[v2,00/17] Qcom PCIe cleanups and improvements

Message

Manivannan Sadhasivam March 9, 2023, 8:50 a.m. UTC

Hi,

This series brings in several code cleanups and improvements to the
Qualcomm PCIe controller drivers (RC and EP). The cleanup part mostly
cleans up the bitfield definitions and transitions to bulk APIs for clocks,
and resets. The improvement part adds the debugfs entry to track link
transition counts in RC driver.

Testing
-------

I have tested this series on SDM845, SM8250 and SC8280XP based platforms.
However, I'm counting on Qualcomm folks CCed to do testing on older IPQ/APQ
platforms.

Merging Strategy
----------------

Binding and driver patches through PCI tree and DTS patches through Qcom
tree.

NOTE: For the sake of maintaining dependency, I've clubbed both cleanup and
improvement patches in the same series. If any of the maintainers prefer to
have them splitted, please let me know.

Thanks,
Mani

Changes in v2:

* Moved the "mhi" region to last in the binding and dtsi's
* Dropped the patches renaming the "mmio" region

Manivannan Sadhasivam (17):
  PCI: qcom: Remove PCIE20_ prefix from register definitions
  PCI: qcom: Sort and group registers and bitfield definitions
  PCI: qcom: Use bitfield definitions for register fields
  PCI: qcom: Add missing macros for register fields
  PCI: qcom: Use lower case for hex
  PCI: qcom: Use bulk reset APIs for handling resets for IP rev 2.1.0
  PCI: qcom: Use bulk clock APIs for handling clocks for IP rev 1.0.0
  PCI: qcom: Use bulk clock APIs for handling clocks for IP rev 2.3.2
  PCI: qcom: Use bulk clock APIs for handling clocks for IP rev 2.3.3
  PCI: qcom: Use bulk reset APIs for handling resets for IP rev 2.3.3
  PCI: qcom: Use bulk reset APIs for handling resets for IP rev 2.4.0
  PCI: qcom: Use macros for defining total no. of clocks & supplies
  dt-bindings: PCI: qcom: Add "mhi" register region to supported SoCs
  arm64: dts: qcom: sdm845: Add "mhi" region to the PCIe nodes
  arm64: dts: qcom: sm8250: Add "mhi" region to the PCIe nodes
  arm64: dts: qcom: sc8280xp: Add "mhi" region to the PCIe nodes
  PCI: qcom: Expose link transition counts via debugfs

 .../devicetree/bindings/pci/qcom,pcie.yaml    |   12 +-
 arch/arm64/boot/dts/qcom/sc8280xp.dtsi        |   25 +-
 arch/arm64/boot/dts/qcom/sdm845.dtsi          |   10 +-
 arch/arm64/boot/dts/qcom/sm8250.dtsi          |   15 +-
 drivers/pci/controller/dwc/pcie-qcom.c        | 1009 ++++++-----------
 5 files changed, 402 insertions(+), 669 deletions(-)