summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i915/intel_ddi.c
diff options
context:
space:
mode:
authorPaulo Zanoni <paulo.r.zanoni@intel.com>2012-10-15 15:51:32 -0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-10-18 21:21:43 +0200
commita836bdf9ae5aa3b100c8cdd04aae5bb9c0340145 (patch)
treeb2c299ebb6e93efbb032aec4e33f6b47e3276700 /drivers/gpu/drm/i915/intel_ddi.c
parent247d89f62230f3369aeaab85dca34978f79dcb86 (diff)
drm/i915: add DP support to intel_ddi_disable_port
Just a missing register. There is no problem to run this code when the output is HDMI. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
-rw-r--r--drivers/gpu/drm/i915/intel_ddi.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 510317270ad..601ffc277a3 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1138,14 +1138,23 @@ void intel_ddi_post_disable(struct intel_encoder *intel_encoder)
struct drm_i915_private *dev_priv = encoder->dev->dev_private;
enum port port = intel_ddi_get_encoder_port(intel_encoder);
uint32_t val;
+ bool wait = false;
val = I915_READ(DDI_BUF_CTL(port));
if (val & DDI_BUF_CTL_ENABLE) {
val &= ~DDI_BUF_CTL_ENABLE;
I915_WRITE(DDI_BUF_CTL(port), val);
- intel_wait_ddi_buf_idle(dev_priv, port);
+ wait = true;
}
+ val = I915_READ(DP_TP_CTL(port));
+ val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK);
+ val |= DP_TP_CTL_LINK_TRAIN_PAT1;
+ I915_WRITE(DP_TP_CTL(port), val);
+
+ if (wait)
+ intel_wait_ddi_buf_idle(dev_priv, port);
+
I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE);
}