drm/i915: Move VLV HDMI lane reset work around logic to intel_dpio_phy.c

This moves the last phy specific code from the encoders to the phy
specific file.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Jim Bride <jim.bride@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1461761065-21195-11-git-send-email-ander.conselvan.de.oliveira@intel.com

drivers/gpu/drm/i915/i915_drv.h

@@ -3605,6 +3605,7 @@ void vlv_set_phy_signal_level(struct intel_encoder *encoder,
 			      u32 uniqtranscale_reg_value, u32 tx3_demph);
 void vlv_phy_pre_pll_enable(struct intel_encoder *encoder);
 void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder);
+void vlv_phy_reset_lanes(struct intel_encoder *encoder);
 
 int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
 int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);

drivers/gpu/drm/i915/intel_dpio_phy.c

@@ -453,3 +453,18 @@ void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder)
 
 	mutex_unlock(&dev_priv->sb_lock);
 }
+
+void vlv_phy_reset_lanes(struct intel_encoder *encoder)
+{
+	struct intel_digital_port *dport = enc_to_dig_port(&encoder->base);
+	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
+	struct intel_crtc *intel_crtc =
+		to_intel_crtc(encoder->base.crtc);
+	enum dpio_channel port = vlv_dport_to_channel(dport);
+	int pipe = intel_crtc->pipe;
+
+	mutex_lock(&dev_priv->sb_lock);
+	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(port), 0x00000000);
+	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(port), 0x00e00060);
+	mutex_unlock(&dev_priv->sb_lock);
+}

drivers/gpu/drm/i915/intel_hdmi.c

@@ -1631,18 +1631,8 @@ static void chv_hdmi_post_pll_disable(struct intel_encoder *encoder)
 
 static void vlv_hdmi_post_disable(struct intel_encoder *encoder)
 {
-	struct intel_digital_port *dport = enc_to_dig_port(&encoder->base);
-	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
-	struct intel_crtc *intel_crtc =
-		to_intel_crtc(encoder->base.crtc);
-	enum dpio_channel port = vlv_dport_to_channel(dport);
-	int pipe = intel_crtc->pipe;
-
 	/* Reset lanes to avoid HDMI flicker (VLV w/a) */
-	mutex_lock(&dev_priv->sb_lock);
-	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(port), 0x00000000);
-	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(port), 0x00e00060);
-	mutex_unlock(&dev_priv->sb_lock);
+	vlv_phy_reset_lanes(encoder);
 }
 
 static void chv_hdmi_post_disable(struct intel_encoder *encoder)