drm/i915: remove ironlake bits from lpt_pch_enable

Since this function will only run on Haswell/LPT and newer.
Signed-off-by: NPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_display.c

@@ -3170,7 +3170,6 @@ static void lpt_pch_enable(struct drm_crtc *crtc)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
-	u32 reg, temp;
 
 	assert_transcoder_disabled(dev_priv, pipe);
 
@@ -3191,34 +3190,7 @@ static void lpt_pch_enable(struct drm_crtc *crtc)
 	 * enable sequence. */
 	intel_enable_pch_pll(intel_crtc);
 
-	if (HAS_PCH_LPT(dev)) {
-		DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n");
-		lpt_program_iclkip(crtc);
-	} else if (HAS_PCH_CPT(dev)) {
-		u32 sel;
-
-		temp = I915_READ(PCH_DPLL_SEL);
-		switch (pipe) {
-		default:
-		case 0:
-			temp |= TRANSA_DPLL_ENABLE;
-			sel = TRANSA_DPLLB_SEL;
-			break;
-		case 1:
-			temp |= TRANSB_DPLL_ENABLE;
-			sel = TRANSB_DPLLB_SEL;
-			break;
-		case 2:
-			temp |= TRANSC_DPLL_ENABLE;
-			sel = TRANSC_DPLLB_SEL;
-			break;
-		}
-		if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B)
-			temp |= sel;
-		else
-			temp &= ~sel;
-		I915_WRITE(PCH_DPLL_SEL, temp);
-	}
+	lpt_program_iclkip(crtc);
 
 	/* set transcoder timing, panel must allow it */
 	assert_panel_unlocked(dev_priv, pipe);
@@ -3231,45 +3203,6 @@ static void lpt_pch_enable(struct drm_crtc *crtc)
 	I915_WRITE(TRANS_VSYNC(pipe),  I915_READ(VSYNC(pipe)));
 	I915_WRITE(TRANS_VSYNCSHIFT(pipe),  I915_READ(VSYNCSHIFT(pipe)));
 
-	if (!IS_HASWELL(dev))
-		intel_fdi_normal_train(crtc);
-
-	/* For PCH DP, enable TRANS_DP_CTL */
-	if (HAS_PCH_CPT(dev) &&
-	    (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
-	     intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
-		u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5;
-		reg = TRANS_DP_CTL(pipe);
-		temp = I915_READ(reg);
-		temp &= ~(TRANS_DP_PORT_SEL_MASK |
-			  TRANS_DP_SYNC_MASK |
-			  TRANS_DP_BPC_MASK);
-		temp |= (TRANS_DP_OUTPUT_ENABLE |
-			 TRANS_DP_ENH_FRAMING);
-		temp |= bpc << 9; /* same format but at 11:9 */
-
-		if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
-			temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
-		if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
-			temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
-
-		switch (intel_trans_dp_port_sel(crtc)) {
-		case PCH_DP_B:
-			temp |= TRANS_DP_PORT_SEL_B;
-			break;
-		case PCH_DP_C:
-			temp |= TRANS_DP_PORT_SEL_C;
-			break;
-		case PCH_DP_D:
-			temp |= TRANS_DP_PORT_SEL_D;
-			break;
-		default:
-			BUG();
-		}
-
-		I915_WRITE(reg, temp);
-	}
-
 	intel_enable_transcoder(dev_priv, pipe);
 }