Signed-off-by: Eugeni Dodonov <eugeni.dodo...@intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 09c18f8..0324250 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1475,6 +1475,16 @@ static void intel_disable_pipe(struct drm_i915_private
*dev_priv,
I915_WRITE(reg, val & ~PIPECONF_ENABLE);
intel_wait_for_pipe_off(dev_priv->dev, pipe);
+
+ /* On HSW, disable pipe DDI function the pipe */
+ if (IS_HASWELL(dev_priv->dev)) {
+ val = I915_READ(DDI_FUNC_CTL(pipe));
+ val &= ~PIPE_DDI_PORT_MASK;
+ val &= ~PIPE_DDI_FUNC_ENABLE;
+ I915_WRITE(DDI_FUNC_CTL(pipe),
+ val);
+ }
+
}
/*
--
1.7.9.5
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