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
|
// SPDX-License-Identifier: MIT
/*
* Copyright © 2018 Intel Corporation
*/
#include <drm/drm_mipi_dsi.h>
#include "i915_drv.h"
#include "intel_dsi.h"
#include "intel_panel.h"
void intel_dsi_wait_panel_power_cycle(struct intel_dsi *intel_dsi)
{
ktime_t panel_power_on_time;
s64 panel_power_off_duration;
panel_power_on_time = ktime_get_boottime();
panel_power_off_duration = ktime_ms_delta(panel_power_on_time,
intel_dsi->panel_power_off_time);
if (panel_power_off_duration < (s64)intel_dsi->panel_pwr_cycle_delay)
msleep(intel_dsi->panel_pwr_cycle_delay - panel_power_off_duration);
}
void intel_dsi_shutdown(struct intel_encoder *encoder)
{
struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
intel_dsi_wait_panel_power_cycle(intel_dsi);
}
int intel_dsi_bitrate(const struct intel_dsi *intel_dsi)
{
int bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format);
if (WARN_ON(bpp < 0))
bpp = 16;
return intel_dsi->pclk * bpp / intel_dsi->lane_count;
}
int intel_dsi_tlpx_ns(const struct intel_dsi *intel_dsi)
{
switch (intel_dsi->escape_clk_div) {
default:
case 0:
return 50;
case 1:
return 100;
case 2:
return 200;
}
}
int intel_dsi_get_modes(struct drm_connector *connector)
{
return intel_panel_get_modes(to_intel_connector(connector));
}
enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_i915_private *dev_priv = to_i915(connector->dev);
struct intel_connector *intel_connector = to_intel_connector(connector);
const struct drm_display_mode *fixed_mode =
intel_panel_fixed_mode(intel_connector, mode);
int max_dotclk = to_i915(connector->dev)->display.cdclk.max_dotclk_freq;
enum drm_mode_status status;
drm_dbg_kms(&dev_priv->drm, "\n");
status = intel_panel_mode_valid(intel_connector, mode);
if (status != MODE_OK)
return status;
if (fixed_mode->clock > max_dotclk)
return MODE_CLOCK_HIGH;
return intel_mode_valid_max_plane_size(dev_priv, mode, false);
}
struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi,
const struct mipi_dsi_host_ops *funcs,
enum port port)
{
struct intel_dsi_host *host;
struct mipi_dsi_device *device;
host = kzalloc(sizeof(*host), GFP_KERNEL);
if (!host)
return NULL;
host->base.ops = funcs;
host->intel_dsi = intel_dsi;
host->port = port;
/*
* We should call mipi_dsi_host_register(&host->base) here, but we don't
* have a host->dev, and we don't have OF stuff either. So just use the
* dsi framework as a library and hope for the best. Create the dsi
* devices by ourselves here too. Need to be careful though, because we
* don't initialize any of the driver model devices here.
*/
device = kzalloc(sizeof(*device), GFP_KERNEL);
if (!device) {
kfree(host);
return NULL;
}
device->host = &host->base;
host->device = device;
return host;
}
enum drm_panel_orientation
intel_dsi_get_panel_orientation(struct intel_connector *connector)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
enum drm_panel_orientation orientation;
orientation = connector->panel.vbt.dsi.orientation;
if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
return orientation;
orientation = dev_priv->display.vbt.orientation;
if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
return orientation;
return DRM_MODE_PANEL_ORIENTATION_NORMAL;
}
|
