On Fri, 7 Feb 2014, Jani Nikula wrote:
git://people.freedesktop.org/~airlied/linux drm-next
[ ... snip ... ]
Daniel Vetter (59):
[ ... snip ... ]
drm/i915: dp aux irq support for g4x/vlvThis commit causes all kinds of havoc on my ThinkPad x200s. It results in
[ ... snip ... ]
Not having received any response, I suggest the following for 3.14
Daniel, it's your commit this bisects to...
If we end up having to revert, I'd just touch the has_aux_irq part, for example:
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 5ede4e8..464c047 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -404,7 +404,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, int i, ret, recv_bytes; uint32_t status; int try, precharge, clock = 0;
- bool has_aux_irq = true;
bool has_aux_irq = INTEL_INFO(dev)->gen >= 5; uint32_t timeout;
/* dp aux is extremely sensitive to irq latency, hence request the
That, obviously, works for my system as well. Feel free to add
Reported-and-tested-by: Jiri Kosina jkosina@suse.cz
if you are going with this instead of the revert.