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authorJouni Högander <jouni.hogander@intel.com>2024-04-05 14:35:55 +0300
committerJouni Högander <jouni.hogander@intel.com>2024-04-08 10:28:51 +0300
commit7de3363e6059f92a7e5c4dba3492011b4daf9485 (patch)
treebb81e99e15dc269e9db137cb7fdc03a14b13e391
parentaf72a61ddb4923aa1b5a3b49a0fcc3098ff3781d (diff)
drm/i915/psr: Add some documentation of variables used in psr code
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
-rw-r--r--drivers/gpu/drm/i915/display/intel_psr.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index eef62983e9db..45d13e042ade 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -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 && \