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authorKeith Packard <keithp@keithp.com>2011-05-17 16:13:52 -0700
committerKeith Packard <keithp@keithp.com>2011-05-17 16:20:54 -0700
commit61e499bf05254aca0fab08e2c91643331a15e725 (patch)
tree12213383cbfe94959ca04b6827d3543abf9c106d /drivers/gpu
parenta51f7a66fb5e4af5ec4286baef940d06594b59d2 (diff)
drm/i915: FDI link training broken on Ironlake by Ivybridge integration
Commit 357555c00f8414057f0c12ee3f479f197264123d split out IVB-specific register definitions for FDI link training, but a piece of that commit stopped executing some critical code on Ironlake systems while leaving it running on Sandybridge. Turn that code back on both Ironlake and Sandybridge Signed-off-by: Keith Packard <keithp@keithp.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 81ad654f3544..455d88578ea4 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2056,12 +2056,12 @@ static void intel_fdi_normal_train(struct drm_crtc *crtc)
/* enable normal train */
reg = FDI_TX_CTL(pipe);
temp = I915_READ(reg);
- if (IS_GEN6(dev)) {
- temp &= ~FDI_LINK_TRAIN_NONE;
- temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
- } else if (IS_IVYBRIDGE(dev)) {
+ if (IS_IVYBRIDGE(dev)) {
temp &= ~FDI_LINK_TRAIN_NONE_IVB;
temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
+ } else {
+ temp &= ~FDI_LINK_TRAIN_NONE;
+ temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
}
I915_WRITE(reg, temp);