tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: MIT
2/*
3 * Copyright © 2024 Intel Corporation
4 */
5
6#include <linux/workqueue.h>
7
8#include "intel_display_core.h"
9#include "intel_display_types.h"
10#include "intel_encoder.h"
11
12static void intel_encoder_link_check_work_fn(struct work_struct *work)
13{
14 struct intel_encoder *encoder =
15 container_of(work, typeof(*encoder), link_check_work.work);
16
17 encoder->link_check(encoder);
18}
19
20void intel_encoder_link_check_init(struct intel_encoder *encoder,
21 void (*callback)(struct intel_encoder *encoder))
22{
23 INIT_DELAYED_WORK(&encoder->link_check_work, intel_encoder_link_check_work_fn);
24 encoder->link_check = callback;
25}
26
27void intel_encoder_link_check_flush_work(struct intel_encoder *encoder)
28{
29 cancel_delayed_work_sync(&encoder->link_check_work);
30}
31
32void intel_encoder_link_check_queue_work(struct intel_encoder *encoder, int delay_ms)
33{
34 struct intel_display *display = to_intel_display(encoder);
35
36 mod_delayed_work(display->wq.unordered,
37 &encoder->link_check_work, msecs_to_jiffies(delay_ms));
38}
39
40void intel_encoder_suspend_all(struct intel_display *display)
41{
42 struct intel_encoder *encoder;
43
44 if (!HAS_DISPLAY(display))
45 return;
46
47 /*
48 * TODO: check and remove holding the modeset locks if none of
49 * the encoders depends on this.
50 */
51 drm_modeset_lock_all(display->drm);
52 for_each_intel_encoder(display->drm, encoder)
53 if (encoder->suspend)
54 encoder->suspend(encoder);
55 drm_modeset_unlock_all(display->drm);
56
57 for_each_intel_encoder(display->drm, encoder)
58 if (encoder->suspend_complete)
59 encoder->suspend_complete(encoder);
60}
61
62void intel_encoder_shutdown_all(struct intel_display *display)
63{
64 struct intel_encoder *encoder;
65
66 if (!HAS_DISPLAY(display))
67 return;
68
69 /*
70 * TODO: check and remove holding the modeset locks if none of
71 * the encoders depends on this.
72 */
73 drm_modeset_lock_all(display->drm);
74 for_each_intel_encoder(display->drm, encoder)
75 if (encoder->shutdown)
76 encoder->shutdown(encoder);
77 drm_modeset_unlock_all(display->drm);
78
79 for_each_intel_encoder(display->drm, encoder)
80 if (encoder->shutdown_complete)
81 encoder->shutdown_complete(encoder);
82}