[PATCH v4 0/3] Add eDP lane mapping support

[Damon Ding]

This series adds configurable eDP physical lane mapping support via
device tree data-lanes property.

Lane mapping is mainly used for below scenarios:
1. Correct PCB lane swap and differential line routing crossover
   without hardware changes;
2. Adapt mismatched lane pin definitions between SoC and eDP panel;
3. Support multiple panel hardware variants on the same board
   by configuring data-lanes in device tree only.

The series includes driver implementation and device tree binding
updates to support custom lane mapping configuration from endpoint
node, and keeps default linear lane order if no configuration is given.

Patch 1: Add endpoint data-lanes property to analogix-dp binding
Patch 2: Add validation for samsung,lane-count property as preparation
Patch 3: Implement lane mapping in analogix_dp driver

Damon Ding (3):
  dt-bindings: display: bridge: analogix-dp: Add data-lanes support for
    endpoint
  drm/bridge: analogix_dp: Add validation for samsung,lane-count
    property
  drm/bridge: analogix_dp: Add support for optional data-lanes mapping

 .../bindings/display/bridge/analogix,dp.yaml  | 19 +++--
 .../rockchip/rockchip,analogix-dp.yaml        |  1 +
 .../drm/bridge/analogix/analogix_dp_core.c    | 69 ++++++++++++++++++-
 .../drm/bridge/analogix/analogix_dp_core.h    |  4 +-
 .../gpu/drm/bridge/analogix/analogix_dp_reg.c | 15 ++--
 .../gpu/drm/bridge/analogix/analogix_dp_reg.h |  4 ++
 6 files changed, 96 insertions(+), 16 deletions(-)

---

Changes in v2:
- Add lane mapping application scenarios in commit message.
- Remove redundant deprecated property 'data-lanes' for eDP node.
- Update port at 1 $ref to /schemas/graph.yaml#/$defs/port-base.

Changes in v3:
- Squash [PATCH v2 2/3] into [PATCH v2 1/3].
- Add unevaluatedProperties: false to both the port at 1 and endpoint
  nodes.

Changes in v4:
- Add validation for samsung,lane-count property as preparation.

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2.34.1