On Thu, Apr 11, 2013 at 04:29:10PM +0200, Daniel Vetter wrote:
> We can only enable the pfit if the pipe. Ensure that this is obied
^
"is disabled" or something?
> with a neat assert.
>
> Also check whether the pfit is off before enabling it - if not we've
> lost track of things somewhere since the pfit is only ever used by the
> lvds output.
>
> Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
> ---
> drivers/gpu/drm/i915/intel_lvds.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_lvds.c
> b/drivers/gpu/drm/i915/intel_lvds.c
> index ca2d903..1ff981f 100644
> --- a/drivers/gpu/drm/i915/intel_lvds.c
> +++ b/drivers/gpu/drm/i915/intel_lvds.c
> @@ -159,6 +159,9 @@ static void intel_pre_enable_lvds(struct intel_encoder
> *encoder)
> if (HAS_PCH_SPLIT(dev) || !enc->pfit_control)
> return;
>
> + WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
> + assert_pipe_disabled(dev_priv, to_intel_crtc(encoder->base.crtc)->pipe);
> +
> /*
> * Enable automatic panel scaling so that non-native modes
> * fill the screen. The panel fitter should only be
> --
> 1.7.10.4
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel OTC
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