drm/i915: Reorganize intel_lpe_audio_notify() arguments

Shuffle the arguments to intel_lpe_audio_notify() around a bit. Pipe
and port being the most important things, so let's put the first, and
thre rest can come in as is. Also constify the eld argument.

Cc: Takashi Iwai <tiwai@suse.de>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-8-ville.syrjala@linux.intel.comReviewed-by: Takashi Iwai <tiwai@suse.de>

drivers/gpu/drm/i915/i915_drv.h

@@ -3721,8 +3721,8 @@ int  intel_lpe_audio_init(struct drm_i915_private *dev_priv);
 void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv);
 void intel_lpe_audio_irq_handler(struct drm_i915_private *dev_priv);
 void intel_lpe_audio_notify(struct drm_i915_private *dev_priv,
-			    void *eld, int port, int pipe, int ls_clock,
-			    bool dp_output);
+			    enum pipe pipe, enum port port,
+			    const void *eld, int ls_clock, bool dp_output);
 
 /* intel_i2c.c */
 extern int intel_setup_gmbus(struct drm_i915_private *dev_priv);

drivers/gpu/drm/i915/intel_audio.c

@@ -632,7 +632,7 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder,
 						 (int) port, (int) pipe);
 	}
 
-	intel_lpe_audio_notify(dev_priv, connector->eld, port, pipe,
+	intel_lpe_audio_notify(dev_priv, pipe, port, connector->eld,
 			       crtc_state->port_clock,
 			       intel_encoder->type == INTEL_OUTPUT_DP);
 }
@@ -669,7 +669,7 @@ void intel_audio_codec_disable(struct intel_encoder *intel_encoder)
 						 (int) port, (int) pipe);
 	}
 
-	intel_lpe_audio_notify(dev_priv, NULL, port, pipe, 0, false);
+	intel_lpe_audio_notify(dev_priv, pipe, port, NULL, 0, false);
 }
 
 /**

drivers/gpu/drm/i915/intel_lpe_audio.c

@@ -307,17 +307,17 @@ void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv)
  * intel_lpe_audio_notify() - notify lpe audio event
  * audio driver and i915
  * @dev_priv: the i915 drm device private data
+ * @pipe: pipe
+ * @port: port
  * @eld : ELD data
- * @pipe: pipe id
- * @port: port id
  * @ls_clock: Link symbol clock in kHz
  * @dp_output: Driving a DP output?
  *
  * Notify lpe audio driver of eld change.
  */
 void intel_lpe_audio_notify(struct drm_i915_private *dev_priv,
-			    void *eld, int port, int pipe, int ls_clock,
-			    bool dp_output)
+			    enum pipe pipe, enum port port,
+			    const void *eld, int ls_clock, bool dp_output)
 {
 	unsigned long irq_flags;
 	struct intel_hdmi_lpe_audio_pdata *pdata = NULL;