drm/i915: Add intel_gpu_freq() and intel_freq_opcode()

Rename the vlv_gpu_freq() and vlv_freq_opecode() functions to have
an intel_ prefix, and handle non-VLV/CHV platforms in them as well.
Leave the vlv_ names around for now since they're currently used.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_drv.h

@@ -3234,6 +3234,8 @@ void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
 
+int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
+int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
 

drivers/gpu/drm/i915/intel_pm.c

@@ -6615,28 +6615,34 @@ static int chv_freq_opcode(struct drm_i915_private *dev_priv, int val)
 	return DIV_ROUND_CLOSEST(val * 2 * mul, czclk_freq) * 2;
 }
 
-int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val)
+int intel_gpu_freq(struct drm_i915_private *dev_priv, int val)
 {
-	int ret = -1;
-
 	if (IS_CHERRYVIEW(dev_priv->dev))
-		ret = chv_gpu_freq(dev_priv, val);
+		return chv_gpu_freq(dev_priv, val);
 	else if (IS_VALLEYVIEW(dev_priv->dev))
-		ret = byt_gpu_freq(dev_priv, val);
-
-	return ret;
+		return byt_gpu_freq(dev_priv, val);
+	else
+		return val * GT_FREQUENCY_MULTIPLIER;
 }
 
-int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val)
+int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val)
 {
-	int ret = -1;
+	return intel_gpu_freq(dev_priv, val);
+}
 
+int intel_freq_opcode(struct drm_i915_private *dev_priv, int val)
+{
 	if (IS_CHERRYVIEW(dev_priv->dev))
-		ret = chv_freq_opcode(dev_priv, val);
+		return chv_freq_opcode(dev_priv, val);
 	else if (IS_VALLEYVIEW(dev_priv->dev))
-		ret = byt_freq_opcode(dev_priv, val);
+		return byt_freq_opcode(dev_priv, val);
+	else
+		return val / GT_FREQUENCY_MULTIPLIER;
+}
 
-	return ret;
+int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val)
+{
+	return intel_freq_opcode(dev_priv, val);
 }
 
 void intel_pm_setup(struct drm_device *dev)