drm/i915: fix hsw_write_dcomp() error message

That function can be used to write anything on D_COMP, not just
disable it, so print a more appropriate message.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 71430a0..aea4871 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7347,7 +7347,7 @@
 		mutex_lock(&dev_priv->rps.hw_lock);
 		if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP,
 					    val))
-			DRM_ERROR("Failed to disable D_COMP\n");
+			DRM_ERROR("Failed to write to D_COMP\n");
 		mutex_unlock(&dev_priv->rps.hw_lock);
 	} else {
 		I915_WRITE(D_COMP, val);