[PATCH 0/5] drm/msm/dsi: collect bonded command-path data into per-SoC config

[Qianhui Xu]

*** AI-assistance disclosure ***: this series was drafted by a coding
agent (Pi) working from the author's design and measurements; the author
reviewed, tested and approved the final text. The design, measurements
and decisions are the author's own.

The sm8750 (Lenovo Y700 4th gen, TB322FC) uses bonded DSI: two DSI hosts
share one bonded link, and the master is decided by the SoC generation.
This series is preparatory refactoring of that bonded command path,
carried over from the vendor tree:

  - 0001/0003 move the bonded command failure flag into the DSI manager
    state and route the command path through host ops, so no mutable
    bonded state stays file-scoped;
  - 0002 collects the per-SoC bonded command-path data (FIFO error mask,
    CMD_DMA_CTRL bits, peer poll budget) into a new struct
    msm_dsi_bonded_cfg hung off the existing per-SoC table;
  - 0004 takes the bonded master link id from that per-SoC config
    instead of deriving it from probe order;
  - 0005 names the FIFO error bits instead of using raw magic numbers.

*** NOTE ***: this series contains NO functional fix for the Q28 panel
issue. It only re-homes data and names constants; behaviour is unchanged
(patch 5 is explicitly "No functional change").

The bonded command path that this series re-homes is the one the vendor
firmware lineage on this device (SM8750) drives; the series introduces no
new runtime behaviour (patch 5 is explicitly "No functional change").
Gates re-run on the final series:
  - checkpatch --strict: 5/5 patches clean;
  - make -j26 W=1 drivers/gpu/drm/msm/: 0 errors, 0 warnings;
  - the series replays cleanly, in order, on top of 0f1fb1c9c1.

Qianhui Xu (5):
  drm/msm/dsi: move bonded command failure flag into dsi manager state
  drm/msm/dsi: add per-SoC bonded command-path config
  drm/msm/dsi: route the bonded command path through host ops
  drm/msm/dsi: take bonded DSI master cfg from per-SoC config
  drm/msm/dsi: name the FIFO error bits of the bonded command path

 drivers/gpu/drm/msm/dsi/dsi.h         |  21 ++---
 drivers/gpu/drm/msm/dsi/dsi_cfg.c     |  51 +++++++++++
 drivers/gpu/drm/msm/dsi/dsi_cfg.h     |  30 +++++++
 drivers/gpu/drm/msm/dsi/dsi_host.c    | 123 ++++++++++++++++++++++----
 drivers/gpu/drm/msm/dsi/dsi_manager.c | 123 ++++++++++++--------------
 5 files changed, 249 insertions(+), 99 deletions(-)


base-commit: 0f1fb1c9c1c8f09c711e8e9a82acbde2baeed691
-- 
2.53.0