From 13cf550448b58abf8f44f5d6a560f2d20871c965 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 18 Jun 2014 11:29:35 +1000 Subject: [PATCH] drm/i915: rework digital port IRQ handling (v2) The digital ports from Ironlake and up have the ability to distinguish between long and short HPD pulses. Displayport 1.1 only uses the short form to request link retraining usually, so we haven't really needed support for it until now. However with DP 1.2 MST we need to handle the short irqs on their own outside the modesetting locking the long hpd's involve. This patch adds the framework to distinguish between short/long to the current code base, to lay the basis for future DP 1.2 MST work. This should mean we get better bisectability in case of regression due to the new irq handling. v2: add GM45 support (untested, due to lack of hw) Signed-off-by: Dave Airlie Reviewed-by: Todd Previte [danvet: Fix conflicts in i915_irq.c with Oscar Mateo's irq handling race fixes and a trivial one in intel_drv.h with the psr code.] Signed-off-by: Daniel Vetter --- Reading git-format-patch failed