[PATCH 5/7] drm/i915/display: Plug modeset bits to atomic check

[Anusha Srivatsa]

Populate the new steps struct for modeset case.

Signed-off-by: Anusha Srivatsa <anusha.srivatsa at intel.com>
---
 drivers/gpu/drm/i915/display/intel_cdclk.c | 18 +++++++++++++-----
 drivers/gpu/drm/i915/display/intel_cdclk.h |  2 +-
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 6fe2a711c407..75a64b1ce94a 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -2015,8 +2015,16 @@ static bool intel_cdclk_can_squash(struct drm_i915_private *dev_priv,
  * requires all pipes to be off, false if not.
  */
 bool intel_cdclk_needs_modeset(const struct intel_cdclk_config *a,
-			       const struct intel_cdclk_config *b)
+			       struct intel_cdclk_config *b)
 {
+	struct cdclk_step *cdclk_transition = b->steps;
+
+	if (a->cdclk != b->cdclk || a->vco != b->vco ||
+	    a->ref != b->ref) {
+		cdclk_transition->action = CDCLK_LEGACY;
+		cdclk_transition->cdclk = b->cdclk;
+	}
+
 	return a->cdclk != b->cdclk ||
 		a->vco != b->vco ||
 		a->ref != b->ref;
@@ -2065,7 +2073,7 @@ static bool intel_cdclk_can_cd2x_update(struct drm_i915_private *dev_priv,
  * True if the CDCLK configurations don't match, false if they do.
  */
 static bool intel_cdclk_changed(const struct intel_cdclk_config *a,
-				const struct intel_cdclk_config *b)
+				struct intel_cdclk_config *b)
 {
 	return intel_cdclk_needs_modeset(a, b) ||
 		a->voltage_level != b->voltage_level;
@@ -2091,7 +2099,7 @@ void intel_cdclk_dump_config(struct drm_i915_private *i915,
  * if necessary.
  */
 static void intel_set_cdclk(struct drm_i915_private *dev_priv,
-			    const struct intel_cdclk_config *cdclk_config,
+			    struct intel_cdclk_config *cdclk_config,
 			    enum pipe pipe)
 {
 	struct intel_encoder *encoder;
@@ -2163,7 +2171,7 @@ intel_set_cdclk_pre_plane_update(struct intel_atomic_state *state)
 	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
 	const struct intel_cdclk_state *old_cdclk_state =
 		intel_atomic_get_old_cdclk_state(state);
-	const struct intel_cdclk_state *new_cdclk_state =
+	struct intel_cdclk_state *new_cdclk_state =
 		intel_atomic_get_new_cdclk_state(state);
 	enum pipe pipe = new_cdclk_state->pipe;
 
@@ -2192,7 +2200,7 @@ intel_set_cdclk_post_plane_update(struct intel_atomic_state *state)
 	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
 	const struct intel_cdclk_state *old_cdclk_state =
 		intel_atomic_get_old_cdclk_state(state);
-	const struct intel_cdclk_state *new_cdclk_state =
+	struct intel_cdclk_state *new_cdclk_state =
 		intel_atomic_get_new_cdclk_state(state);
 	enum pipe pipe = new_cdclk_state->pipe;
 
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.h b/drivers/gpu/drm/i915/display/intel_cdclk.h
index 34164868e1d5..c8fbed202c8a 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.h
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.h
@@ -75,7 +75,7 @@ void intel_update_max_cdclk(struct drm_i915_private *dev_priv);
 void intel_update_cdclk(struct drm_i915_private *dev_priv);
 u32 intel_read_rawclk(struct drm_i915_private *dev_priv);
 bool intel_cdclk_needs_modeset(const struct intel_cdclk_config *a,
-			       const struct intel_cdclk_config *b);
+			       struct intel_cdclk_config *b);
 void intel_set_cdclk_pre_plane_update(struct intel_atomic_state *state);
 void intel_set_cdclk_post_plane_update(struct intel_atomic_state *state);
 void intel_cdclk_dump_config(struct drm_i915_private *i915,
-- 
2.25.1