Den 21.11.2022 11.45, skrev Thomas Zimmermann:
> 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 restof 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.
>
Tested-by: Noralf Trønnes <noralf@xxxxxxxxxxx> # drm/tiny/mi0283qt
> 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 | 175 +++++++++++++++----
> 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 | 42 +++--
> 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 | 45 +++--
> drivers/gpu/drm/tiny/st7735r.c | 5 +-
> include/drm/drm_gem_atomic_helper.h | 2 -
> include/drm/drm_mipi_dbi.h | 50 +++++-
> include/drm/drm_plane.h | 4 +-
> include/drm/drm_simple_kms_helper.h | 4 +-
> 17 files changed, 265 insertions(+), 132 deletions(-)
>
>
> base-commit: b7598e2b3a3116bb5ddbf756db30a0e5dc0877ea
> prerequisite-patch-id: c2b2f08f0eccc9f5df0c0da49fa1d36267deb11d
> prerequisite-patch-id: c67e5d886a47b7d0266d81100837557fda34cb24
> prerequisite-patch-id: 3f204510fcbf9530d6540bd8e6128cce598988b6
