This is a preparation to start using trans push as a PSR "Frame Change"
event. It adds intel_psr_use_trans_push placeholder which return false for
now until we have everything in place.

v2:
  - modify commit message
  - add TODO

Signed-off-by: Jouni Högander <jouni.hogan...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 6 ++++++
 drivers/gpu/drm/i915/display/intel_psr.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c 
b/drivers/gpu/drm/i915/display/intel_psr.c
index 8bea2b8188a7..302744252b24 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -4253,3 +4253,9 @@ bool intel_psr_needs_alpm_aux_less(struct intel_dp 
*intel_dp,
 {
        return intel_dp_is_edp(intel_dp) && crtc_state->has_panel_replay;
 }
+
+bool intel_psr_use_trans_push(const struct intel_crtc_state *crtc_state)
+{
+       /* TODO: Enable using trans push when everything is in place */
+       return false;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_psr.h 
b/drivers/gpu/drm/i915/display/intel_psr.h
index 9b061a22361f..7237dfa388b6 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.h
+++ b/drivers/gpu/drm/i915/display/intel_psr.h
@@ -81,5 +81,6 @@ void intel_psr_debugfs_register(struct intel_display 
*display);
 bool intel_psr_needs_alpm(struct intel_dp *intel_dp, const struct 
intel_crtc_state *crtc_state);
 bool intel_psr_needs_alpm_aux_less(struct intel_dp *intel_dp,
                                   const struct intel_crtc_state *crtc_state);
+bool intel_psr_use_trans_push(const struct intel_crtc_state *crtc_state);
 
 #endif /* __INTEL_PSR_H__ */
-- 
2.43.0

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