1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2019 Intel Corporation
4  */
5 
6 #ifndef __INTEL_HOTPLUG_H__
7 #define __INTEL_HOTPLUG_H__
8 
9 #include <linux/types.h>
10 
11 #include <drm/i915_drm.h>
12 
13 struct drm_i915_private;
14 struct intel_connector;
15 struct intel_encoder;
16 
17 void intel_hpd_poll_init(struct drm_i915_private *dev_priv);
18 enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
19 					       struct intel_connector *connector,
20 					       bool irq_received);
21 void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
22 			   u32 pin_mask, u32 long_mask);
23 void intel_hpd_init(struct drm_i915_private *dev_priv);
24 void intel_hpd_init_work(struct drm_i915_private *dev_priv);
25 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
26 enum hpd_pin intel_hpd_pin_default(struct drm_i915_private *dev_priv,
27 				   enum port port);
28 bool intel_hpd_disable(struct drm_i915_private *dev_priv, enum hpd_pin pin);
29 void intel_hpd_enable(struct drm_i915_private *dev_priv, enum hpd_pin pin);
30 
31 #endif /* __INTEL_HOTPLUG_H__ */
32