diff options
| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2012-10-15 22:51:32 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-10-18 23:21:43 +0400 |
| commit | a836bdf9ae5aa3b100c8cdd04aae5bb9c0340145 (patch) | |
| tree | b2c299ebb6e93efbb032aec4e33f6b47e3276700 /drivers/gpu/drm/i915/intel_ddi.c | |
| parent | 247d89f62230f3369aeaab85dca34978f79dcb86 (diff) | |
| download | linux-a836bdf9ae5aa3b100c8cdd04aae5bb9c0340145.tar.xz | |
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.c | 11 |
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 510317270ad1..601ffc277a35 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); } |