FDI_FE_ERRC_ENABLE);
}
-static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- u32 flags = I915_READ(SOUTH_CHICKEN1);
-
- flags |= FDI_PHASE_SYNC_OVR(pipe);
- I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */
- flags |= FDI_PHASE_SYNC_EN(pipe);
- I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */
- POSTING_READ(SOUTH_CHICKEN1);
-}
-
/* The FDI link training functions for ILK/Ibexpeak. */
static void ironlake_fdi_link_train(struct drm_crtc *crtc)
{
POSTING_READ(reg);
udelay(150);
- if (HAS_PCH_CPT(dev))
- cpt_phase_pointer_enable(dev, pipe);
-
for (i = 0; i < 4; i++) {
reg = FDI_TX_CTL(pipe);
temp = I915_READ(reg);
POSTING_READ(reg);
udelay(150);
- if (HAS_PCH_CPT(dev))
- cpt_phase_pointer_enable(dev, pipe);
-
for (i = 0; i < 4; i++) {
reg = FDI_TX_CTL(pipe);
temp = I915_READ(reg);
}
}
-static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- u32 flags = I915_READ(SOUTH_CHICKEN1);
-
- flags &= ~(FDI_PHASE_SYNC_EN(pipe));
- I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */
- flags &= ~(FDI_PHASE_SYNC_OVR(pipe));
- I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */
- POSTING_READ(SOUTH_CHICKEN1);
-}
static void ironlake_fdi_disable(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
I915_WRITE(FDI_RX_CHICKEN(pipe),
I915_READ(FDI_RX_CHICKEN(pipe) &
~FDI_RX_PHASE_SYNC_POINTER_EN));
- } else if (HAS_PCH_CPT(dev)) {
- cpt_phase_pointer_disable(dev, pipe);
}
/* still set train pattern 1 */