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extcon: Fix return value in extcon-class.c
[linux-2.6.git] / drivers / gpio / gpio-lpc32xx.c
blob3644e0dcb3dd14fc26ee1f40735007eafd8c6d2a
1 /*
2 * GPIO driver for LPC32xx SoC
3 *
4 * Author: Kevin Wells <kevin.wells@nxp.com>
5 *
6 * Copyright (C) 2010 NXP Semiconductors
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21 #include <linux/io.h>
22 #include <linux/errno.h>
23 #include <linux/gpio.h>
24 #include <linux/of_gpio.h>
25 #include <linux/platform_device.h>
26 #include <linux/module.h>
27
28 #include <mach/hardware.h>
29 #include <mach/platform.h>
30 #include <mach/gpio-lpc32xx.h>
31 #include <mach/irqs.h>
32
33 #define LPC32XX_GPIO_P3_INP_STATE _GPREG(0x000)
34 #define LPC32XX_GPIO_P3_OUTP_SET _GPREG(0x004)
35 #define LPC32XX_GPIO_P3_OUTP_CLR _GPREG(0x008)
36 #define LPC32XX_GPIO_P3_OUTP_STATE _GPREG(0x00C)
37 #define LPC32XX_GPIO_P2_DIR_SET _GPREG(0x010)
38 #define LPC32XX_GPIO_P2_DIR_CLR _GPREG(0x014)
39 #define LPC32XX_GPIO_P2_DIR_STATE _GPREG(0x018)
40 #define LPC32XX_GPIO_P2_INP_STATE _GPREG(0x01C)
41 #define LPC32XX_GPIO_P2_OUTP_SET _GPREG(0x020)
42 #define LPC32XX_GPIO_P2_OUTP_CLR _GPREG(0x024)
43 #define LPC32XX_GPIO_P2_MUX_SET _GPREG(0x028)
44 #define LPC32XX_GPIO_P2_MUX_CLR _GPREG(0x02C)
45 #define LPC32XX_GPIO_P2_MUX_STATE _GPREG(0x030)
46 #define LPC32XX_GPIO_P0_INP_STATE _GPREG(0x040)
47 #define LPC32XX_GPIO_P0_OUTP_SET _GPREG(0x044)
48 #define LPC32XX_GPIO_P0_OUTP_CLR _GPREG(0x048)
49 #define LPC32XX_GPIO_P0_OUTP_STATE _GPREG(0x04C)
50 #define LPC32XX_GPIO_P0_DIR_SET _GPREG(0x050)
51 #define LPC32XX_GPIO_P0_DIR_CLR _GPREG(0x054)
52 #define LPC32XX_GPIO_P0_DIR_STATE _GPREG(0x058)
53 #define LPC32XX_GPIO_P1_INP_STATE _GPREG(0x060)
54 #define LPC32XX_GPIO_P1_OUTP_SET _GPREG(0x064)
55 #define LPC32XX_GPIO_P1_OUTP_CLR _GPREG(0x068)
56 #define LPC32XX_GPIO_P1_OUTP_STATE _GPREG(0x06C)
57 #define LPC32XX_GPIO_P1_DIR_SET _GPREG(0x070)
58 #define LPC32XX_GPIO_P1_DIR_CLR _GPREG(0x074)
59 #define LPC32XX_GPIO_P1_DIR_STATE _GPREG(0x078)
60
61 #define GPIO012_PIN_TO_BIT(x) (1 << (x))
62 #define GPIO3_PIN_TO_BIT(x) (1 << ((x) + 25))
63 #define GPO3_PIN_TO_BIT(x) (1 << (x))
64 #define GPIO012_PIN_IN_SEL(x, y) (((x) >> (y)) & 1)
65 #define GPIO3_PIN_IN_SHIFT(x) ((x) == 5 ? 24 : 10 + (x))
66 #define GPIO3_PIN_IN_SEL(x, y) (((x) >> GPIO3_PIN_IN_SHIFT(y)) & 1)
67 #define GPIO3_PIN5_IN_SEL(x) (((x) >> 24) & 1)
68 #define GPI3_PIN_IN_SEL(x, y) (((x) >> (y)) & 1)
69 #define GPO3_PIN_IN_SEL(x, y) (((x) >> (y)) & 1)
70
71 struct gpio_regs {
72 void __iomem *inp_state;
73 void __iomem *outp_state;
74 void __iomem *outp_set;
75 void __iomem *outp_clr;
76 void __iomem *dir_set;
77 void __iomem *dir_clr;
78 };
79
80 /*
81 * GPIO names
82 */
83 static const char *gpio_p0_names[LPC32XX_GPIO_P0_MAX] = {
84 "p0.0", "p0.1", "p0.2", "p0.3",
85 "p0.4", "p0.5", "p0.6", "p0.7"
86 };
87
88 static const char *gpio_p1_names[LPC32XX_GPIO_P1_MAX] = {
89 "p1.0", "p1.1", "p1.2", "p1.3",
90 "p1.4", "p1.5", "p1.6", "p1.7",
91 "p1.8", "p1.9", "p1.10", "p1.11",
92 "p1.12", "p1.13", "p1.14", "p1.15",
93 "p1.16", "p1.17", "p1.18", "p1.19",
94 "p1.20", "p1.21", "p1.22", "p1.23",
95 };
96
97 static const char *gpio_p2_names[LPC32XX_GPIO_P2_MAX] = {
98 "p2.0", "p2.1", "p2.2", "p2.3",
99 "p2.4", "p2.5", "p2.6", "p2.7",
100 "p2.8", "p2.9", "p2.10", "p2.11",
101 "p2.12"
102 };
103
104 static const char *gpio_p3_names[LPC32XX_GPIO_P3_MAX] = {
105 "gpio00", "gpio01", "gpio02", "gpio03",
106 "gpio04", "gpio05"
107 };
108
109 static const char *gpi_p3_names[LPC32XX_GPI_P3_MAX] = {
110 "gpi00", "gpi01", "gpi02", "gpi03",
111 "gpi04", "gpi05", "gpi06", "gpi07",
112 "gpi08", "gpi09", NULL, NULL,
113 NULL, NULL, NULL, "gpi15",
114 "gpi16", "gpi17", "gpi18", "gpi19",
115 "gpi20", "gpi21", "gpi22", "gpi23",
116 "gpi24", "gpi25", "gpi26", "gpi27",
117 "gpi28"
118 };
119
120 static const char *gpo_p3_names[LPC32XX_GPO_P3_MAX] = {
121 "gpo00", "gpo01", "gpo02", "gpo03",
122 "gpo04", "gpo05", "gpo06", "gpo07",
123 "gpo08", "gpo09", "gpo10", "gpo11",
124 "gpo12", "gpo13", "gpo14", "gpo15",
125 "gpo16", "gpo17", "gpo18", "gpo19",
126 "gpo20", "gpo21", "gpo22", "gpo23"
127 };
128
129 static struct gpio_regs gpio_grp_regs_p0 = {
130 .inp_state = LPC32XX_GPIO_P0_INP_STATE,
131 .outp_set = LPC32XX_GPIO_P0_OUTP_SET,
132 .outp_clr = LPC32XX_GPIO_P0_OUTP_CLR,
133 .dir_set = LPC32XX_GPIO_P0_DIR_SET,
134 .dir_clr = LPC32XX_GPIO_P0_DIR_CLR,
135 };
136
137 static struct gpio_regs gpio_grp_regs_p1 = {
138 .inp_state = LPC32XX_GPIO_P1_INP_STATE,
139 .outp_set = LPC32XX_GPIO_P1_OUTP_SET,
140 .outp_clr = LPC32XX_GPIO_P1_OUTP_CLR,
141 .dir_set = LPC32XX_GPIO_P1_DIR_SET,
142 .dir_clr = LPC32XX_GPIO_P1_DIR_CLR,
143 };
144
145 static struct gpio_regs gpio_grp_regs_p2 = {
146 .inp_state = LPC32XX_GPIO_P2_INP_STATE,
147 .outp_set = LPC32XX_GPIO_P2_OUTP_SET,
148 .outp_clr = LPC32XX_GPIO_P2_OUTP_CLR,
149 .dir_set = LPC32XX_GPIO_P2_DIR_SET,
150 .dir_clr = LPC32XX_GPIO_P2_DIR_CLR,
151 };
152
153 static struct gpio_regs gpio_grp_regs_p3 = {
154 .inp_state = LPC32XX_GPIO_P3_INP_STATE,
155 .outp_state = LPC32XX_GPIO_P3_OUTP_STATE,
156 .outp_set = LPC32XX_GPIO_P3_OUTP_SET,
157 .outp_clr = LPC32XX_GPIO_P3_OUTP_CLR,
158 .dir_set = LPC32XX_GPIO_P2_DIR_SET,
159 .dir_clr = LPC32XX_GPIO_P2_DIR_CLR,
160 };
161
162 struct lpc32xx_gpio_chip {
163 struct gpio_chip chip;
164 struct gpio_regs *gpio_grp;
165 };
166
167 static inline struct lpc32xx_gpio_chip *to_lpc32xx_gpio(
168 struct gpio_chip *gpc)
169 {
170 return container_of(gpc, struct lpc32xx_gpio_chip, chip);
171 }
172
173 static void __set_gpio_dir_p012(struct lpc32xx_gpio_chip *group,
174 unsigned pin, int input)
175 {
176 if (input)
177 __raw_writel(GPIO012_PIN_TO_BIT(pin),
178 group->gpio_grp->dir_clr);
179 else
180 __raw_writel(GPIO012_PIN_TO_BIT(pin),
181 group->gpio_grp->dir_set);
182 }
183
184 static void __set_gpio_dir_p3(struct lpc32xx_gpio_chip *group,
185 unsigned pin, int input)
186 {
187 u32 u = GPIO3_PIN_TO_BIT(pin);
188
189 if (input)
190 __raw_writel(u, group->gpio_grp->dir_clr);
191 else
192 __raw_writel(u, group->gpio_grp->dir_set);
193 }
194
195 static void __set_gpio_level_p012(struct lpc32xx_gpio_chip *group,
196 unsigned pin, int high)
197 {
198 if (high)
199 __raw_writel(GPIO012_PIN_TO_BIT(pin),
200 group->gpio_grp->outp_set);
201 else
202 __raw_writel(GPIO012_PIN_TO_BIT(pin),
203 group->gpio_grp->outp_clr);
204 }
205
206 static void __set_gpio_level_p3(struct lpc32xx_gpio_chip *group,
207 unsigned pin, int high)
208 {
209 u32 u = GPIO3_PIN_TO_BIT(pin);
210
211 if (high)
212 __raw_writel(u, group->gpio_grp->outp_set);
213 else
214 __raw_writel(u, group->gpio_grp->outp_clr);
215 }
216
217 static void __set_gpo_level_p3(struct lpc32xx_gpio_chip *group,
218 unsigned pin, int high)
219 {
220 if (high)
221 __raw_writel(GPO3_PIN_TO_BIT(pin), group->gpio_grp->outp_set);
222 else
223 __raw_writel(GPO3_PIN_TO_BIT(pin), group->gpio_grp->outp_clr);
224 }
225
226 static int __get_gpio_state_p012(struct lpc32xx_gpio_chip *group,
227 unsigned pin)
228 {
229 return GPIO012_PIN_IN_SEL(__raw_readl(group->gpio_grp->inp_state),
230 pin);
231 }
232
233 static int __get_gpio_state_p3(struct lpc32xx_gpio_chip *group,
234 unsigned pin)
235 {
236 int state = __raw_readl(group->gpio_grp->inp_state);
237
238 /*
239 * P3 GPIO pin input mapping is not contiguous, GPIOP3-0..4 is mapped
240 * to bits 10..14, while GPIOP3-5 is mapped to bit 24.
241 */
242 return GPIO3_PIN_IN_SEL(state, pin);
243 }
244
245 static int __get_gpi_state_p3(struct lpc32xx_gpio_chip *group,
246 unsigned pin)
247 {
248 return GPI3_PIN_IN_SEL(__raw_readl(group->gpio_grp->inp_state), pin);
249 }
250
251 static int __get_gpo_state_p3(struct lpc32xx_gpio_chip *group,
252 unsigned pin)
253 {
254 return GPO3_PIN_IN_SEL(__raw_readl(group->gpio_grp->outp_state), pin);
255 }
256
257 /*
258 * GENERIC_GPIO primitives.
259 */
260 static int lpc32xx_gpio_dir_input_p012(struct gpio_chip *chip,
261 unsigned pin)
262 {
263 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
264
265 __set_gpio_dir_p012(group, pin, 1);
266
267 return 0;
268 }
269
270 static int lpc32xx_gpio_dir_input_p3(struct gpio_chip *chip,
271 unsigned pin)
272 {
273 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
274
275 __set_gpio_dir_p3(group, pin, 1);
276
277 return 0;
278 }
279
280 static int lpc32xx_gpio_dir_in_always(struct gpio_chip *chip,
281 unsigned pin)
282 {
283 return 0;
284 }
285
286 static int lpc32xx_gpio_get_value_p012(struct gpio_chip *chip, unsigned pin)
287 {
288 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
289
290 return __get_gpio_state_p012(group, pin);
291 }
292
293 static int lpc32xx_gpio_get_value_p3(struct gpio_chip *chip, unsigned pin)
294 {
295 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
296
297 return __get_gpio_state_p3(group, pin);
298 }
299
300 static int lpc32xx_gpi_get_value(struct gpio_chip *chip, unsigned pin)
301 {
302 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
303
304 return __get_gpi_state_p3(group, pin);
305 }
306
307 static int lpc32xx_gpio_dir_output_p012(struct gpio_chip *chip, unsigned pin,
308 int value)
309 {
310 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
311
312 __set_gpio_level_p012(group, pin, value);
313 __set_gpio_dir_p012(group, pin, 0);
314
315 return 0;
316 }
317
318 static int lpc32xx_gpio_dir_output_p3(struct gpio_chip *chip, unsigned pin,
319 int value)
320 {
321 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
322
323 __set_gpio_level_p3(group, pin, value);
324 __set_gpio_dir_p3(group, pin, 0);
325
326 return 0;
327 }
328
329 static int lpc32xx_gpio_dir_out_always(struct gpio_chip *chip, unsigned pin,
330 int value)
331 {
332 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
333
334 __set_gpo_level_p3(group, pin, value);
335 return 0;
336 }
337
338 static void lpc32xx_gpio_set_value_p012(struct gpio_chip *chip, unsigned pin,
339 int value)
340 {
341 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
342
343 __set_gpio_level_p012(group, pin, value);
344 }
345
346 static void lpc32xx_gpio_set_value_p3(struct gpio_chip *chip, unsigned pin,
347 int value)
348 {
349 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
350
351 __set_gpio_level_p3(group, pin, value);
352 }
353
354 static void lpc32xx_gpo_set_value(struct gpio_chip *chip, unsigned pin,
355 int value)
356 {
357 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
358
359 __set_gpo_level_p3(group, pin, value);
360 }
361
362 static int lpc32xx_gpo_get_value(struct gpio_chip *chip, unsigned pin)
363 {
364 struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
365
366 return __get_gpo_state_p3(group, pin);
367 }
368
369 static int lpc32xx_gpio_request(struct gpio_chip *chip, unsigned pin)
370 {
371 if (pin < chip->ngpio)
372 return 0;
373
374 return -EINVAL;
375 }
376
377 static int lpc32xx_gpio_to_irq_p01(struct gpio_chip *chip, unsigned offset)
378 {
379 return IRQ_LPC32XX_P0_P1_IRQ;
380 }
381
382 static const char lpc32xx_gpio_to_irq_gpio_p3_table[] = {
383 IRQ_LPC32XX_GPIO_00,
384 IRQ_LPC32XX_GPIO_01,
385 IRQ_LPC32XX_GPIO_02,
386 IRQ_LPC32XX_GPIO_03,
387 IRQ_LPC32XX_GPIO_04,
388 IRQ_LPC32XX_GPIO_05,
389 };
390
391 static int lpc32xx_gpio_to_irq_gpio_p3(struct gpio_chip *chip, unsigned offset)
392 {
393 if (offset < ARRAY_SIZE(lpc32xx_gpio_to_irq_gpio_p3_table))
394 return lpc32xx_gpio_to_irq_gpio_p3_table[offset];
395 return -ENXIO;
396 }
397
398 static const char lpc32xx_gpio_to_irq_gpi_p3_table[] = {
399 IRQ_LPC32XX_GPI_00,
400 IRQ_LPC32XX_GPI_01,
401 IRQ_LPC32XX_GPI_02,
402 IRQ_LPC32XX_GPI_03,
403 IRQ_LPC32XX_GPI_04,
404 IRQ_LPC32XX_GPI_05,
405 IRQ_LPC32XX_GPI_06,
406 IRQ_LPC32XX_GPI_07,
407 IRQ_LPC32XX_GPI_08,
408 IRQ_LPC32XX_GPI_09,
409 -ENXIO, /* 10 */
410 -ENXIO, /* 11 */
411 -ENXIO, /* 12 */
412 -ENXIO, /* 13 */
413 -ENXIO, /* 14 */
414 -ENXIO, /* 15 */
415 -ENXIO, /* 16 */
416 -ENXIO, /* 17 */
417 -ENXIO, /* 18 */
418 IRQ_LPC32XX_GPI_19,
419 -ENXIO, /* 20 */
420 -ENXIO, /* 21 */
421 -ENXIO, /* 22 */
422 -ENXIO, /* 23 */
423 -ENXIO, /* 24 */
424 -ENXIO, /* 25 */
425 -ENXIO, /* 26 */
426 -ENXIO, /* 27 */
427 IRQ_LPC32XX_GPI_28,
428 };
429
430 static int lpc32xx_gpio_to_irq_gpi_p3(struct gpio_chip *chip, unsigned offset)
431 {
432 if (offset < ARRAY_SIZE(lpc32xx_gpio_to_irq_gpi_p3_table))
433 return lpc32xx_gpio_to_irq_gpi_p3_table[offset];
434 return -ENXIO;
435 }
436
437 static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = {
438 {
439 .chip = {
440 .label = "gpio_p0",
441 .direction_input = lpc32xx_gpio_dir_input_p012,
442 .get = lpc32xx_gpio_get_value_p012,
443 .direction_output = lpc32xx_gpio_dir_output_p012,
444 .set = lpc32xx_gpio_set_value_p012,
445 .request = lpc32xx_gpio_request,
446 .to_irq = lpc32xx_gpio_to_irq_p01,
447 .base = LPC32XX_GPIO_P0_GRP,
448 .ngpio = LPC32XX_GPIO_P0_MAX,
449 .names = gpio_p0_names,
450 .can_sleep = 0,
451 },
452 .gpio_grp = &gpio_grp_regs_p0,
453 },
454 {
455 .chip = {
456 .label = "gpio_p1",
457 .direction_input = lpc32xx_gpio_dir_input_p012,
458 .get = lpc32xx_gpio_get_value_p012,
459 .direction_output = lpc32xx_gpio_dir_output_p012,
460 .set = lpc32xx_gpio_set_value_p012,
461 .request = lpc32xx_gpio_request,
462 .to_irq = lpc32xx_gpio_to_irq_p01,
463 .base = LPC32XX_GPIO_P1_GRP,
464 .ngpio = LPC32XX_GPIO_P1_MAX,
465 .names = gpio_p1_names,
466 .can_sleep = 0,
467 },
468 .gpio_grp = &gpio_grp_regs_p1,
469 },
470 {
471 .chip = {
472 .label = "gpio_p2",
473 .direction_input = lpc32xx_gpio_dir_input_p012,
474 .get = lpc32xx_gpio_get_value_p012,
475 .direction_output = lpc32xx_gpio_dir_output_p012,
476 .set = lpc32xx_gpio_set_value_p012,
477 .request = lpc32xx_gpio_request,
478 .base = LPC32XX_GPIO_P2_GRP,
479 .ngpio = LPC32XX_GPIO_P2_MAX,
480 .names = gpio_p2_names,
481 .can_sleep = 0,
482 },
483 .gpio_grp = &gpio_grp_regs_p2,
484 },
485 {
486 .chip = {
487 .label = "gpio_p3",
488 .direction_input = lpc32xx_gpio_dir_input_p3,
489 .get = lpc32xx_gpio_get_value_p3,
490 .direction_output = lpc32xx_gpio_dir_output_p3,
491 .set = lpc32xx_gpio_set_value_p3,
492 .request = lpc32xx_gpio_request,
493 .to_irq = lpc32xx_gpio_to_irq_gpio_p3,
494 .base = LPC32XX_GPIO_P3_GRP,
495 .ngpio = LPC32XX_GPIO_P3_MAX,
496 .names = gpio_p3_names,
497 .can_sleep = 0,
498 },
499 .gpio_grp = &gpio_grp_regs_p3,
500 },
501 {
502 .chip = {
503 .label = "gpi_p3",
504 .direction_input = lpc32xx_gpio_dir_in_always,
505 .get = lpc32xx_gpi_get_value,
506 .request = lpc32xx_gpio_request,
507 .to_irq = lpc32xx_gpio_to_irq_gpi_p3,
508 .base = LPC32XX_GPI_P3_GRP,
509 .ngpio = LPC32XX_GPI_P3_MAX,
510 .names = gpi_p3_names,
511 .can_sleep = 0,
512 },
513 .gpio_grp = &gpio_grp_regs_p3,
514 },
515 {
516 .chip = {
517 .label = "gpo_p3",
518 .direction_output = lpc32xx_gpio_dir_out_always,
519 .set = lpc32xx_gpo_set_value,
520 .get = lpc32xx_gpo_get_value,
521 .request = lpc32xx_gpio_request,
522 .base = LPC32XX_GPO_P3_GRP,
523 .ngpio = LPC32XX_GPO_P3_MAX,
524 .names = gpo_p3_names,
525 .can_sleep = 0,
526 },
527 .gpio_grp = &gpio_grp_regs_p3,
528 },
529 };
530
531 static int lpc32xx_of_xlate(struct gpio_chip *gc,
532 const struct of_phandle_args *gpiospec, u32 *flags)
533 {
534 /* Is this the correct bank? */
535 u32 bank = gpiospec->args[0];
536 if ((bank > ARRAY_SIZE(lpc32xx_gpiochip) ||
537 (gc != &lpc32xx_gpiochip[bank].chip)))
538 return -EINVAL;
539
540 if (flags)
541 *flags = gpiospec->args[2];
542 return gpiospec->args[1];
543 }
544
545 static int __devinit lpc32xx_gpio_probe(struct platform_device *pdev)
546 {
547 int i;
548
549 for (i = 0; i < ARRAY_SIZE(lpc32xx_gpiochip); i++) {
550 if (pdev->dev.of_node) {
551 lpc32xx_gpiochip[i].chip.of_xlate = lpc32xx_of_xlate;
552 lpc32xx_gpiochip[i].chip.of_gpio_n_cells = 3;
553 lpc32xx_gpiochip[i].chip.of_node = pdev->dev.of_node;
554 }
555 gpiochip_add(&lpc32xx_gpiochip[i].chip);
556 }
557
558 return 0;
559 }
560
561 #ifdef CONFIG_OF
562 static struct of_device_id lpc32xx_gpio_of_match[] __devinitdata = {
563 { .compatible = "nxp,lpc3220-gpio", },
564 { },
565 };
566 #endif
567
568 static struct platform_driver lpc32xx_gpio_driver = {
569 .driver = {
570 .name = "lpc32xx-gpio",
571 .owner = THIS_MODULE,
572 .of_match_table = of_match_ptr(lpc32xx_gpio_of_match),
573 },
574 .probe = lpc32xx_gpio_probe,
575 };
576
577 module_platform_driver(lpc32xx_gpio_driver);
Linus' kernel tree