mbox series

[v9,0/4] PCI: qcom: ep: Add basic interconnect support

Message ID 1689693645-28254-1-git-send-email-quic_krichai@quicinc.com
Headers show
Series PCI: qcom: ep: Add basic interconnect support | expand

Message

Krishna Chaitanya Chundru July 18, 2023, 3:20 p.m. UTC 
Add basic support for managing "pcie-mem" interconnect path by setting
a low constraint before enabling clocks and updating it after the link
is up based on link speed and width the device got enumerated.

changes from v8:
	- Added cpu to pcie path in dtsi and in dtsi binding.
changes from v7:
        - setting icc bw to '0' in disable resources as suggested by mani.
changes from v6:
        - addressed the comments as suggested by mani.
changes from v5:
        - addressed the comments by mani.
changes from v4:
        - rebased with linux-next.
        - Added comments as suggested by mani.
        - removed the arm: dts: qcom: sdx55: Add interconnect path
          as that patch is already applied.
changes from v3:
        - ran make DT_CHECKER_FLAGS=-m dt_binding_check and fixed
         errors.
        - Added macros in the qcom ep driver patch as suggested by Dmitry
changes from v2:
        - changed the logic for getting speed and width as suggested
         by bjorn.
        - fixed compilation errors.


Krishna chaitanya chundru (4):
  dt-bindings: PCI: qcom: ep: Add interconnects path
  arm: dts: qcom: sdx65: Add PCIe interconnect path
  arm: dts: qcom: sdx55: Add CPU PCIe interconnect path
  PCI: qcom-ep: Add ICC bandwidth voting support

 .../devicetree/bindings/pci/qcom,pcie-ep.yaml      | 15 +++++
 arch/arm/boot/dts/qcom/qcom-sdx55.dtsi             |  5 +-
 arch/arm/boot/dts/qcom/qcom-sdx65.dtsi             |  4 ++
 drivers/pci/controller/dwc/pcie-qcom-ep.c          | 72 ++++++++++++++++++++++
 4 files changed, 94 insertions(+), 2 deletions(-)