[Intel-gfx] [PATCH] drm/i915: Don't sanitize frame start delay if the pipe is off

[Ville Syrjälä]

On Wed, Nov 15, 2017 at 09:13:28PM +0000, Chris Wilson wrote:
> Quoting Ville Syrjala (2017-11-15 20:04:42)
> > From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > 
> > Avoid touching PIPECONF in intel_sanitize_crtc() unless the pipe is
> > actually on. Should cure some unclaimed register accesses.
> + during reset, as we are rather cavalier in our approach to powerdomain
> management.

Amended, and pushed. Thanks.

> 
> > We don't have to sanitize this if the pipe is off since we will
> > overwrite the frame start delay anyway when turning the pipe on.
> > 
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102249
> > Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
> 
> Let's not even get started on the handling of modesets vs display reset.
> -Chris

-- 
Ville Syrjälä
Intel OTC