Re: [Intel-gfx] [PATCH 2/3] drm/i915: implement IBX hdmi transcoder select workaround

2012-05-30 Thread Chris Wilson
On Wed, 30 May 2012 12:31:57 +0200, Daniel Vetter wrote: > Bspec Vol 3, Part 3, Section 3.8.1.1, bit 30: > > "[DevIBX] Writing to this bit only takes effect when port is enabled. > Due to hardware issue it is required that this bit be cleared when port > is disabled. To clear this bit software m

[Intel-gfx] [PATCH 2/3] drm/i915: implement IBX hdmi transcoder select workaround

2012-05-30 Thread Daniel Vetter
Bspec Vol 3, Part 3, Section 3.8.1.1, bit 30: "[DevIBX] Writing to this bit only takes effect when port is enabled. Due to hardware issue it is required that this bit be cleared when port is disabled. To clear this bit software must temporarily enable this port on transcoder A." Unfortunately the