Re: [PATCH v2 6/8] drm/i915: Add function to output Aksv over GMBUS

2017-12-01 Thread Ville Syrjälä
On Fri, Dec 01, 2017 at 02:17:19PM -0500, Sean Paul wrote: > On Fri, Dec 1, 2017 at 2:06 PM, Ville Syrjälä > wrote: > > On Fri, Dec 01, 2017 at 12:20:28PM -0500, Sean Paul wrote: > >> Once the Aksv is available in the PCH, we need to get it on the wire to > >> the receiver via DDC. The hardware do

Re: [PATCH v2 6/8] drm/i915: Add function to output Aksv over GMBUS

2017-12-01 Thread Sean Paul
On Fri, Dec 1, 2017 at 2:06 PM, Ville Syrjälä wrote: > On Fri, Dec 01, 2017 at 12:20:28PM -0500, Sean Paul wrote: >> Once the Aksv is available in the PCH, we need to get it on the wire to >> the receiver via DDC. The hardware doesn't allow us to read the value >> directly, so we need to tell GMBU

Re: [PATCH v2 6/8] drm/i915: Add function to output Aksv over GMBUS

2017-12-01 Thread Ville Syrjälä
On Fri, Dec 01, 2017 at 12:20:28PM -0500, Sean Paul wrote: > Once the Aksv is available in the PCH, we need to get it on the wire to > the receiver via DDC. The hardware doesn't allow us to read the value > directly, so we need to tell GMBUS to source the Aksv internally and > send it to the right

[PATCH v2 6/8] drm/i915: Add function to output Aksv over GMBUS

2017-12-01 Thread Sean Paul
Once the Aksv is available in the PCH, we need to get it on the wire to the receiver via DDC. The hardware doesn't allow us to read the value directly, so we need to tell GMBUS to source the Aksv internally and send it to the right offset on the receiver. The way we do this is to initiate an index