drm/i915: Don't spam dmesg with rps messages on vlv/chv

If the GPU frequency isn't going to change don't spam dmesg with
debug messages about it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 45f2aa0b8fe5..c27b6140bfd1 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3491,17 +3491,18 @@ void valleyview_set_rps(struct drm_device *dev, u8 val)
         WARN_ON(val > dev_priv->rps.max_freq_softlimit);
         WARN_ON(val < dev_priv->rps.min_freq_softlimit);
 
-        DRM_DEBUG_DRIVER("GPU freq request from %d MHz (%u) to %d MHz (%u)\n",
-                         vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
-                         dev_priv->rps.cur_freq,
-                         vlv_gpu_freq(dev_priv, val), val);
-
         if (WARN_ONCE(IS_CHERRYVIEW(dev) && (val & 1),
                       "Odd GPU freq value\n"))
                 val &= ~1;
 
-        if (val != dev_priv->rps.cur_freq)
+        if (val != dev_priv->rps.cur_freq) {
+                DRM_DEBUG_DRIVER("GPU freq request from %d MHz (%u) to %d MHz (%u)\n",
+                                 vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
+                                 dev_priv->rps.cur_freq,
+                                 vlv_gpu_freq(dev_priv, val), val);
+
                 vlv_punit_write(dev_priv, PUNIT_REG_GPU_FREQ_REQ, val);
+        }
 
         I915_WRITE(GEN6_PMINTRMSK, gen6_rps_pm_mask(dev_priv, val));