[PATCH 3/8] drm/i915/cdclk: Only compute squash waveform when necessary

[Gustavo Sousa <gustavo.sousa@intel.com>]

It is no use computing the squash waveform if we are not going to use
it. Move the call to cdclk_squash_waveform() inside the block guarded by
HAS_CDCLK_SQUASH(dev_priv).

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
---
 drivers/gpu/drm/i915/display/intel_cdclk.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index bf84bf27213f..cdf3ae766f9e 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -2023,10 +2023,11 @@ static void _bxt_set_cdclk(struct drm_i915_private *dev_priv,
 	} else
 		bxt_cdclk_pll_update(dev_priv, vco);
 
-	waveform = cdclk_squash_waveform(dev_priv, cdclk);
+	if (HAS_CDCLK_SQUASH(dev_priv)) {
+		waveform = cdclk_squash_waveform(dev_priv, cdclk);
 
-	if (HAS_CDCLK_SQUASH(dev_priv))
 		dg2_cdclk_squash_program(dev_priv, waveform);
+	}
 
 	intel_de_write(dev_priv, CDCLK_CTL, bxt_cdclk_ctl(dev_priv, cdclk_config, pipe));
 
-- 
2.44.0