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drm/i915: Don't pretend SDVO hotplug works on 915

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915 doens't support hotplug at all, so we shouldn't try to pretend
otherwise in the SDVO code.

Note: i915 does have hotplug support in hw, we simply never enabled it
in i915.ko: There's only one hpd bit for all outputs, so not worth the
bother to add this special case for this rather old platform.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Clarify that only i915.ko doesn't support hpd on i915g.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2015-01-09 14:21:15 +02:00 committed by Daniel Vetter
parent d2182a6608
commit 1d83d957e6
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/intel_sdvo.c
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@ -1617,6 +1617,9 @@ static uint16_t intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
struct drm_device *dev = intel_sdvo->base.base.dev;
uint16_t hotplug;
if (!I915_HAS_HOTPLUG(dev))
return 0;
/* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
* on the line. */
if (IS_I945G(dev) || IS_I945GM(dev))