[PATCH 0/9] drm: replace simple display pipe users with atomic helpers

[Ze Huang]

struct drm_simple_display_pipe was meant to simplify simple DRM
drivers, but instead adds an extra wrapper around normal DRM atomic
helper setup. As noted in Documentation/gpu/todo.rst, remaining users
should be converted to regular atomic helpers and stop depending on the
simple-KMS interfaces.

This series converts the following drivers:

  - arcpgu
  - aspeed
  - imx lcdc
  - mcde
  - pl111
  - gm12u320
  - repaper
  - tve200
  - xen frontend

Each patch replaces drm_simple_display_pipe_init() with explicit
primary plane, CRTC and encoder setup, and moves the old simple-pipe
callbacks into regular plane and CRTC helper callbacks named according
to local driver conventions.

The conversions preserve helper behavior that used to be implicit in
drm_simple_kms_helper.c, including plane-state validation, CRTC
primary-plane checks, affected-plane propagation, framebuffer prepare
handling, and existing event/vblank flow where applicable.

Result is less helper indirection and more explicit driver-side atomic
wiring, with no remaining simple-KMS dependency in these drivers.

These changes are build-tested only. No hardware testing has been
performed on the affected devices.

This series is based on drm-next-2026-06-27.

Thanks,
Ze Huang

Signed-off-by: Ze Huang <ze.huang at oss.qualcomm.com>
---
Ze Huang (9):
      drm/arcpgu: replace struct drm_simple_display_pipe with regular atomic helpers
      drm/aspeed: replace struct drm_simple_display_pipe with regular atomic helpers
      drm/imx: replace struct drm_simple_display_pipe with regular atomic helpers
      drm/mcde: replace struct drm_simple_display_pipe with regular atomic helpers
      drm/pl111: replace struct drm_simple_display_pipe with regular atomic helpers
      drm/gm12u320: replace struct drm_simple_display_pipe with regular atomic helpers
      drm/repaper: replace struct drm_simple_display_pipe with regular atomic helpers
      drm/tve200: replace struct drm_simple_display_pipe with regular atomic helpers
      drm/xen: replace struct drm_simple_display_pipe with regular atomic helpers

 drivers/gpu/drm/aspeed/aspeed_gfx.h      |   5 +-
 drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c | 156 ++++++++++++++++------
 drivers/gpu/drm/aspeed/aspeed_gfx_drv.c  |   3 +-
 drivers/gpu/drm/imx/lcdc/imx-lcdc.c      | 178 ++++++++++++++++++-------
 drivers/gpu/drm/mcde/mcde_display.c      | 162 ++++++++++++++++------
 drivers/gpu/drm/mcde/mcde_drm.h          |   6 +-
 drivers/gpu/drm/mcde/mcde_drv.c          |   3 +-
 drivers/gpu/drm/pl111/pl111_display.c    | 174 ++++++++++++++++++------
 drivers/gpu/drm/pl111/pl111_drm.h        |   5 +-
 drivers/gpu/drm/pl111/pl111_drv.c        |   3 +-
 drivers/gpu/drm/tiny/arcpgu.c            | 165 ++++++++++++++++++-----
 drivers/gpu/drm/tiny/gm12u320.c          | 128 ++++++++++++++----
 drivers/gpu/drm/tiny/repaper.c           | 130 ++++++++++++++----
 drivers/gpu/drm/tve200/tve200_display.c  | 221 +++++++++++++++++++++----------
 drivers/gpu/drm/tve200/tve200_drm.h      |   6 +-
 drivers/gpu/drm/tve200/tve200_drv.c      |  17 ++-
 drivers/gpu/drm/xen/xen_drm_front.h      |   6 +-
 drivers/gpu/drm/xen/xen_drm_front_kms.c  | 177 +++++++++++++++++++------
 18 files changed, 1164 insertions(+), 381 deletions(-)
---
base-commit: 3696d07837d1df13a5603d77f667685e7dfb3c53
change-id: 20260704-drm-simple-kms-removal-01a031c6a129

Best regards,
--  
Ze Huang <ze.huang at oss.qualcomm.com>