linux-kernel - [ 119/173] drm/i915: drop unnecessary check from fdi_link

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Date:	Fri, 28 Dec 2012 20:05:29 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Paulo Zanoni <paulo.r.zanoni@...el.com>
Subject: [ 119/173] drm/i915: drop unnecessary check from fdi_link_train code

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Daniel Vetter <daniel.vetter@...ll.ch>

commit 8f5718a6d9a29bf1f51910c6b32bd0244f905303 upstream.

They are all written for a specific north disaplay->pch combination.
So stop pretending otherwise.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@...el.com>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/gpu/drm/i915/intel_display.c |   14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2b63859..25a3ed6 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2490,11 +2490,9 @@ static void ironlake_fdi_link_train(struct drm_crtc *crtc)
 	udelay(150);
 
 	/* Ironlake workaround, enable clock pointer after FDI enable*/
-	if (HAS_PCH_IBX(dev)) {
-		I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
-		I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
-			   FDI_RX_PHASE_SYNC_POINTER_EN);
-	}
+	I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
+	I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
+		   FDI_RX_PHASE_SYNC_POINTER_EN);
 
 	reg = FDI_RX_IIR(pipe);
 	for (tries = 0; tries < 5; tries++) {
@@ -2600,8 +2598,7 @@ static void gen6_fdi_link_train(struct drm_crtc *crtc)
 	POSTING_READ(reg);
 	udelay(150);
 
-	if (HAS_PCH_CPT(dev))
-		cpt_phase_pointer_enable(dev, pipe);
+	cpt_phase_pointer_enable(dev, pipe);
 
 	for (i = 0; i < 4; i++) {
 		reg = FDI_TX_CTL(pipe);
@@ -2735,8 +2732,7 @@ static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
 	POSTING_READ(reg);
 	udelay(150);
 
-	if (HAS_PCH_CPT(dev))
-		cpt_phase_pointer_enable(dev, pipe);
+	cpt_phase_pointer_enable(dev, pipe);
 
 	for (i = 0; i < 4; i++) {
 		reg = FDI_TX_CTL(pipe);


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