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drm/i915/psr: Add some documentation of variables used in psr code

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We are adding more boolean variable into intel_psr and intel_crtc_state
structs. Add some documentation about these for sake of clarity.

v2: Modify has_psr +  has_panel_replay to mean panel replay

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240405113602.992714-2-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2024-04-05 14:35:55 +03:00
parent af72a61ddb
commit 7de3363e60
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/i915/display/intel_psr.c
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@ -171,6 +171,22 @@
*
* The rest of the bits are more self-explanatory and/or
* irrelevant for normal operation.
*
* Description of intel_crtc_state variables. has_psr, has_panel_replay and
* has_sel_update:
*
* has_psr (alone): PSR1
* has_psr + has_sel_update: PSR2
* has_psr + has_panel_replay: Panel Replay
* has_psr + has_panel_replay + has_sel_update: Panel Replay Selective Update
*
* Description of some intel_psr varibles. enabled, panel_replay_enabled,
* sel_update_enabled
*
* enabled (alone): PSR1
* enabled + sel_update_enabled: PSR2
* enabled + panel_replay_enabled: Panel Replay
* enabled + panel_replay_enabled + sel_update_enabled: Panel Replay SU
*/
#define CAN_PSR(intel_dp) ((intel_dp)->psr.sink_support && \