Re: [Intel-gfx] [PATCH v3 7/9] drm/i915: Add function to output Aksv over GMBUS

2017-12-05 Thread Daniel Vetter
On Tue, Dec 05, 2017 at 12:15:06AM -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

[Intel-gfx] [PATCH v3 7/9] drm/i915: Add function to output Aksv over GMBUS

2017-12-04 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