PCI: rockchip: assert PERST# in S3

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




Hi,

This patch series should mostly be self-descriptive, but it's motivated by the
fact that I've found differing requirements from PCIe endpoint makers regarding
the state of PERST# when in system suspend (S3). Additionally, some existing
boards are not especially well suited for holding PERST# low in S3 (e.g., the
pin is driven by a non-PMU GPIO, so it's hard or impossible to keep it
asserted). So the solution is...give it a device tree property!

Brian

Brian Norris (3):
  Documentation/devicetree: Add pcie-reset-suspend property
  of/pci: Add of_pci_get_pcie_reset_suspend() to parse
    pcie-reset-suspend
  PCI: rockchip: Support configuring PERST# state via DT

 Documentation/devicetree/bindings/pci/pci.txt | 11 +++++++++++
 drivers/of/of_pci.c                           | 25 +++++++++++++++++++++++++
 drivers/pci/host/pcie-rockchip.c              |  7 +++++++
 include/linux/of_pci.h                        |  7 +++++++
 4 files changed, 50 insertions(+)

-- 
2.15.0.rc0.271.g36b669edcc-goog

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux