intel_hpd_init — initializes and enables hpd support
|struct drm_i915_private * dev_priv|
This function enables the hotplug support. It requires that interrupts have
already been enabled with
intel_irq_init_hw. From this point on hotplug and
poll request can run concurrently to other code, so locking rules must be
This is a separate step from interrupt enabling to simplify the locking rules in the driver load and resume code.