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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2023 Alexander Warnecke <awarnecke002@hotmail.com>
* Copyright (c) 2023 Manuel Traut <manut@mecka.net>
* Copyright (c) 2023 Dang Huynh <danct12@riseup.net>
*/
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/regulator/consumer.h>
#include <drm/drm_connector.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
struct boe_th101mb31ig002 {
struct drm_panel panel;
struct mipi_dsi_device *dsi;
struct regulator *power;
struct gpio_desc *enable;
struct gpio_desc *reset;
enum drm_panel_orientation orientation;
};
static void boe_th101mb31ig002_reset(struct boe_th101mb31ig002 *ctx)
{
gpiod_direction_output(ctx->reset, 0);
usleep_range(10, 100);
gpiod_direction_output(ctx->reset, 1);
usleep_range(10, 100);
gpiod_direction_output(ctx->reset, 0);
usleep_range(5000, 6000);
}
static int boe_th101mb31ig002_enable(struct drm_panel *panel)
{
struct boe_th101mb31ig002 *ctx = container_of(panel,
struct boe_th101mb31ig002,
panel);
struct mipi_dsi_device *dsi = ctx->dsi;
struct device *dev = &dsi->dev;
int ret;
mipi_dsi_dcs_write_seq(dsi, 0xE0, 0xAB, 0xBA);
mipi_dsi_dcs_write_seq(dsi, 0xE1, 0xBA, 0xAB);
mipi_dsi_dcs_write_seq(dsi, 0xB1, 0x10, 0x01, 0x47, 0xFF);
mipi_dsi_dcs_write_seq(dsi, 0xB2, 0x0C, 0x14, 0x04, 0x50, 0x50, 0x14);
mipi_dsi_dcs_write_seq(dsi, 0xB3, 0x56, 0x53, 0x00);
mipi_dsi_dcs_write_seq(dsi, 0xB4, 0x33, 0x30, 0x04);
mipi_dsi_dcs_write_seq(dsi, 0xB6, 0xB0, 0x00, 0x00, 0x10, 0x00, 0x10,
0x00);
mipi_dsi_dcs_write_seq(dsi, 0xB8, 0x05, 0x12, 0x29, 0x49, 0x48, 0x00,
0x00);
mipi_dsi_dcs_write_seq(dsi, 0xB9, 0x7C, 0x65, 0x55, 0x49, 0x46, 0x36,
0x3B, 0x24, 0x3D, 0x3C, 0x3D, 0x5C, 0x4C,
0x55, 0x47, 0x46, 0x39, 0x26, 0x06, 0x7C,
0x65, 0x55, 0x49, 0x46, 0x36, 0x3B, 0x24,
0x3D, 0x3C, 0x3D, 0x5C, 0x4C, 0x55, 0x47,
0x46, 0x39, 0x26, 0x06);
mipi_dsi_dcs_write_seq(dsi, 0x00, 0xFF, 0x87, 0x12, 0x34, 0x44, 0x44,
0x44, 0x44, 0x98, 0x04, 0x98, 0x04, 0x0F,
0x00, 0x00, 0xC1);
mipi_dsi_dcs_write_seq(dsi, 0xC1, 0x54, 0x94, 0x02, 0x85, 0x9F, 0x00,
0x7F, 0x00, 0x54, 0x00);
mipi_dsi_dcs_write_seq(dsi, 0xC2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11,
0x22, 0x20, 0x44, 0xFF, 0x18, 0x00);
mipi_dsi_dcs_write_seq(dsi, 0xC3, 0x86, 0x46, 0x05, 0x05, 0x1C, 0x1C,
0x1D, 0x1D, 0x02, 0x1F, 0x1F, 0x1E, 0x1E,
0x0F, 0x0F, 0x0D, 0x0D, 0x13, 0x13, 0x11,
0x11, 0x00);
mipi_dsi_dcs_write_seq(dsi, 0xC4, 0x07, 0x07, 0x04, 0x04, 0x1C, 0x1C,
0x1D, 0x1D, 0x02, 0x1F, 0x1F, 0x1E, 0x1E,
0x0E, 0x0E, 0x0C, 0x0C, 0x12, 0x12, 0x10,
0x10, 0x00);
mipi_dsi_dcs_write_seq(dsi, 0xC6, 0x2A, 0x2A);
mipi_dsi_dcs_write_seq(dsi, 0xC8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16);
mipi_dsi_dcs_write_seq(dsi, 0xCA, 0xCB, 0x43);
mipi_dsi_dcs_write_seq(dsi, 0xCD, 0x0E, 0x4B, 0x4B, 0x20, 0x19, 0x6B,
0x06, 0xB3);
mipi_dsi_dcs_write_seq(dsi, 0xD2, 0xE3, 0x2B, 0x38, 0x00);
mipi_dsi_dcs_write_seq(dsi, 0xD4, 0x00, 0x01, 0x00, 0x0E, 0x04, 0x44,
0x08, 0x10, 0x00, 0x00, 0x00);
mipi_dsi_dcs_write_seq(dsi, 0xE6, 0x80, 0x01, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF);
mipi_dsi_dcs_write_seq(dsi, 0xF0, 0x12, 0x03, 0x20, 0x00, 0xFF);
mipi_dsi_dcs_write_seq(dsi, 0xF3, 0x00);
ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
if (ret < 0) {
dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
return ret;
}
msleep(120);
ret = mipi_dsi_dcs_set_display_on(dsi);
if (ret < 0) {
dev_err(dev, "Failed to set panel on: %d\n", ret);
return ret;
}
return 0;
}
static int boe_th101mb31ig002_disable(struct drm_panel *panel)
{
struct boe_th101mb31ig002 *ctx = container_of(panel,
struct boe_th101mb31ig002,
panel);
struct mipi_dsi_device *dsi = ctx->dsi;
struct device *dev = &dsi->dev;
int ret;
ret = mipi_dsi_dcs_set_display_off(dsi);
if (ret < 0)
dev_err(dev, "Failed to set panel off: %d\n", ret);
msleep(120);
ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
if (ret < 0)
dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
return 0;
}
static int boe_th101mb31ig002_unprepare(struct drm_panel *panel)
{
struct boe_th101mb31ig002 *ctx = container_of(panel,
struct boe_th101mb31ig002,
panel);
gpiod_set_value_cansleep(ctx->reset, 1);
gpiod_set_value_cansleep(ctx->enable, 0);
regulator_disable(ctx->power);
return 0;
}
static int boe_th101mb31ig002_prepare(struct drm_panel *panel)
{
struct boe_th101mb31ig002 *ctx = container_of(panel,
struct boe_th101mb31ig002,
panel);
struct device *dev = &ctx->dsi->dev;
int ret;
ret = regulator_enable(ctx->power);
if (ret) {
dev_err(dev, "Failed to enable power supply: %d\n", ret);
return ret;
}
gpiod_set_value_cansleep(ctx->enable, 1);
msleep(50);
boe_th101mb31ig002_reset(ctx);
boe_th101mb31ig002_enable(panel);
return 0;
}
static const struct drm_display_mode boe_th101mb31ig002_default_mode = {
.clock = 73500,
.hdisplay = 800,
.hsync_start = 800 + 64,
.hsync_end = 800 + 64 + 16,
.htotal = 800 + 64 + 16 + 64,
.vdisplay = 1280,
.vsync_start = 1280 + 2,
.vsync_end = 1280 + 2 + 4,
.vtotal = 1280 + 2 + 4 + 12,
.width_mm = 135,
.height_mm = 216,
.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
};
static int boe_th101mb31ig002_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct boe_th101mb31ig002 *ctx = container_of(panel,
struct boe_th101mb31ig002,
panel);
struct drm_display_mode *mode;
mode = drm_mode_duplicate(connector->dev,
&boe_th101mb31ig002_default_mode);
if (!mode) {
dev_err(panel->dev, "Failed to add mode %ux%u@%u\n",
boe_th101mb31ig002_default_mode.hdisplay,
boe_th101mb31ig002_default_mode.vdisplay,
drm_mode_vrefresh(&boe_th101mb31ig002_default_mode));
return -ENOMEM;
}
drm_mode_set_name(mode);
connector->display_info.bpc = 8;
connector->display_info.width_mm = mode->width_mm;
connector->display_info.height_mm = mode->height_mm;
/*
* TODO: Remove once all drm drivers call
* drm_connector_set_orientation_from_panel()
*/
drm_connector_set_panel_orientation(connector, ctx->orientation);
drm_mode_probed_add(connector, mode);
return 1;
}
static enum drm_panel_orientation
boe_th101mb31ig002_get_orientation(struct drm_panel *panel)
{
struct boe_th101mb31ig002 *ctx = container_of(panel,
struct boe_th101mb31ig002,
panel);
return ctx->orientation;
}
static const struct drm_panel_funcs boe_th101mb31ig002_funcs = {
.prepare = boe_th101mb31ig002_prepare,
.unprepare = boe_th101mb31ig002_unprepare,
.disable = boe_th101mb31ig002_disable,
.get_modes = boe_th101mb31ig002_get_modes,
.get_orientation = boe_th101mb31ig002_get_orientation,
};
static int boe_th101mb31ig002_dsi_probe(struct mipi_dsi_device *dsi)
{
struct boe_th101mb31ig002 *ctx;
int ret;
ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dsi = dsi;
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
MIPI_DSI_MODE_NO_EOT_PACKET |
MIPI_DSI_MODE_LPM;
ctx->power = devm_regulator_get(&dsi->dev, "power");
if (IS_ERR(ctx->power))
return dev_err_probe(&dsi->dev, PTR_ERR(ctx->power),
"Failed to get power regulator\n");
ctx->enable = devm_gpiod_get(&dsi->dev, "enable", GPIOD_OUT_LOW);
if (IS_ERR(ctx->enable))
return dev_err_probe(&dsi->dev, PTR_ERR(ctx->enable),
"Failed to get enable GPIO\n");
ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->reset))
return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset),
"Failed to get reset GPIO\n");
ret = of_drm_get_panel_orientation(dsi->dev.of_node,
&ctx->orientation);
if (ret)
return dev_err_probe(&dsi->dev, ret,
"Failed to get orientation\n");
drm_panel_init(&ctx->panel, &dsi->dev, &boe_th101mb31ig002_funcs,
DRM_MODE_CONNECTOR_DSI);
ret = drm_panel_of_backlight(&ctx->panel);
if (ret)
return ret;
drm_panel_add(&ctx->panel);
ret = mipi_dsi_attach(dsi);
if (ret < 0) {
dev_err_probe(&dsi->dev, ret,
"Failed to attach panel to DSI host\n");
drm_panel_remove(&ctx->panel);
return ret;
}
return 0;
}
static void boe_th101mb31ig002_dsi_remove(struct mipi_dsi_device *dsi)
{
struct boe_th101mb31ig002 *ctx = mipi_dsi_get_drvdata(dsi);
mipi_dsi_detach(dsi);
drm_panel_remove(&ctx->panel);
}
static const struct of_device_id boe_th101mb31ig002_of_match[] = {
{ .compatible = "boe,th101mb31ig002-28a", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, boe_th101mb31ig002_of_match);
static struct mipi_dsi_driver boe_th101mb31ig002_driver = {
.driver = {
.name = "boe-th101mb31ig002-28a",
.of_match_table = boe_th101mb31ig002_of_match,
},
.probe = boe_th101mb31ig002_dsi_probe,
.remove = boe_th101mb31ig002_dsi_remove,
};
module_mipi_dsi_driver(boe_th101mb31ig002_driver);
MODULE_AUTHOR("Alexander Warnecke <awarnecke002@hotmail.com>");
MODULE_DESCRIPTION("BOE TH101MB31IG002-28A MIPI-DSI LCD panel");
MODULE_LICENSE("GPL");
|
