[PATCH] [RFC] drm/i915/dp: add support for load detect Apple DP->VGA dongles

2014-06-19 Thread Daniel Vetter
On Fri, Jun 06, 2014 at 12:57:46PM +0300, Jani Nikula wrote: > On Fri, 06 Jun 2014, Dave Airlie wrote: > > From: Dave Airlie > > > > The DP1.2 spec has some bits for forced load sensing on VGA dongles, > > however the apple dongle I have doesn't do DP 1.2 yet, so I dug into > > its vendor specifi

[PATCH] [RFC] drm/i915/dp: add support for load detect Apple DP->VGA dongles

2014-06-06 Thread Jani Nikula
On Fri, 06 Jun 2014, Dave Airlie wrote: > From: Dave Airlie > > The DP1.2 spec has some bits for forced load sensing on VGA dongles, > however the apple dongle I have doesn't do DP 1.2 yet, so I dug into > its vendor specific area and found a register that seems to correspond > to load detected o

[PATCH] [RFC] drm/i915/dp: add support for load detect Apple DP->VGA dongles

2014-06-06 Thread Dave Airlie
From: Dave Airlie The DP1.2 spec has some bits for forced load sensing on VGA dongles, however the apple dongle I have doesn't do DP 1.2 yet, so I dug into its vendor specific area and found a register that seems to correspond to load detected on the outputs. The main reason I need this was at L