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path: root/drivers/video/omap2/displays-new/panel-lgphilips-lb035q02.c
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Diffstat (limited to 'drivers/video/omap2/displays-new/panel-lgphilips-lb035q02.c')
-rw-r--r--drivers/video/omap2/displays-new/panel-lgphilips-lb035q02.c358
1 files changed, 0 insertions, 358 deletions
diff --git a/drivers/video/omap2/displays-new/panel-lgphilips-lb035q02.c b/drivers/video/omap2/displays-new/panel-lgphilips-lb035q02.c
deleted file mode 100644
index 2e6b513222d9..000000000000
--- a/drivers/video/omap2/displays-new/panel-lgphilips-lb035q02.c
+++ /dev/null
@@ -1,358 +0,0 @@
1/*
2 * LG.Philips LB035Q02 LCD Panel driver
3 *
4 * Copyright (C) 2013 Texas Instruments
5 * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
6 * Based on a driver by: Steve Sakoman <steve@sakoman.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published by
10 * the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/delay.h>
15#include <linux/spi/spi.h>
16#include <linux/mutex.h>
17#include <linux/gpio.h>
18
19#include <video/omapdss.h>
20#include <video/omap-panel-data.h>
21
22static struct omap_video_timings lb035q02_timings = {
23 .x_res = 320,
24 .y_res = 240,
25
26 .pixelclock = 6500000,
27
28 .hsw = 2,
29 .hfp = 20,
30 .hbp = 68,
31
32 .vsw = 2,
33 .vfp = 4,
34 .vbp = 18,
35
36 .vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
37 .hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
38 .data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
39 .de_level = OMAPDSS_SIG_ACTIVE_HIGH,
40 .sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
41};
42
43struct panel_drv_data {
44 struct omap_dss_device dssdev;
45 struct omap_dss_device *in;
46
47 struct spi_device *spi;
48
49 int data_lines;
50
51 struct omap_video_timings videomode;
52
53 int reset_gpio;
54 int backlight_gpio;
55 int enable_gpio;
56};
57
58#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
59
60static int lb035q02_write_reg(struct spi_device *spi, u8 reg, u16 val)
61{
62 struct spi_message msg;
63 struct spi_transfer index_xfer = {
64 .len = 3,
65 .cs_change = 1,
66 };
67 struct spi_transfer value_xfer = {
68 .len = 3,
69 };
70 u8 buffer[16];
71
72 spi_message_init(&msg);
73
74 /* register index */
75 buffer[0] = 0x70;
76 buffer[1] = 0x00;
77 buffer[2] = reg & 0x7f;
78 index_xfer.tx_buf = buffer;
79 spi_message_add_tail(&index_xfer, &msg);
80
81 /* register value */
82 buffer[4] = 0x72;
83 buffer[5] = val >> 8;
84 buffer[6] = val;
85 value_xfer.tx_buf = buffer + 4;
86 spi_message_add_tail(&value_xfer, &msg);
87
88 return spi_sync(spi, &msg);
89}
90
91static void init_lb035q02_panel(struct spi_device *spi)
92{
93 /* Init sequence from page 28 of the lb035q02 spec */
94 lb035q02_write_reg(spi, 0x01, 0x6300);
95 lb035q02_write_reg(spi, 0x02, 0x0200);
96 lb035q02_write_reg(spi, 0x03, 0x0177);
97 lb035q02_write_reg(spi, 0x04, 0x04c7);
98 lb035q02_write_reg(spi, 0x05, 0xffc0);
99 lb035q02_write_reg(spi, 0x06, 0xe806);
100 lb035q02_write_reg(spi, 0x0a, 0x4008);
101 lb035q02_write_reg(spi, 0x0b, 0x0000);
102 lb035q02_write_reg(spi, 0x0d, 0x0030);
103 lb035q02_write_reg(spi, 0x0e, 0x2800);
104 lb035q02_write_reg(spi, 0x0f, 0x0000);
105 lb035q02_write_reg(spi, 0x16, 0x9f80);
106 lb035q02_write_reg(spi, 0x17, 0x0a0f);
107 lb035q02_write_reg(spi, 0x1e, 0x00c1);
108 lb035q02_write_reg(spi, 0x30, 0x0300);
109 lb035q02_write_reg(spi, 0x31, 0x0007);
110 lb035q02_write_reg(spi, 0x32, 0x0000);
111 lb035q02_write_reg(spi, 0x33, 0x0000);
112 lb035q02_write_reg(spi, 0x34, 0x0707);
113 lb035q02_write_reg(spi, 0x35, 0x0004);
114 lb035q02_write_reg(spi, 0x36, 0x0302);
115 lb035q02_write_reg(spi, 0x37, 0x0202);
116 lb035q02_write_reg(spi, 0x3a, 0x0a0d);
117 lb035q02_write_reg(spi, 0x3b, 0x0806);
118}
119
120static int lb035q02_connect(struct omap_dss_device *dssdev)
121{
122 struct panel_drv_data *ddata = to_panel_data(dssdev);
123 struct omap_dss_device *in = ddata->in;
124 int r;
125
126 if (omapdss_device_is_connected(dssdev))
127 return 0;
128
129 r = in->ops.dpi->connect(in, dssdev);
130 if (r)
131 return r;
132
133 init_lb035q02_panel(ddata->spi);
134
135 return 0;
136}
137
138static void lb035q02_disconnect(struct omap_dss_device *dssdev)
139{
140 struct panel_drv_data *ddata = to_panel_data(dssdev);
141 struct omap_dss_device *in = ddata->in;
142
143 if (!omapdss_device_is_connected(dssdev))
144 return;
145
146 in->ops.dpi->disconnect(in, dssdev);
147}
148
149static int lb035q02_enable(struct omap_dss_device *dssdev)
150{
151 struct panel_drv_data *ddata = to_panel_data(dssdev);
152 struct omap_dss_device *in = ddata->in;
153 int r;
154
155 if (!omapdss_device_is_connected(dssdev))
156 return -ENODEV;
157
158 if (omapdss_device_is_enabled(dssdev))
159 return 0;
160
161 in->ops.dpi->set_data_lines(in, ddata->data_lines);
162 in->ops.dpi->set_timings(in, &ddata->videomode);
163
164 r = in->ops.dpi->enable(in);
165 if (r)
166 return r;
167
168 if (gpio_is_valid(ddata->enable_gpio))
169 gpio_set_value_cansleep(ddata->enable_gpio, 1);
170
171 if (gpio_is_valid(ddata->backlight_gpio))
172 gpio_set_value_cansleep(ddata->backlight_gpio, 1);
173
174 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
175
176 return 0;
177}
178
179static void lb035q02_disable(struct omap_dss_device *dssdev)
180{
181 struct panel_drv_data *ddata = to_panel_data(dssdev);
182 struct omap_dss_device *in = ddata->in;
183
184 if (!omapdss_device_is_enabled(dssdev))
185 return;
186
187 if (gpio_is_valid(ddata->enable_gpio))
188 gpio_set_value_cansleep(ddata->enable_gpio, 0);
189
190 if (gpio_is_valid(ddata->backlight_gpio))
191 gpio_set_value_cansleep(ddata->backlight_gpio, 0);
192
193 in->ops.dpi->disable(in);
194
195 dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
196}
197
198static void lb035q02_set_timings(struct omap_dss_device *dssdev,
199 struct omap_video_timings *timings)
200{
201 struct panel_drv_data *ddata = to_panel_data(dssdev);
202 struct omap_dss_device *in = ddata->in;
203
204 ddata->videomode = *timings;
205 dssdev->panel.timings = *timings;
206
207 in->ops.dpi->set_timings(in, timings);
208}
209
210static void lb035q02_get_timings(struct omap_dss_device *dssdev,
211 struct omap_video_timings *timings)
212{
213 struct panel_drv_data *ddata = to_panel_data(dssdev);
214
215 *timings = ddata->videomode;
216}
217
218static int lb035q02_check_timings(struct omap_dss_device *dssdev,
219 struct omap_video_timings *timings)
220{
221 struct panel_drv_data *ddata = to_panel_data(dssdev);
222 struct omap_dss_device *in = ddata->in;
223
224 return in->ops.dpi->check_timings(in, timings);
225}
226
227static struct omap_dss_driver lb035q02_ops = {
228 .connect = lb035q02_connect,
229 .disconnect = lb035q02_disconnect,
230
231 .enable = lb035q02_enable,
232 .disable = lb035q02_disable,
233
234 .set_timings = lb035q02_set_timings,
235 .get_timings = lb035q02_get_timings,
236 .check_timings = lb035q02_check_timings,
237
238 .get_resolution = omapdss_default_get_resolution,
239};
240
241static int lb035q02_probe_pdata(struct spi_device *spi)
242{
243 const struct panel_lb035q02_platform_data *pdata;
244 struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
245 struct omap_dss_device *dssdev, *in;
246
247 pdata = dev_get_platdata(&spi->dev);
248
249 in = omap_dss_find_output(pdata->source);
250 if (in == NULL) {
251 dev_err(&spi->dev, "failed to find video source '%s'\n",
252 pdata->source);
253 return -EPROBE_DEFER;
254 }
255
256 ddata->in = in;
257
258 ddata->data_lines = pdata->data_lines;
259
260 dssdev = &ddata->dssdev;
261 dssdev->name = pdata->name;
262
263 ddata->enable_gpio = pdata->enable_gpio;
264 ddata->backlight_gpio = pdata->backlight_gpio;
265
266 return 0;
267}
268
269static int lb035q02_panel_spi_probe(struct spi_device *spi)
270{
271 struct panel_drv_data *ddata;
272 struct omap_dss_device *dssdev;
273 int r;
274
275 ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL);
276 if (ddata == NULL)
277 return -ENOMEM;
278
279 dev_set_drvdata(&spi->dev, ddata);
280
281 ddata->spi = spi;
282
283 if (dev_get_platdata(&spi->dev)) {
284 r = lb035q02_probe_pdata(spi);
285 if (r)
286 return r;
287 } else {
288 return -ENODEV;
289 }
290
291 if (gpio_is_valid(ddata->enable_gpio)) {
292 r = devm_gpio_request_one(&spi->dev, ddata->enable_gpio,
293 GPIOF_OUT_INIT_LOW, "panel enable");
294 if (r)
295 goto err_gpio;
296 }
297
298 if (gpio_is_valid(ddata->backlight_gpio)) {
299 r = devm_gpio_request_one(&spi->dev, ddata->backlight_gpio,
300 GPIOF_OUT_INIT_LOW, "panel backlight");
301 if (r)
302 goto err_gpio;
303 }
304
305 ddata->videomode = lb035q02_timings;
306
307 dssdev = &ddata->dssdev;
308 dssdev->dev = &spi->dev;
309 dssdev->driver = &lb035q02_ops;
310 dssdev->type = OMAP_DISPLAY_TYPE_DPI;
311 dssdev->owner = THIS_MODULE;
312 dssdev->panel.timings = ddata->videomode;
313 dssdev->phy.dpi.data_lines = ddata->data_lines;
314
315 r = omapdss_register_display(dssdev);
316 if (r) {
317 dev_err(&spi->dev, "Failed to register panel\n");
318 goto err_reg;
319 }
320
321 return 0;
322
323err_reg:
324err_gpio:
325 omap_dss_put_device(ddata->in);
326 return r;
327}
328
329static int lb035q02_panel_spi_remove(struct spi_device *spi)
330{
331 struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
332 struct omap_dss_device *dssdev = &ddata->dssdev;
333 struct omap_dss_device *in = ddata->in;
334
335 omapdss_unregister_display(dssdev);
336
337 lb035q02_disable(dssdev);
338 lb035q02_disconnect(dssdev);
339
340 omap_dss_put_device(in);
341
342 return 0;
343}
344
345static struct spi_driver lb035q02_spi_driver = {
346 .probe = lb035q02_panel_spi_probe,
347 .remove = lb035q02_panel_spi_remove,
348 .driver = {
349 .name = "panel_lgphilips_lb035q02",
350 .owner = THIS_MODULE,
351 },
352};
353
354module_spi_driver(lb035q02_spi_driver);
355
356MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
357MODULE_DESCRIPTION("LG.Philips LB035Q02 LCD Panel driver");
358MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-19 19:29:41 -0500