From: "Thulasimani,Sivakumar" <sivakumar.thulasimani@xxxxxxxxx> Update the hotplug documentation to explain that hotplug storm is not expected for Display port panels and hence is not handled in current code. v2: update the statements as recommended by Daniel Signed-off-by: Sivakumar Thulasimani <sivakumar.thulasimani@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_hotplug.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_hotplug.c b/drivers/gpu/drm/i915/intel_hotplug.c index bac91a1..3c9171f 100644 --- a/drivers/gpu/drm/i915/intel_hotplug.c +++ b/drivers/gpu/drm/i915/intel_hotplug.c @@ -66,6 +66,14 @@ * while before being re-enabled. The intention is to mitigate issues raising * from broken hardware triggering massive amounts of interrupts and grinding * the system to a halt. + * + * Current implementation expects that hotplug interrupt storm will not be + * seen when display port sink is connected, hence on platforms whose DP + * callback is handled by i915_digport_work_func reenabling of hpd is not + * performed (it was never expected to be disabled in the first place ;) ) + * this is specific to DP sinks handled by this routine and any other display + * such as HDMI or DVI enabled on the same port will have proper logic since + * it will use i915_hotplug_work_func where this logic is handled. */ enum port intel_hpd_pin_to_port(enum hpd_pin pin) -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
