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2e1def0c TV |
1 | /* |
2 | * TPO TD043MTEA1 Panel driver | |
3 | * | |
4 | * Author: Gražvydas Ignotas <notasas@gmail.com> | |
5 | * Converted to new DSS device model: Tomi Valkeinen <tomi.valkeinen@ti.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/delay.h> | |
15 | #include <linux/spi/spi.h> | |
16 | #include <linux/regulator/consumer.h> | |
17 | #include <linux/gpio.h> | |
18 | #include <linux/err.h> | |
19 | #include <linux/slab.h> | |
20 | ||
21 | #include <video/omapdss.h> | |
22 | #include <video/omap-panel-data.h> | |
23 | ||
24 | #define TPO_R02_MODE(x) ((x) & 7) | |
25 | #define TPO_R02_MODE_800x480 7 | |
26 | #define TPO_R02_NCLK_RISING BIT(3) | |
27 | #define TPO_R02_HSYNC_HIGH BIT(4) | |
28 | #define TPO_R02_VSYNC_HIGH BIT(5) | |
29 | ||
30 | #define TPO_R03_NSTANDBY BIT(0) | |
31 | #define TPO_R03_EN_CP_CLK BIT(1) | |
32 | #define TPO_R03_EN_VGL_PUMP BIT(2) | |
33 | #define TPO_R03_EN_PWM BIT(3) | |
34 | #define TPO_R03_DRIVING_CAP_100 BIT(4) | |
35 | #define TPO_R03_EN_PRE_CHARGE BIT(6) | |
36 | #define TPO_R03_SOFTWARE_CTL BIT(7) | |
37 | ||
38 | #define TPO_R04_NFLIP_H BIT(0) | |
39 | #define TPO_R04_NFLIP_V BIT(1) | |
40 | #define TPO_R04_CP_CLK_FREQ_1H BIT(2) | |
41 | #define TPO_R04_VGL_FREQ_1H BIT(4) | |
42 | ||
43 | #define TPO_R03_VAL_NORMAL (TPO_R03_NSTANDBY | TPO_R03_EN_CP_CLK | \ | |
44 | TPO_R03_EN_VGL_PUMP | TPO_R03_EN_PWM | \ | |
45 | TPO_R03_DRIVING_CAP_100 | TPO_R03_EN_PRE_CHARGE | \ | |
46 | TPO_R03_SOFTWARE_CTL) | |
47 | ||
48 | #define TPO_R03_VAL_STANDBY (TPO_R03_DRIVING_CAP_100 | \ | |
49 | TPO_R03_EN_PRE_CHARGE | TPO_R03_SOFTWARE_CTL) | |
50 | ||
51 | static const u16 tpo_td043_def_gamma[12] = { | |
52 | 105, 315, 381, 431, 490, 537, 579, 686, 780, 837, 880, 1023 | |
53 | }; | |
54 | ||
55 | struct panel_drv_data { | |
56 | struct omap_dss_device dssdev; | |
57 | struct omap_dss_device *in; | |
58 | ||
59 | struct omap_video_timings videomode; | |
60 | ||
61 | int data_lines; | |
62 | ||
63 | struct spi_device *spi; | |
64 | struct regulator *vcc_reg; | |
65 | int nreset_gpio; | |
66 | u16 gamma[12]; | |
67 | u32 mode; | |
68 | u32 hmirror:1; | |
69 | u32 vmirror:1; | |
70 | u32 powered_on:1; | |
71 | u32 spi_suspended:1; | |
72 | u32 power_on_resume:1; | |
73 | }; | |
74 | ||
75 | static const struct omap_video_timings tpo_td043_timings = { | |
76 | .x_res = 800, | |
77 | .y_res = 480, | |
78 | ||
d8d78941 | 79 | .pixelclock = 36000000, |
2e1def0c TV |
80 | |
81 | .hsw = 1, | |
82 | .hfp = 68, | |
83 | .hbp = 214, | |
84 | ||
85 | .vsw = 1, | |
86 | .vfp = 39, | |
87 | .vbp = 34, | |
88 | ||
89 | .vsync_level = OMAPDSS_SIG_ACTIVE_LOW, | |
90 | .hsync_level = OMAPDSS_SIG_ACTIVE_LOW, | |
91 | .data_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE, | |
92 | .de_level = OMAPDSS_SIG_ACTIVE_HIGH, | |
93 | .sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES, | |
94 | }; | |
95 | ||
96 | #define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev) | |
97 | ||
98 | static int tpo_td043_write(struct spi_device *spi, u8 addr, u8 data) | |
99 | { | |
100 | struct spi_message m; | |
101 | struct spi_transfer xfer; | |
102 | u16 w; | |
103 | int r; | |
104 | ||
105 | spi_message_init(&m); | |
106 | ||
107 | memset(&xfer, 0, sizeof(xfer)); | |
108 | ||
109 | w = ((u16)addr << 10) | (1 << 8) | data; | |
110 | xfer.tx_buf = &w; | |
111 | xfer.bits_per_word = 16; | |
112 | xfer.len = 2; | |
113 | spi_message_add_tail(&xfer, &m); | |
114 | ||
115 | r = spi_sync(spi, &m); | |
116 | if (r < 0) | |
117 | dev_warn(&spi->dev, "failed to write to LCD reg (%d)\n", r); | |
118 | return r; | |
119 | } | |
120 | ||
121 | static void tpo_td043_write_gamma(struct spi_device *spi, u16 gamma[12]) | |
122 | { | |
123 | u8 i, val; | |
124 | ||
125 | /* gamma bits [9:8] */ | |
126 | for (val = i = 0; i < 4; i++) | |
127 | val |= (gamma[i] & 0x300) >> ((i + 1) * 2); | |
128 | tpo_td043_write(spi, 0x11, val); | |
129 | ||
130 | for (val = i = 0; i < 4; i++) | |
131 | val |= (gamma[i+4] & 0x300) >> ((i + 1) * 2); | |
132 | tpo_td043_write(spi, 0x12, val); | |
133 | ||
134 | for (val = i = 0; i < 4; i++) | |
135 | val |= (gamma[i+8] & 0x300) >> ((i + 1) * 2); | |
136 | tpo_td043_write(spi, 0x13, val); | |
137 | ||
138 | /* gamma bits [7:0] */ | |
139 | for (val = i = 0; i < 12; i++) | |
140 | tpo_td043_write(spi, 0x14 + i, gamma[i] & 0xff); | |
141 | } | |
142 | ||
143 | static int tpo_td043_write_mirror(struct spi_device *spi, bool h, bool v) | |
144 | { | |
145 | u8 reg4 = TPO_R04_NFLIP_H | TPO_R04_NFLIP_V | | |
146 | TPO_R04_CP_CLK_FREQ_1H | TPO_R04_VGL_FREQ_1H; | |
147 | if (h) | |
148 | reg4 &= ~TPO_R04_NFLIP_H; | |
149 | if (v) | |
150 | reg4 &= ~TPO_R04_NFLIP_V; | |
151 | ||
152 | return tpo_td043_write(spi, 4, reg4); | |
153 | } | |
154 | ||
155 | static int tpo_td043_set_hmirror(struct omap_dss_device *dssdev, bool enable) | |
156 | { | |
157 | struct panel_drv_data *ddata = dev_get_drvdata(dssdev->dev); | |
158 | ||
159 | ddata->hmirror = enable; | |
160 | return tpo_td043_write_mirror(ddata->spi, ddata->hmirror, | |
161 | ddata->vmirror); | |
162 | } | |
163 | ||
164 | static bool tpo_td043_get_hmirror(struct omap_dss_device *dssdev) | |
165 | { | |
166 | struct panel_drv_data *ddata = dev_get_drvdata(dssdev->dev); | |
167 | ||
168 | return ddata->hmirror; | |
169 | } | |
170 | ||
171 | static ssize_t tpo_td043_vmirror_show(struct device *dev, | |
172 | struct device_attribute *attr, char *buf) | |
173 | { | |
174 | struct panel_drv_data *ddata = dev_get_drvdata(dev); | |
175 | ||
176 | return snprintf(buf, PAGE_SIZE, "%d\n", ddata->vmirror); | |
177 | } | |
178 | ||
179 | static ssize_t tpo_td043_vmirror_store(struct device *dev, | |
180 | struct device_attribute *attr, const char *buf, size_t count) | |
181 | { | |
182 | struct panel_drv_data *ddata = dev_get_drvdata(dev); | |
183 | int val; | |
184 | int ret; | |
185 | ||
186 | ret = kstrtoint(buf, 0, &val); | |
187 | if (ret < 0) | |
188 | return ret; | |
189 | ||
190 | val = !!val; | |
191 | ||
192 | ret = tpo_td043_write_mirror(ddata->spi, ddata->hmirror, val); | |
193 | if (ret < 0) | |
194 | return ret; | |
195 | ||
196 | ddata->vmirror = val; | |
197 | ||
198 | return count; | |
199 | } | |
200 | ||
201 | static ssize_t tpo_td043_mode_show(struct device *dev, | |
202 | struct device_attribute *attr, char *buf) | |
203 | { | |
204 | struct panel_drv_data *ddata = dev_get_drvdata(dev); | |
205 | ||
206 | return snprintf(buf, PAGE_SIZE, "%d\n", ddata->mode); | |
207 | } | |
208 | ||
209 | static ssize_t tpo_td043_mode_store(struct device *dev, | |
210 | struct device_attribute *attr, const char *buf, size_t count) | |
211 | { | |
212 | struct panel_drv_data *ddata = dev_get_drvdata(dev); | |
213 | long val; | |
214 | int ret; | |
215 | ||
216 | ret = kstrtol(buf, 0, &val); | |
217 | if (ret != 0 || val & ~7) | |
218 | return -EINVAL; | |
219 | ||
220 | ddata->mode = val; | |
221 | ||
222 | val |= TPO_R02_NCLK_RISING; | |
223 | tpo_td043_write(ddata->spi, 2, val); | |
224 | ||
225 | return count; | |
226 | } | |
227 | ||
228 | static ssize_t tpo_td043_gamma_show(struct device *dev, | |
229 | struct device_attribute *attr, char *buf) | |
230 | { | |
231 | struct panel_drv_data *ddata = dev_get_drvdata(dev); | |
232 | ssize_t len = 0; | |
233 | int ret; | |
234 | int i; | |
235 | ||
236 | for (i = 0; i < ARRAY_SIZE(ddata->gamma); i++) { | |
237 | ret = snprintf(buf + len, PAGE_SIZE - len, "%u ", | |
238 | ddata->gamma[i]); | |
239 | if (ret < 0) | |
240 | return ret; | |
241 | len += ret; | |
242 | } | |
243 | buf[len - 1] = '\n'; | |
244 | ||
245 | return len; | |
246 | } | |
247 | ||
248 | static ssize_t tpo_td043_gamma_store(struct device *dev, | |
249 | struct device_attribute *attr, const char *buf, size_t count) | |
250 | { | |
251 | struct panel_drv_data *ddata = dev_get_drvdata(dev); | |
252 | unsigned int g[12]; | |
253 | int ret; | |
254 | int i; | |
255 | ||
256 | ret = sscanf(buf, "%u %u %u %u %u %u %u %u %u %u %u %u", | |
257 | &g[0], &g[1], &g[2], &g[3], &g[4], &g[5], | |
258 | &g[6], &g[7], &g[8], &g[9], &g[10], &g[11]); | |
259 | ||
260 | if (ret != 12) | |
261 | return -EINVAL; | |
262 | ||
263 | for (i = 0; i < 12; i++) | |
264 | ddata->gamma[i] = g[i]; | |
265 | ||
266 | tpo_td043_write_gamma(ddata->spi, ddata->gamma); | |
267 | ||
268 | return count; | |
269 | } | |
270 | ||
271 | static DEVICE_ATTR(vmirror, S_IRUGO | S_IWUSR, | |
272 | tpo_td043_vmirror_show, tpo_td043_vmirror_store); | |
273 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, | |
274 | tpo_td043_mode_show, tpo_td043_mode_store); | |
275 | static DEVICE_ATTR(gamma, S_IRUGO | S_IWUSR, | |
276 | tpo_td043_gamma_show, tpo_td043_gamma_store); | |
277 | ||
278 | static struct attribute *tpo_td043_attrs[] = { | |
279 | &dev_attr_vmirror.attr, | |
280 | &dev_attr_mode.attr, | |
281 | &dev_attr_gamma.attr, | |
282 | NULL, | |
283 | }; | |
284 | ||
285 | static struct attribute_group tpo_td043_attr_group = { | |
286 | .attrs = tpo_td043_attrs, | |
287 | }; | |
288 | ||
289 | static int tpo_td043_power_on(struct panel_drv_data *ddata) | |
290 | { | |
291 | int r; | |
292 | ||
293 | if (ddata->powered_on) | |
294 | return 0; | |
295 | ||
296 | r = regulator_enable(ddata->vcc_reg); | |
297 | if (r != 0) | |
298 | return r; | |
299 | ||
300 | /* wait for panel to stabilize */ | |
301 | msleep(160); | |
302 | ||
303 | if (gpio_is_valid(ddata->nreset_gpio)) | |
304 | gpio_set_value(ddata->nreset_gpio, 1); | |
305 | ||
306 | tpo_td043_write(ddata->spi, 2, | |
307 | TPO_R02_MODE(ddata->mode) | TPO_R02_NCLK_RISING); | |
308 | tpo_td043_write(ddata->spi, 3, TPO_R03_VAL_NORMAL); | |
309 | tpo_td043_write(ddata->spi, 0x20, 0xf0); | |
310 | tpo_td043_write(ddata->spi, 0x21, 0xf0); | |
311 | tpo_td043_write_mirror(ddata->spi, ddata->hmirror, | |
312 | ddata->vmirror); | |
313 | tpo_td043_write_gamma(ddata->spi, ddata->gamma); | |
314 | ||
315 | ddata->powered_on = 1; | |
316 | return 0; | |
317 | } | |
318 | ||
319 | static void tpo_td043_power_off(struct panel_drv_data *ddata) | |
320 | { | |
321 | if (!ddata->powered_on) | |
322 | return; | |
323 | ||
324 | tpo_td043_write(ddata->spi, 3, | |
325 | TPO_R03_VAL_STANDBY | TPO_R03_EN_PWM); | |
326 | ||
327 | if (gpio_is_valid(ddata->nreset_gpio)) | |
328 | gpio_set_value(ddata->nreset_gpio, 0); | |
329 | ||
330 | /* wait for at least 2 vsyncs before cutting off power */ | |
331 | msleep(50); | |
332 | ||
333 | tpo_td043_write(ddata->spi, 3, TPO_R03_VAL_STANDBY); | |
334 | ||
335 | regulator_disable(ddata->vcc_reg); | |
336 | ||
337 | ddata->powered_on = 0; | |
338 | } | |
339 | ||
340 | static int tpo_td043_connect(struct omap_dss_device *dssdev) | |
341 | { | |
342 | struct panel_drv_data *ddata = to_panel_data(dssdev); | |
343 | struct omap_dss_device *in = ddata->in; | |
344 | int r; | |
345 | ||
346 | if (omapdss_device_is_connected(dssdev)) | |
347 | return 0; | |
348 | ||
349 | r = in->ops.dpi->connect(in, dssdev); | |
350 | if (r) | |
351 | return r; | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
356 | static void tpo_td043_disconnect(struct omap_dss_device *dssdev) | |
357 | { | |
358 | struct panel_drv_data *ddata = to_panel_data(dssdev); | |
359 | struct omap_dss_device *in = ddata->in; | |
360 | ||
361 | if (!omapdss_device_is_connected(dssdev)) | |
362 | return; | |
363 | ||
364 | in->ops.dpi->disconnect(in, dssdev); | |
365 | } | |
366 | ||
367 | static int tpo_td043_enable(struct omap_dss_device *dssdev) | |
368 | { | |
369 | struct panel_drv_data *ddata = to_panel_data(dssdev); | |
370 | struct omap_dss_device *in = ddata->in; | |
371 | int r; | |
372 | ||
373 | if (!omapdss_device_is_connected(dssdev)) | |
374 | return -ENODEV; | |
375 | ||
376 | if (omapdss_device_is_enabled(dssdev)) | |
377 | return 0; | |
378 | ||
379 | in->ops.dpi->set_data_lines(in, ddata->data_lines); | |
380 | in->ops.dpi->set_timings(in, &ddata->videomode); | |
381 | ||
382 | r = in->ops.dpi->enable(in); | |
383 | if (r) | |
384 | return r; | |
385 | ||
386 | /* | |
387 | * If we are resuming from system suspend, SPI clocks might not be | |
388 | * enabled yet, so we'll program the LCD from SPI PM resume callback. | |
389 | */ | |
390 | if (!ddata->spi_suspended) { | |
391 | r = tpo_td043_power_on(ddata); | |
392 | if (r) { | |
393 | in->ops.dpi->disable(in); | |
394 | return r; | |
395 | } | |
396 | } | |
397 | ||
398 | dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | static void tpo_td043_disable(struct omap_dss_device *dssdev) | |
404 | { | |
405 | struct panel_drv_data *ddata = to_panel_data(dssdev); | |
406 | struct omap_dss_device *in = ddata->in; | |
407 | ||
408 | if (!omapdss_device_is_enabled(dssdev)) | |
409 | return; | |
410 | ||
411 | in->ops.dpi->disable(in); | |
412 | ||
413 | if (!ddata->spi_suspended) | |
414 | tpo_td043_power_off(ddata); | |
415 | ||
416 | dssdev->state = OMAP_DSS_DISPLAY_DISABLED; | |
417 | } | |
418 | ||
419 | static void tpo_td043_set_timings(struct omap_dss_device *dssdev, | |
420 | struct omap_video_timings *timings) | |
421 | { | |
422 | struct panel_drv_data *ddata = to_panel_data(dssdev); | |
423 | struct omap_dss_device *in = ddata->in; | |
424 | ||
425 | ddata->videomode = *timings; | |
426 | dssdev->panel.timings = *timings; | |
427 | ||
428 | in->ops.dpi->set_timings(in, timings); | |
429 | } | |
430 | ||
431 | static void tpo_td043_get_timings(struct omap_dss_device *dssdev, | |
432 | struct omap_video_timings *timings) | |
433 | { | |
434 | struct panel_drv_data *ddata = to_panel_data(dssdev); | |
435 | ||
436 | *timings = ddata->videomode; | |
437 | } | |
438 | ||
439 | static int tpo_td043_check_timings(struct omap_dss_device *dssdev, | |
440 | struct omap_video_timings *timings) | |
441 | { | |
442 | struct panel_drv_data *ddata = to_panel_data(dssdev); | |
443 | struct omap_dss_device *in = ddata->in; | |
444 | ||
445 | return in->ops.dpi->check_timings(in, timings); | |
446 | } | |
447 | ||
448 | static struct omap_dss_driver tpo_td043_ops = { | |
449 | .connect = tpo_td043_connect, | |
450 | .disconnect = tpo_td043_disconnect, | |
451 | ||
452 | .enable = tpo_td043_enable, | |
453 | .disable = tpo_td043_disable, | |
454 | ||
455 | .set_timings = tpo_td043_set_timings, | |
456 | .get_timings = tpo_td043_get_timings, | |
457 | .check_timings = tpo_td043_check_timings, | |
458 | ||
459 | .set_mirror = tpo_td043_set_hmirror, | |
460 | .get_mirror = tpo_td043_get_hmirror, | |
461 | ||
462 | .get_resolution = omapdss_default_get_resolution, | |
463 | }; | |
464 | ||
465 | ||
466 | static int tpo_td043_probe_pdata(struct spi_device *spi) | |
467 | { | |
468 | const struct panel_tpo_td043mtea1_platform_data *pdata; | |
469 | struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev); | |
470 | struct omap_dss_device *dssdev, *in; | |
471 | ||
472 | pdata = dev_get_platdata(&spi->dev); | |
473 | ||
474 | ddata->nreset_gpio = pdata->nreset_gpio; | |
475 | ||
476 | in = omap_dss_find_output(pdata->source); | |
477 | if (in == NULL) { | |
478 | dev_err(&spi->dev, "failed to find video source '%s'\n", | |
479 | pdata->source); | |
480 | return -EPROBE_DEFER; | |
481 | } | |
482 | ddata->in = in; | |
483 | ||
484 | ddata->data_lines = pdata->data_lines; | |
485 | ||
486 | dssdev = &ddata->dssdev; | |
487 | dssdev->name = pdata->name; | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
492 | static int tpo_td043_probe(struct spi_device *spi) | |
493 | { | |
494 | struct panel_drv_data *ddata; | |
495 | struct omap_dss_device *dssdev; | |
496 | int r; | |
497 | ||
498 | dev_dbg(&spi->dev, "%s\n", __func__); | |
499 | ||
500 | spi->bits_per_word = 16; | |
501 | spi->mode = SPI_MODE_0; | |
502 | ||
503 | r = spi_setup(spi); | |
504 | if (r < 0) { | |
505 | dev_err(&spi->dev, "spi_setup failed: %d\n", r); | |
506 | return r; | |
507 | } | |
508 | ||
509 | ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); | |
510 | if (ddata == NULL) | |
511 | return -ENOMEM; | |
512 | ||
513 | dev_set_drvdata(&spi->dev, ddata); | |
514 | ||
515 | ddata->spi = spi; | |
516 | ||
517 | if (dev_get_platdata(&spi->dev)) { | |
518 | r = tpo_td043_probe_pdata(spi); | |
519 | if (r) | |
520 | return r; | |
521 | } else { | |
522 | return -ENODEV; | |
523 | } | |
524 | ||
525 | ddata->mode = TPO_R02_MODE_800x480; | |
526 | memcpy(ddata->gamma, tpo_td043_def_gamma, sizeof(ddata->gamma)); | |
527 | ||
528 | ddata->vcc_reg = devm_regulator_get(&spi->dev, "vcc"); | |
529 | if (IS_ERR(ddata->vcc_reg)) { | |
530 | dev_err(&spi->dev, "failed to get LCD VCC regulator\n"); | |
531 | r = PTR_ERR(ddata->vcc_reg); | |
532 | goto err_regulator; | |
533 | } | |
534 | ||
535 | if (gpio_is_valid(ddata->nreset_gpio)) { | |
536 | r = devm_gpio_request_one(&spi->dev, | |
537 | ddata->nreset_gpio, GPIOF_OUT_INIT_LOW, | |
538 | "lcd reset"); | |
539 | if (r < 0) { | |
540 | dev_err(&spi->dev, "couldn't request reset GPIO\n"); | |
541 | goto err_gpio_req; | |
542 | } | |
543 | } | |
544 | ||
545 | r = sysfs_create_group(&spi->dev.kobj, &tpo_td043_attr_group); | |
546 | if (r) { | |
547 | dev_err(&spi->dev, "failed to create sysfs files\n"); | |
548 | goto err_sysfs; | |
549 | } | |
550 | ||
551 | ddata->videomode = tpo_td043_timings; | |
552 | ||
553 | dssdev = &ddata->dssdev; | |
554 | dssdev->dev = &spi->dev; | |
555 | dssdev->driver = &tpo_td043_ops; | |
556 | dssdev->type = OMAP_DISPLAY_TYPE_DPI; | |
557 | dssdev->owner = THIS_MODULE; | |
558 | dssdev->panel.timings = ddata->videomode; | |
559 | ||
560 | r = omapdss_register_display(dssdev); | |
561 | if (r) { | |
562 | dev_err(&spi->dev, "Failed to register panel\n"); | |
563 | goto err_reg; | |
564 | } | |
565 | ||
566 | return 0; | |
567 | ||
568 | err_reg: | |
569 | sysfs_remove_group(&spi->dev.kobj, &tpo_td043_attr_group); | |
570 | err_sysfs: | |
571 | err_gpio_req: | |
572 | err_regulator: | |
573 | omap_dss_put_device(ddata->in); | |
574 | return r; | |
575 | } | |
576 | ||
577 | static int tpo_td043_remove(struct spi_device *spi) | |
578 | { | |
579 | struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev); | |
580 | struct omap_dss_device *dssdev = &ddata->dssdev; | |
581 | struct omap_dss_device *in = ddata->in; | |
582 | ||
583 | dev_dbg(&ddata->spi->dev, "%s\n", __func__); | |
584 | ||
585 | omapdss_unregister_display(dssdev); | |
586 | ||
587 | tpo_td043_disable(dssdev); | |
588 | tpo_td043_disconnect(dssdev); | |
589 | ||
590 | omap_dss_put_device(in); | |
591 | ||
592 | sysfs_remove_group(&spi->dev.kobj, &tpo_td043_attr_group); | |
593 | ||
594 | return 0; | |
595 | } | |
596 | ||
597 | #ifdef CONFIG_PM_SLEEP | |
598 | static int tpo_td043_spi_suspend(struct device *dev) | |
599 | { | |
600 | struct panel_drv_data *ddata = dev_get_drvdata(dev); | |
601 | ||
602 | dev_dbg(dev, "tpo_td043_spi_suspend, tpo %p\n", ddata); | |
603 | ||
604 | ddata->power_on_resume = ddata->powered_on; | |
605 | tpo_td043_power_off(ddata); | |
606 | ddata->spi_suspended = 1; | |
607 | ||
608 | return 0; | |
609 | } | |
610 | ||
611 | static int tpo_td043_spi_resume(struct device *dev) | |
612 | { | |
613 | struct panel_drv_data *ddata = dev_get_drvdata(dev); | |
614 | int ret; | |
615 | ||
616 | dev_dbg(dev, "tpo_td043_spi_resume\n"); | |
617 | ||
618 | if (ddata->power_on_resume) { | |
619 | ret = tpo_td043_power_on(ddata); | |
620 | if (ret) | |
621 | return ret; | |
622 | } | |
623 | ddata->spi_suspended = 0; | |
624 | ||
625 | return 0; | |
626 | } | |
627 | #endif | |
628 | ||
629 | static SIMPLE_DEV_PM_OPS(tpo_td043_spi_pm, | |
630 | tpo_td043_spi_suspend, tpo_td043_spi_resume); | |
631 | ||
632 | static struct spi_driver tpo_td043_spi_driver = { | |
633 | .driver = { | |
634 | .name = "panel-tpo-td043mtea1", | |
635 | .owner = THIS_MODULE, | |
636 | .pm = &tpo_td043_spi_pm, | |
637 | }, | |
638 | .probe = tpo_td043_probe, | |
639 | .remove = tpo_td043_remove, | |
640 | }; | |
641 | ||
642 | module_spi_driver(tpo_td043_spi_driver); | |
643 | ||
644 | MODULE_AUTHOR("Gražvydas Ignotas <notasas@gmail.com>"); | |
645 | MODULE_DESCRIPTION("TPO TD043MTEA1 LCD Driver"); | |
646 | MODULE_LICENSE("GPL"); |