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@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
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@ -161,7 +161,7 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
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hotplug_en &= CRT_FORCE_HOTPLUG_MASK;
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hotplug_en |= CRT_HOTPLUG_FORCE_DETECT;
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if (IS_GM45(dev))
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if (IS_G4X(dev))
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hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
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hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
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