drm/i915: Pass dev_priv to vlv_gpu_freq() and vlv_freq_opcode()

We'll be looking at more than just mem_freq from dev_priv, so
just pass the whole thing.

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>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3ffe330..e2d9745 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2411,8 +2411,8 @@
 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
 		     enum intel_sbi_destination destination);
 
-int vlv_gpu_freq(int ddr_freq, int val);
-int vlv_freq_opcode(int ddr_freq, 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);
 
 #define I915_READ8(reg)		dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
 #define I915_WRITE8(reg, val)	dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)