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 * @link: instance of link module
36 * @connector: double pointer to display connector
37 * @minor: pointer to drm minor number after device registration
38 * return: pointer to allocated debug module data
39 *
40 * This function sets up the debug module and provides a way
41 * for debugfs input to be communicated with existing modules
42 */
43 struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
44 struct dp_link *link,
45 struct drm_connector *connector,
46 struct drm_minor *minor);
47
48 /**
49 * dp_debug_put()
50 *
51 * Cleans up dp_debug instance
52 *
53 * @dp_debug: instance of dp_debug
54 */
55 void dp_debug_put(struct dp_debug *dp_debug);
56
57 #else
58
59 static inline
dp_debug_get(struct device * dev,struct dp_panel * panel,struct dp_link * link,struct drm_connector * connector,struct drm_minor * minor)60 struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
61 struct dp_link *link,
62 struct drm_connector *connector, struct drm_minor *minor)
63 {
64 return ERR_PTR(-EINVAL);
65 }
66
dp_debug_put(struct dp_debug * dp_debug)67 static inline void dp_debug_put(struct dp_debug *dp_debug)
68 {
69 }
70
71 #endif /* defined(CONFIG_DEBUG_FS) */
72
73 #endif /* _DP_DEBUG_H_ */
74
