Commit 10603caa authored Aug 26, 2013 by Chris Wilson Committed by Daniel Vetter Sep 03, 2013

drm/i915: Apply the force-detect VGA w/a to Valleyview



It appears that Valleyview shares its VGA encoder with more recent
siblings and requires the same forced detection cycle after a hardware
reset before we can rely on hotplugging.

Reported-and-tested-by: kobeqin <kobe.qin@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67733


Tested-by: kobeqin <kobe.qin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Check for gen >= 5 insted, acked by Chris.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 97e4eed7

drivers/gpu/drm/i915/intel_crt.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -688,7 +688,7 @@ static void intel_crt_reset(struct drm_connector *connector)
		struct drm_i915_private *dev_priv = dev->dev_private;
		struct intel_crt *crt = intel_attached_crt(connector);

		if (HAS_PCH_SPLIT(dev)) {
		if (INTEL_INFO(dev)->gen >= 5) {
		u32 adpa;

		adpa = I915_READ(crt->adpa_reg);