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6
7#include <linux/kernel.h>
8#include <linux/module.h>
9#include <linux/platform_device.h>
10#include <linux/slab.h>
11#include <linux/of.h>
12#include <linux/of_graph.h>
13
14#include <drm/drm_bridge.h>
15#include <drm/drm_panel.h>
16
17#include "dss.h"
18#include "omapdss.h"
19
20int omapdss_device_init_output(struct omap_dss_device *out,
21 struct drm_bridge *local_bridge)
22{
23 struct device_node *remote_node;
24 int ret;
25
26 remote_node = of_graph_get_remote_node(out->dev->of_node,
27 out->of_port, 0);
28 if (!remote_node) {
29 dev_dbg(out->dev, "failed to find video sink\n");
30 return 0;
31 }
32
33 out->bridge = of_drm_find_bridge(remote_node);
34 out->panel = of_drm_find_panel(remote_node);
35 if (IS_ERR(out->panel))
36 out->panel = NULL;
37
38 of_node_put(remote_node);
39
40 if (out->panel) {
41 struct drm_bridge *bridge;
42
43 bridge = drm_panel_bridge_add(out->panel);
44 if (IS_ERR(bridge)) {
45 dev_err(out->dev,
46 "unable to create panel bridge (%ld)\n",
47 PTR_ERR(bridge));
48 ret = PTR_ERR(bridge);
49 goto error;
50 }
51
52 out->bridge = bridge;
53 }
54
55 if (local_bridge) {
56 if (!out->bridge) {
57 ret = -EPROBE_DEFER;
58 goto error;
59 }
60
61 out->next_bridge = out->bridge;
62 out->bridge = local_bridge;
63 }
64
65 if (!out->bridge) {
66 ret = -EPROBE_DEFER;
67 goto error;
68 }
69
70 return 0;
71
72error:
73 omapdss_device_cleanup_output(out);
74 return ret;
75}
76
77void omapdss_device_cleanup_output(struct omap_dss_device *out)
78{
79 if (out->bridge && out->panel)
80 drm_panel_bridge_remove(out->next_bridge ?
81 out->next_bridge : out->bridge);
82}
83
84void dss_mgr_set_timings(struct omap_dss_device *dssdev,
85 const struct videomode *vm)
86{
87 omap_crtc_dss_set_timings(dssdev->dss->mgr_ops_priv,
88 dssdev->dispc_channel, vm);
89}
90
91void dss_mgr_set_lcd_config(struct omap_dss_device *dssdev,
92 const struct dss_lcd_mgr_config *config)
93{
94 omap_crtc_dss_set_lcd_config(dssdev->dss->mgr_ops_priv,
95 dssdev->dispc_channel, config);
96}
97
98int dss_mgr_enable(struct omap_dss_device *dssdev)
99{
100 return omap_crtc_dss_enable(dssdev->dss->mgr_ops_priv,
101 dssdev->dispc_channel);
102}
103
104void dss_mgr_disable(struct omap_dss_device *dssdev)
105{
106 omap_crtc_dss_disable(dssdev->dss->mgr_ops_priv,
107 dssdev->dispc_channel);
108}
109
110void dss_mgr_start_update(struct omap_dss_device *dssdev)
111{
112 omap_crtc_dss_start_update(dssdev->dss->mgr_ops_priv,
113 dssdev->dispc_channel);
114}
115
116int dss_mgr_register_framedone_handler(struct omap_dss_device *dssdev,
117 void (*handler)(void *), void *data)
118{
119 struct dss_device *dss = dssdev->dss;
120
121 return omap_crtc_dss_register_framedone(dss->mgr_ops_priv,
122 dssdev->dispc_channel,
123 handler, data);
124}
125
126void dss_mgr_unregister_framedone_handler(struct omap_dss_device *dssdev,
127 void (*handler)(void *), void *data)
128{
129 struct dss_device *dss = dssdev->dss;
130
131 omap_crtc_dss_unregister_framedone(dss->mgr_ops_priv,
132 dssdev->dispc_channel,
133 handler, data);
134}
135
