[PATCH v4 0/9] A bunch of changes to refine i.MX PCIe driver

[Richard Zhu <hongxing.zhu@nxp.com>]

A bunch of changes to refine i.MX PCIe driver.
- Add ref clock gate for i.MX95 PCIe by #1, #2 and #9 patches.
  The changes of clock part are here [1].
  [1] https://lkml.org/lkml/2024/10/15/390
- #3 and #4 patches clean i.MX PCIe driver by removing useless codes.
  Patch #3 depends on dts changes. And the dts changes had been applied
  by Shawn, there is no dependecy now.
- Make core reset and enable_ref_clk symmetric for i.MX PCIe driver by
  #5 and #6 patches.
- Use dwc common suspend resume method, and enable i.MX8MQ, i.MX8Q and
  i.MX95 PCIe PM supports by #7 and #8 patches.

v4 changes:
It's my fault that I missing Manivanna in the reviewer list.
I'm sorry about that.
- Rebase to v6.12-rc3, and resolve the dtsi conflictions.
  Add Manivanna into reviewer list.

v3 changes:
- Update EP binding refer to comments provided by Krzysztof Kozlowski.
  Thanks.

v2 changes:
- Add the reasons why one more clock is added for i.MX95 PCIe in patch #1.
- Add the "Reviewed-by: Frank Li <Frank.Li@nxp.com>" into patch #2, #4, #5,
  #6, #8 and #9.

[PATCH v4 1/9] dt-bindings: imx6q-pcie: Add ref clock for i.MX95 PCIe
[PATCH v4 2/9] PCI: imx6: Add ref clock for i.MX95 PCIe
[PATCH v4 3/9] PCI: imx6: Fetch dbi2 and iATU base addesses from DT
[PATCH v4 4/9] PCI: imx6: Correct controller_id generation logic for
[PATCH v4 5/9] PCI: imx6: Make core reset assertion deassertion
[PATCH v4 6/9] PCI: imx6: Make *_enable_ref_clk() function symmetric
[PATCH v4 7/9] PCI: imx6: Use dwc common suspend resume method
[PATCH v4 8/9] PCI: imx6: Add i.MX8MQ i.MX8Q and i.MX95 PCIe PM
[PATCH v4 9/9] arm64: dts: imx95: Add ref clock for i.MX95 PCIe

Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml |   4 +-
Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml     |   1 +
Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml        |  25 ++++++++++--
arch/arm64/boot/dts/freescale/imx95.dtsi                         |  18 +++++++--
drivers/pci/controller/dwc/pci-imx6.c                            | 166 +++++++++++++++++++++++++++-------------------------------------------------
5 files changed, 97 insertions(+), 117 deletions(-)