[PATCH v10 0/4] PCI: qcom: ep: Add basic interconnect support

From: Krishna chaitanya chundru
Date: Wed Jul 19 2023 - 03:21:13 EST


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 v9:
- addressed the comments by mani.
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):
PCI: qcom-ep: Add ICC bandwidth voting support
arm: dts: qcom: sdx65: Add PCIe EP interconnect path
arm: dts: qcom: sdx55: Add CPU PCIe EP interconnect path
dt-bindings: PCI: qcom: ep: Add interconnects path

.../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 | 71 ++++++++++++++++++++++
4 files changed, 93 insertions(+), 2 deletions(-)

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2.7.4