drm/i915: Give names to the CCK_DISPLAY_CLOCK_CONTROL bits

[cascardo/linux.git] / drivers / gpu / drm / i915 / intel_display.c

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 11a303e..3feaaba 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4516,7 +4516,7 @@ static void valleyview_set_cdclk(struct drm_device *dev, int cdclk)
                mutex_lock(&dev_priv->dpio_lock);
                /* adjust cdclk divider */
                val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
-               val &= ~0xf;
+               val &= ~DISPLAY_FREQUENCY_VALUES;
                val |= divider;
                vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val);
                mutex_unlock(&dev_priv->dpio_lock);
@@ -4553,7 +4553,7 @@ int valleyview_cur_cdclk(struct drm_i915_private *dev_priv)
        divider = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
        mutex_unlock(&dev_priv->dpio_lock);
 
-       divider &= 0xf;
+       divider &= DISPLAY_FREQUENCY_VALUES;
 
        cur_cdclk = DIV_ROUND_CLOSEST(vco << 1, divider + 1);