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gpio/samsung: only register available gpio banks
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / gpio / gpio-samsung.c
blobc87b65af8c962cb156e6c816a9eb2e4ec17149b7
1 /*
2 * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
3 * http://www.samsung.com/
4 *
5 * Copyright 2008 Openmoko, Inc.
6 * Copyright 2008 Simtec Electronics
7 * Ben Dooks <ben@simtec.co.uk>
8 * http://armlinux.simtec.co.uk/
9 *
10 * SAMSUNG - GPIOlib support
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 */
16
17 #include <linux/kernel.h>
18 #include <linux/irq.h>
19 #include <linux/io.h>
20 #include <linux/gpio.h>
21 #include <linux/init.h>
22 #include <linux/spinlock.h>
23 #include <linux/module.h>
24 #include <linux/interrupt.h>
25 #include <linux/sysdev.h>
26 #include <linux/ioport.h>
27
28 #include <asm/irq.h>
29
30 #include <mach/hardware.h>
31 #include <mach/map.h>
32 #include <mach/regs-clock.h>
33 #include <mach/regs-gpio.h>
34
35 #include <plat/cpu.h>
36 #include <plat/gpio-core.h>
37 #include <plat/gpio-cfg.h>
38 #include <plat/gpio-cfg-helpers.h>
39 #include <plat/gpio-fns.h>
40 #include <plat/pm.h>
41
42 #ifndef DEBUG_GPIO
43 #define gpio_dbg(x...) do { } while (0)
44 #else
45 #define gpio_dbg(x...) printk(KERN_DEBUG x)
46 #endif
47
48 int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip,
49 unsigned int off, samsung_gpio_pull_t pull)
50 {
51 void __iomem *reg = chip->base + 0x08;
52 int shift = off * 2;
53 u32 pup;
54
55 pup = __raw_readl(reg);
56 pup &= ~(3 << shift);
57 pup |= pull << shift;
58 __raw_writel(pup, reg);
59
60 return 0;
61 }
62
63 samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip,
64 unsigned int off)
65 {
66 void __iomem *reg = chip->base + 0x08;
67 int shift = off * 2;
68 u32 pup = __raw_readl(reg);
69
70 pup >>= shift;
71 pup &= 0x3;
72
73 return (__force samsung_gpio_pull_t)pup;
74 }
75
76 int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip,
77 unsigned int off, samsung_gpio_pull_t pull)
78 {
79 switch (pull) {
80 case S3C_GPIO_PULL_NONE:
81 pull = 0x01;
82 break;
83 case S3C_GPIO_PULL_UP:
84 pull = 0x00;
85 break;
86 case S3C_GPIO_PULL_DOWN:
87 pull = 0x02;
88 break;
89 }
90 return samsung_gpio_setpull_updown(chip, off, pull);
91 }
92
93 samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip,
94 unsigned int off)
95 {
96 samsung_gpio_pull_t pull;
97
98 pull = samsung_gpio_getpull_updown(chip, off);
99
100 switch (pull) {
101 case 0x00:
102 pull = S3C_GPIO_PULL_UP;
103 break;
104 case 0x01:
105 case 0x03:
106 pull = S3C_GPIO_PULL_NONE;
107 break;
108 case 0x02:
109 pull = S3C_GPIO_PULL_DOWN;
110 break;
111 }
112
113 return pull;
114 }
115
116 static int s3c24xx_gpio_setpull_1(struct samsung_gpio_chip *chip,
117 unsigned int off, samsung_gpio_pull_t pull,
118 samsung_gpio_pull_t updown)
119 {
120 void __iomem *reg = chip->base + 0x08;
121 u32 pup = __raw_readl(reg);
122
123 if (pull == updown)
124 pup &= ~(1 << off);
125 else if (pull == S3C_GPIO_PULL_NONE)
126 pup |= (1 << off);
127 else
128 return -EINVAL;
129
130 __raw_writel(pup, reg);
131 return 0;
132 }
133
134 static samsung_gpio_pull_t s3c24xx_gpio_getpull_1(struct samsung_gpio_chip *chip,
135 unsigned int off,
136 samsung_gpio_pull_t updown)
137 {
138 void __iomem *reg = chip->base + 0x08;
139 u32 pup = __raw_readl(reg);
140
141 pup &= (1 << off);
142 return pup ? S3C_GPIO_PULL_NONE : updown;
143 }
144
145 samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip,
146 unsigned int off)
147 {
148 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP);
149 }
150
151 int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip,
152 unsigned int off, samsung_gpio_pull_t pull)
153 {
154 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP);
155 }
156
157 samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip,
158 unsigned int off)
159 {
160 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN);
161 }
162
163 int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
164 unsigned int off, samsung_gpio_pull_t pull)
165 {
166 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
167 }
168
169 static int exynos4_gpio_setpull(struct samsung_gpio_chip *chip,
170 unsigned int off, samsung_gpio_pull_t pull)
171 {
172 if (pull == S3C_GPIO_PULL_UP)
173 pull = 3;
174
175 return samsung_gpio_setpull_updown(chip, off, pull);
176 }
177
178 static samsung_gpio_pull_t exynos4_gpio_getpull(struct samsung_gpio_chip *chip,
179 unsigned int off)
180 {
181 samsung_gpio_pull_t pull;
182
183 pull = samsung_gpio_getpull_updown(chip, off);
184
185 if (pull == 3)
186 pull = S3C_GPIO_PULL_UP;
187
188 return pull;
189 }
190
191 /*
192 * samsung_gpio_setcfg_2bit - Samsung 2bit style GPIO configuration.
193 * @chip: The gpio chip that is being configured.
194 * @off: The offset for the GPIO being configured.
195 * @cfg: The configuration value to set.
196 *
197 * This helper deal with the GPIO cases where the control register
198 * has two bits of configuration per gpio, which have the following
199 * functions:
200 * 00 = input
201 * 01 = output
202 * 1x = special function
203 */
204
205 static int samsung_gpio_setcfg_2bit(struct samsung_gpio_chip *chip,
206 unsigned int off, unsigned int cfg)
207 {
208 void __iomem *reg = chip->base;
209 unsigned int shift = off * 2;
210 u32 con;
211
212 if (samsung_gpio_is_cfg_special(cfg)) {
213 cfg &= 0xf;
214 if (cfg > 3)
215 return -EINVAL;
216
217 cfg <<= shift;
218 }
219
220 con = __raw_readl(reg);
221 con &= ~(0x3 << shift);
222 con |= cfg;
223 __raw_writel(con, reg);
224
225 return 0;
226 }
227
228 /*
229 * samsung_gpio_getcfg_2bit - Samsung 2bit style GPIO configuration read.
230 * @chip: The gpio chip that is being configured.
231 * @off: The offset for the GPIO being configured.
232 *
233 * The reverse of samsung_gpio_setcfg_2bit(). Will return a value whicg
234 * could be directly passed back to samsung_gpio_setcfg_2bit(), from the
235 * S3C_GPIO_SPECIAL() macro.
236 */
237
238 static unsigned int samsung_gpio_getcfg_2bit(struct samsung_gpio_chip *chip,
239 unsigned int off)
240 {
241 u32 con;
242
243 con = __raw_readl(chip->base);
244 con >>= off * 2;
245 con &= 3;
246
247 /* this conversion works for IN and OUT as well as special mode */
248 return S3C_GPIO_SPECIAL(con);
249 }
250
251 /*
252 * samsung_gpio_setcfg_4bit - Samsung 4bit single register GPIO config.
253 * @chip: The gpio chip that is being configured.
254 * @off: The offset for the GPIO being configured.
255 * @cfg: The configuration value to set.
256 *
257 * This helper deal with the GPIO cases where the control register has 4 bits
258 * of control per GPIO, generally in the form of:
259 * 0000 = Input
260 * 0001 = Output
261 * others = Special functions (dependent on bank)
262 *
263 * Note, since the code to deal with the case where there are two control
264 * registers instead of one, we do not have a separate set of functions for
265 * each case.
266 */
267
268 static int samsung_gpio_setcfg_4bit(struct samsung_gpio_chip *chip,
269 unsigned int off, unsigned int cfg)
270 {
271 void __iomem *reg = chip->base;
272 unsigned int shift = (off & 7) * 4;
273 u32 con;
274
275 if (off < 8 && chip->chip.ngpio > 8)
276 reg -= 4;
277
278 if (samsung_gpio_is_cfg_special(cfg)) {
279 cfg &= 0xf;
280 cfg <<= shift;
281 }
282
283 con = __raw_readl(reg);
284 con &= ~(0xf << shift);
285 con |= cfg;
286 __raw_writel(con, reg);
287
288 return 0;
289 }
290
291 /*
292 * samsung_gpio_getcfg_4bit - Samsung 4bit single register GPIO config read.
293 * @chip: The gpio chip that is being configured.
294 * @off: The offset for the GPIO being configured.
295 *
296 * The reverse of samsung_gpio_setcfg_4bit(), turning a gpio configuration
297 * register setting into a value the software can use, such as could be passed
298 * to samsung_gpio_setcfg_4bit().
299 *
300 * @sa samsung_gpio_getcfg_2bit
301 */
302
303 static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
304 unsigned int off)
305 {
306 void __iomem *reg = chip->base;
307 unsigned int shift = (off & 7) * 4;
308 u32 con;
309
310 if (off < 8 && chip->chip.ngpio > 8)
311 reg -= 4;
312
313 con = __raw_readl(reg);
314 con >>= shift;
315 con &= 0xf;
316
317 /* this conversion works for IN and OUT as well as special mode */
318 return S3C_GPIO_SPECIAL(con);
319 }
320
321 /*
322 * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A)
323 * @chip: The gpio chip that is being configured.
324 * @off: The offset for the GPIO being configured.
325 * @cfg: The configuration value to set.
326 *
327 * This helper deal with the GPIO cases where the control register
328 * has one bit of configuration for the gpio, where setting the bit
329 * means the pin is in special function mode and unset means output.
330 */
331
332 static int s3c24xx_gpio_setcfg_abank(struct samsung_gpio_chip *chip,
333 unsigned int off, unsigned int cfg)
334 {
335 void __iomem *reg = chip->base;
336 unsigned int shift = off;
337 u32 con;
338
339 if (samsung_gpio_is_cfg_special(cfg)) {
340 cfg &= 0xf;
341
342 /* Map output to 0, and SFN2 to 1 */
343 cfg -= 1;
344 if (cfg > 1)
345 return -EINVAL;
346
347 cfg <<= shift;
348 }
349
350 con = __raw_readl(reg);
351 con &= ~(0x1 << shift);
352 con |= cfg;
353 __raw_writel(con, reg);
354
355 return 0;
356 }
357
358 /*
359 * s3c24xx_gpio_getcfg_abank - S3C24XX style GPIO configuration read (Bank A)
360 * @chip: The gpio chip that is being configured.
361 * @off: The offset for the GPIO being configured.
362 *
363 * The reverse of s3c24xx_gpio_setcfg_abank() turning an GPIO into a usable
364 * GPIO configuration value.
365 *
366 * @sa samsung_gpio_getcfg_2bit
367 * @sa samsung_gpio_getcfg_4bit
368 */
369
370 static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
371 unsigned int off)
372 {
373 u32 con;
374
375 con = __raw_readl(chip->base);
376 con >>= off;
377 con &= 1;
378 con++;
379
380 return S3C_GPIO_SFN(con);
381 }
382
383 static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
384 unsigned int off, unsigned int cfg)
385 {
386 void __iomem *reg = chip->base;
387 unsigned int shift;
388 u32 con;
389
390 switch (off) {
391 case 0:
392 case 1:
393 case 2:
394 case 3:
395 case 4:
396 case 5:
397 shift = (off & 7) * 4;
398 reg -= 4;
399 break;
400 case 6:
401 shift = ((off + 1) & 7) * 4;
402 reg -= 4;
403 default:
404 shift = ((off + 1) & 7) * 4;
405 break;
406 }
407
408 if (samsung_gpio_is_cfg_special(cfg)) {
409 cfg &= 0xf;
410 cfg <<= shift;
411 }
412
413 con = __raw_readl(reg);
414 con &= ~(0xf << shift);
415 con |= cfg;
416 __raw_writel(con, reg);
417
418 return 0;
419 }
420
421 static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
422 int nr_chips)
423 {
424 for (; nr_chips > 0; nr_chips--, chipcfg++) {
425 if (!chipcfg->set_config)
426 chipcfg->set_config = samsung_gpio_setcfg_4bit;
427 if (!chipcfg->get_config)
428 chipcfg->get_config = samsung_gpio_getcfg_4bit;
429 if (!chipcfg->set_pull)
430 chipcfg->set_pull = samsung_gpio_setpull_updown;
431 if (!chipcfg->get_pull)
432 chipcfg->get_pull = samsung_gpio_getpull_updown;
433 }
434 }
435
436 struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
437 .set_config = samsung_gpio_setcfg_2bit,
438 .get_config = samsung_gpio_getcfg_2bit,
439 };
440
441 static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
442 .set_config = s3c24xx_gpio_setcfg_abank,
443 .get_config = s3c24xx_gpio_getcfg_abank,
444 };
445
446 static struct samsung_gpio_cfg exynos4_gpio_cfg = {
447 .set_pull = exynos4_gpio_setpull,
448 .get_pull = exynos4_gpio_getpull,
449 .set_config = samsung_gpio_setcfg_4bit,
450 .get_config = samsung_gpio_getcfg_4bit,
451 };
452
453 static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
454 .cfg_eint = 0x3,
455 .set_config = s5p64x0_gpio_setcfg_rbank,
456 .get_config = samsung_gpio_getcfg_4bit,
457 .set_pull = samsung_gpio_setpull_updown,
458 .get_pull = samsung_gpio_getpull_updown,
459 };
460
461 static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
462 {
463 .cfg_eint = 0x0,
464 }, {
465 .cfg_eint = 0x3,
466 }, {
467 .cfg_eint = 0x7,
468 }, {
469 .cfg_eint = 0xF,
470 }, {
471 .cfg_eint = 0x0,
472 .set_config = samsung_gpio_setcfg_2bit,
473 .get_config = samsung_gpio_getcfg_2bit,
474 }, {
475 .cfg_eint = 0x2,
476 .set_config = samsung_gpio_setcfg_2bit,
477 .get_config = samsung_gpio_getcfg_2bit,
478 }, {
479 .cfg_eint = 0x3,
480 .set_config = samsung_gpio_setcfg_2bit,
481 .get_config = samsung_gpio_getcfg_2bit,
482 }, {
483 .set_config = samsung_gpio_setcfg_2bit,
484 .get_config = samsung_gpio_getcfg_2bit,
485 },
486 };
487
488 /*
489 * Default routines for controlling GPIO, based on the original S3C24XX
490 * GPIO functions which deal with the case where each gpio bank of the
491 * chip is as following:
492 *
493 * base + 0x00: Control register, 2 bits per gpio
494 * gpio n: 2 bits starting at (2*n)
495 * 00 = input, 01 = output, others mean special-function
496 * base + 0x04: Data register, 1 bit per gpio
497 * bit n: data bit n
498 */
499
500 static int samsung_gpiolib_2bit_input(struct gpio_chip *chip, unsigned offset)
501 {
502 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
503 void __iomem *base = ourchip->base;
504 unsigned long flags;
505 unsigned long con;
506
507 samsung_gpio_lock(ourchip, flags);
508
509 con = __raw_readl(base + 0x00);
510 con &= ~(3 << (offset * 2));
511
512 __raw_writel(con, base + 0x00);
513
514 samsung_gpio_unlock(ourchip, flags);
515 return 0;
516 }
517
518 static int samsung_gpiolib_2bit_output(struct gpio_chip *chip,
519 unsigned offset, int value)
520 {
521 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
522 void __iomem *base = ourchip->base;
523 unsigned long flags;
524 unsigned long dat;
525 unsigned long con;
526
527 samsung_gpio_lock(ourchip, flags);
528
529 dat = __raw_readl(base + 0x04);
530 dat &= ~(1 << offset);
531 if (value)
532 dat |= 1 << offset;
533 __raw_writel(dat, base + 0x04);
534
535 con = __raw_readl(base + 0x00);
536 con &= ~(3 << (offset * 2));
537 con |= 1 << (offset * 2);
538
539 __raw_writel(con, base + 0x00);
540 __raw_writel(dat, base + 0x04);
541
542 samsung_gpio_unlock(ourchip, flags);
543 return 0;
544 }
545
546 /*
547 * The samsung_gpiolib_4bit routines are to control the gpio banks where
548 * the gpio configuration register (GPxCON) has 4 bits per GPIO, as the
549 * following example:
550 *
551 * base + 0x00: Control register, 4 bits per gpio
552 * gpio n: 4 bits starting at (4*n)
553 * 0000 = input, 0001 = output, others mean special-function
554 * base + 0x04: Data register, 1 bit per gpio
555 * bit n: data bit n
556 *
557 * Note, since the data register is one bit per gpio and is at base + 0x4
558 * we can use samsung_gpiolib_get and samsung_gpiolib_set to change the
559 * state of the output.
560 */
561
562 static int samsung_gpiolib_4bit_input(struct gpio_chip *chip,
563 unsigned int offset)
564 {
565 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
566 void __iomem *base = ourchip->base;
567 unsigned long con;
568
569 con = __raw_readl(base + GPIOCON_OFF);
570 con &= ~(0xf << con_4bit_shift(offset));
571 __raw_writel(con, base + GPIOCON_OFF);
572
573 gpio_dbg("%s: %p: CON now %08lx\n", __func__, base, con);
574
575 return 0;
576 }
577
578 static int samsung_gpiolib_4bit_output(struct gpio_chip *chip,
579 unsigned int offset, int value)
580 {
581 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
582 void __iomem *base = ourchip->base;
583 unsigned long con;
584 unsigned long dat;
585
586 con = __raw_readl(base + GPIOCON_OFF);
587 con &= ~(0xf << con_4bit_shift(offset));
588 con |= 0x1 << con_4bit_shift(offset);
589
590 dat = __raw_readl(base + GPIODAT_OFF);
591
592 if (value)
593 dat |= 1 << offset;
594 else
595 dat &= ~(1 << offset);
596
597 __raw_writel(dat, base + GPIODAT_OFF);
598 __raw_writel(con, base + GPIOCON_OFF);
599 __raw_writel(dat, base + GPIODAT_OFF);
600
601 gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
602
603 return 0;
604 }
605
606 /*
607 * The next set of routines are for the case where the GPIO configuration
608 * registers are 4 bits per GPIO but there is more than one register (the
609 * bank has more than 8 GPIOs.
610 *
611 * This case is the similar to the 4 bit case, but the registers are as
612 * follows:
613 *
614 * base + 0x00: Control register, 4 bits per gpio (lower 8 GPIOs)
615 * gpio n: 4 bits starting at (4*n)
616 * 0000 = input, 0001 = output, others mean special-function
617 * base + 0x04: Control register, 4 bits per gpio (up to 8 additions GPIOs)
618 * gpio n: 4 bits starting at (4*n)
619 * 0000 = input, 0001 = output, others mean special-function
620 * base + 0x08: Data register, 1 bit per gpio
621 * bit n: data bit n
622 *
623 * To allow us to use the samsung_gpiolib_get and samsung_gpiolib_set
624 * routines we store the 'base + 0x4' address so that these routines see
625 * the data register at ourchip->base + 0x04.
626 */
627
628 static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip,
629 unsigned int offset)
630 {
631 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
632 void __iomem *base = ourchip->base;
633 void __iomem *regcon = base;
634 unsigned long con;
635
636 if (offset > 7)
637 offset -= 8;
638 else
639 regcon -= 4;
640
641 con = __raw_readl(regcon);
642 con &= ~(0xf << con_4bit_shift(offset));
643 __raw_writel(con, regcon);
644
645 gpio_dbg("%s: %p: CON %08lx\n", __func__, base, con);
646
647 return 0;
648 }
649
650 static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
651 unsigned int offset, int value)
652 {
653 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
654 void __iomem *base = ourchip->base;
655 void __iomem *regcon = base;
656 unsigned long con;
657 unsigned long dat;
658 unsigned con_offset = offset;
659
660 if (con_offset > 7)
661 con_offset -= 8;
662 else
663 regcon -= 4;
664
665 con = __raw_readl(regcon);
666 con &= ~(0xf << con_4bit_shift(con_offset));
667 con |= 0x1 << con_4bit_shift(con_offset);
668
669 dat = __raw_readl(base + GPIODAT_OFF);
670
671 if (value)
672 dat |= 1 << offset;
673 else
674 dat &= ~(1 << offset);
675
676 __raw_writel(dat, base + GPIODAT_OFF);
677 __raw_writel(con, regcon);
678 __raw_writel(dat, base + GPIODAT_OFF);
679
680 gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
681
682 return 0;
683 }
684
685 /* The next set of routines are for the case of s3c24xx bank a */
686
687 static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
688 {
689 return -EINVAL;
690 }
691
692 static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
693 unsigned offset, int value)
694 {
695 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
696 void __iomem *base = ourchip->base;
697 unsigned long flags;
698 unsigned long dat;
699 unsigned long con;
700
701 local_irq_save(flags);
702
703 con = __raw_readl(base + 0x00);
704 dat = __raw_readl(base + 0x04);
705
706 dat &= ~(1 << offset);
707 if (value)
708 dat |= 1 << offset;
709
710 __raw_writel(dat, base + 0x04);
711
712 con &= ~(1 << offset);
713
714 __raw_writel(con, base + 0x00);
715 __raw_writel(dat, base + 0x04);
716
717 local_irq_restore(flags);
718 return 0;
719 }
720
721 /* The next set of routines are for the case of s5p64x0 bank r */
722
723 static int s5p64x0_gpiolib_rbank_input(struct gpio_chip *chip,
724 unsigned int offset)
725 {
726 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
727 void __iomem *base = ourchip->base;
728 void __iomem *regcon = base;
729 unsigned long con;
730 unsigned long flags;
731
732 switch (offset) {
733 case 6:
734 offset += 1;
735 case 0:
736 case 1:
737 case 2:
738 case 3:
739 case 4:
740 case 5:
741 regcon -= 4;
742 break;
743 default:
744 offset -= 7;
745 break;
746 }
747
748 samsung_gpio_lock(ourchip, flags);
749
750 con = __raw_readl(regcon);
751 con &= ~(0xf << con_4bit_shift(offset));
752 __raw_writel(con, regcon);
753
754 samsung_gpio_unlock(ourchip, flags);
755
756 return 0;
757 }
758
759 static int s5p64x0_gpiolib_rbank_output(struct gpio_chip *chip,
760 unsigned int offset, int value)
761 {
762 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
763 void __iomem *base = ourchip->base;
764 void __iomem *regcon = base;
765 unsigned long con;
766 unsigned long dat;
767 unsigned long flags;
768 unsigned con_offset = offset;
769
770 switch (con_offset) {
771 case 6:
772 con_offset += 1;
773 case 0:
774 case 1:
775 case 2:
776 case 3:
777 case 4:
778 case 5:
779 regcon -= 4;
780 break;
781 default:
782 con_offset -= 7;
783 break;
784 }
785
786 samsung_gpio_lock(ourchip, flags);
787
788 con = __raw_readl(regcon);
789 con &= ~(0xf << con_4bit_shift(con_offset));
790 con |= 0x1 << con_4bit_shift(con_offset);
791
792 dat = __raw_readl(base + GPIODAT_OFF);
793 if (value)
794 dat |= 1 << offset;
795 else
796 dat &= ~(1 << offset);
797
798 __raw_writel(con, regcon);
799 __raw_writel(dat, base + GPIODAT_OFF);
800
801 samsung_gpio_unlock(ourchip, flags);
802
803 return 0;
804 }
805
806 static void samsung_gpiolib_set(struct gpio_chip *chip,
807 unsigned offset, int value)
808 {
809 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
810 void __iomem *base = ourchip->base;
811 unsigned long flags;
812 unsigned long dat;
813
814 samsung_gpio_lock(ourchip, flags);
815
816 dat = __raw_readl(base + 0x04);
817 dat &= ~(1 << offset);
818 if (value)
819 dat |= 1 << offset;
820 __raw_writel(dat, base + 0x04);
821
822 samsung_gpio_unlock(ourchip, flags);
823 }
824
825 static int samsung_gpiolib_get(struct gpio_chip *chip, unsigned offset)
826 {
827 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
828 unsigned long val;
829
830 val = __raw_readl(ourchip->base + 0x04);
831 val >>= offset;
832 val &= 1;
833
834 return val;
835 }
836
837 /*
838 * CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios
839 * for use with the configuration calls, and other parts of the s3c gpiolib
840 * support code.
841 *
842 * Not all s3c support code will need this, as some configurations of cpu
843 * may only support one or two different configuration options and have an
844 * easy gpio to samsung_gpio_chip mapping function. If this is the case, then
845 * the machine support file should provide its own samsung_gpiolib_getchip()
846 * and any other necessary functions.
847 */
848
849 #ifdef CONFIG_S3C_GPIO_TRACK
850 struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END];
851
852 static __init void s3c_gpiolib_track(struct samsung_gpio_chip *chip)
853 {
854 unsigned int gpn;
855 int i;
856
857 gpn = chip->chip.base;
858 for (i = 0; i < chip->chip.ngpio; i++, gpn++) {
859 BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios));
860 s3c_gpios[gpn] = chip;
861 }
862 }
863 #endif /* CONFIG_S3C_GPIO_TRACK */
864
865 /*
866 * samsung_gpiolib_add() - add the Samsung gpio_chip.
867 * @chip: The chip to register
868 *
869 * This is a wrapper to gpiochip_add() that takes our specific gpio chip
870 * information and makes the necessary alterations for the platform and
871 * notes the information for use with the configuration systems and any
872 * other parts of the system.
873 */
874
875 static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
876 {
877 struct gpio_chip *gc = &chip->chip;
878 int ret;
879
880 BUG_ON(!chip->base);
881 BUG_ON(!gc->label);
882 BUG_ON(!gc->ngpio);
883
884 spin_lock_init(&chip->lock);
885
886 if (!gc->direction_input)
887 gc->direction_input = samsung_gpiolib_2bit_input;
888 if (!gc->direction_output)
889 gc->direction_output = samsung_gpiolib_2bit_output;
890 if (!gc->set)
891 gc->set = samsung_gpiolib_set;
892 if (!gc->get)
893 gc->get = samsung_gpiolib_get;
894
895 #ifdef CONFIG_PM
896 if (chip->pm != NULL) {
897 if (!chip->pm->save || !chip->pm->resume)
898 printk(KERN_ERR "gpio: %s has missing PM functions\n",
899 gc->label);
900 } else
901 printk(KERN_ERR "gpio: %s has no PM function\n", gc->label);
902 #endif
903
904 /* gpiochip_add() prints own failure message on error. */
905 ret = gpiochip_add(gc);
906 if (ret >= 0)
907 s3c_gpiolib_track(chip);
908 }
909
910 static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
911 int nr_chips, void __iomem *base)
912 {
913 int i;
914 struct gpio_chip *gc = &chip->chip;
915
916 for (i = 0 ; i < nr_chips; i++, chip++) {
917 /* skip banks not present on SoC */
918 if (chip->chip.base >= S3C_GPIO_END)
919 continue;
920
921 if (!chip->config)
922 chip->config = &s3c24xx_gpiocfg_default;
923 if (!chip->pm)
924 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
925 if ((base != NULL) && (chip->base == NULL))
926 chip->base = base + ((i) * 0x10);
927
928 if (!gc->direction_input)
929 gc->direction_input = samsung_gpiolib_2bit_input;
930 if (!gc->direction_output)
931 gc->direction_output = samsung_gpiolib_2bit_output;
932
933 samsung_gpiolib_add(chip);
934 }
935 }
936
937 static void __init samsung_gpiolib_add_2bit_chips(struct samsung_gpio_chip *chip,
938 int nr_chips, void __iomem *base,
939 unsigned int offset)
940 {
941 int i;
942
943 for (i = 0 ; i < nr_chips; i++, chip++) {
944 chip->chip.direction_input = samsung_gpiolib_2bit_input;
945 chip->chip.direction_output = samsung_gpiolib_2bit_output;
946
947 if (!chip->config)
948 chip->config = &samsung_gpio_cfgs[7];
949 if (!chip->pm)
950 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
951 if ((base != NULL) && (chip->base == NULL))
952 chip->base = base + ((i) * offset);
953
954 samsung_gpiolib_add(chip);
955 }
956 }
957
958 /*
959 * samsung_gpiolib_add_4bit_chips - 4bit single register GPIO config.
960 * @chip: The gpio chip that is being configured.
961 * @nr_chips: The no of chips (gpio ports) for the GPIO being configured.
962 *
963 * This helper deal with the GPIO cases where the control register has 4 bits
964 * of control per GPIO, generally in the form of:
965 * 0000 = Input
966 * 0001 = Output
967 * others = Special functions (dependent on bank)
968 *
969 * Note, since the code to deal with the case where there are two control
970 * registers instead of one, we do not have a separate set of function
971 * (samsung_gpiolib_add_4bit2_chips)for each case.
972 */
973
974 static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip,
975 int nr_chips, void __iomem *base)
976 {
977 int i;
978
979 for (i = 0 ; i < nr_chips; i++, chip++) {
980 chip->chip.direction_input = samsung_gpiolib_4bit_input;
981 chip->chip.direction_output = samsung_gpiolib_4bit_output;
982
983 if (!chip->config)
984 chip->config = &samsung_gpio_cfgs[2];
985 if (!chip->pm)
986 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
987 if ((base != NULL) && (chip->base == NULL))
988 chip->base = base + ((i) * 0x20);
989
990 samsung_gpiolib_add(chip);
991 }
992 }
993
994 static void __init samsung_gpiolib_add_4bit2_chips(struct samsung_gpio_chip *chip,
995 int nr_chips)
996 {
997 for (; nr_chips > 0; nr_chips--, chip++) {
998 chip->chip.direction_input = samsung_gpiolib_4bit2_input;
999 chip->chip.direction_output = samsung_gpiolib_4bit2_output;
1000
1001 if (!chip->config)
1002 chip->config = &samsung_gpio_cfgs[2];
1003 if (!chip->pm)
1004 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1005
1006 samsung_gpiolib_add(chip);
1007 }
1008 }
1009
1010 static void __init s5p64x0_gpiolib_add_rbank(struct samsung_gpio_chip *chip,
1011 int nr_chips)
1012 {
1013 for (; nr_chips > 0; nr_chips--, chip++) {
1014 chip->chip.direction_input = s5p64x0_gpiolib_rbank_input;
1015 chip->chip.direction_output = s5p64x0_gpiolib_rbank_output;
1016
1017 if (!chip->pm)
1018 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1019
1020 samsung_gpiolib_add(chip);
1021 }
1022 }
1023
1024 int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
1025 {
1026 struct samsung_gpio_chip *samsung_chip = container_of(chip, struct samsung_gpio_chip, chip);
1027
1028 return samsung_chip->irq_base + offset;
1029 }
1030
1031 #ifdef CONFIG_PLAT_S3C24XX
1032 static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
1033 {
1034 if (offset < 4)
1035 return IRQ_EINT0 + offset;
1036
1037 if (offset < 8)
1038 return IRQ_EINT4 + offset - 4;
1039
1040 return -EINVAL;
1041 }
1042 #endif
1043
1044 #ifdef CONFIG_PLAT_S3C64XX
1045 static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin)
1046 {
1047 return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
1048 }
1049
1050 static int s3c64xx_gpiolib_lbank_to_irq(struct gpio_chip *chip, unsigned pin)
1051 {
1052 return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO;
1053 }
1054 #endif
1055
1056 struct samsung_gpio_chip s3c24xx_gpios[] = {
1057 #ifdef CONFIG_PLAT_S3C24XX
1058 {
1059 .config = &s3c24xx_gpiocfg_banka,
1060 .chip = {
1061 .base = S3C2410_GPA(0),
1062 .owner = THIS_MODULE,
1063 .label = "GPIOA",
1064 .ngpio = 24,
1065 .direction_input = s3c24xx_gpiolib_banka_input,
1066 .direction_output = s3c24xx_gpiolib_banka_output,
1067 },
1068 }, {
1069 .chip = {
1070 .base = S3C2410_GPB(0),
1071 .owner = THIS_MODULE,
1072 .label = "GPIOB",
1073 .ngpio = 16,
1074 },
1075 }, {
1076 .chip = {
1077 .base = S3C2410_GPC(0),
1078 .owner = THIS_MODULE,
1079 .label = "GPIOC",
1080 .ngpio = 16,
1081 },
1082 }, {
1083 .chip = {
1084 .base = S3C2410_GPD(0),
1085 .owner = THIS_MODULE,
1086 .label = "GPIOD",
1087 .ngpio = 16,
1088 },
1089 }, {
1090 .chip = {
1091 .base = S3C2410_GPE(0),
1092 .label = "GPIOE",
1093 .owner = THIS_MODULE,
1094 .ngpio = 16,
1095 },
1096 }, {
1097 .chip = {
1098 .base = S3C2410_GPF(0),
1099 .owner = THIS_MODULE,
1100 .label = "GPIOF",
1101 .ngpio = 8,
1102 .to_irq = s3c24xx_gpiolib_fbank_to_irq,
1103 },
1104 }, {
1105 .irq_base = IRQ_EINT8,
1106 .chip = {
1107 .base = S3C2410_GPG(0),
1108 .owner = THIS_MODULE,
1109 .label = "GPIOG",
1110 .ngpio = 16,
1111 .to_irq = samsung_gpiolib_to_irq,
1112 },
1113 }, {
1114 .chip = {
1115 .base = S3C2410_GPH(0),
1116 .owner = THIS_MODULE,
1117 .label = "GPIOH",
1118 .ngpio = 11,
1119 },
1120 },
1121 /* GPIOS for the S3C2443 and later devices. */
1122 {
1123 .base = S3C2440_GPJCON,
1124 .chip = {
1125 .base = S3C2410_GPJ(0),
1126 .owner = THIS_MODULE,
1127 .label = "GPIOJ",
1128 .ngpio = 16,
1129 },
1130 }, {
1131 .base = S3C2443_GPKCON,
1132 .chip = {
1133 .base = S3C2410_GPK(0),
1134 .owner = THIS_MODULE,
1135 .label = "GPIOK",
1136 .ngpio = 16,
1137 },
1138 }, {
1139 .base = S3C2443_GPLCON,
1140 .chip = {
1141 .base = S3C2410_GPL(0),
1142 .owner = THIS_MODULE,
1143 .label = "GPIOL",
1144 .ngpio = 15,
1145 },
1146 }, {
1147 .base = S3C2443_GPMCON,
1148 .chip = {
1149 .base = S3C2410_GPM(0),
1150 .owner = THIS_MODULE,
1151 .label = "GPIOM",
1152 .ngpio = 2,
1153 },
1154 },
1155 #endif
1156 };
1157
1158 /*
1159 * GPIO bank summary:
1160 *
1161 * Bank GPIOs Style SlpCon ExtInt Group
1162 * A 8 4Bit Yes 1
1163 * B 7 4Bit Yes 1
1164 * C 8 4Bit Yes 2
1165 * D 5 4Bit Yes 3
1166 * E 5 4Bit Yes None
1167 * F 16 2Bit Yes 4 [1]
1168 * G 7 4Bit Yes 5
1169 * H 10 4Bit[2] Yes 6
1170 * I 16 2Bit Yes None
1171 * J 12 2Bit Yes None
1172 * K 16 4Bit[2] No None
1173 * L 15 4Bit[2] No None
1174 * M 6 4Bit No IRQ_EINT
1175 * N 16 2Bit No IRQ_EINT
1176 * O 16 2Bit Yes 7
1177 * P 15 2Bit Yes 8
1178 * Q 9 2Bit Yes 9
1179 *
1180 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1181 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1182 */
1183
1184 static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
1185 #ifdef CONFIG_PLAT_S3C64XX
1186 {
1187 .chip = {
1188 .base = S3C64XX_GPA(0),
1189 .ngpio = S3C64XX_GPIO_A_NR,
1190 .label = "GPA",
1191 },
1192 }, {
1193 .chip = {
1194 .base = S3C64XX_GPB(0),
1195 .ngpio = S3C64XX_GPIO_B_NR,
1196 .label = "GPB",
1197 },
1198 }, {
1199 .chip = {
1200 .base = S3C64XX_GPC(0),
1201 .ngpio = S3C64XX_GPIO_C_NR,
1202 .label = "GPC",
1203 },
1204 }, {
1205 .chip = {
1206 .base = S3C64XX_GPD(0),
1207 .ngpio = S3C64XX_GPIO_D_NR,
1208 .label = "GPD",
1209 },
1210 }, {
1211 .config = &samsung_gpio_cfgs[0],
1212 .chip = {
1213 .base = S3C64XX_GPE(0),
1214 .ngpio = S3C64XX_GPIO_E_NR,
1215 .label = "GPE",
1216 },
1217 }, {
1218 .base = S3C64XX_GPG_BASE,
1219 .chip = {
1220 .base = S3C64XX_GPG(0),
1221 .ngpio = S3C64XX_GPIO_G_NR,
1222 .label = "GPG",
1223 },
1224 }, {
1225 .base = S3C64XX_GPM_BASE,
1226 .config = &samsung_gpio_cfgs[1],
1227 .chip = {
1228 .base = S3C64XX_GPM(0),
1229 .ngpio = S3C64XX_GPIO_M_NR,
1230 .label = "GPM",
1231 .to_irq = s3c64xx_gpiolib_mbank_to_irq,
1232 },
1233 },
1234 #endif
1235 };
1236
1237 static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
1238 #ifdef CONFIG_PLAT_S3C64XX
1239 {
1240 .base = S3C64XX_GPH_BASE + 0x4,
1241 .chip = {
1242 .base = S3C64XX_GPH(0),
1243 .ngpio = S3C64XX_GPIO_H_NR,
1244 .label = "GPH",
1245 },
1246 }, {
1247 .base = S3C64XX_GPK_BASE + 0x4,
1248 .config = &samsung_gpio_cfgs[0],
1249 .chip = {
1250 .base = S3C64XX_GPK(0),
1251 .ngpio = S3C64XX_GPIO_K_NR,
1252 .label = "GPK",
1253 },
1254 }, {
1255 .base = S3C64XX_GPL_BASE + 0x4,
1256 .config = &samsung_gpio_cfgs[1],
1257 .chip = {
1258 .base = S3C64XX_GPL(0),
1259 .ngpio = S3C64XX_GPIO_L_NR,
1260 .label = "GPL",
1261 .to_irq = s3c64xx_gpiolib_lbank_to_irq,
1262 },
1263 },
1264 #endif
1265 };
1266
1267 static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = {
1268 #ifdef CONFIG_PLAT_S3C64XX
1269 {
1270 .base = S3C64XX_GPF_BASE,
1271 .config = &samsung_gpio_cfgs[6],
1272 .chip = {
1273 .base = S3C64XX_GPF(0),
1274 .ngpio = S3C64XX_GPIO_F_NR,
1275 .label = "GPF",
1276 },
1277 }, {
1278 .config = &samsung_gpio_cfgs[7],
1279 .chip = {
1280 .base = S3C64XX_GPI(0),
1281 .ngpio = S3C64XX_GPIO_I_NR,
1282 .label = "GPI",
1283 },
1284 }, {
1285 .config = &samsung_gpio_cfgs[7],
1286 .chip = {
1287 .base = S3C64XX_GPJ(0),
1288 .ngpio = S3C64XX_GPIO_J_NR,
1289 .label = "GPJ",
1290 },
1291 }, {
1292 .config = &samsung_gpio_cfgs[6],
1293 .chip = {
1294 .base = S3C64XX_GPO(0),
1295 .ngpio = S3C64XX_GPIO_O_NR,
1296 .label = "GPO",
1297 },
1298 }, {
1299 .config = &samsung_gpio_cfgs[6],
1300 .chip = {
1301 .base = S3C64XX_GPP(0),
1302 .ngpio = S3C64XX_GPIO_P_NR,
1303 .label = "GPP",
1304 },
1305 }, {
1306 .config = &samsung_gpio_cfgs[6],
1307 .chip = {
1308 .base = S3C64XX_GPQ(0),
1309 .ngpio = S3C64XX_GPIO_Q_NR,
1310 .label = "GPQ",
1311 },
1312 }, {
1313 .base = S3C64XX_GPN_BASE,
1314 .irq_base = IRQ_EINT(0),
1315 .config = &samsung_gpio_cfgs[5],
1316 .chip = {
1317 .base = S3C64XX_GPN(0),
1318 .ngpio = S3C64XX_GPIO_N_NR,
1319 .label = "GPN",
1320 .to_irq = samsung_gpiolib_to_irq,
1321 },
1322 },
1323 #endif
1324 };
1325
1326 /*
1327 * S5P6440 GPIO bank summary:
1328 *
1329 * Bank GPIOs Style SlpCon ExtInt Group
1330 * A 6 4Bit Yes 1
1331 * B 7 4Bit Yes 1
1332 * C 8 4Bit Yes 2
1333 * F 2 2Bit Yes 4 [1]
1334 * G 7 4Bit Yes 5
1335 * H 10 4Bit[2] Yes 6
1336 * I 16 2Bit Yes None
1337 * J 12 2Bit Yes None
1338 * N 16 2Bit No IRQ_EINT
1339 * P 8 2Bit Yes 8
1340 * R 15 4Bit[2] Yes 8
1341 */
1342
1343 static struct samsung_gpio_chip s5p6440_gpios_4bit[] = {
1344 #ifdef CONFIG_CPU_S5P6440
1345 {
1346 .chip = {
1347 .base = S5P6440_GPA(0),
1348 .ngpio = S5P6440_GPIO_A_NR,
1349 .label = "GPA",
1350 },
1351 }, {
1352 .chip = {
1353 .base = S5P6440_GPB(0),
1354 .ngpio = S5P6440_GPIO_B_NR,
1355 .label = "GPB",
1356 },
1357 }, {
1358 .chip = {
1359 .base = S5P6440_GPC(0),
1360 .ngpio = S5P6440_GPIO_C_NR,
1361 .label = "GPC",
1362 },
1363 }, {
1364 .base = S5P64X0_GPG_BASE,
1365 .chip = {
1366 .base = S5P6440_GPG(0),
1367 .ngpio = S5P6440_GPIO_G_NR,
1368 .label = "GPG",
1369 },
1370 },
1371 #endif
1372 };
1373
1374 static struct samsung_gpio_chip s5p6440_gpios_4bit2[] = {
1375 #ifdef CONFIG_CPU_S5P6440
1376 {
1377 .base = S5P64X0_GPH_BASE + 0x4,
1378 .chip = {
1379 .base = S5P6440_GPH(0),
1380 .ngpio = S5P6440_GPIO_H_NR,
1381 .label = "GPH",
1382 },
1383 },
1384 #endif
1385 };
1386
1387 static struct samsung_gpio_chip s5p6440_gpios_rbank[] = {
1388 #ifdef CONFIG_CPU_S5P6440
1389 {
1390 .base = S5P64X0_GPR_BASE + 0x4,
1391 .config = &s5p64x0_gpio_cfg_rbank,
1392 .chip = {
1393 .base = S5P6440_GPR(0),
1394 .ngpio = S5P6440_GPIO_R_NR,
1395 .label = "GPR",
1396 },
1397 },
1398 #endif
1399 };
1400
1401 static struct samsung_gpio_chip s5p6440_gpios_2bit[] = {
1402 #ifdef CONFIG_CPU_S5P6440
1403 {
1404 .base = S5P64X0_GPF_BASE,
1405 .config = &samsung_gpio_cfgs[6],
1406 .chip = {
1407 .base = S5P6440_GPF(0),
1408 .ngpio = S5P6440_GPIO_F_NR,
1409 .label = "GPF",
1410 },
1411 }, {
1412 .base = S5P64X0_GPI_BASE,
1413 .config = &samsung_gpio_cfgs[4],
1414 .chip = {
1415 .base = S5P6440_GPI(0),
1416 .ngpio = S5P6440_GPIO_I_NR,
1417 .label = "GPI",
1418 },
1419 }, {
1420 .base = S5P64X0_GPJ_BASE,
1421 .config = &samsung_gpio_cfgs[4],
1422 .chip = {
1423 .base = S5P6440_GPJ(0),
1424 .ngpio = S5P6440_GPIO_J_NR,
1425 .label = "GPJ",
1426 },
1427 }, {
1428 .base = S5P64X0_GPN_BASE,
1429 .config = &samsung_gpio_cfgs[5],
1430 .chip = {
1431 .base = S5P6440_GPN(0),
1432 .ngpio = S5P6440_GPIO_N_NR,
1433 .label = "GPN",
1434 },
1435 }, {
1436 .base = S5P64X0_GPP_BASE,
1437 .config = &samsung_gpio_cfgs[6],
1438 .chip = {
1439 .base = S5P6440_GPP(0),
1440 .ngpio = S5P6440_GPIO_P_NR,
1441 .label = "GPP",
1442 },
1443 },
1444 #endif
1445 };
1446
1447 /*
1448 * S5P6450 GPIO bank summary:
1449 *
1450 * Bank GPIOs Style SlpCon ExtInt Group
1451 * A 6 4Bit Yes 1
1452 * B 7 4Bit Yes 1
1453 * C 8 4Bit Yes 2
1454 * D 8 4Bit Yes None
1455 * F 2 2Bit Yes None
1456 * G 14 4Bit[2] Yes 5
1457 * H 10 4Bit[2] Yes 6
1458 * I 16 2Bit Yes None
1459 * J 12 2Bit Yes None
1460 * K 5 4Bit Yes None
1461 * N 16 2Bit No IRQ_EINT
1462 * P 11 2Bit Yes 8
1463 * Q 14 2Bit Yes None
1464 * R 15 4Bit[2] Yes None
1465 * S 8 2Bit Yes None
1466 *
1467 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1468 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1469 */
1470
1471 static struct samsung_gpio_chip s5p6450_gpios_4bit[] = {
1472 #ifdef CONFIG_CPU_S5P6450
1473 {
1474 .chip = {
1475 .base = S5P6450_GPA(0),
1476 .ngpio = S5P6450_GPIO_A_NR,
1477 .label = "GPA",
1478 },
1479 }, {
1480 .chip = {
1481 .base = S5P6450_GPB(0),
1482 .ngpio = S5P6450_GPIO_B_NR,
1483 .label = "GPB",
1484 },
1485 }, {
1486 .chip = {
1487 .base = S5P6450_GPC(0),
1488 .ngpio = S5P6450_GPIO_C_NR,
1489 .label = "GPC",
1490 },
1491 }, {
1492 .chip = {
1493 .base = S5P6450_GPD(0),
1494 .ngpio = S5P6450_GPIO_D_NR,
1495 .label = "GPD",
1496 },
1497 }, {
1498 .base = S5P6450_GPK_BASE,
1499 .chip = {
1500 .base = S5P6450_GPK(0),
1501 .ngpio = S5P6450_GPIO_K_NR,
1502 .label = "GPK",
1503 },
1504 },
1505 #endif
1506 };
1507
1508 static struct samsung_gpio_chip s5p6450_gpios_4bit2[] = {
1509 #ifdef CONFIG_CPU_S5P6450
1510 {
1511 .base = S5P64X0_GPG_BASE + 0x4,
1512 .chip = {
1513 .base = S5P6450_GPG(0),
1514 .ngpio = S5P6450_GPIO_G_NR,
1515 .label = "GPG",
1516 },
1517 }, {
1518 .base = S5P64X0_GPH_BASE + 0x4,
1519 .chip = {
1520 .base = S5P6450_GPH(0),
1521 .ngpio = S5P6450_GPIO_H_NR,
1522 .label = "GPH",
1523 },
1524 },
1525 #endif
1526 };
1527
1528 static struct samsung_gpio_chip s5p6450_gpios_rbank[] = {
1529 #ifdef CONFIG_CPU_S5P6450
1530 {
1531 .base = S5P64X0_GPR_BASE + 0x4,
1532 .config = &s5p64x0_gpio_cfg_rbank,
1533 .chip = {
1534 .base = S5P6450_GPR(0),
1535 .ngpio = S5P6450_GPIO_R_NR,
1536 .label = "GPR",
1537 },
1538 },
1539 #endif
1540 };
1541
1542 static struct samsung_gpio_chip s5p6450_gpios_2bit[] = {
1543 #ifdef CONFIG_CPU_S5P6450
1544 {
1545 .base = S5P64X0_GPF_BASE,
1546 .config = &samsung_gpio_cfgs[6],
1547 .chip = {
1548 .base = S5P6450_GPF(0),
1549 .ngpio = S5P6450_GPIO_F_NR,
1550 .label = "GPF",
1551 },
1552 }, {
1553 .base = S5P64X0_GPI_BASE,
1554 .config = &samsung_gpio_cfgs[4],
1555 .chip = {
1556 .base = S5P6450_GPI(0),
1557 .ngpio = S5P6450_GPIO_I_NR,
1558 .label = "GPI",
1559 },
1560 }, {
1561 .base = S5P64X0_GPJ_BASE,
1562 .config = &samsung_gpio_cfgs[4],
1563 .chip = {
1564 .base = S5P6450_GPJ(0),
1565 .ngpio = S5P6450_GPIO_J_NR,
1566 .label = "GPJ",
1567 },
1568 }, {
1569 .base = S5P64X0_GPN_BASE,
1570 .config = &samsung_gpio_cfgs[5],
1571 .chip = {
1572 .base = S5P6450_GPN(0),
1573 .ngpio = S5P6450_GPIO_N_NR,
1574 .label = "GPN",
1575 },
1576 }, {
1577 .base = S5P64X0_GPP_BASE,
1578 .config = &samsung_gpio_cfgs[6],
1579 .chip = {
1580 .base = S5P6450_GPP(0),
1581 .ngpio = S5P6450_GPIO_P_NR,
1582 .label = "GPP",
1583 },
1584 }, {
1585 .base = S5P6450_GPQ_BASE,
1586 .config = &samsung_gpio_cfgs[5],
1587 .chip = {
1588 .base = S5P6450_GPQ(0),
1589 .ngpio = S5P6450_GPIO_Q_NR,
1590 .label = "GPQ",
1591 },
1592 }, {
1593 .base = S5P6450_GPS_BASE,
1594 .config = &samsung_gpio_cfgs[6],
1595 .chip = {
1596 .base = S5P6450_GPS(0),
1597 .ngpio = S5P6450_GPIO_S_NR,
1598 .label = "GPS",
1599 },
1600 },
1601 #endif
1602 };
1603
1604 /*
1605 * S5PC100 GPIO bank summary:
1606 *
1607 * Bank GPIOs Style INT Type
1608 * A0 8 4Bit GPIO_INT0
1609 * A1 5 4Bit GPIO_INT1
1610 * B 8 4Bit GPIO_INT2
1611 * C 5 4Bit GPIO_INT3
1612 * D 7 4Bit GPIO_INT4
1613 * E0 8 4Bit GPIO_INT5
1614 * E1 6 4Bit GPIO_INT6
1615 * F0 8 4Bit GPIO_INT7
1616 * F1 8 4Bit GPIO_INT8
1617 * F2 8 4Bit GPIO_INT9
1618 * F3 4 4Bit GPIO_INT10
1619 * G0 8 4Bit GPIO_INT11
1620 * G1 3 4Bit GPIO_INT12
1621 * G2 7 4Bit GPIO_INT13
1622 * G3 7 4Bit GPIO_INT14
1623 * H0 8 4Bit WKUP_INT
1624 * H1 8 4Bit WKUP_INT
1625 * H2 8 4Bit WKUP_INT
1626 * H3 8 4Bit WKUP_INT
1627 * I 8 4Bit GPIO_INT15
1628 * J0 8 4Bit GPIO_INT16
1629 * J1 5 4Bit GPIO_INT17
1630 * J2 8 4Bit GPIO_INT18
1631 * J3 8 4Bit GPIO_INT19
1632 * J4 4 4Bit GPIO_INT20
1633 * K0 8 4Bit None
1634 * K1 6 4Bit None
1635 * K2 8 4Bit None
1636 * K3 8 4Bit None
1637 * L0 8 4Bit None
1638 * L1 8 4Bit None
1639 * L2 8 4Bit None
1640 * L3 8 4Bit None
1641 */
1642
1643 static struct samsung_gpio_chip s5pc100_gpios_4bit[] = {
1644 #ifdef CONFIG_CPU_S5PC100
1645 {
1646 .chip = {
1647 .base = S5PC100_GPA0(0),
1648 .ngpio = S5PC100_GPIO_A0_NR,
1649 .label = "GPA0",
1650 },
1651 }, {
1652 .chip = {
1653 .base = S5PC100_GPA1(0),
1654 .ngpio = S5PC100_GPIO_A1_NR,
1655 .label = "GPA1",
1656 },
1657 }, {
1658 .chip = {
1659 .base = S5PC100_GPB(0),
1660 .ngpio = S5PC100_GPIO_B_NR,
1661 .label = "GPB",
1662 },
1663 }, {
1664 .chip = {
1665 .base = S5PC100_GPC(0),
1666 .ngpio = S5PC100_GPIO_C_NR,
1667 .label = "GPC",
1668 },
1669 }, {
1670 .chip = {
1671 .base = S5PC100_GPD(0),
1672 .ngpio = S5PC100_GPIO_D_NR,
1673 .label = "GPD",
1674 },
1675 }, {
1676 .chip = {
1677 .base = S5PC100_GPE0(0),
1678 .ngpio = S5PC100_GPIO_E0_NR,
1679 .label = "GPE0",
1680 },
1681 }, {
1682 .chip = {
1683 .base = S5PC100_GPE1(0),
1684 .ngpio = S5PC100_GPIO_E1_NR,
1685 .label = "GPE1",
1686 },
1687 }, {
1688 .chip = {
1689 .base = S5PC100_GPF0(0),
1690 .ngpio = S5PC100_GPIO_F0_NR,
1691 .label = "GPF0",
1692 },
1693 }, {
1694 .chip = {
1695 .base = S5PC100_GPF1(0),
1696 .ngpio = S5PC100_GPIO_F1_NR,
1697 .label = "GPF1",
1698 },
1699 }, {
1700 .chip = {
1701 .base = S5PC100_GPF2(0),
1702 .ngpio = S5PC100_GPIO_F2_NR,
1703 .label = "GPF2",
1704 },
1705 }, {
1706 .chip = {
1707 .base = S5PC100_GPF3(0),
1708 .ngpio = S5PC100_GPIO_F3_NR,
1709 .label = "GPF3",
1710 },
1711 }, {
1712 .chip = {
1713 .base = S5PC100_GPG0(0),
1714 .ngpio = S5PC100_GPIO_G0_NR,
1715 .label = "GPG0",
1716 },
1717 }, {
1718 .chip = {
1719 .base = S5PC100_GPG1(0),
1720 .ngpio = S5PC100_GPIO_G1_NR,
1721 .label = "GPG1",
1722 },
1723 }, {
1724 .chip = {
1725 .base = S5PC100_GPG2(0),
1726 .ngpio = S5PC100_GPIO_G2_NR,
1727 .label = "GPG2",
1728 },
1729 }, {
1730 .chip = {
1731 .base = S5PC100_GPG3(0),
1732 .ngpio = S5PC100_GPIO_G3_NR,
1733 .label = "GPG3",
1734 },
1735 }, {
1736 .chip = {
1737 .base = S5PC100_GPI(0),
1738 .ngpio = S5PC100_GPIO_I_NR,
1739 .label = "GPI",
1740 },
1741 }, {
1742 .chip = {
1743 .base = S5PC100_GPJ0(0),
1744 .ngpio = S5PC100_GPIO_J0_NR,
1745 .label = "GPJ0",
1746 },
1747 }, {
1748 .chip = {
1749 .base = S5PC100_GPJ1(0),
1750 .ngpio = S5PC100_GPIO_J1_NR,
1751 .label = "GPJ1",
1752 },
1753 }, {
1754 .chip = {
1755 .base = S5PC100_GPJ2(0),
1756 .ngpio = S5PC100_GPIO_J2_NR,
1757 .label = "GPJ2",
1758 },
1759 }, {
1760 .chip = {
1761 .base = S5PC100_GPJ3(0),
1762 .ngpio = S5PC100_GPIO_J3_NR,
1763 .label = "GPJ3",
1764 },
1765 }, {
1766 .chip = {
1767 .base = S5PC100_GPJ4(0),
1768 .ngpio = S5PC100_GPIO_J4_NR,
1769 .label = "GPJ4",
1770 },
1771 }, {
1772 .chip = {
1773 .base = S5PC100_GPK0(0),
1774 .ngpio = S5PC100_GPIO_K0_NR,
1775 .label = "GPK0",
1776 },
1777 }, {
1778 .chip = {
1779 .base = S5PC100_GPK1(0),
1780 .ngpio = S5PC100_GPIO_K1_NR,
1781 .label = "GPK1",
1782 },
1783 }, {
1784 .chip = {
1785 .base = S5PC100_GPK2(0),
1786 .ngpio = S5PC100_GPIO_K2_NR,
1787 .label = "GPK2",
1788 },
1789 }, {
1790 .chip = {
1791 .base = S5PC100_GPK3(0),
1792 .ngpio = S5PC100_GPIO_K3_NR,
1793 .label = "GPK3",
1794 },
1795 }, {
1796 .chip = {
1797 .base = S5PC100_GPL0(0),
1798 .ngpio = S5PC100_GPIO_L0_NR,
1799 .label = "GPL0",
1800 },
1801 }, {
1802 .chip = {
1803 .base = S5PC100_GPL1(0),
1804 .ngpio = S5PC100_GPIO_L1_NR,
1805 .label = "GPL1",
1806 },
1807 }, {
1808 .chip = {
1809 .base = S5PC100_GPL2(0),
1810 .ngpio = S5PC100_GPIO_L2_NR,
1811 .label = "GPL2",
1812 },
1813 }, {
1814 .chip = {
1815 .base = S5PC100_GPL3(0),
1816 .ngpio = S5PC100_GPIO_L3_NR,
1817 .label = "GPL3",
1818 },
1819 }, {
1820 .chip = {
1821 .base = S5PC100_GPL4(0),
1822 .ngpio = S5PC100_GPIO_L4_NR,
1823 .label = "GPL4",
1824 },
1825 }, {
1826 .base = (S5P_VA_GPIO + 0xC00),
1827 .irq_base = IRQ_EINT(0),
1828 .chip = {
1829 .base = S5PC100_GPH0(0),
1830 .ngpio = S5PC100_GPIO_H0_NR,
1831 .label = "GPH0",
1832 .to_irq = samsung_gpiolib_to_irq,
1833 },
1834 }, {
1835 .base = (S5P_VA_GPIO + 0xC20),
1836 .irq_base = IRQ_EINT(8),
1837 .chip = {
1838 .base = S5PC100_GPH1(0),
1839 .ngpio = S5PC100_GPIO_H1_NR,
1840 .label = "GPH1",
1841 .to_irq = samsung_gpiolib_to_irq,
1842 },
1843 }, {
1844 .base = (S5P_VA_GPIO + 0xC40),
1845 .irq_base = IRQ_EINT(16),
1846 .chip = {
1847 .base = S5PC100_GPH2(0),
1848 .ngpio = S5PC100_GPIO_H2_NR,
1849 .label = "GPH2",
1850 .to_irq = samsung_gpiolib_to_irq,
1851 },
1852 }, {
1853 .base = (S5P_VA_GPIO + 0xC60),
1854 .irq_base = IRQ_EINT(24),
1855 .chip = {
1856 .base = S5PC100_GPH3(0),
1857 .ngpio = S5PC100_GPIO_H3_NR,
1858 .label = "GPH3",
1859 .to_irq = samsung_gpiolib_to_irq,
1860 },
1861 },
1862 #endif
1863 };
1864
1865 /*
1866 * Followings are the gpio banks in S5PV210/S5PC110
1867 *
1868 * The 'config' member when left to NULL, is initialized to the default
1869 * structure samsung_gpio_cfgs[3] in the init function below.
1870 *
1871 * The 'base' member is also initialized in the init function below.
1872 * Note: The initialization of 'base' member of samsung_gpio_chip structure
1873 * uses the above macro and depends on the banks being listed in order here.
1874 */
1875
1876 static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
1877 #ifdef CONFIG_CPU_S5PV210
1878 {
1879 .chip = {
1880 .base = S5PV210_GPA0(0),
1881 .ngpio = S5PV210_GPIO_A0_NR,
1882 .label = "GPA0",
1883 },
1884 }, {
1885 .chip = {
1886 .base = S5PV210_GPA1(0),
1887 .ngpio = S5PV210_GPIO_A1_NR,
1888 .label = "GPA1",
1889 },
1890 }, {
1891 .chip = {
1892 .base = S5PV210_GPB(0),
1893 .ngpio = S5PV210_GPIO_B_NR,
1894 .label = "GPB",
1895 },
1896 }, {
1897 .chip = {
1898 .base = S5PV210_GPC0(0),
1899 .ngpio = S5PV210_GPIO_C0_NR,
1900 .label = "GPC0",
1901 },
1902 }, {
1903 .chip = {
1904 .base = S5PV210_GPC1(0),
1905 .ngpio = S5PV210_GPIO_C1_NR,
1906 .label = "GPC1",
1907 },
1908 }, {
1909 .chip = {
1910 .base = S5PV210_GPD0(0),
1911 .ngpio = S5PV210_GPIO_D0_NR,
1912 .label = "GPD0",
1913 },
1914 }, {
1915 .chip = {
1916 .base = S5PV210_GPD1(0),
1917 .ngpio = S5PV210_GPIO_D1_NR,
1918 .label = "GPD1",
1919 },
1920 }, {
1921 .chip = {
1922 .base = S5PV210_GPE0(0),
1923 .ngpio = S5PV210_GPIO_E0_NR,
1924 .label = "GPE0",
1925 },
1926 }, {
1927 .chip = {
1928 .base = S5PV210_GPE1(0),
1929 .ngpio = S5PV210_GPIO_E1_NR,
1930 .label = "GPE1",
1931 },
1932 }, {
1933 .chip = {
1934 .base = S5PV210_GPF0(0),
1935 .ngpio = S5PV210_GPIO_F0_NR,
1936 .label = "GPF0",
1937 },
1938 }, {
1939 .chip = {
1940 .base = S5PV210_GPF1(0),
1941 .ngpio = S5PV210_GPIO_F1_NR,
1942 .label = "GPF1",
1943 },
1944 }, {
1945 .chip = {
1946 .base = S5PV210_GPF2(0),
1947 .ngpio = S5PV210_GPIO_F2_NR,
1948 .label = "GPF2",
1949 },
1950 }, {
1951 .chip = {
1952 .base = S5PV210_GPF3(0),
1953 .ngpio = S5PV210_GPIO_F3_NR,
1954 .label = "GPF3",
1955 },
1956 }, {
1957 .chip = {
1958 .base = S5PV210_GPG0(0),
1959 .ngpio = S5PV210_GPIO_G0_NR,
1960 .label = "GPG0",
1961 },
1962 }, {
1963 .chip = {
1964 .base = S5PV210_GPG1(0),
1965 .ngpio = S5PV210_GPIO_G1_NR,
1966 .label = "GPG1",
1967 },
1968 }, {
1969 .chip = {
1970 .base = S5PV210_GPG2(0),
1971 .ngpio = S5PV210_GPIO_G2_NR,
1972 .label = "GPG2",
1973 },
1974 }, {
1975 .chip = {
1976 .base = S5PV210_GPG3(0),
1977 .ngpio = S5PV210_GPIO_G3_NR,
1978 .label = "GPG3",
1979 },
1980 }, {
1981 .chip = {
1982 .base = S5PV210_GPI(0),
1983 .ngpio = S5PV210_GPIO_I_NR,
1984 .label = "GPI",
1985 },
1986 }, {
1987 .chip = {
1988 .base = S5PV210_GPJ0(0),
1989 .ngpio = S5PV210_GPIO_J0_NR,
1990 .label = "GPJ0",
1991 },
1992 }, {
1993 .chip = {
1994 .base = S5PV210_GPJ1(0),
1995 .ngpio = S5PV210_GPIO_J1_NR,
1996 .label = "GPJ1",
1997 },
1998 }, {
1999 .chip = {
2000 .base = S5PV210_GPJ2(0),
2001 .ngpio = S5PV210_GPIO_J2_NR,
2002 .label = "GPJ2",
2003 },
2004 }, {
2005 .chip = {
2006 .base = S5PV210_GPJ3(0),
2007 .ngpio = S5PV210_GPIO_J3_NR,
2008 .label = "GPJ3",
2009 },
2010 }, {
2011 .chip = {
2012 .base = S5PV210_GPJ4(0),
2013 .ngpio = S5PV210_GPIO_J4_NR,
2014 .label = "GPJ4",
2015 },
2016 }, {
2017 .chip = {
2018 .base = S5PV210_MP01(0),
2019 .ngpio = S5PV210_GPIO_MP01_NR,
2020 .label = "MP01",
2021 },
2022 }, {
2023 .chip = {
2024 .base = S5PV210_MP02(0),
2025 .ngpio = S5PV210_GPIO_MP02_NR,
2026 .label = "MP02",
2027 },
2028 }, {
2029 .chip = {
2030 .base = S5PV210_MP03(0),
2031 .ngpio = S5PV210_GPIO_MP03_NR,
2032 .label = "MP03",
2033 },
2034 }, {
2035 .chip = {
2036 .base = S5PV210_MP04(0),
2037 .ngpio = S5PV210_GPIO_MP04_NR,
2038 .label = "MP04",
2039 },
2040 }, {
2041 .chip = {
2042 .base = S5PV210_MP05(0),
2043 .ngpio = S5PV210_GPIO_MP05_NR,
2044 .label = "MP05",
2045 },
2046 }, {
2047 .base = (S5P_VA_GPIO + 0xC00),
2048 .irq_base = IRQ_EINT(0),
2049 .chip = {
2050 .base = S5PV210_GPH0(0),
2051 .ngpio = S5PV210_GPIO_H0_NR,
2052 .label = "GPH0",
2053 .to_irq = samsung_gpiolib_to_irq,
2054 },
2055 }, {
2056 .base = (S5P_VA_GPIO + 0xC20),
2057 .irq_base = IRQ_EINT(8),
2058 .chip = {
2059 .base = S5PV210_GPH1(0),
2060 .ngpio = S5PV210_GPIO_H1_NR,
2061 .label = "GPH1",
2062 .to_irq = samsung_gpiolib_to_irq,
2063 },
2064 }, {
2065 .base = (S5P_VA_GPIO + 0xC40),
2066 .irq_base = IRQ_EINT(16),
2067 .chip = {
2068 .base = S5PV210_GPH2(0),
2069 .ngpio = S5PV210_GPIO_H2_NR,
2070 .label = "GPH2",
2071 .to_irq = samsung_gpiolib_to_irq,
2072 },
2073 }, {
2074 .base = (S5P_VA_GPIO + 0xC60),
2075 .irq_base = IRQ_EINT(24),
2076 .chip = {
2077 .base = S5PV210_GPH3(0),
2078 .ngpio = S5PV210_GPIO_H3_NR,
2079 .label = "GPH3",
2080 .to_irq = samsung_gpiolib_to_irq,
2081 },
2082 },
2083 #endif
2084 };
2085
2086 /*
2087 * Followings are the gpio banks in EXYNOS4210
2088 *
2089 * The 'config' member when left to NULL, is initialized to the default
2090 * structure samsung_gpio_cfgs[3] in the init function below.
2091 *
2092 * The 'base' member is also initialized in the init function below.
2093 * Note: The initialization of 'base' member of samsung_gpio_chip structure
2094 * uses the above macro and depends on the banks being listed in order here.
2095 */
2096
2097 static struct samsung_gpio_chip exynos4_gpios_1[] = {
2098 #ifdef CONFIG_ARCH_EXYNOS4
2099 {
2100 .chip = {
2101 .base = EXYNOS4_GPA0(0),
2102 .ngpio = EXYNOS4_GPIO_A0_NR,
2103 .label = "GPA0",
2104 },
2105 }, {
2106 .chip = {
2107 .base = EXYNOS4_GPA1(0),
2108 .ngpio = EXYNOS4_GPIO_A1_NR,
2109 .label = "GPA1",
2110 },
2111 }, {
2112 .chip = {
2113 .base = EXYNOS4_GPB(0),
2114 .ngpio = EXYNOS4_GPIO_B_NR,
2115 .label = "GPB",
2116 },
2117 }, {
2118 .chip = {
2119 .base = EXYNOS4_GPC0(0),
2120 .ngpio = EXYNOS4_GPIO_C0_NR,
2121 .label = "GPC0",
2122 },
2123 }, {
2124 .chip = {
2125 .base = EXYNOS4_GPC1(0),
2126 .ngpio = EXYNOS4_GPIO_C1_NR,
2127 .label = "GPC1",
2128 },
2129 }, {
2130 .chip = {
2131 .base = EXYNOS4_GPD0(0),
2132 .ngpio = EXYNOS4_GPIO_D0_NR,
2133 .label = "GPD0",
2134 },
2135 }, {
2136 .chip = {
2137 .base = EXYNOS4_GPD1(0),
2138 .ngpio = EXYNOS4_GPIO_D1_NR,
2139 .label = "GPD1",
2140 },
2141 }, {
2142 .chip = {
2143 .base = EXYNOS4_GPE0(0),
2144 .ngpio = EXYNOS4_GPIO_E0_NR,
2145 .label = "GPE0",
2146 },
2147 }, {
2148 .chip = {
2149 .base = EXYNOS4_GPE1(0),
2150 .ngpio = EXYNOS4_GPIO_E1_NR,
2151 .label = "GPE1",
2152 },
2153 }, {
2154 .chip = {
2155 .base = EXYNOS4_GPE2(0),
2156 .ngpio = EXYNOS4_GPIO_E2_NR,
2157 .label = "GPE2",
2158 },
2159 }, {
2160 .chip = {
2161 .base = EXYNOS4_GPE3(0),
2162 .ngpio = EXYNOS4_GPIO_E3_NR,
2163 .label = "GPE3",
2164 },
2165 }, {
2166 .chip = {
2167 .base = EXYNOS4_GPE4(0),
2168 .ngpio = EXYNOS4_GPIO_E4_NR,
2169 .label = "GPE4",
2170 },
2171 }, {
2172 .chip = {
2173 .base = EXYNOS4_GPF0(0),
2174 .ngpio = EXYNOS4_GPIO_F0_NR,
2175 .label = "GPF0",
2176 },
2177 }, {
2178 .chip = {
2179 .base = EXYNOS4_GPF1(0),
2180 .ngpio = EXYNOS4_GPIO_F1_NR,
2181 .label = "GPF1",
2182 },
2183 }, {
2184 .chip = {
2185 .base = EXYNOS4_GPF2(0),
2186 .ngpio = EXYNOS4_GPIO_F2_NR,
2187 .label = "GPF2",
2188 },
2189 }, {
2190 .chip = {
2191 .base = EXYNOS4_GPF3(0),
2192 .ngpio = EXYNOS4_GPIO_F3_NR,
2193 .label = "GPF3",
2194 },
2195 },
2196 #endif
2197 };
2198
2199 static struct samsung_gpio_chip exynos4_gpios_2[] = {
2200 #ifdef CONFIG_ARCH_EXYNOS4
2201 {
2202 .chip = {
2203 .base = EXYNOS4_GPJ0(0),
2204 .ngpio = EXYNOS4_GPIO_J0_NR,
2205 .label = "GPJ0",
2206 },
2207 }, {
2208 .chip = {
2209 .base = EXYNOS4_GPJ1(0),
2210 .ngpio = EXYNOS4_GPIO_J1_NR,
2211 .label = "GPJ1",
2212 },
2213 }, {
2214 .chip = {
2215 .base = EXYNOS4_GPK0(0),
2216 .ngpio = EXYNOS4_GPIO_K0_NR,
2217 .label = "GPK0",
2218 },
2219 }, {
2220 .chip = {
2221 .base = EXYNOS4_GPK1(0),
2222 .ngpio = EXYNOS4_GPIO_K1_NR,
2223 .label = "GPK1",
2224 },
2225 }, {
2226 .chip = {
2227 .base = EXYNOS4_GPK2(0),
2228 .ngpio = EXYNOS4_GPIO_K2_NR,
2229 .label = "GPK2",
2230 },
2231 }, {
2232 .chip = {
2233 .base = EXYNOS4_GPK3(0),
2234 .ngpio = EXYNOS4_GPIO_K3_NR,
2235 .label = "GPK3",
2236 },
2237 }, {
2238 .chip = {
2239 .base = EXYNOS4_GPL0(0),
2240 .ngpio = EXYNOS4_GPIO_L0_NR,
2241 .label = "GPL0",
2242 },
2243 }, {
2244 .chip = {
2245 .base = EXYNOS4_GPL1(0),
2246 .ngpio = EXYNOS4_GPIO_L1_NR,
2247 .label = "GPL1",
2248 },
2249 }, {
2250 .chip = {
2251 .base = EXYNOS4_GPL2(0),
2252 .ngpio = EXYNOS4_GPIO_L2_NR,
2253 .label = "GPL2",
2254 },
2255 }, {
2256 .config = &samsung_gpio_cfgs[0],
2257 .chip = {
2258 .base = EXYNOS4_GPY0(0),
2259 .ngpio = EXYNOS4_GPIO_Y0_NR,
2260 .label = "GPY0",
2261 },
2262 }, {
2263 .config = &samsung_gpio_cfgs[0],
2264 .chip = {
2265 .base = EXYNOS4_GPY1(0),
2266 .ngpio = EXYNOS4_GPIO_Y1_NR,
2267 .label = "GPY1",
2268 },
2269 }, {
2270 .config = &samsung_gpio_cfgs[0],
2271 .chip = {
2272 .base = EXYNOS4_GPY2(0),
2273 .ngpio = EXYNOS4_GPIO_Y2_NR,
2274 .label = "GPY2",
2275 },
2276 }, {
2277 .config = &samsung_gpio_cfgs[0],
2278 .chip = {
2279 .base = EXYNOS4_GPY3(0),
2280 .ngpio = EXYNOS4_GPIO_Y3_NR,
2281 .label = "GPY3",
2282 },
2283 }, {
2284 .config = &samsung_gpio_cfgs[0],
2285 .chip = {
2286 .base = EXYNOS4_GPY4(0),
2287 .ngpio = EXYNOS4_GPIO_Y4_NR,
2288 .label = "GPY4",
2289 },
2290 }, {
2291 .config = &samsung_gpio_cfgs[0],
2292 .chip = {
2293 .base = EXYNOS4_GPY5(0),
2294 .ngpio = EXYNOS4_GPIO_Y5_NR,
2295 .label = "GPY5",
2296 },
2297 }, {
2298 .config = &samsung_gpio_cfgs[0],
2299 .chip = {
2300 .base = EXYNOS4_GPY6(0),
2301 .ngpio = EXYNOS4_GPIO_Y6_NR,
2302 .label = "GPY6",
2303 },
2304 }, {
2305 .base = (S5P_VA_GPIO2 + 0xC00),
2306 .config = &samsung_gpio_cfgs[3],
2307 .irq_base = IRQ_EINT(0),
2308 .chip = {
2309 .base = EXYNOS4_GPX0(0),
2310 .ngpio = EXYNOS4_GPIO_X0_NR,
2311 .label = "GPX0",
2312 .to_irq = samsung_gpiolib_to_irq,
2313 },
2314 }, {
2315 .base = (S5P_VA_GPIO2 + 0xC20),
2316 .config = &samsung_gpio_cfgs[3],
2317 .irq_base = IRQ_EINT(8),
2318 .chip = {
2319 .base = EXYNOS4_GPX1(0),
2320 .ngpio = EXYNOS4_GPIO_X1_NR,
2321 .label = "GPX1",
2322 .to_irq = samsung_gpiolib_to_irq,
2323 },
2324 }, {
2325 .base = (S5P_VA_GPIO2 + 0xC40),
2326 .config = &samsung_gpio_cfgs[3],
2327 .irq_base = IRQ_EINT(16),
2328 .chip = {
2329 .base = EXYNOS4_GPX2(0),
2330 .ngpio = EXYNOS4_GPIO_X2_NR,
2331 .label = "GPX2",
2332 .to_irq = samsung_gpiolib_to_irq,
2333 },
2334 }, {
2335 .base = (S5P_VA_GPIO2 + 0xC60),
2336 .config = &samsung_gpio_cfgs[3],
2337 .irq_base = IRQ_EINT(24),
2338 .chip = {
2339 .base = EXYNOS4_GPX3(0),
2340 .ngpio = EXYNOS4_GPIO_X3_NR,
2341 .label = "GPX3",
2342 .to_irq = samsung_gpiolib_to_irq,
2343 },
2344 },
2345 #endif
2346 };
2347
2348 static struct samsung_gpio_chip exynos4_gpios_3[] = {
2349 #ifdef CONFIG_ARCH_EXYNOS4
2350 {
2351 .chip = {
2352 .base = EXYNOS4_GPZ(0),
2353 .ngpio = EXYNOS4_GPIO_Z_NR,
2354 .label = "GPZ",
2355 },
2356 },
2357 #endif
2358 };
2359
2360 /* TODO: cleanup soc_is_* */
2361 static __init int samsung_gpiolib_init(void)
2362 {
2363 struct samsung_gpio_chip *chip;
2364 int i, nr_chips;
2365 int group = 0;
2366
2367 samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
2368
2369 if (soc_is_s3c24xx()) {
2370 s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
2371 ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
2372 } else if (soc_is_s3c64xx()) {
2373 samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
2374 ARRAY_SIZE(s3c64xx_gpios_2bit),
2375 S3C64XX_VA_GPIO + 0xE0, 0x20);
2376 samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit,
2377 ARRAY_SIZE(s3c64xx_gpios_4bit),
2378 S3C64XX_VA_GPIO);
2379 samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
2380 ARRAY_SIZE(s3c64xx_gpios_4bit2));
2381 } else if (soc_is_s5p6440()) {
2382 samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit,
2383 ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0);
2384 samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit,
2385 ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO);
2386 samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2,
2387 ARRAY_SIZE(s5p6440_gpios_4bit2));
2388 s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank,
2389 ARRAY_SIZE(s5p6440_gpios_rbank));
2390 } else if (soc_is_s5p6450()) {
2391 samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit,
2392 ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0);
2393 samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit,
2394 ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO);
2395 samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2,
2396 ARRAY_SIZE(s5p6450_gpios_4bit2));
2397 s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank,
2398 ARRAY_SIZE(s5p6450_gpios_rbank));
2399 } else if (soc_is_s5pc100()) {
2400 group = 0;
2401 chip = s5pc100_gpios_4bit;
2402 nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
2403
2404 for (i = 0; i < nr_chips; i++, chip++) {
2405 if (!chip->config) {
2406 chip->config = &samsung_gpio_cfgs[3];
2407 chip->group = group++;
2408 }
2409 }
2410 samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO);
2411 #if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT)
2412 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
2413 #endif
2414 } else if (soc_is_s5pv210()) {
2415 group = 0;
2416 chip = s5pv210_gpios_4bit;
2417 nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
2418
2419 for (i = 0; i < nr_chips; i++, chip++) {
2420 if (!chip->config) {
2421 chip->config = &samsung_gpio_cfgs[3];
2422 chip->group = group++;
2423 }
2424 }
2425 samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO);
2426 #if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT)
2427 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
2428 #endif
2429 } else if (soc_is_exynos4210()) {
2430 group = 0;
2431
2432 /* gpio part1 */
2433 chip = exynos4_gpios_1;
2434 nr_chips = ARRAY_SIZE(exynos4_gpios_1);
2435
2436 for (i = 0; i < nr_chips; i++, chip++) {
2437 if (!chip->config) {
2438 chip->config = &exynos4_gpio_cfg;
2439 chip->group = group++;
2440 }
2441 }
2442 samsung_gpiolib_add_4bit_chips(exynos4_gpios_1, nr_chips, S5P_VA_GPIO1);
2443
2444 /* gpio part2 */
2445 chip = exynos4_gpios_2;
2446 nr_chips = ARRAY_SIZE(exynos4_gpios_2);
2447
2448 for (i = 0; i < nr_chips; i++, chip++) {
2449 if (!chip->config) {
2450 chip->config = &exynos4_gpio_cfg;
2451 chip->group = group++;
2452 }
2453 }
2454 samsung_gpiolib_add_4bit_chips(exynos4_gpios_2, nr_chips, S5P_VA_GPIO2);
2455
2456 /* gpio part3 */
2457 chip = exynos4_gpios_3;
2458 nr_chips = ARRAY_SIZE(exynos4_gpios_3);
2459
2460 for (i = 0; i < nr_chips; i++, chip++) {
2461 if (!chip->config) {
2462 chip->config = &exynos4_gpio_cfg;
2463 chip->group = group++;
2464 }
2465 }
2466 samsung_gpiolib_add_4bit_chips(exynos4_gpios_3, nr_chips, S5P_VA_GPIO3);
2467
2468 #if defined(CONFIG_CPU_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT)
2469 s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS);
2470 s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS);
2471 #endif
2472 }
2473
2474 return 0;
2475 }
2476 core_initcall(samsung_gpiolib_init);
2477
2478 int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
2479 {
2480 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2481 unsigned long flags;
2482 int offset;
2483 int ret;
2484
2485 if (!chip)
2486 return -EINVAL;
2487
2488 offset = pin - chip->chip.base;
2489
2490 samsung_gpio_lock(chip, flags);
2491 ret = samsung_gpio_do_setcfg(chip, offset, config);
2492 samsung_gpio_unlock(chip, flags);
2493
2494 return ret;
2495 }
2496 EXPORT_SYMBOL(s3c_gpio_cfgpin);
2497
2498 int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
2499 unsigned int cfg)
2500 {
2501 int ret;
2502
2503 for (; nr > 0; nr--, start++) {
2504 ret = s3c_gpio_cfgpin(start, cfg);
2505 if (ret != 0)
2506 return ret;
2507 }
2508
2509 return 0;
2510 }
2511 EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
2512
2513 int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
2514 unsigned int cfg, samsung_gpio_pull_t pull)
2515 {
2516 int ret;
2517
2518 for (; nr > 0; nr--, start++) {
2519 s3c_gpio_setpull(start, pull);
2520 ret = s3c_gpio_cfgpin(start, cfg);
2521 if (ret != 0)
2522 return ret;
2523 }
2524
2525 return 0;
2526 }
2527 EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
2528
2529 unsigned s3c_gpio_getcfg(unsigned int pin)
2530 {
2531 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2532 unsigned long flags;
2533 unsigned ret = 0;
2534 int offset;
2535
2536 if (chip) {
2537 offset = pin - chip->chip.base;
2538
2539 samsung_gpio_lock(chip, flags);
2540 ret = samsung_gpio_do_getcfg(chip, offset);
2541 samsung_gpio_unlock(chip, flags);
2542 }
2543
2544 return ret;
2545 }
2546 EXPORT_SYMBOL(s3c_gpio_getcfg);
2547
2548 int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull)
2549 {
2550 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2551 unsigned long flags;
2552 int offset, ret;
2553
2554 if (!chip)
2555 return -EINVAL;
2556
2557 offset = pin - chip->chip.base;
2558
2559 samsung_gpio_lock(chip, flags);
2560 ret = samsung_gpio_do_setpull(chip, offset, pull);
2561 samsung_gpio_unlock(chip, flags);
2562
2563 return ret;
2564 }
2565 EXPORT_SYMBOL(s3c_gpio_setpull);
2566
2567 samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
2568 {
2569 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2570 unsigned long flags;
2571 int offset;
2572 u32 pup = 0;
2573
2574 if (chip) {
2575 offset = pin - chip->chip.base;
2576
2577 samsung_gpio_lock(chip, flags);
2578 pup = samsung_gpio_do_getpull(chip, offset);
2579 samsung_gpio_unlock(chip, flags);
2580 }
2581
2582 return (__force samsung_gpio_pull_t)pup;
2583 }
2584 EXPORT_SYMBOL(s3c_gpio_getpull);
2585
2586 /* gpiolib wrappers until these are totally eliminated */
2587
2588 void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
2589 {
2590 int ret;
2591
2592 WARN_ON(to); /* should be none of these left */
2593
2594 if (!to) {
2595 /* if pull is enabled, try first with up, and if that
2596 * fails, try using down */
2597
2598 ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP);
2599 if (ret)
2600 s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN);
2601 } else {
2602 s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE);
2603 }
2604 }
2605 EXPORT_SYMBOL(s3c2410_gpio_pullup);
2606
2607 void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
2608 {
2609 /* do this via gpiolib until all users removed */
2610
2611 gpio_request(pin, "temporary");
2612 gpio_set_value(pin, to);
2613 gpio_free(pin);
2614 }
2615 EXPORT_SYMBOL(s3c2410_gpio_setpin);
2616
2617 unsigned int s3c2410_gpio_getpin(unsigned int pin)
2618 {
2619 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2620 unsigned long offs = pin - chip->chip.base;
2621
2622 return __raw_readl(chip->base + 0x04) & (1 << offs);
2623 }
2624 EXPORT_SYMBOL(s3c2410_gpio_getpin);
2625
2626 #ifdef CONFIG_S5P_GPIO_DRVSTR
2627 s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
2628 {
2629 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2630 unsigned int off;
2631 void __iomem *reg;
2632 int shift;
2633 u32 drvstr;
2634
2635 if (!chip)
2636 return -EINVAL;
2637
2638 off = pin - chip->chip.base;
2639 shift = off * 2;
2640 reg = chip->base + 0x0C;
2641
2642 drvstr = __raw_readl(reg);
2643 drvstr = drvstr >> shift;
2644 drvstr &= 0x3;
2645
2646 return (__force s5p_gpio_drvstr_t)drvstr;
2647 }
2648 EXPORT_SYMBOL(s5p_gpio_get_drvstr);
2649
2650 int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
2651 {
2652 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2653 unsigned int off;
2654 void __iomem *reg;
2655 int shift;
2656 u32 tmp;
2657
2658 if (!chip)
2659 return -EINVAL;
2660
2661 off = pin - chip->chip.base;
2662 shift = off * 2;
2663 reg = chip->base + 0x0C;
2664
2665 tmp = __raw_readl(reg);
2666 tmp &= ~(0x3 << shift);
2667 tmp |= drvstr << shift;
2668
2669 __raw_writel(tmp, reg);
2670
2671 return 0;
2672 }
2673 EXPORT_SYMBOL(s5p_gpio_set_drvstr);
2674 #endif /* CONFIG_S5P_GPIO_DRVSTR */
2675
2676 #ifdef CONFIG_PLAT_S3C24XX
2677 unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
2678 {
2679 unsigned long flags;
2680 unsigned long misccr;
2681
2682 local_irq_save(flags);
2683 misccr = __raw_readl(S3C24XX_MISCCR);
2684 misccr &= ~clear;
2685 misccr ^= change;
2686 __raw_writel(misccr, S3C24XX_MISCCR);
2687 local_irq_restore(flags);
2688
2689 return misccr;
2690 }
2691 EXPORT_SYMBOL(s3c2410_modify_misccr);
2692 #endif
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree