drm/i915: Move vlv cdclk code to .get_display_clock_speed()

We have a standard hook for reading out the current cdclk. Move the VLV
code from valleyview_cur_cdclk() to .get_display_clock_speed().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 13 insertions, 20 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3feaaba3616d..310218afe9c9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4485,7 +4485,7 @@ static void valleyview_set_cdclk(struct drm_device *dev, int cdclk)
         struct drm_i915_private *dev_priv = dev->dev_private;
         u32 val, cmd;
 
-        WARN_ON(valleyview_cur_cdclk(dev_priv) != dev_priv->vlv_cdclk_freq);
+        WARN_ON(dev_priv->display.get_display_clock_speed(dev) != dev_priv->vlv_cdclk_freq);
         dev_priv->vlv_cdclk_freq = cdclk;
 
         if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */
@@ -4542,24 +4542,6 @@ static void valleyview_set_cdclk(struct drm_device *dev, int cdclk)
         intel_i2c_reset(dev);
 }
 
-int valleyview_cur_cdclk(struct drm_i915_private *dev_priv)
-{
-        int cur_cdclk, vco;
-        int divider;
-
-        vco = valleyview_get_vco(dev_priv);
-
-        mutex_lock(&dev_priv->dpio_lock);
-        divider = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
-        mutex_unlock(&dev_priv->dpio_lock);
-
-        divider &= DISPLAY_FREQUENCY_VALUES;
-
-        cur_cdclk = DIV_ROUND_CLOSEST(vco << 1, divider + 1);
-
-        return cur_cdclk;
-}
-
 static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv,
                                  int max_pixclk)
 {
@@ -5269,7 +5251,18 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
 
 static int valleyview_get_display_clock_speed(struct drm_device *dev)
 {
-        return 400000; /* FIXME */
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        int vco = valleyview_get_vco(dev_priv);
+        u32 val;
+        int divider;
+
+        mutex_lock(&dev_priv->dpio_lock);
+        val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
+        mutex_unlock(&dev_priv->dpio_lock);
+
+        divider = val & DISPLAY_FREQUENCY_VALUES;
+
+        return DIV_ROUND_CLOSEST(vco << 1, divider + 1);
 }
 
 static int i945_get_display_clock_speed(struct drm_device *dev)