1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
* Author: Archit Taneja <archit@ti.com>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <drm/drm_bridge.h>
#include <drm/drm_panel.h>
#include "dss.h"
#include "omapdss.h"
int omapdss_device_init_output(struct omap_dss_device *out,
struct drm_bridge *local_bridge)
{
struct device_node *remote_node;
int ret;
remote_node = of_graph_get_remote_node(out->dev->of_node,
out->of_port, 0);
if (!remote_node) {
dev_dbg(out->dev, "failed to find video sink\n");
return 0;
}
out->next = omapdss_find_device_by_node(remote_node);
out->bridge = of_drm_find_bridge(remote_node);
out->panel = of_drm_find_panel(remote_node);
if (IS_ERR(out->panel))
out->panel = NULL;
of_node_put(remote_node);
if (out->next && out->type != out->next->type) {
dev_err(out->dev, "output type and display type don't match\n");
ret = -EINVAL;
goto error;
}
if (out->panel) {
struct drm_bridge *bridge;
bridge = drm_panel_bridge_add(out->panel);
if (IS_ERR(bridge)) {
dev_err(out->dev,
"unable to create panel bridge (%ld)\n",
PTR_ERR(bridge));
ret = PTR_ERR(bridge);
goto error;
}
out->bridge = bridge;
}
if (local_bridge) {
if (!out->bridge) {
ret = -EPROBE_DEFER;
goto error;
}
out->next_bridge = out->bridge;
out->bridge = local_bridge;
}
if (!out->next && !out->bridge) {
ret = -EPROBE_DEFER;
goto error;
}
return 0;
error:
omapdss_device_cleanup_output(out);
out->next = NULL;
return ret;
}
EXPORT_SYMBOL(omapdss_device_init_output);
void omapdss_device_cleanup_output(struct omap_dss_device *out)
{
if (out->bridge && out->panel)
drm_panel_bridge_remove(out->next_bridge ?
out->next_bridge : out->bridge);
if (out->next)
omapdss_device_put(out->next);
}
EXPORT_SYMBOL(omapdss_device_cleanup_output);
int dss_install_mgr_ops(struct dss_device *dss,
const struct dss_mgr_ops *mgr_ops,
struct omap_drm_private *priv)
{
if (dss->mgr_ops)
return -EBUSY;
dss->mgr_ops = mgr_ops;
dss->mgr_ops_priv = priv;
return 0;
}
EXPORT_SYMBOL(dss_install_mgr_ops);
void dss_uninstall_mgr_ops(struct dss_device *dss)
{
dss->mgr_ops = NULL;
dss->mgr_ops_priv = NULL;
}
EXPORT_SYMBOL(dss_uninstall_mgr_ops);
void dss_mgr_set_timings(struct omap_dss_device *dssdev,
const struct videomode *vm)
{
dssdev->dss->mgr_ops->set_timings(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel, vm);
}
EXPORT_SYMBOL(dss_mgr_set_timings);
void dss_mgr_set_lcd_config(struct omap_dss_device *dssdev,
const struct dss_lcd_mgr_config *config)
{
dssdev->dss->mgr_ops->set_lcd_config(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel, config);
}
EXPORT_SYMBOL(dss_mgr_set_lcd_config);
int dss_mgr_enable(struct omap_dss_device *dssdev)
{
return dssdev->dss->mgr_ops->enable(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel);
}
EXPORT_SYMBOL(dss_mgr_enable);
void dss_mgr_disable(struct omap_dss_device *dssdev)
{
dssdev->dss->mgr_ops->disable(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel);
}
EXPORT_SYMBOL(dss_mgr_disable);
void dss_mgr_start_update(struct omap_dss_device *dssdev)
{
dssdev->dss->mgr_ops->start_update(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel);
}
EXPORT_SYMBOL(dss_mgr_start_update);
int dss_mgr_register_framedone_handler(struct omap_dss_device *dssdev,
void (*handler)(void *), void *data)
{
struct dss_device *dss = dssdev->dss;
return dss->mgr_ops->register_framedone_handler(dss->mgr_ops_priv,
dssdev->dispc_channel,
handler, data);
}
EXPORT_SYMBOL(dss_mgr_register_framedone_handler);
void dss_mgr_unregister_framedone_handler(struct omap_dss_device *dssdev,
void (*handler)(void *), void *data)
{
struct dss_device *dss = dssdev->dss;
dss->mgr_ops->unregister_framedone_handler(dss->mgr_ops_priv,
dssdev->dispc_channel,
handler, data);
}
EXPORT_SYMBOL(dss_mgr_unregister_framedone_handler);
|
