[PATCH v4 26/32] drm/i915: Factor out function to clear pipe update flags

[Imre Deak]

Factor out a helper to clear the pipe update flags, used by a follow-up
patch to modeset an MST topology.

v2:
- Move the intel_crtc_needs_modeset() check to the callers. (Ville)

Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 52 ++++++++++----------
 1 file changed, 27 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 1133c2893bb38..d27afda0cfaa6 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -5551,6 +5551,14 @@ int intel_modeset_pipes_in_mask_early(struct intel_atomic_state *state,
 	return 0;
 }
 
+static void
+clear_pipe_update_flags_on_modeset_crtc(struct intel_crtc_state *crtc_state)
+{
+	crtc_state->update_pipe = false;
+	crtc_state->update_m_n = false;
+	crtc_state->update_lrr = false;
+}
+
 /**
  * intel_modeset_all_pipes_late - force a full modeset on all pipes
  * @state: intel atomic state
@@ -5584,9 +5592,8 @@ int intel_modeset_all_pipes_late(struct intel_atomic_state *state,
 		if (ret)
 			return ret;
 
-		crtc_state->update_pipe = false;
-		crtc_state->update_m_n = false;
-		crtc_state->update_lrr = false;
+		clear_pipe_update_flags_on_modeset_crtc(crtc_state);
+
 		crtc_state->update_planes |= crtc_state->active_planes;
 		crtc_state->async_flip_planes = 0;
 		crtc_state->do_async_flip = false;
@@ -5699,13 +5706,14 @@ static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_sta
 	else
 		new_crtc_state->uapi.mode_changed = false;
 
-	if (intel_crtc_needs_modeset(new_crtc_state) ||
-	    intel_compare_link_m_n(&old_crtc_state->dp_m_n,
+	if (intel_crtc_needs_modeset(new_crtc_state))
+		clear_pipe_update_flags_on_modeset_crtc(new_crtc_state);
+
+	if (intel_compare_link_m_n(&old_crtc_state->dp_m_n,
 				   &new_crtc_state->dp_m_n))
 		new_crtc_state->update_m_n = false;
 
-	if (intel_crtc_needs_modeset(new_crtc_state) ||
-	    (old_crtc_state->hw.adjusted_mode.crtc_vtotal == new_crtc_state->hw.adjusted_mode.crtc_vtotal &&
+	if ((old_crtc_state->hw.adjusted_mode.crtc_vtotal == new_crtc_state->hw.adjusted_mode.crtc_vtotal &&
 	     old_crtc_state->hw.adjusted_mode.crtc_vblank_end == new_crtc_state->hw.adjusted_mode.crtc_vblank_end))
 		new_crtc_state->update_lrr = false;
 
@@ -6484,12 +6492,9 @@ int intel_atomic_check(struct drm_device *dev,
 		if (intel_dp_mst_is_slave_trans(new_crtc_state)) {
 			enum transcoder master = new_crtc_state->mst_master_transcoder;
 
-			if (intel_cpu_transcoders_need_modeset(state, BIT(master))) {
-				new_crtc_state->uapi.mode_changed = true;
-				new_crtc_state->update_pipe = false;
-				new_crtc_state->update_m_n = false;
-				new_crtc_state->update_lrr = false;
-			}
+			if (intel_cpu_transcoders_need_modeset(state, BIT(master)))
+				intel_modeset_pipes_in_mask_early(state, "MST master transcoder",
+								  BIT(crtc->pipe));
 		}
 
 		if (is_trans_port_sync_mode(new_crtc_state)) {
@@ -6498,22 +6503,19 @@ int intel_atomic_check(struct drm_device *dev,
 			if (new_crtc_state->master_transcoder != INVALID_TRANSCODER)
 				trans |= BIT(new_crtc_state->master_transcoder);
 
-			if (intel_cpu_transcoders_need_modeset(state, trans)) {
-				new_crtc_state->uapi.mode_changed = true;
-				new_crtc_state->update_pipe = false;
-				new_crtc_state->update_m_n = false;
-				new_crtc_state->update_lrr = false;
-			}
+			if (intel_cpu_transcoders_need_modeset(state, trans))
+				intel_modeset_pipes_in_mask_early(state, "port sync",
+								  BIT(crtc->pipe));
 		}
 
 		if (new_crtc_state->bigjoiner_pipes) {
-			if (intel_pipes_need_modeset(state, new_crtc_state->bigjoiner_pipes)) {
-				new_crtc_state->uapi.mode_changed = true;
-				new_crtc_state->update_pipe = false;
-				new_crtc_state->update_m_n = false;
-				new_crtc_state->update_lrr = false;
-			}
+			if (intel_pipes_need_modeset(state, new_crtc_state->bigjoiner_pipes))
+				intel_modeset_pipes_in_mask_early(state, "bigjoiner pipes",
+								  BIT(crtc->pipe));
 		}
+
+		if (intel_crtc_needs_modeset(new_crtc_state))
+			clear_pipe_update_flags_on_modeset_crtc(new_crtc_state);
 	}
 
 	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
-- 
2.39.2