[v2,0/8] drm/mipi-dbi: Convert to shadow-plane helpers

Message

Thomas Zimmermann Dec. 2, 2022, 12:56 p.m. UTC

Convert the MIPI-DBI-based drivers to shadow-plane helpers. The
drivers vmap/vunmap GEM buffer memory during the atomic commit.
Shadow-plane helpers automate this process.

Patches 1 to 4 prepare the MIPI code for the change and simplify
the rest of the patchset.

Patches 5 to 7 rework the vmap code in the MIPI-DBI drivers and add
shadow-plane helpers. Most of the affected drivers call MIPI-DBI
helpers and get the update automatically. Only ili9225 and st7586
require changes to their source code.

Patch 8 simplifies drm_dev_enter() and _exit(). It's not strictly
needed, but streamlines the driver code and make sense overall.

Testing is welcome, as I don't have any hardware to test these
changes myself.

v2:
	* fix vmap()/vaddr confusion (Noralf)
	* drop struct mipi_dbi_plane_state (Noralf)

Thomas Zimmermann (8):
  drm/simple-kms: Remove drm_gem_simple_display_pipe_prepare_fb()
  drm/ili9225: Call MIPI DBI mode_valid helper
  drm/st7586: Call MIPI DBI mode_valid helper
  drm/mipi-dbi: Initialize default driver functions with macro
  drm/mipi-dbi: Prepare framebuffer copy operation in pipe-update
    helpers
  drm/mipi-dbi: Support shadow-plane state
  drm/mipi-dbi: Use shadow-plane mappings
  drm/mipi-dbi: Move drm_dev_{enter,exit}() out from fb_dirty functions

 drivers/gpu/drm/drm_gem_atomic_helper.c      |  31 +---
 drivers/gpu/drm/drm_mipi_dbi.c               | 144 ++++++++++++++-----
 drivers/gpu/drm/drm_simple_kms_helper.c      |   2 +-
 drivers/gpu/drm/panel/panel-ilitek-ili9341.c |   6 +-
 drivers/gpu/drm/tiny/hx8357d.c               |   5 +-
 drivers/gpu/drm/tiny/ili9163.c               |   6 +-
 drivers/gpu/drm/tiny/ili9225.c               |  36 +++--
 drivers/gpu/drm/tiny/ili9341.c               |   5 +-
 drivers/gpu/drm/tiny/ili9486.c               |   5 +-
 drivers/gpu/drm/tiny/mi0283qt.c              |   5 +-
 drivers/gpu/drm/tiny/panel-mipi-dbi.c        |   5 +-
 drivers/gpu/drm/tiny/st7586.c                |  39 +++--
 drivers/gpu/drm/tiny/st7735r.c               |   5 +-
 include/drm/drm_gem_atomic_helper.h          |   2 -
 include/drm/drm_mipi_dbi.h                   |  36 ++++-
 include/drm/drm_plane.h                      |   4 +-
 include/drm/drm_simple_kms_helper.h          |   4 +-
 17 files changed, 205 insertions(+), 135 deletions(-)


base-commit: ad232f8a0287b805a7a167eddad30fe33fbec9d5