Re: [PATCH 00/14] Fix Adaptive Sync SDP for Panel Replay

["Nautiyal, Ankit K" <ankit.k.nautiyal@intel.com>]

On 2/23/2026 6:44 PM, Ankit Nautiyal wrote:
> Enable Adaptive Sync SDP for Panel replay + auxless ALPM.
> First few patches are fixes in existing AS SDP enablement.
> Later patches add the support to send AS SDP for Panel replay with Link
> ON and with auxless ALPM (Link-Off).


I have mistakenly sent the series --in-reply-to <msg-id>.

I will send the series again.

Sorry for the confusion caused. :(

Regards,

Ankit

>
> This series is in continuation from discussions in [1] [2].
> [1] https://lore.kernel.org/all/1b8c6c6de1e5fe0db83e6ae942dfee7e6f950767.camel@intel.com/
> [2] https://lore.kernel.org/all/aPtqdAxDwiuQZbrn@intel.com/
>
> Rev2:
> Add few fixes in AS_SDP and Lobf.
>
> Rev3:
> Add patch to avoid VRR with PCON.
>
> Rev4:
> - Address review comments.
> - Drop Lobf changes. To be sent as a separate series.
>
> Rev5:
> - Add AS SDP version and PR and VRR specific bits in drm_dp.h.
> - Modify AS SDP compute config to accomodate PR with Link On and Link
>    Off.
> - Program Downspread Ctrl DPCD bits.
> - Make way for T1 and T2 AS SDP transmission timing/position.
>
> Ankit Nautiyal (14):
>    drm/i915/dp: Fix readback for target_rr in Adaptive Sync SDP
>    drm/i915/vrr: Avoid vrr for PCON with HDMI2.1 sink
>    drm/i915/dp: Add a helper to decide if AS SDP is needed
>    drm/i915/dp: Update the helper intel_dp_needs_as_sdp() for CMRR
>    include/drm/display/dp: Add field for storing AS SDP version
>    drm/i915/dp: Use version field of AS SDP data structure
>    drm/i915/dp: Compute AS SDP after PSR and LOBF
>    drm/i915/dp: Add AS SDP support for PR with link ON
>    drm/i915/psr: Add helper to check if PR is with link OFF
>    drm/i915/dp: Set relevant Downspread Ctrl DPCD bits for PR + Auxless
>      ALPM
>    drm/i915/dp: Program AS SDP DB[1:0] for PR with Link off
>    include/drm/display/dp: Add DPCD registers for configuring Panel
>      Replay + VRR
>    drm/i915/display: Add member to store AS SDP transmission time
>    drm/i915/dp: Account for AS_SDP guardband only when enabled
>
>   drivers/gpu/drm/display/drm_dp_helper.c       |  1 +
>   drivers/gpu/drm/i915/display/intel_alpm.c     | 21 +++++++-
>   drivers/gpu/drm/i915/display/intel_display.c  |  3 +-
>   .../drm/i915/display/intel_display_types.h    |  1 +
>   drivers/gpu/drm/i915/display/intel_dp.c       | 48 ++++++++++++++-----
>   .../drm/i915/display/intel_dp_link_training.c | 10 +++-
>   .../drm/i915/display/intel_dp_link_training.h |  3 +-
>   drivers/gpu/drm/i915/display/intel_dp_mst.c   |  2 +-
>   drivers/gpu/drm/i915/display/intel_psr.c      | 13 +++++
>   drivers/gpu/drm/i915/display/intel_psr.h      |  1 +
>   drivers/gpu/drm/i915/display/intel_vrr.c      | 10 ++++
>   include/drm/display/drm_dp.h                  |  9 ++++
>   include/drm/display/drm_dp_helper.h           |  1 +
>   13 files changed, 105 insertions(+), 18 deletions(-)
>