[PATCH v4 00/12] PCI: imx6: Fix\rename\clean up and add lut information for imx95

[Frank Li]

Fixed 8mp EP mode problem.

imx6 actaully for all imx chips (imx6*, imx7*, imx8*, imx9*). To avoid     
confuse, rename all imx6_* to imx_*, IMX6_* to IMX_*. pci-imx6.c to        
pci-imx.c to avoid confuse.                                                

Using callback to reduce switch case for core reset and refclk.            

Add imx95 iommux and its stream id information.                            

Base on linux-pci/controller/imx

To: Richard Zhu <hongxing.zhu@xxxxxxx>
To: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
To: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>
To: Krzysztof Wilczyński <kw@xxxxxxxxx>
To: Rob Herring <robh@xxxxxxxxxx>
To: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
To: Shawn Guo <shawnguo@xxxxxxxxxx>
To: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
To: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
To: Fabio Estevam <festevam@xxxxxxxxx>
To: NXP Linux Team <linux-imx@xxxxxxx>
To: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
To: Liam Girdwood <lgirdwood@xxxxxxxxx>
To: Mark Brown <broonie@xxxxxxxxxx>
To: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
To: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: imx@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: bpf@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>

Changes in v4:                                                             
- Improve comment message for patch 1 and 2.
- Rework commit message for patch 3 and add mani's review tag
- Remove file rename patch and update maintainer patch
- [PATCH v3 06/11] PCI: imx: Simplify switch-case logic by involve set_ref_clk callback
	remove extra space.
	keep original comments format (wrap at 80 column width)
	update error message "'Failed to enable PCIe REFCLK'"
- PATCH v3 07/11] PCI: imx: Simplify switch-case logic by involve core_reset callback
	keep exact the logic as original code
- Add patch to update comment about workaround ERR010728
- Add patch about help function imx_pcie_match_device()
- Using bus device notify to update LUT information for imx95 to avoid
parse iommu-map and msi-map in driver code.  Bus notify will better and
only update lut when device added.
- split patch call PHY interface function.
- Improve commit message for imx8q. remove local-address dts proptery. and
use standard "range" to convert cpu address to bus address.             
- Check entry in cpu_fix function is too late. Check it at probe
- Link to v3: https://lore.kernel.org/r/20240402-pci2_upstream-v3-0-803414bdb430@xxxxxxx

Changes in v3:
- Add an EP fixed patch
  PCI: imx6: Fix PCIe link down when i.MX8MM and i.MX8MP PCIe is EP mode
  PCI: imx6: Fix i.MX8MP PCIe EP can not trigger MSI
- Add 8qxp rc support
dt-bing yaml pass binding check
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j8  dt_binding_check DT_SCHEMA_FILES=fsl,imx6q-pcie.yaml
  LINT    Documentation/devicetree/bindings
  DTEX    Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.example.dts
  CHKDT   Documentation/devicetree/bindings/processed-schema.json
  SCHEMA  Documentation/devicetree/bindings/processed-schema.json
  DTC_CHK Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.example.dtb

- Link to v2: https://lore.kernel.org/r/20240304-pci2_upstream-v2-0-ad07c5eb6d67@xxxxxxx

Changes in v2:
- remove file to 'pcie-imx.c'
- keep CONFIG unchange.
- Link to v1: https://lore.kernel.org/r/20240227-pci2_upstream-v1-0-b952f8333606@xxxxxxx

---
Frank Li (8):
      PCI: imx6: Rename imx6_* with imx_*
      PCI: imx6: Introduce SoC specific callbacks for controlling REFCLK
      PCI: imx6: Simplify switch-case logic by involve core_reset callback
      PCI: imx6: Improve comment for workaround ERR010728
      PCI: imx6: Add help function imx_pcie_match_device()
      PCI: imx6: Config look up table(LUT) to support MSI ITS and IOMMU for i.MX95
      PCI: imx6: Consolidate redundant if-checks
      PCI: imx6: Call: Common PHY API to set mode, speed, and submode

Richard Zhu (4):
      PCI: imx6: Fix establish link failure in EP mode for iMX8MM and iMX8MP
      PCI: imx6: Fix i.MX8MP PCIe EP's occasional failure to trigger MSI
      dt-bindings: imx6q-pcie: Add i.MX8Q pcie compatible string
      PCI: imx6: Add i.MX8Q PCIe root complex (RC) support

 .../devicetree/bindings/pci/fsl,imx6q-pcie.yaml    |   16 +
 drivers/pci/controller/dwc/pci-imx6.c              | 1193 ++++++++++++--------
 2 files changed, 736 insertions(+), 473 deletions(-)
---
base-commit: 9d8b196fd12e52820a40c21297a97ea6186aa87e
change-id: 20240227-pci2_upstream-0cdd19a15163

Best regards,
---
Frank Li <Frank.Li@xxxxxxx>