[v4,0/4] dt-bindings: Convert Cadence PCIe RC/EP to DT Schema

Message

Kishon Vijay Abraham I March 3, 2020, 10:03 a.m. UTC

Cadence PCIe IP is used by multiple SoC vendors (e.g. TI). Cadence
themselves have a validation platform for validating the PCIe IP which
is already in the upstream kernel. Right now the binding only exists for
Cadence platform and this will result in adding redundant binding schema
for any platform using Cadence PCIe core.

This series:
1) Create cdns-pcie.yaml which includes properties that are applicable
   to both host mode and endpoint mode of Cadence PCIe core.
2) Create cdns-pcie-host.yaml to include properties that are specific to
   host mode of Cadence PCIe core. cdns-pcie-host.yaml will include
   cdns-pcie.yaml.
3) Create cdns-pcie-ep.yaml to include properties that are specific to
   endpoint mode of Cadence PCIe core. cdns-pcie-ep.yaml will include
   cdns-pcie.yaml.
4) Remove cdns,cdns-pcie-ep.txt and cdns,cdns-pcie-host.txt which had
   the binding for Cadence "platform" and add cdns,cdns-pcie-host.yaml
   and cdns,cdns-pcie-ep.yaml schema for Cadence Platform. The schema
   for Cadence platform then includes schema for Cadence PCIe core.

Changes from v3:
*) Add "Reviewed-by: Rob Herring <[e-mail]>"
*) Fix typo in SPDX header

Changes from v2:
*) Created "pci-ep.yaml" for common endpoint controller bindings
*) Deprecate "cdns,max-outbound-regions" and "cdns,no-bar-match-nbits"
   binding

Changes from v1:
*) Fix maximum values of num-lanes and cdns,no-bar-match-nbits
*) Fix example DT node for PCIe Endpoint.

Ref: Patches to convert Cadence driver to library
     https://lkml.org/lkml/2019/11/11/317

Some of this was initially part of [1], but to accelerate it getting
into upstream, sending this as a separate series.

[1] -> http://lore.kernel.org/r/[e-mail]

Kishon Vijay Abraham I (4):
  dt-bindings: PCI: Add PCI Endpoint Controller Schema
  dt-bindings: PCI: cadence: Add PCIe RC/EP DT schema for Cadence PCIe
  dt-bindings: PCI: Convert PCIe Host/Endpoint in Cadence platform to DT
    schema
  dt-bindings: PCI: cadence: Deprecate inbound/outbound specific
    bindings

 .../bindings/pci/cdns,cdns-pcie-ep.txt        | 27 -------
 .../bindings/pci/cdns,cdns-pcie-ep.yaml       | 49 ++++++++++++
 .../bindings/pci/cdns,cdns-pcie-host.txt      | 66 ----------------
 .../bindings/pci/cdns,cdns-pcie-host.yaml     | 75 +++++++++++++++++++
 .../bindings/pci/cdns-pcie-host.yaml          | 28 +++++++
 .../devicetree/bindings/pci/cdns-pcie.yaml    | 32 ++++++++
 .../devicetree/bindings/pci/pci-ep.yaml       | 41 ++++++++++
 MAINTAINERS                                   |  2 +-
 8 files changed, 226 insertions(+), 94 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
 create mode 100644 Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml
 delete mode 100644 Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.txt
 create mode 100644 Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml
 create mode 100644 Documentation/devicetree/bindings/pci/cdns-pcie-host.yaml
 create mode 100644 Documentation/devicetree/bindings/pci/cdns-pcie.yaml
 create mode 100644 Documentation/devicetree/bindings/pci/pci-ep.yaml