[Intel-gfx] [PATCH 4/6] drm/i915: don't set sink DPMS status on eDP

[Jesse Barnes]

On Mon, 07 Apr 2014 11:36:46 +0300
Jani Nikula <jani.nikula at linux.intel.com> wrote:

> On Sat, 05 Apr 2014, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> > This only applies to external sinks.
> 
> [citation needed]
> 
> eDP 1.3 has SET_POWER_CAPABLE (bit 7) in in DPCD
> EDP_GENERAL_CAPABILITY_REGISTER_1 (register 0x702) which indicates
> whether panel power state can be controlled through DP_SET_POWER. Even
> when the panel is not capable, writing to DP_SET_POWER should have no
> effect on the panel.
> 

This one comes from chromium tree.  I checked the DP spec but obviously
should have checked eDP too!

I mainly added this to get rid of some noise in the logs about aux
timeouts due to these messages.  But on eDP that turned out to be an
unrelated bug, and not due to us sending these messages after all.

So patch withdrawn...

-- 
Jesse Barnes, Intel Open Source Technology Center