Nouveau - May 2022 - [PATCH v1 00/13] drm/edid: expand on struct drm_edid usage

Hey all, I'm adding a bunch of people to the cover letter, sorry for the
noise.

I've been putting a lot of effort lately into cleaning up our EDID
parsing. It's been long overdue. Here, we finally leverage all that prep
work to implement the HDMI Forum HF-EEODB extension. In short, HF-EEODB
lets an EDID extension override the number of extensions indicated in
the base block. That has a lot of implications when it comes to EDID
parsing and memory allocation that is currently spread around the
subsystem.

I've added the opaque struct drm_edid in commit e4ccf9a777d3
("drm/edid:
add struct drm_edid container"). The commit message is worth a
read. Here, I'm expanding struct drm_edid to the interfaces for EDID
reading and parsing. They all get an overhaul, along with the probe
helper .get_modes() hook.

In my mind, there is really no alternative to centralizing the EDID
parsing, and hiding the details in drm_edid.c.

I'm also adding a TODO entry; there's still a bunch of work to be done
across the subsystem.


BR,
Jani.


Cc: Adam Jackson <ajax at redhat.com>
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Andrzej Hajda <andrzej.hajda at intel.com>
Cc: Ben Skeggs <bskeggs at redhat.com>
Cc: Christian K?nig <christian.koenig at amd.com>
Cc: Daniel Vetter <daniel at ffwll.ch>
Cc: Dave Airlie <airlied at redhat.com>
Cc: Harry Wentland <harry.wentland at amd.com>
Cc: Karol Herbst <kherbst at redhat.com>
Cc: Laurent Pinchart <Laurent.pinchart at ideasonboard.com>
Cc: Lyude Paul <lyude at redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Maxime Ripard <mripard at kernel.org>
Cc: Neil Armstrong <narmstrong at baylibre.com>
Cc: Robert Foss <robert.foss at linaro.org>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Ville Syrj?l? <ville.syrjala at linux.intel.com>
Cc: Xinhui Pan <Xinhui.Pan at amd.com>
Cc: amd-gfx at lists.freedesktop.org
Cc: nouveau at lists.freedesktop.org

Jani Nikula (13):
  drm/edid: add block count and data helper functions for drm_edid
  drm/edid: keep track of alloc size in drm_do_get_edid()
  drm/edid: add new interfaces around struct drm_edid
  drm/edid: add drm_edid_connector_update()
  drm/probe-helper: abstract .get_modes() connector helper call
  drm/probe-helper: make .get_modes() optional, add default action
  drm/probe-helper: add .get_edid() callback
  drm/edid: add drm_edid_raw() to access the raw EDID data
  drm/i915/edid: convert DP, HDMI and LVDS to drm_edid
  drm/edid: do invalid block filtering in-place
  drm/edid: add HF-EEODB support to EDID read and allocation
  drm/edid: take HF-EEODB extension count into account
  drm/todo: add entry for converting the subsystem to struct drm_edid

 Documentation/gpu/todo.rst                    |  25 +
 drivers/gpu/drm/drm_connector.c               |   2 +
 drivers/gpu/drm/drm_edid.c                    | 538 ++++++++++++++++--
 drivers/gpu/drm/drm_probe_helper.c            |  48 +-
 .../gpu/drm/i915/display/intel_connector.c    |   4 +-
 .../drm/i915/display/intel_display_types.h    |   4 +-
 drivers/gpu/drm/i915/display/intel_dp.c       |  72 +--
 drivers/gpu/drm/i915/display/intel_hdmi.c     |  26 +-
 drivers/gpu/drm/i915/display/intel_lvds.c     |  35 +-
 include/drm/drm_edid.h                        |  12 +
 include/drm/drm_modeset_helper_vtables.h      |  19 +
 11 files changed, 650 insertions(+), 135 deletions(-)

-- 
2.30.2