[Intel-gfx] [PATCH 3/6] drm/i915/display: Embed the new struct steps for squashing

[Anusha Srivatsa <anusha.srivatsa@intel.com>]

Populate the new struct steps for squash case.

Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
---
 drivers/gpu/drm/i915/display/intel_cdclk.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 220d32adbd12..d2e81134b6f2 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -1973,8 +1973,9 @@ static bool intel_cdclk_can_crawl(struct drm_i915_private *dev_priv,
 
 static bool intel_cdclk_can_squash(struct drm_i915_private *dev_priv,
 				   const struct intel_cdclk_config *a,
-				   const struct intel_cdclk_config *b)
+				   struct intel_cdclk_config *b)
 {
+	struct cdclk_step *cdclk_transition = b->steps;
 	/*
 	 * FIXME should store a bit more state in intel_cdclk_config
 	 * to differentiate squasher vs. cd2x divider properly. For
@@ -1984,6 +1985,12 @@ static bool intel_cdclk_can_squash(struct drm_i915_private *dev_priv,
 	if (!has_cdclk_squasher(dev_priv))
 		return false;
 
+	if (a->cdclk != b->cdclk && a->vco != 0 &&
+	    a->vco == b->vco &&	a->ref == b->ref) {
+		cdclk_transition->action = CDCLK_SQUASH_ONLY;
+		cdclk_transition->cdclk = b->cdclk;
+	}
+
 	return a->cdclk != b->cdclk &&
 		a->vco != 0 &&
 		a->vco == b->vco &&
-- 
2.25.1