[PATCH v9 2/8] drm/i915/psr: Add intel_psr_use_trans_push to query if TRANS_PUSH is used

["Jouni Högander" <jouni.hogander@intel.com>]

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.hogander@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 91f4ac86c7ad..170d65999ccd 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -4557,3 +4557,9 @@ int intel_psr_min_guardband(struct intel_crtc_state *crtc_state)
 
 	return psr_min_guardband;
 }
+
+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 b41dc4d44ff2..394b641840b3 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.h
+++ b/drivers/gpu/drm/i915/display/intel_psr.h
@@ -85,5 +85,6 @@ bool intel_psr_needs_alpm_aux_less(struct intel_dp *intel_dp,
 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);
 
 #endif /* __INTEL_PSR_H__ */
-- 
2.43.0