[Intel-gfx] [PATCH] drm/i915: Set activation periods as 64 cdclk for VGA hot plug detection on G4x platform

[Eric Anholt]

On Wed, 2009-05-13 at 14:46 +0800, Ma Ling wrote:
> Although spec say CRT_HOTPLUG_ACTIVATION_PERIOD_64(1 << 8) is only useful for mobile platform
> it is also required to detect vga on G4x platform correctly. Have tested G45/G43/Q45 platforms
> , no regression on them.
> 
> It fixed bug #21120 and part of bug #21210

Applied, but please follow existing style for commit messages (in
particular, 80 columns)

drm/i915: Use the GM45 VGA hotplug workaround on G45 as well.

Although spec say CRT_HOTPLUG_ACTIVATION_PERIOD_64 is only useful for
mobile platform, it is also required to detect vga on G4x desktops correctly.
Tested on G45/G43/Q45 platforms with no regressions.

It fixed freedesktop.org bug #21120 and part of bug #21210

Signed-off-by: Ma Ling <ling.ma at intel.com>
Signed-off-by: Eric Anholt <eric at anholt.net>

-- 
Eric Anholt
eric at anholt.net                         eric.anholt at intel.com


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