[PATCH v3 0/4] HDMI 2.1 VRR and ALLM support

[Fangzhi Zuo <jerry.zuo@amd.com>]

This series adds HDMI 2.1 gaming support to amdgpu: Variable Refresh Rate
(VRR) derived from the HDMI Forum VSDB (HF-VSDB), and Auto Low-Latency
Mode (ALLM). It builds on a drm/edid patch that parses the HF-VSDB gaming
capabilities into struct drm_hdmi_info.

  - Patch 1 reports FreeSync from the AMD VSDB (existing mechanism).
  - Patch 2 (drm/edid) parses the HF-VSDB VRR range and ALLM bit.
  - Patch 3 enables VRR from the HF-VSDB when the AMD VSDB has no range.
  - Patch 4 signals ALLM_Mode in the HF-VSIF for Game content / active VRR.

v1: https://lore.kernel.org/amd-gfx/20260730171754.704049-1-jerry.zuo@amd.com/
v2: https://lore.kernel.org/amd-gfx/20260806205449.16806-1-jerry.zuo@amd.com/

Changes since v2:
  - Fix coding-style issues in the VTEM info-packet code.

Fangzhi Zuo (3):
  drm/amd/display: Add 2.1 FreeSync support for AMD VSDB EDID Block
  drm/amd/display: Add HDMI 2.1 VRR support from HF-VSDB
  drm/amd/display: Add HDMI ALLM support

Tomasz Pakuła (1):
  drm/edid: parse HDMI 2.1 gaming (ALLM/VRR) capabilities from HF-VSDB

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |   5 +-
 .../display/amdgpu_dm/amdgpu_dm_connector.c   |  89 +++++++++++++-
 .../display/amdgpu_dm/amdgpu_dm_freesync.c    |  43 +++++++
 .../amd/display/modules/inc/mod_info_packet.h |   4 +
 .../display/modules/info_packet/info_packet.c | 109 ++++++++++++++++++
 drivers/gpu/drm/drm_edid.c                    |  42 +++++++
 include/drm/drm_connector.h                   |  47 ++++++++
 7 files changed, 335 insertions(+), 4 deletions(-)


base-commit: de2622bbc20276eaaaafa8fdbd374ace1ced28dc
-- 
2.53.0