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
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
*/
#include "drm/drm_edid.h"
#include "msm_kms.h"
#include "edp.h"
struct edp_connector {
struct drm_connector base;
struct msm_edp *edp;
};
#define to_edp_connector(x) container_of(x, struct edp_connector, base)
static enum drm_connector_status edp_connector_detect(
struct drm_connector *connector, bool force)
{
struct edp_connector *edp_connector = to_edp_connector(connector);
struct msm_edp *edp = edp_connector->edp;
DBG("");
return msm_edp_ctrl_panel_connected(edp->ctrl) ?
connector_status_connected : connector_status_disconnected;
}
static void edp_connector_destroy(struct drm_connector *connector)
{
struct edp_connector *edp_connector = to_edp_connector(connector);
DBG("");
drm_connector_cleanup(connector);
kfree(edp_connector);
}
static int edp_connector_get_modes(struct drm_connector *connector)
{
struct edp_connector *edp_connector = to_edp_connector(connector);
struct msm_edp *edp = edp_connector->edp;
struct edid *drm_edid = NULL;
int ret = 0;
DBG("");
ret = msm_edp_ctrl_get_panel_info(edp->ctrl, connector, &drm_edid);
if (ret)
return ret;
drm_connector_update_edid_property(connector, drm_edid);
if (drm_edid)
ret = drm_add_edid_modes(connector, drm_edid);
return ret;
}
static int edp_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct edp_connector *edp_connector = to_edp_connector(connector);
struct msm_edp *edp = edp_connector->edp;
struct msm_drm_private *priv = connector->dev->dev_private;
struct msm_kms *kms = priv->kms;
long actual, requested;
requested = 1000 * mode->clock;
actual = kms->funcs->round_pixclk(kms,
requested, edp_connector->edp->encoder);
DBG("requested=%ld, actual=%ld", requested, actual);
if (actual != requested)
return MODE_CLOCK_RANGE;
if (!msm_edp_ctrl_pixel_clock_valid(
edp->ctrl, mode->clock, NULL, NULL))
return MODE_CLOCK_RANGE;
/* Invalidate all modes if color format is not supported */
if (connector->display_info.bpc > 8)
return MODE_BAD;
return MODE_OK;
}
static const struct drm_connector_funcs edp_connector_funcs = {
.detect = edp_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = edp_connector_destroy,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
static const struct drm_connector_helper_funcs edp_connector_helper_funcs = {
.get_modes = edp_connector_get_modes,
.mode_valid = edp_connector_mode_valid,
};
/* initialize connector */
struct drm_connector *msm_edp_connector_init(struct msm_edp *edp)
{
struct drm_connector *connector = NULL;
struct edp_connector *edp_connector;
int ret;
edp_connector = kzalloc(sizeof(*edp_connector), GFP_KERNEL);
if (!edp_connector)
return ERR_PTR(-ENOMEM);
edp_connector->edp = edp;
connector = &edp_connector->base;
ret = drm_connector_init(edp->dev, connector, &edp_connector_funcs,
DRM_MODE_CONNECTOR_eDP);
if (ret)
return ERR_PTR(ret);
drm_connector_helper_add(connector, &edp_connector_helper_funcs);
/* We don't support HPD, so only poll status until connected. */
connector->polled = DRM_CONNECTOR_POLL_CONNECT;
/* Display driver doesn't support interlace now. */
connector->interlace_allowed = false;
connector->doublescan_allowed = false;
drm_connector_attach_encoder(connector, edp->encoder);
return connector;
}
|
