drm/i915/psr: Do not write registers/bits not applicable for panel replay

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Bspec is saying this
mask register: Only PSR_MASK[Mask FBC modify] and PSR_MASK[Mask Hotplug]
are used in panel replay mode.

Status register: Only SRD_STATUS[SRD state] field is used in panel replay
mode.

Due to this stop writing and reading registers and bits not used by panel
replay if panel replay is used.

Bspec: 53370, 68920

v2:
  - use intel_dp_is_edp with PSR_MASK register
  - handle LunarLake as well
  - hanle ALPM configuration as well

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240405113602.992714-7-jouni.hogander@intel.com

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This commit is contained in:

Jouni Högander 2024-04-05 14:36:00 +03:00

parent b7fc3d12a1

commit 251ff160c4

1 changed files with 45 additions and 25 deletions

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drivers/gpu/drm/i915/display/intel_psr.c

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