Introduce a helper to check if Panel Replay has Async Video Timing support
during PR Active state.
v2: Confirm that Panel Replay is supported before checking for
Async Video Timing Support during PR active. (Ville)
Signed-off-by: Ankit Nautiyal <[email protected]>
---
drivers/gpu/drm/i915/display/intel_psr.c | 11 +++++++++++
drivers/gpu/drm/i915/display/intel_psr.h | 1 +
2 files changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
b/drivers/gpu/drm/i915/display/intel_psr.c
index 892d209dce1b..431468103f51 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -4655,3 +4655,14 @@ bool intel_psr_use_trans_push(const struct
intel_crtc_state *crtc_state)
return HAS_PSR_TRANS_PUSH_FRAME_CHANGE(display) && crtc_state->has_psr;
}
+
+bool intel_psr_pr_async_video_timing_supported(struct intel_dp *intel_dp)
+{
+ struct intel_connector *connector = intel_dp->attached_connector;
+ u8 *dpcd = connector->dp.panel_replay_caps.dpcd;
+ u8 pr_support = dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_SUPPORT)];
+ u8 pr_cap = dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_CAPABILITY)];
+
+ return (pr_support & DP_PANEL_REPLAY_SUPPORT) &&
+ !(pr_cap &
DP_PANEL_REPLAY_ASYNC_VIDEO_TIMING_NOT_SUPPORTED_IN_PR);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_psr.h
b/drivers/gpu/drm/i915/display/intel_psr.h
index 394b641840b3..29723e63888f 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.h
+++ b/drivers/gpu/drm/i915/display/intel_psr.h
@@ -86,5 +86,6 @@ void intel_psr_compute_config_late(struct intel_dp *intel_dp,
struct intel_crtc_state *crtc_state);
int intel_psr_min_guardband(struct intel_crtc_state *crtc_state);
bool intel_psr_use_trans_push(const struct intel_crtc_state *crtc_state);
+bool intel_psr_pr_async_video_timing_supported(struct intel_dp *intel_dp);
#endif /* __INTEL_PSR_H__ */
--
2.45.2
