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1/* SPDX-License-Identifier: MIT */
2/* Copyright © 2025 Intel Corporation x*/
3
4#ifndef __DISPLAY_PARENT_INTERFACE_H__
5#define __DISPLAY_PARENT_INTERFACE_H__
6
7#include <linux/types.h>
8
9struct drm_device;
10struct ref_tracker;
11
12struct intel_display_rpm_interface {
13 struct ref_tracker *(*get)(const struct drm_device *drm);
14 struct ref_tracker *(*get_raw)(const struct drm_device *drm);
15 struct ref_tracker *(*get_if_in_use)(const struct drm_device *drm);
16 struct ref_tracker *(*get_noresume)(const struct drm_device *drm);
17
18 void (*put)(const struct drm_device *drm, struct ref_tracker *wakeref);
19 void (*put_raw)(const struct drm_device *drm, struct ref_tracker *wakeref);
20 void (*put_unchecked)(const struct drm_device *drm);
21
22 bool (*suspended)(const struct drm_device *drm);
23 void (*assert_held)(const struct drm_device *drm);
24 void (*assert_block)(const struct drm_device *drm);
25 void (*assert_unblock)(const struct drm_device *drm);
26};
27
28/**
29 * struct intel_display_parent_interface - services parent driver provides to display
30 *
31 * The parent, or core, driver provides a pointer to this structure to display
32 * driver when calling intel_display_device_probe(). The display driver uses it
33 * to access services provided by the parent driver. The structure may contain
34 * sub-struct pointers to group function pointers by functionality.
35 *
36 * All function and sub-struct pointers must be initialized and callable unless
37 * explicitly marked as "optional" below. The display driver will only NULL
38 * check the optional pointers.
39 */
40struct intel_display_parent_interface {
41 /** @rpm: Runtime PM functions */
42 const struct intel_display_rpm_interface *rpm;
43};
44
45#endif