[v3,0/3] HDR aux backlight range calculation

Message

Hogander, Jouni July 19, 2022, 9:56 a.m. UTC

This patch set splits out static hdr metadata backlight range parsing
from gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c into gpu/drm/drm-edid.c
as a new function. This new function is then used during edid parsing
when HDR static metadata block parsing.

Calculated values are stored in a new struct drm_luminance_range
introduced into display_info. Amdgpu_dm.c and intel_dp_aux_backlight.c
are using this new data.

v3: Some clean-ups suggested by Jani Nikula
v2: Calculate the range during edid parsing and store into display_info

Cc: Roman Li <[e-mail]>
Cc: Maarten Lankhorst <[e-mail]>
Cc: Rodrigo Siqueira <[e-mail]>
Cc: Harry Wentland <[e-mail]>
Cc: Lyude Paul <[e-mail]>
Cc: Mika Kahola <[e-mail]>
Cc: Jani Nikula <[e-mail]>
Cc: Manasi Navare <[e-mail]>

Jouni Högander (3):
  drm: New function to get luminance range based on static hdr metadata
  drm/amdgpu_dm: Rely on split out luminance calculation function
  drm/i915: Use luminance range calculated during edid parsing

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 35 ++-----------
 drivers/gpu/drm/drm_edid.c                    | 52 ++++++++++++++++++-
 .../drm/i915/display/intel_dp_aux_backlight.c | 15 +++++-
 include/drm/drm_connector.h                   | 21 ++++++++
 4 files changed, 89 insertions(+), 34 deletions(-)