2 * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
3 * http://www.samsung.com/
5 * Copyright 2008 Openmoko, Inc.
6 * Copyright 2008 Simtec Electronics
7 * Ben Dooks <ben@simtec.co.uk>
8 * http://armlinux.simtec.co.uk/
10 * SAMSUNG - GPIOlib support
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.
17 #include <linux/kernel.h>
18 #include <linux/irq.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/device.h>
26 #include <linux/ioport.h>
28 #include <linux/slab.h>
29 #include <linux/of_address.h>
33 #include <mach/hardware.h>
35 #include <mach/regs-clock.h>
36 #include <mach/regs-gpio.h>
39 #include <plat/gpio-core.h>
40 #include <plat/gpio-cfg.h>
41 #include <plat/gpio-cfg-helpers.h>
42 #include <plat/gpio-fns.h>
46 #define gpio_dbg(x...) do { } while (0)
48 #define gpio_dbg(x...) printk(KERN_DEBUG x)
51 int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip,
52 unsigned int off, samsung_gpio_pull_t pull)
54 void __iomem *reg = chip->base + 0x08;
58 pup = __raw_readl(reg);
61 __raw_writel(pup, reg);
66 samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip,
69 void __iomem *reg = chip->base + 0x08;
71 u32 pup = __raw_readl(reg);
76 return (__force samsung_gpio_pull_t)pup;
79 int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip,
80 unsigned int off, samsung_gpio_pull_t pull)
83 case S3C_GPIO_PULL_NONE:
86 case S3C_GPIO_PULL_UP:
89 case S3C_GPIO_PULL_DOWN:
93 return samsung_gpio_setpull_updown(chip, off, pull);
96 samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip,
99 samsung_gpio_pull_t pull;
101 pull = samsung_gpio_getpull_updown(chip, off);
105 pull = S3C_GPIO_PULL_UP;
109 pull = S3C_GPIO_PULL_NONE;
112 pull = S3C_GPIO_PULL_DOWN;
119 static int s3c24xx_gpio_setpull_1(struct samsung_gpio_chip *chip,
120 unsigned int off, samsung_gpio_pull_t pull,
121 samsung_gpio_pull_t updown)
123 void __iomem *reg = chip->base + 0x08;
124 u32 pup = __raw_readl(reg);
128 else if (pull == S3C_GPIO_PULL_NONE)
133 __raw_writel(pup, reg);
137 static samsung_gpio_pull_t s3c24xx_gpio_getpull_1(struct samsung_gpio_chip *chip,
139 samsung_gpio_pull_t updown)
141 void __iomem *reg = chip->base + 0x08;
142 u32 pup = __raw_readl(reg);
145 return pup ? S3C_GPIO_PULL_NONE : updown;
148 samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip,
151 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP);
154 int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip,
155 unsigned int off, samsung_gpio_pull_t pull)
157 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP);
160 samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip,
163 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN);
166 int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
167 unsigned int off, samsung_gpio_pull_t pull)
169 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
172 static int exynos_gpio_setpull(struct samsung_gpio_chip *chip,
173 unsigned int off, samsung_gpio_pull_t pull)
175 if (pull == S3C_GPIO_PULL_UP)
178 return samsung_gpio_setpull_updown(chip, off, pull);
181 static samsung_gpio_pull_t exynos_gpio_getpull(struct samsung_gpio_chip *chip,
184 samsung_gpio_pull_t pull;
186 pull = samsung_gpio_getpull_updown(chip, off);
189 pull = S3C_GPIO_PULL_UP;
195 * samsung_gpio_setcfg_2bit - Samsung 2bit style GPIO configuration.
196 * @chip: The gpio chip that is being configured.
197 * @off: The offset for the GPIO being configured.
198 * @cfg: The configuration value to set.
200 * This helper deal with the GPIO cases where the control register
201 * has two bits of configuration per gpio, which have the following
205 * 1x = special function
208 static int samsung_gpio_setcfg_2bit(struct samsung_gpio_chip *chip,
209 unsigned int off, unsigned int cfg)
211 void __iomem *reg = chip->base;
212 unsigned int shift = off * 2;
215 if (samsung_gpio_is_cfg_special(cfg)) {
223 con = __raw_readl(reg);
224 con &= ~(0x3 << shift);
226 __raw_writel(con, reg);
232 * samsung_gpio_getcfg_2bit - Samsung 2bit style GPIO configuration read.
233 * @chip: The gpio chip that is being configured.
234 * @off: The offset for the GPIO being configured.
236 * The reverse of samsung_gpio_setcfg_2bit(). Will return a value which
237 * could be directly passed back to samsung_gpio_setcfg_2bit(), from the
238 * S3C_GPIO_SPECIAL() macro.
241 static unsigned int samsung_gpio_getcfg_2bit(struct samsung_gpio_chip *chip,
246 con = __raw_readl(chip->base);
250 /* this conversion works for IN and OUT as well as special mode */
251 return S3C_GPIO_SPECIAL(con);
255 * samsung_gpio_setcfg_4bit - Samsung 4bit single register GPIO config.
256 * @chip: The gpio chip that is being configured.
257 * @off: The offset for the GPIO being configured.
258 * @cfg: The configuration value to set.
260 * This helper deal with the GPIO cases where the control register has 4 bits
261 * of control per GPIO, generally in the form of:
264 * others = Special functions (dependent on bank)
266 * Note, since the code to deal with the case where there are two control
267 * registers instead of one, we do not have a separate set of functions for
271 static int samsung_gpio_setcfg_4bit(struct samsung_gpio_chip *chip,
272 unsigned int off, unsigned int cfg)
274 void __iomem *reg = chip->base;
275 unsigned int shift = (off & 7) * 4;
278 if (off < 8 && chip->chip.ngpio > 8)
281 if (samsung_gpio_is_cfg_special(cfg)) {
286 con = __raw_readl(reg);
287 con &= ~(0xf << shift);
289 __raw_writel(con, reg);
295 * samsung_gpio_getcfg_4bit - Samsung 4bit single register GPIO config read.
296 * @chip: The gpio chip that is being configured.
297 * @off: The offset for the GPIO being configured.
299 * The reverse of samsung_gpio_setcfg_4bit(), turning a gpio configuration
300 * register setting into a value the software can use, such as could be passed
301 * to samsung_gpio_setcfg_4bit().
303 * @sa samsung_gpio_getcfg_2bit
306 static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
309 void __iomem *reg = chip->base;
310 unsigned int shift = (off & 7) * 4;
313 if (off < 8 && chip->chip.ngpio > 8)
316 con = __raw_readl(reg);
320 /* this conversion works for IN and OUT as well as special mode */
321 return S3C_GPIO_SPECIAL(con);
324 #ifdef CONFIG_PLAT_S3C24XX
326 * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A)
327 * @chip: The gpio chip that is being configured.
328 * @off: The offset for the GPIO being configured.
329 * @cfg: The configuration value to set.
331 * This helper deal with the GPIO cases where the control register
332 * has one bit of configuration for the gpio, where setting the bit
333 * means the pin is in special function mode and unset means output.
336 static int s3c24xx_gpio_setcfg_abank(struct samsung_gpio_chip *chip,
337 unsigned int off, unsigned int cfg)
339 void __iomem *reg = chip->base;
340 unsigned int shift = off;
343 if (samsung_gpio_is_cfg_special(cfg)) {
346 /* Map output to 0, and SFN2 to 1 */
354 con = __raw_readl(reg);
355 con &= ~(0x1 << shift);
357 __raw_writel(con, reg);
363 * s3c24xx_gpio_getcfg_abank - S3C24XX style GPIO configuration read (Bank A)
364 * @chip: The gpio chip that is being configured.
365 * @off: The offset for the GPIO being configured.
367 * The reverse of s3c24xx_gpio_setcfg_abank() turning an GPIO into a usable
368 * GPIO configuration value.
370 * @sa samsung_gpio_getcfg_2bit
371 * @sa samsung_gpio_getcfg_4bit
374 static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
379 con = __raw_readl(chip->base);
384 return S3C_GPIO_SFN(con);
388 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
389 static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
390 unsigned int off, unsigned int cfg)
392 void __iomem *reg = chip->base;
403 shift = (off & 7) * 4;
407 shift = ((off + 1) & 7) * 4;
410 shift = ((off + 1) & 7) * 4;
414 if (samsung_gpio_is_cfg_special(cfg)) {
419 con = __raw_readl(reg);
420 con &= ~(0xf << shift);
422 __raw_writel(con, reg);
428 static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
431 for (; nr_chips > 0; nr_chips--, chipcfg++) {
432 if (!chipcfg->set_config)
433 chipcfg->set_config = samsung_gpio_setcfg_4bit;
434 if (!chipcfg->get_config)
435 chipcfg->get_config = samsung_gpio_getcfg_4bit;
436 if (!chipcfg->set_pull)
437 chipcfg->set_pull = samsung_gpio_setpull_updown;
438 if (!chipcfg->get_pull)
439 chipcfg->get_pull = samsung_gpio_getpull_updown;
443 struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
444 .set_config = samsung_gpio_setcfg_2bit,
445 .get_config = samsung_gpio_getcfg_2bit,
448 #ifdef CONFIG_PLAT_S3C24XX
449 static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
450 .set_config = s3c24xx_gpio_setcfg_abank,
451 .get_config = s3c24xx_gpio_getcfg_abank,
455 #if defined(CONFIG_ARCH_EXYNOS4) || defined(CONFIG_ARCH_EXYNOS5)
456 static struct samsung_gpio_cfg exynos_gpio_cfg = {
457 .set_pull = exynos_gpio_setpull,
458 .get_pull = exynos_gpio_getpull,
459 .set_config = samsung_gpio_setcfg_4bit,
460 .get_config = samsung_gpio_getcfg_4bit,
464 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
465 static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
467 .set_config = s5p64x0_gpio_setcfg_rbank,
468 .get_config = samsung_gpio_getcfg_4bit,
469 .set_pull = samsung_gpio_setpull_updown,
470 .get_pull = samsung_gpio_getpull_updown,
474 static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
489 .set_config = samsung_gpio_setcfg_2bit,
490 .get_config = samsung_gpio_getcfg_2bit,
494 .set_config = samsung_gpio_setcfg_2bit,
495 .get_config = samsung_gpio_getcfg_2bit,
499 .set_config = samsung_gpio_setcfg_2bit,
500 .get_config = samsung_gpio_getcfg_2bit,
503 .set_config = samsung_gpio_setcfg_2bit,
504 .get_config = samsung_gpio_getcfg_2bit,
507 .set_pull = exynos_gpio_setpull,
508 .get_pull = exynos_gpio_getpull,
512 .set_pull = exynos_gpio_setpull,
513 .get_pull = exynos_gpio_getpull,
518 * Default routines for controlling GPIO, based on the original S3C24XX
519 * GPIO functions which deal with the case where each gpio bank of the
520 * chip is as following:
522 * base + 0x00: Control register, 2 bits per gpio
523 * gpio n: 2 bits starting at (2*n)
524 * 00 = input, 01 = output, others mean special-function
525 * base + 0x04: Data register, 1 bit per gpio
529 static int samsung_gpiolib_2bit_input(struct gpio_chip *chip, unsigned offset)
531 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
532 void __iomem *base = ourchip->base;
536 samsung_gpio_lock(ourchip, flags);
538 con = __raw_readl(base + 0x00);
539 con &= ~(3 << (offset * 2));
541 __raw_writel(con, base + 0x00);
543 samsung_gpio_unlock(ourchip, flags);
547 static int samsung_gpiolib_2bit_output(struct gpio_chip *chip,
548 unsigned offset, int value)
550 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
551 void __iomem *base = ourchip->base;
556 samsung_gpio_lock(ourchip, flags);
558 dat = __raw_readl(base + 0x04);
559 dat &= ~(1 << offset);
562 __raw_writel(dat, base + 0x04);
564 con = __raw_readl(base + 0x00);
565 con &= ~(3 << (offset * 2));
566 con |= 1 << (offset * 2);
568 __raw_writel(con, base + 0x00);
569 __raw_writel(dat, base + 0x04);
571 samsung_gpio_unlock(ourchip, flags);
576 * The samsung_gpiolib_4bit routines are to control the gpio banks where
577 * the gpio configuration register (GPxCON) has 4 bits per GPIO, as the
580 * base + 0x00: Control register, 4 bits per gpio
581 * gpio n: 4 bits starting at (4*n)
582 * 0000 = input, 0001 = output, others mean special-function
583 * base + 0x04: Data register, 1 bit per gpio
586 * Note, since the data register is one bit per gpio and is at base + 0x4
587 * we can use samsung_gpiolib_get and samsung_gpiolib_set to change the
588 * state of the output.
591 static int samsung_gpiolib_4bit_input(struct gpio_chip *chip,
594 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
595 void __iomem *base = ourchip->base;
598 con = __raw_readl(base + GPIOCON_OFF);
599 con &= ~(0xf << con_4bit_shift(offset));
600 __raw_writel(con, base + GPIOCON_OFF);
602 gpio_dbg("%s: %p: CON now %08lx\n", __func__, base, con);
607 static int samsung_gpiolib_4bit_output(struct gpio_chip *chip,
608 unsigned int offset, int value)
610 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
611 void __iomem *base = ourchip->base;
615 con = __raw_readl(base + GPIOCON_OFF);
616 con &= ~(0xf << con_4bit_shift(offset));
617 con |= 0x1 << con_4bit_shift(offset);
619 dat = __raw_readl(base + GPIODAT_OFF);
624 dat &= ~(1 << offset);
626 __raw_writel(dat, base + GPIODAT_OFF);
627 __raw_writel(con, base + GPIOCON_OFF);
628 __raw_writel(dat, base + GPIODAT_OFF);
630 gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
636 * The next set of routines are for the case where the GPIO configuration
637 * registers are 4 bits per GPIO but there is more than one register (the
638 * bank has more than 8 GPIOs.
640 * This case is the similar to the 4 bit case, but the registers are as
643 * base + 0x00: Control register, 4 bits per gpio (lower 8 GPIOs)
644 * gpio n: 4 bits starting at (4*n)
645 * 0000 = input, 0001 = output, others mean special-function
646 * base + 0x04: Control register, 4 bits per gpio (up to 8 additions GPIOs)
647 * gpio n: 4 bits starting at (4*n)
648 * 0000 = input, 0001 = output, others mean special-function
649 * base + 0x08: Data register, 1 bit per gpio
652 * To allow us to use the samsung_gpiolib_get and samsung_gpiolib_set
653 * routines we store the 'base + 0x4' address so that these routines see
654 * the data register at ourchip->base + 0x04.
657 static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip,
660 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
661 void __iomem *base = ourchip->base;
662 void __iomem *regcon = base;
670 con = __raw_readl(regcon);
671 con &= ~(0xf << con_4bit_shift(offset));
672 __raw_writel(con, regcon);
674 gpio_dbg("%s: %p: CON %08lx\n", __func__, base, con);
679 static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
680 unsigned int offset, int value)
682 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
683 void __iomem *base = ourchip->base;
684 void __iomem *regcon = base;
687 unsigned con_offset = offset;
694 con = __raw_readl(regcon);
695 con &= ~(0xf << con_4bit_shift(con_offset));
696 con |= 0x1 << con_4bit_shift(con_offset);
698 dat = __raw_readl(base + GPIODAT_OFF);
703 dat &= ~(1 << offset);
705 __raw_writel(dat, base + GPIODAT_OFF);
706 __raw_writel(con, regcon);
707 __raw_writel(dat, base + GPIODAT_OFF);
709 gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
714 #ifdef CONFIG_PLAT_S3C24XX
715 /* The next set of routines are for the case of s3c24xx bank a */
717 static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
722 static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
723 unsigned offset, int value)
725 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
726 void __iomem *base = ourchip->base;
731 local_irq_save(flags);
733 con = __raw_readl(base + 0x00);
734 dat = __raw_readl(base + 0x04);
736 dat &= ~(1 << offset);
740 __raw_writel(dat, base + 0x04);
742 con &= ~(1 << offset);
744 __raw_writel(con, base + 0x00);
745 __raw_writel(dat, base + 0x04);
747 local_irq_restore(flags);
752 /* The next set of routines are for the case of s5p64x0 bank r */
754 static int s5p64x0_gpiolib_rbank_input(struct gpio_chip *chip,
757 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
758 void __iomem *base = ourchip->base;
759 void __iomem *regcon = base;
779 samsung_gpio_lock(ourchip, flags);
781 con = __raw_readl(regcon);
782 con &= ~(0xf << con_4bit_shift(offset));
783 __raw_writel(con, regcon);
785 samsung_gpio_unlock(ourchip, flags);
790 static int s5p64x0_gpiolib_rbank_output(struct gpio_chip *chip,
791 unsigned int offset, int value)
793 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
794 void __iomem *base = ourchip->base;
795 void __iomem *regcon = base;
799 unsigned con_offset = offset;
801 switch (con_offset) {
817 samsung_gpio_lock(ourchip, flags);
819 con = __raw_readl(regcon);
820 con &= ~(0xf << con_4bit_shift(con_offset));
821 con |= 0x1 << con_4bit_shift(con_offset);
823 dat = __raw_readl(base + GPIODAT_OFF);
827 dat &= ~(1 << offset);
829 __raw_writel(con, regcon);
830 __raw_writel(dat, base + GPIODAT_OFF);
832 samsung_gpio_unlock(ourchip, flags);
837 static void samsung_gpiolib_set(struct gpio_chip *chip,
838 unsigned offset, int value)
840 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
841 void __iomem *base = ourchip->base;
845 samsung_gpio_lock(ourchip, flags);
847 dat = __raw_readl(base + 0x04);
848 dat &= ~(1 << offset);
851 __raw_writel(dat, base + 0x04);
853 samsung_gpio_unlock(ourchip, flags);
856 static int samsung_gpiolib_get(struct gpio_chip *chip, unsigned offset)
858 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
861 val = __raw_readl(ourchip->base + 0x04);
869 * CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios
870 * for use with the configuration calls, and other parts of the s3c gpiolib
873 * Not all s3c support code will need this, as some configurations of cpu
874 * may only support one or two different configuration options and have an
875 * easy gpio to samsung_gpio_chip mapping function. If this is the case, then
876 * the machine support file should provide its own samsung_gpiolib_getchip()
877 * and any other necessary functions.
880 #ifdef CONFIG_S3C_GPIO_TRACK
881 struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END];
883 static __init void s3c_gpiolib_track(struct samsung_gpio_chip *chip)
888 gpn = chip->chip.base;
889 for (i = 0; i < chip->chip.ngpio; i++, gpn++) {
890 BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios));
891 s3c_gpios[gpn] = chip;
894 #endif /* CONFIG_S3C_GPIO_TRACK */
897 * samsung_gpiolib_add() - add the Samsung gpio_chip.
898 * @chip: The chip to register
900 * This is a wrapper to gpiochip_add() that takes our specific gpio chip
901 * information and makes the necessary alterations for the platform and
902 * notes the information for use with the configuration systems and any
903 * other parts of the system.
906 static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
908 struct gpio_chip *gc = &chip->chip;
915 spin_lock_init(&chip->lock);
917 if (!gc->direction_input)
918 gc->direction_input = samsung_gpiolib_2bit_input;
919 if (!gc->direction_output)
920 gc->direction_output = samsung_gpiolib_2bit_output;
922 gc->set = samsung_gpiolib_set;
924 gc->get = samsung_gpiolib_get;
927 if (chip->pm != NULL) {
928 if (!chip->pm->save || !chip->pm->resume)
929 printk(KERN_ERR "gpio: %s has missing PM functions\n",
932 printk(KERN_ERR "gpio: %s has no PM function\n", gc->label);
935 /* gpiochip_add() prints own failure message on error. */
936 ret = gpiochip_add(gc);
938 s3c_gpiolib_track(chip);
941 static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
942 int nr_chips, void __iomem *base)
945 struct gpio_chip *gc = &chip->chip;
947 for (i = 0 ; i < nr_chips; i++, chip++) {
948 /* skip banks not present on SoC */
949 if (chip->chip.base >= S3C_GPIO_END)
953 chip->config = &s3c24xx_gpiocfg_default;
955 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
956 if ((base != NULL) && (chip->base == NULL))
957 chip->base = base + ((i) * 0x10);
959 if (!gc->direction_input)
960 gc->direction_input = samsung_gpiolib_2bit_input;
961 if (!gc->direction_output)
962 gc->direction_output = samsung_gpiolib_2bit_output;
964 samsung_gpiolib_add(chip);
968 static void __init samsung_gpiolib_add_2bit_chips(struct samsung_gpio_chip *chip,
969 int nr_chips, void __iomem *base,
974 for (i = 0 ; i < nr_chips; i++, chip++) {
975 chip->chip.direction_input = samsung_gpiolib_2bit_input;
976 chip->chip.direction_output = samsung_gpiolib_2bit_output;
979 chip->config = &samsung_gpio_cfgs[7];
981 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
982 if ((base != NULL) && (chip->base == NULL))
983 chip->base = base + ((i) * offset);
985 samsung_gpiolib_add(chip);
990 * samsung_gpiolib_add_4bit_chips - 4bit single register GPIO config.
991 * @chip: The gpio chip that is being configured.
992 * @nr_chips: The no of chips (gpio ports) for the GPIO being configured.
994 * This helper deal with the GPIO cases where the control register has 4 bits
995 * of control per GPIO, generally in the form of:
998 * others = Special functions (dependent on bank)
1000 * Note, since the code to deal with the case where there are two control
1001 * registers instead of one, we do not have a separate set of function
1002 * (samsung_gpiolib_add_4bit2_chips)for each case.
1005 static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip,
1006 int nr_chips, void __iomem *base)
1010 for (i = 0 ; i < nr_chips; i++, chip++) {
1011 chip->chip.direction_input = samsung_gpiolib_4bit_input;
1012 chip->chip.direction_output = samsung_gpiolib_4bit_output;
1015 chip->config = &samsung_gpio_cfgs[2];
1017 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1018 if ((base != NULL) && (chip->base == NULL))
1019 chip->base = base + ((i) * 0x20);
1021 samsung_gpiolib_add(chip);
1025 static void __init samsung_gpiolib_add_4bit2_chips(struct samsung_gpio_chip *chip,
1028 for (; nr_chips > 0; nr_chips--, chip++) {
1029 chip->chip.direction_input = samsung_gpiolib_4bit2_input;
1030 chip->chip.direction_output = samsung_gpiolib_4bit2_output;
1033 chip->config = &samsung_gpio_cfgs[2];
1035 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1037 samsung_gpiolib_add(chip);
1041 static void __init s5p64x0_gpiolib_add_rbank(struct samsung_gpio_chip *chip,
1044 for (; nr_chips > 0; nr_chips--, chip++) {
1045 chip->chip.direction_input = s5p64x0_gpiolib_rbank_input;
1046 chip->chip.direction_output = s5p64x0_gpiolib_rbank_output;
1049 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1051 samsung_gpiolib_add(chip);
1055 int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
1057 struct samsung_gpio_chip *samsung_chip = container_of(chip, struct samsung_gpio_chip, chip);
1059 return samsung_chip->irq_base + offset;
1062 #ifdef CONFIG_PLAT_S3C24XX
1063 static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
1066 return IRQ_EINT0 + offset;
1069 return IRQ_EINT4 + offset - 4;
1075 #ifdef CONFIG_PLAT_S3C64XX
1076 static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin)
1078 return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
1081 static int s3c64xx_gpiolib_lbank_to_irq(struct gpio_chip *chip, unsigned pin)
1083 return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO;
1087 struct samsung_gpio_chip s3c24xx_gpios[] = {
1088 #ifdef CONFIG_PLAT_S3C24XX
1090 .config = &s3c24xx_gpiocfg_banka,
1092 .base = S3C2410_GPA(0),
1093 .owner = THIS_MODULE,
1096 .direction_input = s3c24xx_gpiolib_banka_input,
1097 .direction_output = s3c24xx_gpiolib_banka_output,
1101 .base = S3C2410_GPB(0),
1102 .owner = THIS_MODULE,
1108 .base = S3C2410_GPC(0),
1109 .owner = THIS_MODULE,
1115 .base = S3C2410_GPD(0),
1116 .owner = THIS_MODULE,
1122 .base = S3C2410_GPE(0),
1124 .owner = THIS_MODULE,
1129 .base = S3C2410_GPF(0),
1130 .owner = THIS_MODULE,
1133 .to_irq = s3c24xx_gpiolib_fbank_to_irq,
1136 .irq_base = IRQ_EINT8,
1138 .base = S3C2410_GPG(0),
1139 .owner = THIS_MODULE,
1142 .to_irq = samsung_gpiolib_to_irq,
1146 .base = S3C2410_GPH(0),
1147 .owner = THIS_MODULE,
1152 /* GPIOS for the S3C2443 and later devices. */
1154 .base = S3C2440_GPJCON,
1156 .base = S3C2410_GPJ(0),
1157 .owner = THIS_MODULE,
1162 .base = S3C2443_GPKCON,
1164 .base = S3C2410_GPK(0),
1165 .owner = THIS_MODULE,
1170 .base = S3C2443_GPLCON,
1172 .base = S3C2410_GPL(0),
1173 .owner = THIS_MODULE,
1178 .base = S3C2443_GPMCON,
1180 .base = S3C2410_GPM(0),
1181 .owner = THIS_MODULE,
1190 * GPIO bank summary:
1192 * Bank GPIOs Style SlpCon ExtInt Group
1198 * F 16 2Bit Yes 4 [1]
1200 * H 10 4Bit[2] Yes 6
1201 * I 16 2Bit Yes None
1202 * J 12 2Bit Yes None
1203 * K 16 4Bit[2] No None
1204 * L 15 4Bit[2] No None
1205 * M 6 4Bit No IRQ_EINT
1206 * N 16 2Bit No IRQ_EINT
1211 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1212 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1215 static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
1216 #ifdef CONFIG_PLAT_S3C64XX
1219 .base = S3C64XX_GPA(0),
1220 .ngpio = S3C64XX_GPIO_A_NR,
1225 .base = S3C64XX_GPB(0),
1226 .ngpio = S3C64XX_GPIO_B_NR,
1231 .base = S3C64XX_GPC(0),
1232 .ngpio = S3C64XX_GPIO_C_NR,
1237 .base = S3C64XX_GPD(0),
1238 .ngpio = S3C64XX_GPIO_D_NR,
1242 .config = &samsung_gpio_cfgs[0],
1244 .base = S3C64XX_GPE(0),
1245 .ngpio = S3C64XX_GPIO_E_NR,
1249 .base = S3C64XX_GPG_BASE,
1251 .base = S3C64XX_GPG(0),
1252 .ngpio = S3C64XX_GPIO_G_NR,
1256 .base = S3C64XX_GPM_BASE,
1257 .config = &samsung_gpio_cfgs[1],
1259 .base = S3C64XX_GPM(0),
1260 .ngpio = S3C64XX_GPIO_M_NR,
1262 .to_irq = s3c64xx_gpiolib_mbank_to_irq,
1268 static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
1269 #ifdef CONFIG_PLAT_S3C64XX
1271 .base = S3C64XX_GPH_BASE + 0x4,
1273 .base = S3C64XX_GPH(0),
1274 .ngpio = S3C64XX_GPIO_H_NR,
1278 .base = S3C64XX_GPK_BASE + 0x4,
1279 .config = &samsung_gpio_cfgs[0],
1281 .base = S3C64XX_GPK(0),
1282 .ngpio = S3C64XX_GPIO_K_NR,
1286 .base = S3C64XX_GPL_BASE + 0x4,
1287 .config = &samsung_gpio_cfgs[1],
1289 .base = S3C64XX_GPL(0),
1290 .ngpio = S3C64XX_GPIO_L_NR,
1292 .to_irq = s3c64xx_gpiolib_lbank_to_irq,
1298 static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = {
1299 #ifdef CONFIG_PLAT_S3C64XX
1301 .base = S3C64XX_GPF_BASE,
1302 .config = &samsung_gpio_cfgs[6],
1304 .base = S3C64XX_GPF(0),
1305 .ngpio = S3C64XX_GPIO_F_NR,
1309 .config = &samsung_gpio_cfgs[7],
1311 .base = S3C64XX_GPI(0),
1312 .ngpio = S3C64XX_GPIO_I_NR,
1316 .config = &samsung_gpio_cfgs[7],
1318 .base = S3C64XX_GPJ(0),
1319 .ngpio = S3C64XX_GPIO_J_NR,
1323 .config = &samsung_gpio_cfgs[6],
1325 .base = S3C64XX_GPO(0),
1326 .ngpio = S3C64XX_GPIO_O_NR,
1330 .config = &samsung_gpio_cfgs[6],
1332 .base = S3C64XX_GPP(0),
1333 .ngpio = S3C64XX_GPIO_P_NR,
1337 .config = &samsung_gpio_cfgs[6],
1339 .base = S3C64XX_GPQ(0),
1340 .ngpio = S3C64XX_GPIO_Q_NR,
1344 .base = S3C64XX_GPN_BASE,
1345 .irq_base = IRQ_EINT(0),
1346 .config = &samsung_gpio_cfgs[5],
1348 .base = S3C64XX_GPN(0),
1349 .ngpio = S3C64XX_GPIO_N_NR,
1351 .to_irq = samsung_gpiolib_to_irq,
1358 * S5P6440 GPIO bank summary:
1360 * Bank GPIOs Style SlpCon ExtInt Group
1364 * F 2 2Bit Yes 4 [1]
1366 * H 10 4Bit[2] Yes 6
1367 * I 16 2Bit Yes None
1368 * J 12 2Bit Yes None
1369 * N 16 2Bit No IRQ_EINT
1371 * R 15 4Bit[2] Yes 8
1374 static struct samsung_gpio_chip s5p6440_gpios_4bit[] = {
1375 #ifdef CONFIG_CPU_S5P6440
1378 .base = S5P6440_GPA(0),
1379 .ngpio = S5P6440_GPIO_A_NR,
1384 .base = S5P6440_GPB(0),
1385 .ngpio = S5P6440_GPIO_B_NR,
1390 .base = S5P6440_GPC(0),
1391 .ngpio = S5P6440_GPIO_C_NR,
1395 .base = S5P64X0_GPG_BASE,
1397 .base = S5P6440_GPG(0),
1398 .ngpio = S5P6440_GPIO_G_NR,
1405 static struct samsung_gpio_chip s5p6440_gpios_4bit2[] = {
1406 #ifdef CONFIG_CPU_S5P6440
1408 .base = S5P64X0_GPH_BASE + 0x4,
1410 .base = S5P6440_GPH(0),
1411 .ngpio = S5P6440_GPIO_H_NR,
1418 static struct samsung_gpio_chip s5p6440_gpios_rbank[] = {
1419 #ifdef CONFIG_CPU_S5P6440
1421 .base = S5P64X0_GPR_BASE + 0x4,
1422 .config = &s5p64x0_gpio_cfg_rbank,
1424 .base = S5P6440_GPR(0),
1425 .ngpio = S5P6440_GPIO_R_NR,
1432 static struct samsung_gpio_chip s5p6440_gpios_2bit[] = {
1433 #ifdef CONFIG_CPU_S5P6440
1435 .base = S5P64X0_GPF_BASE,
1436 .config = &samsung_gpio_cfgs[6],
1438 .base = S5P6440_GPF(0),
1439 .ngpio = S5P6440_GPIO_F_NR,
1443 .base = S5P64X0_GPI_BASE,
1444 .config = &samsung_gpio_cfgs[4],
1446 .base = S5P6440_GPI(0),
1447 .ngpio = S5P6440_GPIO_I_NR,
1451 .base = S5P64X0_GPJ_BASE,
1452 .config = &samsung_gpio_cfgs[4],
1454 .base = S5P6440_GPJ(0),
1455 .ngpio = S5P6440_GPIO_J_NR,
1459 .base = S5P64X0_GPN_BASE,
1460 .config = &samsung_gpio_cfgs[5],
1462 .base = S5P6440_GPN(0),
1463 .ngpio = S5P6440_GPIO_N_NR,
1467 .base = S5P64X0_GPP_BASE,
1468 .config = &samsung_gpio_cfgs[6],
1470 .base = S5P6440_GPP(0),
1471 .ngpio = S5P6440_GPIO_P_NR,
1479 * S5P6450 GPIO bank summary:
1481 * Bank GPIOs Style SlpCon ExtInt Group
1487 * G 14 4Bit[2] Yes 5
1488 * H 10 4Bit[2] Yes 6
1489 * I 16 2Bit Yes None
1490 * J 12 2Bit Yes None
1492 * N 16 2Bit No IRQ_EINT
1494 * Q 14 2Bit Yes None
1495 * R 15 4Bit[2] Yes None
1498 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1499 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1502 static struct samsung_gpio_chip s5p6450_gpios_4bit[] = {
1503 #ifdef CONFIG_CPU_S5P6450
1506 .base = S5P6450_GPA(0),
1507 .ngpio = S5P6450_GPIO_A_NR,
1512 .base = S5P6450_GPB(0),
1513 .ngpio = S5P6450_GPIO_B_NR,
1518 .base = S5P6450_GPC(0),
1519 .ngpio = S5P6450_GPIO_C_NR,
1524 .base = S5P6450_GPD(0),
1525 .ngpio = S5P6450_GPIO_D_NR,
1529 .base = S5P6450_GPK_BASE,
1531 .base = S5P6450_GPK(0),
1532 .ngpio = S5P6450_GPIO_K_NR,
1539 static struct samsung_gpio_chip s5p6450_gpios_4bit2[] = {
1540 #ifdef CONFIG_CPU_S5P6450
1542 .base = S5P64X0_GPG_BASE + 0x4,
1544 .base = S5P6450_GPG(0),
1545 .ngpio = S5P6450_GPIO_G_NR,
1549 .base = S5P64X0_GPH_BASE + 0x4,
1551 .base = S5P6450_GPH(0),
1552 .ngpio = S5P6450_GPIO_H_NR,
1559 static struct samsung_gpio_chip s5p6450_gpios_rbank[] = {
1560 #ifdef CONFIG_CPU_S5P6450
1562 .base = S5P64X0_GPR_BASE + 0x4,
1563 .config = &s5p64x0_gpio_cfg_rbank,
1565 .base = S5P6450_GPR(0),
1566 .ngpio = S5P6450_GPIO_R_NR,
1573 static struct samsung_gpio_chip s5p6450_gpios_2bit[] = {
1574 #ifdef CONFIG_CPU_S5P6450
1576 .base = S5P64X0_GPF_BASE,
1577 .config = &samsung_gpio_cfgs[6],
1579 .base = S5P6450_GPF(0),
1580 .ngpio = S5P6450_GPIO_F_NR,
1584 .base = S5P64X0_GPI_BASE,
1585 .config = &samsung_gpio_cfgs[4],
1587 .base = S5P6450_GPI(0),
1588 .ngpio = S5P6450_GPIO_I_NR,
1592 .base = S5P64X0_GPJ_BASE,
1593 .config = &samsung_gpio_cfgs[4],
1595 .base = S5P6450_GPJ(0),
1596 .ngpio = S5P6450_GPIO_J_NR,
1600 .base = S5P64X0_GPN_BASE,
1601 .config = &samsung_gpio_cfgs[5],
1603 .base = S5P6450_GPN(0),
1604 .ngpio = S5P6450_GPIO_N_NR,
1608 .base = S5P64X0_GPP_BASE,
1609 .config = &samsung_gpio_cfgs[6],
1611 .base = S5P6450_GPP(0),
1612 .ngpio = S5P6450_GPIO_P_NR,
1616 .base = S5P6450_GPQ_BASE,
1617 .config = &samsung_gpio_cfgs[5],
1619 .base = S5P6450_GPQ(0),
1620 .ngpio = S5P6450_GPIO_Q_NR,
1624 .base = S5P6450_GPS_BASE,
1625 .config = &samsung_gpio_cfgs[6],
1627 .base = S5P6450_GPS(0),
1628 .ngpio = S5P6450_GPIO_S_NR,
1636 * S5PC100 GPIO bank summary:
1638 * Bank GPIOs Style INT Type
1639 * A0 8 4Bit GPIO_INT0
1640 * A1 5 4Bit GPIO_INT1
1641 * B 8 4Bit GPIO_INT2
1642 * C 5 4Bit GPIO_INT3
1643 * D 7 4Bit GPIO_INT4
1644 * E0 8 4Bit GPIO_INT5
1645 * E1 6 4Bit GPIO_INT6
1646 * F0 8 4Bit GPIO_INT7
1647 * F1 8 4Bit GPIO_INT8
1648 * F2 8 4Bit GPIO_INT9
1649 * F3 4 4Bit GPIO_INT10
1650 * G0 8 4Bit GPIO_INT11
1651 * G1 3 4Bit GPIO_INT12
1652 * G2 7 4Bit GPIO_INT13
1653 * G3 7 4Bit GPIO_INT14
1654 * H0 8 4Bit WKUP_INT
1655 * H1 8 4Bit WKUP_INT
1656 * H2 8 4Bit WKUP_INT
1657 * H3 8 4Bit WKUP_INT
1658 * I 8 4Bit GPIO_INT15
1659 * J0 8 4Bit GPIO_INT16
1660 * J1 5 4Bit GPIO_INT17
1661 * J2 8 4Bit GPIO_INT18
1662 * J3 8 4Bit GPIO_INT19
1663 * J4 4 4Bit GPIO_INT20
1674 static struct samsung_gpio_chip s5pc100_gpios_4bit[] = {
1675 #ifdef CONFIG_CPU_S5PC100
1678 .base = S5PC100_GPA0(0),
1679 .ngpio = S5PC100_GPIO_A0_NR,
1684 .base = S5PC100_GPA1(0),
1685 .ngpio = S5PC100_GPIO_A1_NR,
1690 .base = S5PC100_GPB(0),
1691 .ngpio = S5PC100_GPIO_B_NR,
1696 .base = S5PC100_GPC(0),
1697 .ngpio = S5PC100_GPIO_C_NR,
1702 .base = S5PC100_GPD(0),
1703 .ngpio = S5PC100_GPIO_D_NR,
1708 .base = S5PC100_GPE0(0),
1709 .ngpio = S5PC100_GPIO_E0_NR,
1714 .base = S5PC100_GPE1(0),
1715 .ngpio = S5PC100_GPIO_E1_NR,
1720 .base = S5PC100_GPF0(0),
1721 .ngpio = S5PC100_GPIO_F0_NR,
1726 .base = S5PC100_GPF1(0),
1727 .ngpio = S5PC100_GPIO_F1_NR,
1732 .base = S5PC100_GPF2(0),
1733 .ngpio = S5PC100_GPIO_F2_NR,
1738 .base = S5PC100_GPF3(0),
1739 .ngpio = S5PC100_GPIO_F3_NR,
1744 .base = S5PC100_GPG0(0),
1745 .ngpio = S5PC100_GPIO_G0_NR,
1750 .base = S5PC100_GPG1(0),
1751 .ngpio = S5PC100_GPIO_G1_NR,
1756 .base = S5PC100_GPG2(0),
1757 .ngpio = S5PC100_GPIO_G2_NR,
1762 .base = S5PC100_GPG3(0),
1763 .ngpio = S5PC100_GPIO_G3_NR,
1768 .base = S5PC100_GPI(0),
1769 .ngpio = S5PC100_GPIO_I_NR,
1774 .base = S5PC100_GPJ0(0),
1775 .ngpio = S5PC100_GPIO_J0_NR,
1780 .base = S5PC100_GPJ1(0),
1781 .ngpio = S5PC100_GPIO_J1_NR,
1786 .base = S5PC100_GPJ2(0),
1787 .ngpio = S5PC100_GPIO_J2_NR,
1792 .base = S5PC100_GPJ3(0),
1793 .ngpio = S5PC100_GPIO_J3_NR,
1798 .base = S5PC100_GPJ4(0),
1799 .ngpio = S5PC100_GPIO_J4_NR,
1804 .base = S5PC100_GPK0(0),
1805 .ngpio = S5PC100_GPIO_K0_NR,
1810 .base = S5PC100_GPK1(0),
1811 .ngpio = S5PC100_GPIO_K1_NR,
1816 .base = S5PC100_GPK2(0),
1817 .ngpio = S5PC100_GPIO_K2_NR,
1822 .base = S5PC100_GPK3(0),
1823 .ngpio = S5PC100_GPIO_K3_NR,
1828 .base = S5PC100_GPL0(0),
1829 .ngpio = S5PC100_GPIO_L0_NR,
1834 .base = S5PC100_GPL1(0),
1835 .ngpio = S5PC100_GPIO_L1_NR,
1840 .base = S5PC100_GPL2(0),
1841 .ngpio = S5PC100_GPIO_L2_NR,
1846 .base = S5PC100_GPL3(0),
1847 .ngpio = S5PC100_GPIO_L3_NR,
1852 .base = S5PC100_GPL4(0),
1853 .ngpio = S5PC100_GPIO_L4_NR,
1857 .base = (S5P_VA_GPIO + 0xC00),
1858 .irq_base = IRQ_EINT(0),
1860 .base = S5PC100_GPH0(0),
1861 .ngpio = S5PC100_GPIO_H0_NR,
1863 .to_irq = samsung_gpiolib_to_irq,
1866 .base = (S5P_VA_GPIO + 0xC20),
1867 .irq_base = IRQ_EINT(8),
1869 .base = S5PC100_GPH1(0),
1870 .ngpio = S5PC100_GPIO_H1_NR,
1872 .to_irq = samsung_gpiolib_to_irq,
1875 .base = (S5P_VA_GPIO + 0xC40),
1876 .irq_base = IRQ_EINT(16),
1878 .base = S5PC100_GPH2(0),
1879 .ngpio = S5PC100_GPIO_H2_NR,
1881 .to_irq = samsung_gpiolib_to_irq,
1884 .base = (S5P_VA_GPIO + 0xC60),
1885 .irq_base = IRQ_EINT(24),
1887 .base = S5PC100_GPH3(0),
1888 .ngpio = S5PC100_GPIO_H3_NR,
1890 .to_irq = samsung_gpiolib_to_irq,
1897 * Followings are the gpio banks in S5PV210/S5PC110
1899 * The 'config' member when left to NULL, is initialized to the default
1900 * structure samsung_gpio_cfgs[3] in the init function below.
1902 * The 'base' member is also initialized in the init function below.
1903 * Note: The initialization of 'base' member of samsung_gpio_chip structure
1904 * uses the above macro and depends on the banks being listed in order here.
1907 static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
1908 #ifdef CONFIG_CPU_S5PV210
1911 .base = S5PV210_GPA0(0),
1912 .ngpio = S5PV210_GPIO_A0_NR,
1917 .base = S5PV210_GPA1(0),
1918 .ngpio = S5PV210_GPIO_A1_NR,
1923 .base = S5PV210_GPB(0),
1924 .ngpio = S5PV210_GPIO_B_NR,
1929 .base = S5PV210_GPC0(0),
1930 .ngpio = S5PV210_GPIO_C0_NR,
1935 .base = S5PV210_GPC1(0),
1936 .ngpio = S5PV210_GPIO_C1_NR,
1941 .base = S5PV210_GPD0(0),
1942 .ngpio = S5PV210_GPIO_D0_NR,
1947 .base = S5PV210_GPD1(0),
1948 .ngpio = S5PV210_GPIO_D1_NR,
1953 .base = S5PV210_GPE0(0),
1954 .ngpio = S5PV210_GPIO_E0_NR,
1959 .base = S5PV210_GPE1(0),
1960 .ngpio = S5PV210_GPIO_E1_NR,
1965 .base = S5PV210_GPF0(0),
1966 .ngpio = S5PV210_GPIO_F0_NR,
1971 .base = S5PV210_GPF1(0),
1972 .ngpio = S5PV210_GPIO_F1_NR,
1977 .base = S5PV210_GPF2(0),
1978 .ngpio = S5PV210_GPIO_F2_NR,
1983 .base = S5PV210_GPF3(0),
1984 .ngpio = S5PV210_GPIO_F3_NR,
1989 .base = S5PV210_GPG0(0),
1990 .ngpio = S5PV210_GPIO_G0_NR,
1995 .base = S5PV210_GPG1(0),
1996 .ngpio = S5PV210_GPIO_G1_NR,
2001 .base = S5PV210_GPG2(0),
2002 .ngpio = S5PV210_GPIO_G2_NR,
2007 .base = S5PV210_GPG3(0),
2008 .ngpio = S5PV210_GPIO_G3_NR,
2013 .base = S5PV210_GPI(0),
2014 .ngpio = S5PV210_GPIO_I_NR,
2019 .base = S5PV210_GPJ0(0),
2020 .ngpio = S5PV210_GPIO_J0_NR,
2025 .base = S5PV210_GPJ1(0),
2026 .ngpio = S5PV210_GPIO_J1_NR,
2031 .base = S5PV210_GPJ2(0),
2032 .ngpio = S5PV210_GPIO_J2_NR,
2037 .base = S5PV210_GPJ3(0),
2038 .ngpio = S5PV210_GPIO_J3_NR,
2043 .base = S5PV210_GPJ4(0),
2044 .ngpio = S5PV210_GPIO_J4_NR,
2049 .base = S5PV210_MP01(0),
2050 .ngpio = S5PV210_GPIO_MP01_NR,
2055 .base = S5PV210_MP02(0),
2056 .ngpio = S5PV210_GPIO_MP02_NR,
2061 .base = S5PV210_MP03(0),
2062 .ngpio = S5PV210_GPIO_MP03_NR,
2067 .base = S5PV210_MP04(0),
2068 .ngpio = S5PV210_GPIO_MP04_NR,
2073 .base = S5PV210_MP05(0),
2074 .ngpio = S5PV210_GPIO_MP05_NR,
2078 .base = (S5P_VA_GPIO + 0xC00),
2079 .irq_base = IRQ_EINT(0),
2081 .base = S5PV210_GPH0(0),
2082 .ngpio = S5PV210_GPIO_H0_NR,
2084 .to_irq = samsung_gpiolib_to_irq,
2087 .base = (S5P_VA_GPIO + 0xC20),
2088 .irq_base = IRQ_EINT(8),
2090 .base = S5PV210_GPH1(0),
2091 .ngpio = S5PV210_GPIO_H1_NR,
2093 .to_irq = samsung_gpiolib_to_irq,
2096 .base = (S5P_VA_GPIO + 0xC40),
2097 .irq_base = IRQ_EINT(16),
2099 .base = S5PV210_GPH2(0),
2100 .ngpio = S5PV210_GPIO_H2_NR,
2102 .to_irq = samsung_gpiolib_to_irq,
2105 .base = (S5P_VA_GPIO + 0xC60),
2106 .irq_base = IRQ_EINT(24),
2108 .base = S5PV210_GPH3(0),
2109 .ngpio = S5PV210_GPIO_H3_NR,
2111 .to_irq = samsung_gpiolib_to_irq,
2118 * Followings are the gpio banks in EXYNOS SoCs
2120 * The 'config' member when left to NULL, is initialized to the default
2121 * structure exynos_gpio_cfg in the init function below.
2123 * The 'base' member is also initialized in the init function below.
2124 * Note: The initialization of 'base' member of samsung_gpio_chip structure
2125 * uses the above macro and depends on the banks being listed in order here.
2128 #ifdef CONFIG_ARCH_EXYNOS4
2129 static struct samsung_gpio_chip exynos4_gpios_1[] = {
2132 .base = EXYNOS4_GPA0(0),
2133 .ngpio = EXYNOS4_GPIO_A0_NR,
2138 .base = EXYNOS4_GPA1(0),
2139 .ngpio = EXYNOS4_GPIO_A1_NR,
2144 .base = EXYNOS4_GPB(0),
2145 .ngpio = EXYNOS4_GPIO_B_NR,
2150 .base = EXYNOS4_GPC0(0),
2151 .ngpio = EXYNOS4_GPIO_C0_NR,
2156 .base = EXYNOS4_GPC1(0),
2157 .ngpio = EXYNOS4_GPIO_C1_NR,
2162 .base = EXYNOS4_GPD0(0),
2163 .ngpio = EXYNOS4_GPIO_D0_NR,
2168 .base = EXYNOS4_GPD1(0),
2169 .ngpio = EXYNOS4_GPIO_D1_NR,
2174 .base = EXYNOS4_GPE0(0),
2175 .ngpio = EXYNOS4_GPIO_E0_NR,
2180 .base = EXYNOS4_GPE1(0),
2181 .ngpio = EXYNOS4_GPIO_E1_NR,
2186 .base = EXYNOS4_GPE2(0),
2187 .ngpio = EXYNOS4_GPIO_E2_NR,
2192 .base = EXYNOS4_GPE3(0),
2193 .ngpio = EXYNOS4_GPIO_E3_NR,
2198 .base = EXYNOS4_GPE4(0),
2199 .ngpio = EXYNOS4_GPIO_E4_NR,
2204 .base = EXYNOS4_GPF0(0),
2205 .ngpio = EXYNOS4_GPIO_F0_NR,
2210 .base = EXYNOS4_GPF1(0),
2211 .ngpio = EXYNOS4_GPIO_F1_NR,
2216 .base = EXYNOS4_GPF2(0),
2217 .ngpio = EXYNOS4_GPIO_F2_NR,
2222 .base = EXYNOS4_GPF3(0),
2223 .ngpio = EXYNOS4_GPIO_F3_NR,
2230 #ifdef CONFIG_ARCH_EXYNOS4
2231 static struct samsung_gpio_chip exynos4_gpios_2[] = {
2234 .base = EXYNOS4_GPJ0(0),
2235 .ngpio = EXYNOS4_GPIO_J0_NR,
2240 .base = EXYNOS4_GPJ1(0),
2241 .ngpio = EXYNOS4_GPIO_J1_NR,
2246 .base = EXYNOS4_GPK0(0),
2247 .ngpio = EXYNOS4_GPIO_K0_NR,
2252 .base = EXYNOS4_GPK1(0),
2253 .ngpio = EXYNOS4_GPIO_K1_NR,
2258 .base = EXYNOS4_GPK2(0),
2259 .ngpio = EXYNOS4_GPIO_K2_NR,
2264 .base = EXYNOS4_GPK3(0),
2265 .ngpio = EXYNOS4_GPIO_K3_NR,
2270 .base = EXYNOS4_GPL0(0),
2271 .ngpio = EXYNOS4_GPIO_L0_NR,
2276 .base = EXYNOS4_GPL1(0),
2277 .ngpio = EXYNOS4_GPIO_L1_NR,
2282 .base = EXYNOS4_GPL2(0),
2283 .ngpio = EXYNOS4_GPIO_L2_NR,
2287 .config = &samsung_gpio_cfgs[8],
2289 .base = EXYNOS4_GPY0(0),
2290 .ngpio = EXYNOS4_GPIO_Y0_NR,
2294 .config = &samsung_gpio_cfgs[8],
2296 .base = EXYNOS4_GPY1(0),
2297 .ngpio = EXYNOS4_GPIO_Y1_NR,
2301 .config = &samsung_gpio_cfgs[8],
2303 .base = EXYNOS4_GPY2(0),
2304 .ngpio = EXYNOS4_GPIO_Y2_NR,
2308 .config = &samsung_gpio_cfgs[8],
2310 .base = EXYNOS4_GPY3(0),
2311 .ngpio = EXYNOS4_GPIO_Y3_NR,
2315 .config = &samsung_gpio_cfgs[8],
2317 .base = EXYNOS4_GPY4(0),
2318 .ngpio = EXYNOS4_GPIO_Y4_NR,
2322 .config = &samsung_gpio_cfgs[8],
2324 .base = EXYNOS4_GPY5(0),
2325 .ngpio = EXYNOS4_GPIO_Y5_NR,
2329 .config = &samsung_gpio_cfgs[8],
2331 .base = EXYNOS4_GPY6(0),
2332 .ngpio = EXYNOS4_GPIO_Y6_NR,
2336 .config = &samsung_gpio_cfgs[9],
2337 .irq_base = IRQ_EINT(0),
2339 .base = EXYNOS4_GPX0(0),
2340 .ngpio = EXYNOS4_GPIO_X0_NR,
2342 .to_irq = samsung_gpiolib_to_irq,
2345 .config = &samsung_gpio_cfgs[9],
2346 .irq_base = IRQ_EINT(8),
2348 .base = EXYNOS4_GPX1(0),
2349 .ngpio = EXYNOS4_GPIO_X1_NR,
2351 .to_irq = samsung_gpiolib_to_irq,
2354 .config = &samsung_gpio_cfgs[9],
2355 .irq_base = IRQ_EINT(16),
2357 .base = EXYNOS4_GPX2(0),
2358 .ngpio = EXYNOS4_GPIO_X2_NR,
2360 .to_irq = samsung_gpiolib_to_irq,
2363 .config = &samsung_gpio_cfgs[9],
2364 .irq_base = IRQ_EINT(24),
2366 .base = EXYNOS4_GPX3(0),
2367 .ngpio = EXYNOS4_GPIO_X3_NR,
2369 .to_irq = samsung_gpiolib_to_irq,
2375 #ifdef CONFIG_ARCH_EXYNOS4
2376 static struct samsung_gpio_chip exynos4_gpios_3[] = {
2379 .base = EXYNOS4_GPZ(0),
2380 .ngpio = EXYNOS4_GPIO_Z_NR,
2387 #ifdef CONFIG_ARCH_EXYNOS5
2388 static struct samsung_gpio_chip exynos5_gpios_1[] = {
2391 .base = EXYNOS5_GPA0(0),
2392 .ngpio = EXYNOS5_GPIO_A0_NR,
2397 .base = EXYNOS5_GPA1(0),
2398 .ngpio = EXYNOS5_GPIO_A1_NR,
2403 .base = EXYNOS5_GPA2(0),
2404 .ngpio = EXYNOS5_GPIO_A2_NR,
2409 .base = EXYNOS5_GPB0(0),
2410 .ngpio = EXYNOS5_GPIO_B0_NR,
2415 .base = EXYNOS5_GPB1(0),
2416 .ngpio = EXYNOS5_GPIO_B1_NR,
2421 .base = EXYNOS5_GPB2(0),
2422 .ngpio = EXYNOS5_GPIO_B2_NR,
2427 .base = EXYNOS5_GPB3(0),
2428 .ngpio = EXYNOS5_GPIO_B3_NR,
2433 .base = EXYNOS5_GPC0(0),
2434 .ngpio = EXYNOS5_GPIO_C0_NR,
2439 .base = EXYNOS5_GPC1(0),
2440 .ngpio = EXYNOS5_GPIO_C1_NR,
2445 .base = EXYNOS5_GPC2(0),
2446 .ngpio = EXYNOS5_GPIO_C2_NR,
2451 .base = EXYNOS5_GPC3(0),
2452 .ngpio = EXYNOS5_GPIO_C3_NR,
2457 .base = EXYNOS5_GPC4(0),
2458 .ngpio = EXYNOS5_GPIO_C4_NR,
2463 .base = EXYNOS5_GPD0(0),
2464 .ngpio = EXYNOS5_GPIO_D0_NR,
2469 .base = EXYNOS5_GPD1(0),
2470 .ngpio = EXYNOS5_GPIO_D1_NR,
2475 .base = EXYNOS5_GPY0(0),
2476 .ngpio = EXYNOS5_GPIO_Y0_NR,
2481 .base = EXYNOS5_GPY1(0),
2482 .ngpio = EXYNOS5_GPIO_Y1_NR,
2487 .base = EXYNOS5_GPY2(0),
2488 .ngpio = EXYNOS5_GPIO_Y2_NR,
2493 .base = EXYNOS5_GPY3(0),
2494 .ngpio = EXYNOS5_GPIO_Y3_NR,
2499 .base = EXYNOS5_GPY4(0),
2500 .ngpio = EXYNOS5_GPIO_Y4_NR,
2505 .base = EXYNOS5_GPY5(0),
2506 .ngpio = EXYNOS5_GPIO_Y5_NR,
2511 .base = EXYNOS5_GPY6(0),
2512 .ngpio = EXYNOS5_GPIO_Y6_NR,
2516 .config = &samsung_gpio_cfgs[9],
2517 .irq_base = IRQ_EINT(0),
2519 .base = EXYNOS5_GPX0(0),
2520 .ngpio = EXYNOS5_GPIO_X0_NR,
2522 .to_irq = samsung_gpiolib_to_irq,
2525 .config = &samsung_gpio_cfgs[9],
2526 .irq_base = IRQ_EINT(8),
2528 .base = EXYNOS5_GPX1(0),
2529 .ngpio = EXYNOS5_GPIO_X1_NR,
2531 .to_irq = samsung_gpiolib_to_irq,
2534 .config = &samsung_gpio_cfgs[9],
2535 .irq_base = IRQ_EINT(16),
2537 .base = EXYNOS5_GPX2(0),
2538 .ngpio = EXYNOS5_GPIO_X2_NR,
2540 .to_irq = samsung_gpiolib_to_irq,
2543 .config = &samsung_gpio_cfgs[9],
2544 .irq_base = IRQ_EINT(24),
2546 .base = EXYNOS5_GPX3(0),
2547 .ngpio = EXYNOS5_GPIO_X3_NR,
2549 .to_irq = samsung_gpiolib_to_irq,
2555 #ifdef CONFIG_ARCH_EXYNOS5
2556 static struct samsung_gpio_chip exynos5_gpios_2[] = {
2559 .base = EXYNOS5_GPE0(0),
2560 .ngpio = EXYNOS5_GPIO_E0_NR,
2565 .base = EXYNOS5_GPE1(0),
2566 .ngpio = EXYNOS5_GPIO_E1_NR,
2571 .base = EXYNOS5_GPF0(0),
2572 .ngpio = EXYNOS5_GPIO_F0_NR,
2577 .base = EXYNOS5_GPF1(0),
2578 .ngpio = EXYNOS5_GPIO_F1_NR,
2583 .base = EXYNOS5_GPG0(0),
2584 .ngpio = EXYNOS5_GPIO_G0_NR,
2589 .base = EXYNOS5_GPG1(0),
2590 .ngpio = EXYNOS5_GPIO_G1_NR,
2595 .base = EXYNOS5_GPG2(0),
2596 .ngpio = EXYNOS5_GPIO_G2_NR,
2601 .base = EXYNOS5_GPH0(0),
2602 .ngpio = EXYNOS5_GPIO_H0_NR,
2607 .base = EXYNOS5_GPH1(0),
2608 .ngpio = EXYNOS5_GPIO_H1_NR,
2616 #ifdef CONFIG_ARCH_EXYNOS5
2617 static struct samsung_gpio_chip exynos5_gpios_3[] = {
2620 .base = EXYNOS5_GPV0(0),
2621 .ngpio = EXYNOS5_GPIO_V0_NR,
2626 .base = EXYNOS5_GPV1(0),
2627 .ngpio = EXYNOS5_GPIO_V1_NR,
2632 .base = EXYNOS5_GPV2(0),
2633 .ngpio = EXYNOS5_GPIO_V2_NR,
2638 .base = EXYNOS5_GPV3(0),
2639 .ngpio = EXYNOS5_GPIO_V3_NR,
2644 .base = EXYNOS5_GPV4(0),
2645 .ngpio = EXYNOS5_GPIO_V4_NR,
2652 #ifdef CONFIG_ARCH_EXYNOS5
2653 static struct samsung_gpio_chip exynos5_gpios_4[] = {
2656 .base = EXYNOS5_GPZ(0),
2657 .ngpio = EXYNOS5_GPIO_Z_NR,
2665 #if defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF)
2666 static int exynos_gpio_xlate(struct gpio_chip *gc,
2667 const struct of_phandle_args *gpiospec, u32 *flags)
2671 if (WARN_ON(gc->of_gpio_n_cells < 4))
2674 if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells))
2677 if (gpiospec->args[0] > gc->ngpio)
2680 pin = gc->base + gpiospec->args[0];
2682 if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(gpiospec->args[1])))
2683 pr_warn("gpio_xlate: failed to set pin function\n");
2684 if (s3c_gpio_setpull(pin, gpiospec->args[2]))
2685 pr_warn("gpio_xlate: failed to set pin pull up/down\n");
2686 if (s5p_gpio_set_drvstr(pin, gpiospec->args[3]))
2687 pr_warn("gpio_xlate: failed to set pin drive strength\n");
2689 return gpiospec->args[0];
2692 static const struct of_device_id exynos_gpio_dt_match[] __initdata = {
2693 { .compatible = "samsung,exynos4-gpio", },
2697 static __init void exynos_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
2698 u64 base, u64 offset)
2700 struct gpio_chip *gc = &chip->chip;
2703 if (!of_have_populated_dt())
2706 address = chip->base ? base + ((u32)chip->base & 0xfff) : base + offset;
2707 gc->of_node = of_find_matching_node_by_address(NULL,
2708 exynos_gpio_dt_match, address);
2710 pr_info("gpio: device tree node not found for gpio controller"
2711 " with base address %08llx\n", address);
2714 gc->of_gpio_n_cells = 4;
2715 gc->of_xlate = exynos_gpio_xlate;
2717 #elif defined(CONFIG_ARCH_EXYNOS)
2718 static __init void exynos_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
2719 u64 base, u64 offset)
2723 #endif /* defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF) */
2725 static __init void exynos4_gpiolib_init(void)
2727 #ifdef CONFIG_CPU_EXYNOS4210
2728 struct samsung_gpio_chip *chip;
2730 void __iomem *gpio_base1, *gpio_base2, *gpio_base3;
2732 void __iomem *gpx_base;
2735 gpio_base1 = ioremap(EXYNOS4_PA_GPIO1, SZ_4K);
2736 if (gpio_base1 == NULL) {
2737 pr_err("unable to ioremap for gpio_base1\n");
2741 chip = exynos4_gpios_1;
2742 nr_chips = ARRAY_SIZE(exynos4_gpios_1);
2744 for (i = 0; i < nr_chips; i++, chip++) {
2745 if (!chip->config) {
2746 chip->config = &exynos_gpio_cfg;
2747 chip->group = group++;
2749 exynos_gpiolib_attach_ofnode(chip,
2750 EXYNOS4_PA_GPIO1, i * 0x20);
2752 samsung_gpiolib_add_4bit_chips(exynos4_gpios_1,
2753 nr_chips, gpio_base1);
2756 gpio_base2 = ioremap(EXYNOS4_PA_GPIO2, SZ_4K);
2757 if (gpio_base2 == NULL) {
2758 pr_err("unable to ioremap for gpio_base2\n");
2762 /* need to set base address for gpx */
2763 chip = &exynos4_gpios_2[16];
2764 gpx_base = gpio_base2 + 0xC00;
2765 for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
2766 chip->base = gpx_base;
2768 chip = exynos4_gpios_2;
2769 nr_chips = ARRAY_SIZE(exynos4_gpios_2);
2771 for (i = 0; i < nr_chips; i++, chip++) {
2772 if (!chip->config) {
2773 chip->config = &exynos_gpio_cfg;
2774 chip->group = group++;
2776 exynos_gpiolib_attach_ofnode(chip,
2777 EXYNOS4_PA_GPIO2, i * 0x20);
2779 samsung_gpiolib_add_4bit_chips(exynos4_gpios_2,
2780 nr_chips, gpio_base2);
2783 gpio_base3 = ioremap(EXYNOS4_PA_GPIO3, SZ_256);
2784 if (gpio_base3 == NULL) {
2785 pr_err("unable to ioremap for gpio_base3\n");
2789 chip = exynos4_gpios_3;
2790 nr_chips = ARRAY_SIZE(exynos4_gpios_3);
2792 for (i = 0; i < nr_chips; i++, chip++) {
2793 if (!chip->config) {
2794 chip->config = &exynos_gpio_cfg;
2795 chip->group = group++;
2797 exynos_gpiolib_attach_ofnode(chip,
2798 EXYNOS4_PA_GPIO3, i * 0x20);
2800 samsung_gpiolib_add_4bit_chips(exynos4_gpios_3,
2801 nr_chips, gpio_base3);
2803 #if defined(CONFIG_CPU_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT)
2804 s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS);
2805 s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS);
2811 iounmap(gpio_base2);
2813 iounmap(gpio_base1);
2816 #endif /* CONFIG_CPU_EXYNOS4210 */
2819 static __init void exynos5_gpiolib_init(void)
2821 #ifdef CONFIG_SOC_EXYNOS5250
2822 struct samsung_gpio_chip *chip;
2824 void __iomem *gpio_base1, *gpio_base2, *gpio_base3, *gpio_base4;
2826 void __iomem *gpx_base;
2829 gpio_base1 = ioremap(EXYNOS5_PA_GPIO1, SZ_4K);
2830 if (gpio_base1 == NULL) {
2831 pr_err("unable to ioremap for gpio_base1\n");
2835 /* need to set base address for gpc4 */
2836 exynos5_gpios_1[11].base = gpio_base1 + 0x2E0;
2838 /* need to set base address for gpx */
2839 chip = &exynos5_gpios_1[21];
2840 gpx_base = gpio_base1 + 0xC00;
2841 for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
2842 chip->base = gpx_base;
2844 chip = exynos5_gpios_1;
2845 nr_chips = ARRAY_SIZE(exynos5_gpios_1);
2847 for (i = 0; i < nr_chips; i++, chip++) {
2848 if (!chip->config) {
2849 chip->config = &exynos_gpio_cfg;
2850 chip->group = group++;
2852 exynos_gpiolib_attach_ofnode(chip,
2853 EXYNOS5_PA_GPIO1, i * 0x20);
2855 samsung_gpiolib_add_4bit_chips(exynos5_gpios_1,
2856 nr_chips, gpio_base1);
2859 gpio_base2 = ioremap(EXYNOS5_PA_GPIO2, SZ_4K);
2860 if (gpio_base2 == NULL) {
2861 pr_err("unable to ioremap for gpio_base2\n");
2865 chip = exynos5_gpios_2;
2866 nr_chips = ARRAY_SIZE(exynos5_gpios_2);
2868 for (i = 0; i < nr_chips; i++, chip++) {
2869 if (!chip->config) {
2870 chip->config = &exynos_gpio_cfg;
2871 chip->group = group++;
2873 exynos_gpiolib_attach_ofnode(chip,
2874 EXYNOS5_PA_GPIO2, i * 0x20);
2876 samsung_gpiolib_add_4bit_chips(exynos5_gpios_2,
2877 nr_chips, gpio_base2);
2880 gpio_base3 = ioremap(EXYNOS5_PA_GPIO3, SZ_4K);
2881 if (gpio_base3 == NULL) {
2882 pr_err("unable to ioremap for gpio_base3\n");
2886 /* need to set base address for gpv */
2887 exynos5_gpios_3[0].base = gpio_base3;
2888 exynos5_gpios_3[1].base = gpio_base3 + 0x20;
2889 exynos5_gpios_3[2].base = gpio_base3 + 0x60;
2890 exynos5_gpios_3[3].base = gpio_base3 + 0x80;
2891 exynos5_gpios_3[4].base = gpio_base3 + 0xC0;
2893 chip = exynos5_gpios_3;
2894 nr_chips = ARRAY_SIZE(exynos5_gpios_3);
2896 for (i = 0; i < nr_chips; i++, chip++) {
2897 if (!chip->config) {
2898 chip->config = &exynos_gpio_cfg;
2899 chip->group = group++;
2901 exynos_gpiolib_attach_ofnode(chip,
2902 EXYNOS5_PA_GPIO3, i * 0x20);
2904 samsung_gpiolib_add_4bit_chips(exynos5_gpios_3,
2905 nr_chips, gpio_base3);
2908 gpio_base4 = ioremap(EXYNOS5_PA_GPIO4, SZ_4K);
2909 if (gpio_base4 == NULL) {
2910 pr_err("unable to ioremap for gpio_base4\n");
2914 chip = exynos5_gpios_4;
2915 nr_chips = ARRAY_SIZE(exynos5_gpios_4);
2917 for (i = 0; i < nr_chips; i++, chip++) {
2918 if (!chip->config) {
2919 chip->config = &exynos_gpio_cfg;
2920 chip->group = group++;
2922 exynos_gpiolib_attach_ofnode(chip,
2923 EXYNOS5_PA_GPIO4, i * 0x20);
2925 samsung_gpiolib_add_4bit_chips(exynos5_gpios_4,
2926 nr_chips, gpio_base4);
2930 iounmap(gpio_base3);
2932 iounmap(gpio_base2);
2934 iounmap(gpio_base1);
2938 #endif /* CONFIG_SOC_EXYNOS5250 */
2941 /* TODO: cleanup soc_is_* */
2942 static __init int samsung_gpiolib_init(void)
2944 struct samsung_gpio_chip *chip;
2948 samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
2950 if (soc_is_s3c24xx()) {
2951 s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
2952 ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
2953 } else if (soc_is_s3c64xx()) {
2954 samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
2955 ARRAY_SIZE(s3c64xx_gpios_2bit),
2956 S3C64XX_VA_GPIO + 0xE0, 0x20);
2957 samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit,
2958 ARRAY_SIZE(s3c64xx_gpios_4bit),
2960 samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
2961 ARRAY_SIZE(s3c64xx_gpios_4bit2));
2962 } else if (soc_is_s5p6440()) {
2963 samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit,
2964 ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0);
2965 samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit,
2966 ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO);
2967 samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2,
2968 ARRAY_SIZE(s5p6440_gpios_4bit2));
2969 s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank,
2970 ARRAY_SIZE(s5p6440_gpios_rbank));
2971 } else if (soc_is_s5p6450()) {
2972 samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit,
2973 ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0);
2974 samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit,
2975 ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO);
2976 samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2,
2977 ARRAY_SIZE(s5p6450_gpios_4bit2));
2978 s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank,
2979 ARRAY_SIZE(s5p6450_gpios_rbank));
2980 } else if (soc_is_s5pc100()) {
2982 chip = s5pc100_gpios_4bit;
2983 nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
2985 for (i = 0; i < nr_chips; i++, chip++) {
2986 if (!chip->config) {
2987 chip->config = &samsung_gpio_cfgs[3];
2988 chip->group = group++;
2991 samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO);
2992 #if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT)
2993 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
2995 } else if (soc_is_s5pv210()) {
2997 chip = s5pv210_gpios_4bit;
2998 nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
3000 for (i = 0; i < nr_chips; i++, chip++) {
3001 if (!chip->config) {
3002 chip->config = &samsung_gpio_cfgs[3];
3003 chip->group = group++;
3006 samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO);
3007 #if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT)
3008 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
3010 } else if (soc_is_exynos4210()) {
3011 exynos4_gpiolib_init();
3012 } else if (soc_is_exynos5250()) {
3013 exynos5_gpiolib_init();
3015 WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
3021 core_initcall(samsung_gpiolib_init);
3023 int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
3025 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3026 unsigned long flags;
3033 offset = pin - chip->chip.base;
3035 samsung_gpio_lock(chip, flags);
3036 ret = samsung_gpio_do_setcfg(chip, offset, config);
3037 samsung_gpio_unlock(chip, flags);
3041 EXPORT_SYMBOL(s3c_gpio_cfgpin);
3043 int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
3048 for (; nr > 0; nr--, start++) {
3049 ret = s3c_gpio_cfgpin(start, cfg);
3056 EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
3058 int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
3059 unsigned int cfg, samsung_gpio_pull_t pull)
3063 for (; nr > 0; nr--, start++) {
3064 s3c_gpio_setpull(start, pull);
3065 ret = s3c_gpio_cfgpin(start, cfg);
3072 EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
3074 unsigned s3c_gpio_getcfg(unsigned int pin)
3076 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3077 unsigned long flags;
3082 offset = pin - chip->chip.base;
3084 samsung_gpio_lock(chip, flags);
3085 ret = samsung_gpio_do_getcfg(chip, offset);
3086 samsung_gpio_unlock(chip, flags);
3091 EXPORT_SYMBOL(s3c_gpio_getcfg);
3093 int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull)
3095 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3096 unsigned long flags;
3102 offset = pin - chip->chip.base;
3104 samsung_gpio_lock(chip, flags);
3105 ret = samsung_gpio_do_setpull(chip, offset, pull);
3106 samsung_gpio_unlock(chip, flags);
3110 EXPORT_SYMBOL(s3c_gpio_setpull);
3112 samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
3114 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3115 unsigned long flags;
3120 offset = pin - chip->chip.base;
3122 samsung_gpio_lock(chip, flags);
3123 pup = samsung_gpio_do_getpull(chip, offset);
3124 samsung_gpio_unlock(chip, flags);
3127 return (__force samsung_gpio_pull_t)pup;
3129 EXPORT_SYMBOL(s3c_gpio_getpull);
3131 /* gpiolib wrappers until these are totally eliminated */
3133 void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
3137 WARN_ON(to); /* should be none of these left */
3140 /* if pull is enabled, try first with up, and if that
3141 * fails, try using down */
3143 ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP);
3145 s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN);
3147 s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE);
3150 EXPORT_SYMBOL(s3c2410_gpio_pullup);
3152 void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
3154 /* do this via gpiolib until all users removed */
3156 gpio_request(pin, "temporary");
3157 gpio_set_value(pin, to);
3160 EXPORT_SYMBOL(s3c2410_gpio_setpin);
3162 unsigned int s3c2410_gpio_getpin(unsigned int pin)
3164 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3165 unsigned long offs = pin - chip->chip.base;
3167 return __raw_readl(chip->base + 0x04) & (1 << offs);
3169 EXPORT_SYMBOL(s3c2410_gpio_getpin);
3171 #ifdef CONFIG_S5P_GPIO_DRVSTR
3172 s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
3174 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3183 off = pin - chip->chip.base;
3185 reg = chip->base + 0x0C;
3187 drvstr = __raw_readl(reg);
3188 drvstr = drvstr >> shift;
3191 return (__force s5p_gpio_drvstr_t)drvstr;
3193 EXPORT_SYMBOL(s5p_gpio_get_drvstr);
3195 int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
3197 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3206 off = pin - chip->chip.base;
3208 reg = chip->base + 0x0C;
3210 tmp = __raw_readl(reg);
3211 tmp &= ~(0x3 << shift);
3212 tmp |= drvstr << shift;
3214 __raw_writel(tmp, reg);
3218 EXPORT_SYMBOL(s5p_gpio_set_drvstr);
3219 #endif /* CONFIG_S5P_GPIO_DRVSTR */
3221 #ifdef CONFIG_PLAT_S3C24XX
3222 unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
3224 unsigned long flags;
3225 unsigned long misccr;
3227 local_irq_save(flags);
3228 misccr = __raw_readl(S3C24XX_MISCCR);
3231 __raw_writel(misccr, S3C24XX_MISCCR);
3232 local_irq_restore(flags);
3236 EXPORT_SYMBOL(s3c2410_modify_misccr);