On Thu, 26 Apr 2012 15:21:12 -0300 Eugeni Dodonov <eugeni.dodonov at intel.com> wrote: > Signed-off-by: Eugeni Dodonov <eugeni.dodonov at 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 5be2ff1..b7e50af 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -1627,6 +1627,16 @@ 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); > + } > + > } > > /* Looks like we could just write 0 here? -- Jesse Barnes, Intel Open Source Technology Center