diff mbox

[2/6] drm/i915: Move dpio code of VLV/CHV dpll enabling to intel_dpio_phy.c

Message ID 1463148903-6337-3-git-send-email-ander.conselvan.de.oliveira@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ander Conselvan de Oliveira May 13, 2016, 2:14 p.m. UTC 
Hide the dpio details of setting up the dplls on VLV/CHV to
intel_dpio_phy.c. This will allow the prepare and enable pll functions
to be merged in a follow up. It also creates a better split of the code
where most of the dpio access are concentrated in one place.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h       |   6 +
 drivers/gpu/drm/i915/intel_display.c  | 207 ++--------------------------------
 drivers/gpu/drm/i915/intel_dpio_phy.c | 202 +++++++++++++++++++++++++++++++++
 3 files changed, 217 insertions(+), 198 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 5f9dda2..99dfacd 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3627,6 +3627,9 @@  void chv_phy_pre_pll_enable(struct intel_encoder *encoder);
 void chv_phy_pre_encoder_enable(struct intel_encoder *encoder);
 void chv_phy_release_cl2_override(struct intel_encoder *encoder);
 void chv_phy_post_pll_disable(struct intel_encoder *encoder);
+void chv_phy_prepare_pll(struct intel_crtc *crtc, u32 bestn,
+			 u32 bestm1, u32 bestm2, u32 bestp1, u32 bestp2,
+			 int vco);
 
 void vlv_set_phy_signal_level(struct intel_encoder *encoder,
 			      u32 demph_reg_value, u32 preemph_reg_value,
@@ -3634,6 +3637,9 @@  void vlv_set_phy_signal_level(struct intel_encoder *encoder,
 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);
+void vlv_phy_prepare_pll(struct intel_crtc *crtc, u32 bestn,
+			 u32 bestm1, u32 bestm2, u32 bestp1, u32 bestp2,
+			 int port_clock, bool dp);
 
 int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
 int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 048a5bf..06d9b96 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7080,35 +7080,6 @@  static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
 	}
 }
 
-static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe
-		pipe)
-{
-	u32 reg_val;
-
-	/*
-	 * PLLB opamp always calibrates to max value of 0x3f, force enable it
-	 * and set it to a reasonable value instead.
-	 */
-	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
-	reg_val &= 0xffffff00;
-	reg_val |= 0x00000030;
-	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
-
-	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
-	reg_val &= 0x8cffffff;
-	reg_val = 0x8c000000;
-	vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
-
-	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
-	reg_val &= 0xffffff00;
-	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
-
-	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
-	reg_val &= 0x00ffffff;
-	reg_val |= 0xb0000000;
-	vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
-}
-
 static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
 					 struct intel_link_m_n *m_n)
 {
@@ -7220,9 +7191,6 @@  static void vlv_prepare_pll(struct intel_crtc *crtc,
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum pipe pipe = crtc->pipe;
-	u32 mdiv;
-	u32 bestn, bestm1, bestm2, bestp1, bestp2;
-	u32 coreclk, reg_val;
 
 	/* Enable Refclk */
 	I915_WRITE(DPLL(pipe),
@@ -7233,85 +7201,12 @@  static void vlv_prepare_pll(struct intel_crtc *crtc,
 	if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0)
 		return;
 
-	mutex_lock(&dev_priv->sb_lock);
-
-	bestn = pipe_config->dpll.n;
-	bestm1 = pipe_config->dpll.m1;
-	bestm2 = pipe_config->dpll.m2;
-	bestp1 = pipe_config->dpll.p1;
-	bestp2 = pipe_config->dpll.p2;
-
-	/* See eDP HDMI DPIO driver vbios notes doc */
-
-	/* PLL B needs special handling */
-	if (pipe == PIPE_B)
-		vlv_pllb_recal_opamp(dev_priv, pipe);
-
-	/* Set up Tx target for periodic Rcomp update */
-	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f);
+	vlv_phy_prepare_pll(crtc, pipe_config->dpll.n,
+			    pipe_config->dpll.m1, pipe_config->dpll.m2,
+			    pipe_config->dpll.p1, pipe_config->dpll.p2,
+			    pipe_config->port_clock,
+			    pipe_config->has_dp_encoder);
 
-	/* Disable target IRef on PLL */
-	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe));
-	reg_val &= 0x00ffffff;
-	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val);
-
-	/* Disable fast lock */
-	vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610);
-
-	/* Set idtafcrecal before PLL is enabled */
-	mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
-	mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
-	mdiv |= ((bestn << DPIO_N_SHIFT));
-	mdiv |= (1 << DPIO_K_SHIFT);
-
-	/*
-	 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
-	 * but we don't support that).
-	 * Note: don't use the DAC post divider as it seems unstable.
-	 */
-	mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
-	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
-
-	mdiv |= DPIO_ENABLE_CALIBRATION;
-	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
-
-	/* Set HBR and RBR LPF coefficients */
-	if (pipe_config->port_clock == 162000 ||
-	    intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG) ||
-	    intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI))
-		vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
-				 0x009f0003);
-	else
-		vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
-				 0x00d0000f);
-
-	if (pipe_config->has_dp_encoder) {
-		/* Use SSC source */
-		if (pipe == PIPE_A)
-			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
-					 0x0df40000);
-		else
-			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
-					 0x0df70000);
-	} else { /* HDMI or VGA */
-		/* Use bend source */
-		if (pipe == PIPE_A)
-			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
-					 0x0df70000);
-		else
-			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
-					 0x0df40000);
-	}
-
-	coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe));
-	coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
-	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
-	    intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))
-		coreclk |= 0x01000000;
-	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk);
-
-	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000);
-	mutex_unlock(&dev_priv->sb_lock);
 }
 
 static void chv_prepare_pll(struct intel_crtc *crtc,
@@ -7320,11 +7215,6 @@  static void chv_prepare_pll(struct intel_crtc *crtc,
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum pipe pipe = crtc->pipe;
-	enum dpio_channel port = vlv_pipe_to_channel(pipe);
-	u32 loopfilter, tribuf_calcntr;
-	u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac;
-	u32 dpio_val;
-	int vco;
 
 	/* Enable Refclk and SSC */
 	I915_WRITE(DPLL(pipe),
@@ -7334,89 +7224,10 @@  static void chv_prepare_pll(struct intel_crtc *crtc,
 	if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0)
 		return;
 
-	bestn = pipe_config->dpll.n;
-	bestm2_frac = pipe_config->dpll.m2 & 0x3fffff;
-	bestm1 = pipe_config->dpll.m1;
-	bestm2 = pipe_config->dpll.m2 >> 22;
-	bestp1 = pipe_config->dpll.p1;
-	bestp2 = pipe_config->dpll.p2;
-	vco = pipe_config->dpll.vco;
-	dpio_val = 0;
-	loopfilter = 0;
-
-	mutex_lock(&dev_priv->sb_lock);
-
-	/* p1 and p2 divider */
-	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port),
-			5 << DPIO_CHV_S1_DIV_SHIFT |
-			bestp1 << DPIO_CHV_P1_DIV_SHIFT |
-			bestp2 << DPIO_CHV_P2_DIV_SHIFT |
-			1 << DPIO_CHV_K_DIV_SHIFT);
-
-	/* Feedback post-divider - m2 */
-	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2);
-
-	/* Feedback refclk divider - n and m1 */
-	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port),
-			DPIO_CHV_M1_DIV_BY_2 |
-			1 << DPIO_CHV_N_DIV_SHIFT);
-
-	/* M2 fraction division */
-	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac);
-
-	/* M2 fraction division enable */
-	dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port));
-	dpio_val &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN);
-	dpio_val |= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT);
-	if (bestm2_frac)
-		dpio_val |= DPIO_CHV_FRAC_DIV_EN;
-	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port), dpio_val);
-
-	/* Program digital lock detect threshold */
-	dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW9(port));
-	dpio_val &= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK |
-					DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE);
-	dpio_val |= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT);
-	if (!bestm2_frac)
-		dpio_val |= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE;
-	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW9(port), dpio_val);
-
-	/* Loop filter */
-	if (vco == 5400000) {
-		loopfilter |= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT);
-		loopfilter |= (0x8 << DPIO_CHV_INT_COEFF_SHIFT);
-		loopfilter |= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT);
-		tribuf_calcntr = 0x9;
-	} else if (vco <= 6200000) {
-		loopfilter |= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT);
-		loopfilter |= (0xB << DPIO_CHV_INT_COEFF_SHIFT);
-		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
-		tribuf_calcntr = 0x9;
-	} else if (vco <= 6480000) {
-		loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT);
-		loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT);
-		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
-		tribuf_calcntr = 0x8;
-	} else {
-		/* Not supported. Apply the same limits as in the max case */
-		loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT);
-		loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT);
-		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
-		tribuf_calcntr = 0;
-	}
-	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter);
-
-	dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW8(port));
-	dpio_val &= ~DPIO_CHV_TDC_TARGET_CNT_MASK;
-	dpio_val |= (tribuf_calcntr << DPIO_CHV_TDC_TARGET_CNT_SHIFT);
-	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW8(port), dpio_val);
-
-	/* AFC Recal */
-	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port),
-			vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) |
-			DPIO_AFC_RECAL);
-
-	mutex_unlock(&dev_priv->sb_lock);
+	chv_phy_prepare_pll(crtc, pipe_config->dpll.n,
+			    pipe_config->dpll.m1, pipe_config->dpll.m2,
+			    pipe_config->dpll.p1, pipe_config->dpll.p2,
+			    pipe_config->dpll.vco);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_dpio_phy.c b/drivers/gpu/drm/i915/intel_dpio_phy.c
index 288da35..fcadc92 100644
--- a/drivers/gpu/drm/i915/intel_dpio_phy.c
+++ b/drivers/gpu/drm/i915/intel_dpio_phy.c
@@ -370,6 +370,97 @@  void chv_phy_post_pll_disable(struct intel_encoder *encoder)
 	chv_phy_powergate_lanes(encoder, false, 0x0);
 }
 
+void chv_phy_prepare_pll(struct intel_crtc *crtc, u32 bestn,
+			 u32 bestm1, u32 bestm2, u32 bestp1, u32 bestp2,
+			 int vco)
+{
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
+	enum dpio_channel port = vlv_pipe_to_channel(pipe);
+	u32 loopfilter, tribuf_calcntr;
+	u32 bestm2_frac;
+	u32 dpio_val;
+
+	bestm2_frac = bestm2 & 0x3fffff;
+	bestm2 = bestm2 >> 22;
+	dpio_val = 0;
+	loopfilter = 0;
+
+	mutex_lock(&dev_priv->sb_lock);
+
+	/* p1 and p2 divider */
+	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port),
+			5 << DPIO_CHV_S1_DIV_SHIFT |
+			bestp1 << DPIO_CHV_P1_DIV_SHIFT |
+			bestp2 << DPIO_CHV_P2_DIV_SHIFT |
+			1 << DPIO_CHV_K_DIV_SHIFT);
+
+	/* Feedback post-divider - m2 */
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2);
+
+	/* Feedback refclk divider - n and m1 */
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port),
+			DPIO_CHV_M1_DIV_BY_2 |
+			1 << DPIO_CHV_N_DIV_SHIFT);
+
+	/* M2 fraction division */
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac);
+
+	/* M2 fraction division enable */
+	dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port));
+	dpio_val &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN);
+	dpio_val |= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT);
+	if (bestm2_frac)
+		dpio_val |= DPIO_CHV_FRAC_DIV_EN;
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port), dpio_val);
+
+	/* Program digital lock detect threshold */
+	dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW9(port));
+	dpio_val &= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK |
+					DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE);
+	dpio_val |= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT);
+	if (!bestm2_frac)
+		dpio_val |= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE;
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW9(port), dpio_val);
+
+	/* Loop filter */
+	if (vco == 5400000) {
+		loopfilter |= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT);
+		loopfilter |= (0x8 << DPIO_CHV_INT_COEFF_SHIFT);
+		loopfilter |= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT);
+		tribuf_calcntr = 0x9;
+	} else if (vco <= 6200000) {
+		loopfilter |= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT);
+		loopfilter |= (0xB << DPIO_CHV_INT_COEFF_SHIFT);
+		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
+		tribuf_calcntr = 0x9;
+	} else if (vco <= 6480000) {
+		loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT);
+		loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT);
+		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
+		tribuf_calcntr = 0x8;
+	} else {
+		/* Not supported. Apply the same limits as in the max case */
+		loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT);
+		loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT);
+		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
+		tribuf_calcntr = 0;
+	}
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter);
+
+	dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW8(port));
+	dpio_val &= ~DPIO_CHV_TDC_TARGET_CNT_MASK;
+	dpio_val |= (tribuf_calcntr << DPIO_CHV_TDC_TARGET_CNT_SHIFT);
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW8(port), dpio_val);
+
+	/* AFC Recal */
+	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port),
+			vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) |
+			DPIO_AFC_RECAL);
+
+	mutex_unlock(&dev_priv->sb_lock);
+}
+
 void vlv_set_phy_signal_level(struct intel_encoder *encoder,
 			      u32 demph_reg_value, u32 preemph_reg_value,
 			      u32 uniqtranscale_reg_value, u32 tx3_demph)
@@ -468,3 +559,114 @@  void vlv_phy_reset_lanes(struct intel_encoder *encoder)
 	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(port), 0x00e00060);
 	mutex_unlock(&dev_priv->sb_lock);
 }
+
+static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv,
+				 enum pipe pipe)
+{
+	u32 reg_val;
+
+	/*
+	 * PLLB opamp always calibrates to max value of 0x3f, force enable it
+	 * and set it to a reasonable value instead.
+	 */
+	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
+	reg_val &= 0xffffff00;
+	reg_val |= 0x00000030;
+	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
+
+	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
+	reg_val &= 0x8cffffff;
+	reg_val = 0x8c000000;
+	vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
+
+	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
+	reg_val &= 0xffffff00;
+	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
+
+	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
+	reg_val &= 0x00ffffff;
+	reg_val |= 0xb0000000;
+	vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
+}
+
+void vlv_phy_prepare_pll(struct intel_crtc *crtc, u32 bestn,
+			 u32 bestm1, u32 bestm2, u32 bestp1, u32 bestp2,
+			 int port_clock, bool dp)
+{
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	int pipe = crtc->pipe;
+	u32 mdiv;
+	u32 coreclk, reg_val;
+
+	mutex_lock(&dev_priv->sb_lock);
+
+	/* See eDP HDMI DPIO driver vbios notes doc */
+
+	/* PLL B needs special handling */
+	if (pipe == PIPE_B)
+		vlv_pllb_recal_opamp(dev_priv, pipe);
+
+	/* Set up Tx target for periodic Rcomp update */
+	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f);
+
+	/* Disable target IRef on PLL */
+	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe));
+	reg_val &= 0x00ffffff;
+	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val);
+
+	/* Disable fast lock */
+	vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610);
+
+	/* Set idtafcrecal before PLL is enabled */
+	mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
+	mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
+	mdiv |= ((bestn << DPIO_N_SHIFT));
+	mdiv |= (1 << DPIO_K_SHIFT);
+
+	/*
+	 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
+	 * but we don't support that).
+	 * Note: don't use the DAC post divider as it seems unstable.
+	 */
+	mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
+	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
+
+	mdiv |= DPIO_ENABLE_CALIBRATION;
+	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
+
+	/* Set HBR and RBR LPF coefficients */
+	if (port_clock == 162000 || !dp)
+		vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
+				 0x009f0003);
+	else
+		vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
+				 0x00d0000f);
+
+	if (dp) {
+		/* Use SSC source */
+		if (pipe == PIPE_A)
+			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
+					 0x0df40000);
+		else
+			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
+					 0x0df70000);
+	} else { /* HDMI or VGA */
+		/* Use bend source */
+		if (pipe == PIPE_A)
+			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
+					 0x0df70000);
+		else
+			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
+					 0x0df40000);
+	}
+
+	coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe));
+	coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
+	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
+	    intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))
+		coreclk |= 0x01000000;
+	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk);
+
+	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000);
+	mutex_unlock(&dev_priv->sb_lock);
+}