1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
4 */
5
6 #ifndef _DP_DEBUG_H_
7 #define _DP_DEBUG_H_
8
9 #include "dp_panel.h"
10 #include "dp_link.h"
11
12 /**
13 * struct dp_debug
14 * @debug_en: specifies whether debug mode enabled
15 * @vdisplay: used to filter out vdisplay value
16 * @hdisplay: used to filter out hdisplay value
17 * @vrefresh: used to filter out vrefresh value
18 * @tpg_state: specifies whether tpg feature is enabled
19 */
20 struct dp_debug {
21 bool debug_en;
22 int aspect_ratio;
23 int vdisplay;
24 int hdisplay;
25 int vrefresh;
26 };
27
28 #if defined(CONFIG_DEBUG_FS)
29
30 /**
31 * dp_debug_get() - configure and get the DisplayPlot debug module data
32 *
33 * @dev: device instance of the caller
34 * @panel: instance of panel module
35 * @usbpd: instance of usbpd module
36 * @link: instance of link module
37 * @connector: double pointer to display connector
38 * @minor: pointer to drm minor number after device registration
39 * return: pointer to allocated debug module data
40 *
41 * This function sets up the debug module and provides a way
42 * for debugfs input to be communicated with existing modules
43 */
44 struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
45 struct dp_usbpd *usbpd, struct dp_link *link,
46 struct drm_connector *connector,
47 struct drm_minor *minor);
48
49 /**
50 * dp_debug_put()
51 *
52 * Cleans up dp_debug instance
53 *
54 * @dp_debug: instance of dp_debug
55 */
56 void dp_debug_put(struct dp_debug *dp_debug);
57
58 #else
59
60 static inline
dp_debug_get(struct device * dev,struct dp_panel * panel,struct dp_usbpd * usbpd,struct dp_link * link,struct drm_connector * connector,struct drm_minor * minor)61 struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
62 struct dp_usbpd *usbpd, struct dp_link *link,
63 struct drm_connector *connector, struct drm_minor *minor)
64 {
65 return ERR_PTR(-EINVAL);
66 }
67
dp_debug_put(struct dp_debug * dp_debug)68 static inline void dp_debug_put(struct dp_debug *dp_debug)
69 {
70 }
71
72 #endif /* defined(CONFIG_DEBUG_FS) */
73
74 #endif /* _DP_DEBUG_H_ */
75