[Intel-gfx] [PATCHv5] drm/i915: Enable SDVO hotplug interrupts for HDMI and DVI

[Keith Packard]

On Wed, 21 Sep 2011 16:18:55 +0100, Simon Farnsworth <simon.farnsworth at onelan.co.uk> wrote:

> I'm ANDing the value returned by hardware with 3 - I should be ANDing it with 
> an appropriate ~3. The rest of the code (setting those bits in 
> intel_sdvo_dvi_init based on what functions I have) should be OK.

Oh, that's a good point. I'd say that you shouldn't change any bits you
don't know about.

So, fetch the current active hotplug value and then clear bits 0 and 1
so that we change only those.

> I would still like someone with the spec to go over what I'm doing - this 
> seems appropriate, but *all* I have to test against are two different 
> motherboards with "integrated" DVI-D that turns out to be an SDVO
> device.

Yeah, I've been digging around for an SDVO spec, but it's buried as it
contains a pile of stuff for macro-vision and other content protection
bits.

-- 
keith.packard at intel.com
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