[PATCH v4 00/12] Panel Replay + Adaptive sync

Maarten Lankhorst maarten.lankhorst at linux.intel.com
Mon May 26 11:43:51 UTC 2025


Hey,

Seems to be just some register definitions.

Acked-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>

Best regards,
~Maarten

On 2025-05-22 07:25, Hogander, Jouni wrote:
> Hello DRM Maintainers,
> 
> I have two patches (01/12 and 02/12) in this set I would like to merge
> via drm-intel/drm-intel-next. Is that ok to you? They are touching i915
> display driver and drm_dp.h header and rest of the patch set is
> depending on those changes. Can one of you ack those two patches?
> 
> Thank You in Advance,
> 
> Jouni Högander
> 
> On Wed, 2025-05-21 at 14:53 +0300, Jouni Högander wrote:
>> This patch set is adding missing configuration to have Panel Replay
>> and Adaptive Sync enabled simultaneously. Also some issues identified
>> while debugging are fixed:
>>
>> 1. Source PORT ALPM configuration has to made during modeset.
>> 2. PHY_CMN1_CONTROL is not written according to HAS document
>> 3. Wrong register field definitions for PORT_ALPM_LFPS_CTL.
>>
>> Patches are tested on LunarLake and PantherLake using our reference
>> panel supporting
>> Adaptive Sync and Panel Replay.
>>
>> v4:
>>   - added DP_DSC_DECODE_CAPABILITY definitions
>>   - use defined shift instead of hardcoded value
>> v3:
>>   - comment about DP2.1 corrected as DP2.1a
>>   - referring patch removed from commit message
>> v2:
>>   - rework Panel Replay DPCD register definitions
>>   - do not use hardcoded indices while accessing intel_dp->pr_dpcd
>>   - ensure ALPM registers are not written on platform where they do
>>     not exist
>>   - remove kerneldoc comments
>>
>> Jouni Högander (12):
>>   drm/panelreplay: Panel Replay capability DPCD register definitions
>>   drm/dp: Add Panel Replay capability bits from DP2.1 specification
>>   drm/i915/psr: Read all Panel Replay capability registers from DPCD
>>   drm/i915/alpm: Add PR_ALPM_CTL register definitions
>>   drm/i915/alpm: Write PR_ALPM_CTL register
>>   drm/i915/psr: Add interface to check if AUXLess ALPM is needed by
>> PSR
>>   drm/i915/alpm: Add new interface to check if AUXLess ALPM is used
>>   drm/i915/alpm: Move port alpm configuration
>>   drm/i915/display: Add PHY_CMN1_CONTROL register definitions
>>   drm/i915/display: Add function to configure LFPS sending
>>   drm/i915/psr: Fix using wrong mask in REG_FIELD_PREP
>>   drm/i915/psr: Do not disable Panel Replay in case VRR is enabled
>>
>>  drivers/gpu/drm/i915/display/intel_alpm.c     | 72 +++++++++++++----
>> --
>>  drivers/gpu/drm/i915/display/intel_alpm.h     |  4 ++
>>  drivers/gpu/drm/i915/display/intel_cx0_phy.c  | 32 +++++++++
>>  drivers/gpu/drm/i915/display/intel_cx0_phy.h  |  2 +
>>  .../gpu/drm/i915/display/intel_cx0_phy_regs.h |  3 +
>>  drivers/gpu/drm/i915/display/intel_ddi.c      | 12 ++++
>>  .../drm/i915/display/intel_display_types.h    |  4 +-
>>  drivers/gpu/drm/i915/display/intel_psr.c      | 44 +++++++-----
>>  drivers/gpu/drm/i915/display/intel_psr.h      |  2 +
>>  drivers/gpu/drm/i915/display/intel_psr_regs.h | 14 +++-
>>  include/drm/display/drm_dp.h                  | 24 +++++--
>>  11 files changed, 168 insertions(+), 45 deletions(-)
>>
> 



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