[Intel-gfx] [PATCH] drm/i915: Check VBT for port presence in addition to the strap on VLV/CHV

[Ville Syrjälä]

On Fri, Jun 03, 2016 at 12:17:43PM +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Apparently some CHV boards failed to hook up the port presence straps
> for HDMI ports as well (earlier we assumed this problem only affected
> eDP ports). So let's check the VBT in addition to the strap, and if
> either one claims that the port is present go ahead and register the
> relevant connector.
> 
> While at it, change port D to register DP before HDMI as we do for ports
> B and C since
> commit 457c52d87e5d ("drm/i915: Only ignore eDP ports that are connected")
> 
> Also print a debug message when we register a HDMI connector to aid
> in diagnosing missing/incorrect ports. We already had such a print for
> DP/eDP.
> 
> v2: Improve the comment in the code a bit, note the port D change in
>     the commit message
> 
> Cc: Radoslav Duda <radosd at radosd.com>
> Tested-by: Radoslav Duda <radosd at radosd.com>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96321
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---

Pushed to dinq. Thanks for the review.

-- 
Ville Syrjälä
Intel OTC