2 * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
3 * http://www.samsung.com/
5 * Copyright 2008 Openmoko, Inc.
6 * Copyright 2008 Simtec Electronics
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>
34 #include <mach/regs-gpio.h>
36 #if defined(CONFIG_ARCH_S3C24XX) || defined(CONFIG_ARCH_S3C64XX)
37 #include <mach/gpio-samsung.h>
41 #include <plat/gpio-core.h>
42 #include <plat/gpio-cfg.h>
43 #include <plat/gpio-cfg-helpers.h>
46 int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip,
47 unsigned int off, samsung_gpio_pull_t pull)
49 void __iomem *reg = chip->base + 0x08;
53 pup = __raw_readl(reg);
56 __raw_writel(pup, reg);
61 samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip,
64 void __iomem *reg = chip->base + 0x08;
66 u32 pup = __raw_readl(reg);
71 return (__force samsung_gpio_pull_t)pup;
74 int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip,
75 unsigned int off, samsung_gpio_pull_t pull)
78 case S3C_GPIO_PULL_NONE:
81 case S3C_GPIO_PULL_UP:
84 case S3C_GPIO_PULL_DOWN:
88 return samsung_gpio_setpull_updown(chip, off, pull);
91 samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip,
94 samsung_gpio_pull_t pull;
96 pull = samsung_gpio_getpull_updown(chip, off);
100 pull = S3C_GPIO_PULL_UP;
104 pull = S3C_GPIO_PULL_NONE;
107 pull = S3C_GPIO_PULL_DOWN;
114 static int s3c24xx_gpio_setpull_1(struct samsung_gpio_chip *chip,
115 unsigned int off, samsung_gpio_pull_t pull,
116 samsung_gpio_pull_t updown)
118 void __iomem *reg = chip->base + 0x08;
119 u32 pup = __raw_readl(reg);
123 else if (pull == S3C_GPIO_PULL_NONE)
128 __raw_writel(pup, reg);
132 static samsung_gpio_pull_t s3c24xx_gpio_getpull_1(struct samsung_gpio_chip *chip,
134 samsung_gpio_pull_t updown)
136 void __iomem *reg = chip->base + 0x08;
137 u32 pup = __raw_readl(reg);
140 return pup ? S3C_GPIO_PULL_NONE : updown;
143 samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip,
146 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP);
149 int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip,
150 unsigned int off, samsung_gpio_pull_t pull)
152 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP);
155 samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip,
158 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN);
161 int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
162 unsigned int off, samsung_gpio_pull_t pull)
164 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
168 * samsung_gpio_setcfg_2bit - Samsung 2bit style GPIO configuration.
169 * @chip: The gpio chip that is being configured.
170 * @off: The offset for the GPIO being configured.
171 * @cfg: The configuration value to set.
173 * This helper deal with the GPIO cases where the control register
174 * has two bits of configuration per gpio, which have the following
178 * 1x = special function
181 static int samsung_gpio_setcfg_2bit(struct samsung_gpio_chip *chip,
182 unsigned int off, unsigned int cfg)
184 void __iomem *reg = chip->base;
185 unsigned int shift = off * 2;
188 if (samsung_gpio_is_cfg_special(cfg)) {
196 con = __raw_readl(reg);
197 con &= ~(0x3 << shift);
199 __raw_writel(con, reg);
205 * samsung_gpio_getcfg_2bit - Samsung 2bit style GPIO configuration read.
206 * @chip: The gpio chip that is being configured.
207 * @off: The offset for the GPIO being configured.
209 * The reverse of samsung_gpio_setcfg_2bit(). Will return a value which
210 * could be directly passed back to samsung_gpio_setcfg_2bit(), from the
211 * S3C_GPIO_SPECIAL() macro.
214 static unsigned int samsung_gpio_getcfg_2bit(struct samsung_gpio_chip *chip,
219 con = __raw_readl(chip->base);
223 /* this conversion works for IN and OUT as well as special mode */
224 return S3C_GPIO_SPECIAL(con);
228 * samsung_gpio_setcfg_4bit - Samsung 4bit single register GPIO config.
229 * @chip: The gpio chip that is being configured.
230 * @off: The offset for the GPIO being configured.
231 * @cfg: The configuration value to set.
233 * This helper deal with the GPIO cases where the control register has 4 bits
234 * of control per GPIO, generally in the form of:
237 * others = Special functions (dependent on bank)
239 * Note, since the code to deal with the case where there are two control
240 * registers instead of one, we do not have a separate set of functions for
244 static int samsung_gpio_setcfg_4bit(struct samsung_gpio_chip *chip,
245 unsigned int off, unsigned int cfg)
247 void __iomem *reg = chip->base;
248 unsigned int shift = (off & 7) * 4;
251 if (off < 8 && chip->chip.ngpio > 8)
254 if (samsung_gpio_is_cfg_special(cfg)) {
259 con = __raw_readl(reg);
260 con &= ~(0xf << shift);
262 __raw_writel(con, reg);
268 * samsung_gpio_getcfg_4bit - Samsung 4bit single register GPIO config read.
269 * @chip: The gpio chip that is being configured.
270 * @off: The offset for the GPIO being configured.
272 * The reverse of samsung_gpio_setcfg_4bit(), turning a gpio configuration
273 * register setting into a value the software can use, such as could be passed
274 * to samsung_gpio_setcfg_4bit().
276 * @sa samsung_gpio_getcfg_2bit
279 static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
282 void __iomem *reg = chip->base;
283 unsigned int shift = (off & 7) * 4;
286 if (off < 8 && chip->chip.ngpio > 8)
289 con = __raw_readl(reg);
293 /* this conversion works for IN and OUT as well as special mode */
294 return S3C_GPIO_SPECIAL(con);
297 #ifdef CONFIG_PLAT_S3C24XX
299 * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A)
300 * @chip: The gpio chip that is being configured.
301 * @off: The offset for the GPIO being configured.
302 * @cfg: The configuration value to set.
304 * This helper deal with the GPIO cases where the control register
305 * has one bit of configuration for the gpio, where setting the bit
306 * means the pin is in special function mode and unset means output.
309 static int s3c24xx_gpio_setcfg_abank(struct samsung_gpio_chip *chip,
310 unsigned int off, unsigned int cfg)
312 void __iomem *reg = chip->base;
313 unsigned int shift = off;
316 if (samsung_gpio_is_cfg_special(cfg)) {
319 /* Map output to 0, and SFN2 to 1 */
327 con = __raw_readl(reg);
328 con &= ~(0x1 << shift);
330 __raw_writel(con, reg);
336 * s3c24xx_gpio_getcfg_abank - S3C24XX style GPIO configuration read (Bank A)
337 * @chip: The gpio chip that is being configured.
338 * @off: The offset for the GPIO being configured.
340 * The reverse of s3c24xx_gpio_setcfg_abank() turning an GPIO into a usable
341 * GPIO configuration value.
343 * @sa samsung_gpio_getcfg_2bit
344 * @sa samsung_gpio_getcfg_4bit
347 static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
352 con = __raw_readl(chip->base);
357 return S3C_GPIO_SFN(con);
361 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
362 static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
363 unsigned int off, unsigned int cfg)
365 void __iomem *reg = chip->base;
376 shift = (off & 7) * 4;
380 shift = ((off + 1) & 7) * 4;
383 shift = ((off + 1) & 7) * 4;
387 if (samsung_gpio_is_cfg_special(cfg)) {
392 con = __raw_readl(reg);
393 con &= ~(0xf << shift);
395 __raw_writel(con, reg);
401 static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
404 for (; nr_chips > 0; nr_chips--, chipcfg++) {
405 if (!chipcfg->set_config)
406 chipcfg->set_config = samsung_gpio_setcfg_4bit;
407 if (!chipcfg->get_config)
408 chipcfg->get_config = samsung_gpio_getcfg_4bit;
409 if (!chipcfg->set_pull)
410 chipcfg->set_pull = samsung_gpio_setpull_updown;
411 if (!chipcfg->get_pull)
412 chipcfg->get_pull = samsung_gpio_getpull_updown;
416 struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
417 .set_config = samsung_gpio_setcfg_2bit,
418 .get_config = samsung_gpio_getcfg_2bit,
421 #ifdef CONFIG_PLAT_S3C24XX
422 static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
423 .set_config = s3c24xx_gpio_setcfg_abank,
424 .get_config = s3c24xx_gpio_getcfg_abank,
428 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
429 static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
431 .set_config = s5p64x0_gpio_setcfg_rbank,
432 .get_config = samsung_gpio_getcfg_4bit,
433 .set_pull = samsung_gpio_setpull_updown,
434 .get_pull = samsung_gpio_getpull_updown,
438 static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
453 .set_config = samsung_gpio_setcfg_2bit,
454 .get_config = samsung_gpio_getcfg_2bit,
458 .set_config = samsung_gpio_setcfg_2bit,
459 .get_config = samsung_gpio_getcfg_2bit,
463 .set_config = samsung_gpio_setcfg_2bit,
464 .get_config = samsung_gpio_getcfg_2bit,
467 .set_config = samsung_gpio_setcfg_2bit,
468 .get_config = samsung_gpio_getcfg_2bit,
473 * Default routines for controlling GPIO, based on the original S3C24XX
474 * GPIO functions which deal with the case where each gpio bank of the
475 * chip is as following:
477 * base + 0x00: Control register, 2 bits per gpio
478 * gpio n: 2 bits starting at (2*n)
479 * 00 = input, 01 = output, others mean special-function
480 * base + 0x04: Data register, 1 bit per gpio
484 static int samsung_gpiolib_2bit_input(struct gpio_chip *chip, unsigned offset)
486 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
487 void __iomem *base = ourchip->base;
491 samsung_gpio_lock(ourchip, flags);
493 con = __raw_readl(base + 0x00);
494 con &= ~(3 << (offset * 2));
496 __raw_writel(con, base + 0x00);
498 samsung_gpio_unlock(ourchip, flags);
502 static int samsung_gpiolib_2bit_output(struct gpio_chip *chip,
503 unsigned offset, int value)
505 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
506 void __iomem *base = ourchip->base;
511 samsung_gpio_lock(ourchip, flags);
513 dat = __raw_readl(base + 0x04);
514 dat &= ~(1 << offset);
517 __raw_writel(dat, base + 0x04);
519 con = __raw_readl(base + 0x00);
520 con &= ~(3 << (offset * 2));
521 con |= 1 << (offset * 2);
523 __raw_writel(con, base + 0x00);
524 __raw_writel(dat, base + 0x04);
526 samsung_gpio_unlock(ourchip, flags);
531 * The samsung_gpiolib_4bit routines are to control the gpio banks where
532 * the gpio configuration register (GPxCON) has 4 bits per GPIO, as the
535 * base + 0x00: Control register, 4 bits per gpio
536 * gpio n: 4 bits starting at (4*n)
537 * 0000 = input, 0001 = output, others mean special-function
538 * base + 0x04: Data register, 1 bit per gpio
541 * Note, since the data register is one bit per gpio and is at base + 0x4
542 * we can use samsung_gpiolib_get and samsung_gpiolib_set to change the
543 * state of the output.
546 static int samsung_gpiolib_4bit_input(struct gpio_chip *chip,
549 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
550 void __iomem *base = ourchip->base;
553 con = __raw_readl(base + GPIOCON_OFF);
554 if (ourchip->bitmap_gpio_int & BIT(offset))
555 con |= 0xf << con_4bit_shift(offset);
557 con &= ~(0xf << con_4bit_shift(offset));
558 __raw_writel(con, base + GPIOCON_OFF);
560 pr_debug("%s: %p: CON now %08lx\n", __func__, base, con);
565 static int samsung_gpiolib_4bit_output(struct gpio_chip *chip,
566 unsigned int offset, int value)
568 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
569 void __iomem *base = ourchip->base;
573 con = __raw_readl(base + GPIOCON_OFF);
574 con &= ~(0xf << con_4bit_shift(offset));
575 con |= 0x1 << con_4bit_shift(offset);
577 dat = __raw_readl(base + GPIODAT_OFF);
582 dat &= ~(1 << offset);
584 __raw_writel(dat, base + GPIODAT_OFF);
585 __raw_writel(con, base + GPIOCON_OFF);
586 __raw_writel(dat, base + GPIODAT_OFF);
588 pr_debug("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
594 * The next set of routines are for the case where the GPIO configuration
595 * registers are 4 bits per GPIO but there is more than one register (the
596 * bank has more than 8 GPIOs.
598 * This case is the similar to the 4 bit case, but the registers are as
601 * base + 0x00: Control register, 4 bits per gpio (lower 8 GPIOs)
602 * gpio n: 4 bits starting at (4*n)
603 * 0000 = input, 0001 = output, others mean special-function
604 * base + 0x04: Control register, 4 bits per gpio (up to 8 additions GPIOs)
605 * gpio n: 4 bits starting at (4*n)
606 * 0000 = input, 0001 = output, others mean special-function
607 * base + 0x08: Data register, 1 bit per gpio
610 * To allow us to use the samsung_gpiolib_get and samsung_gpiolib_set
611 * routines we store the 'base + 0x4' address so that these routines see
612 * the data register at ourchip->base + 0x04.
615 static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip,
618 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
619 void __iomem *base = ourchip->base;
620 void __iomem *regcon = base;
628 con = __raw_readl(regcon);
629 con &= ~(0xf << con_4bit_shift(offset));
630 __raw_writel(con, regcon);
632 pr_debug("%s: %p: CON %08lx\n", __func__, base, con);
637 static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
638 unsigned int offset, int value)
640 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
641 void __iomem *base = ourchip->base;
642 void __iomem *regcon = base;
645 unsigned con_offset = offset;
652 con = __raw_readl(regcon);
653 con &= ~(0xf << con_4bit_shift(con_offset));
654 con |= 0x1 << con_4bit_shift(con_offset);
656 dat = __raw_readl(base + GPIODAT_OFF);
661 dat &= ~(1 << offset);
663 __raw_writel(dat, base + GPIODAT_OFF);
664 __raw_writel(con, regcon);
665 __raw_writel(dat, base + GPIODAT_OFF);
667 pr_debug("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
672 #ifdef CONFIG_PLAT_S3C24XX
673 /* The next set of routines are for the case of s3c24xx bank a */
675 static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
680 static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
681 unsigned offset, int value)
683 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
684 void __iomem *base = ourchip->base;
689 local_irq_save(flags);
691 con = __raw_readl(base + 0x00);
692 dat = __raw_readl(base + 0x04);
694 dat &= ~(1 << offset);
698 __raw_writel(dat, base + 0x04);
700 con &= ~(1 << offset);
702 __raw_writel(con, base + 0x00);
703 __raw_writel(dat, base + 0x04);
705 local_irq_restore(flags);
710 /* The next set of routines are for the case of s5p64x0 bank r */
712 static int s5p64x0_gpiolib_rbank_input(struct gpio_chip *chip,
715 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
716 void __iomem *base = ourchip->base;
717 void __iomem *regcon = base;
737 samsung_gpio_lock(ourchip, flags);
739 con = __raw_readl(regcon);
740 con &= ~(0xf << con_4bit_shift(offset));
741 __raw_writel(con, regcon);
743 samsung_gpio_unlock(ourchip, flags);
748 static int s5p64x0_gpiolib_rbank_output(struct gpio_chip *chip,
749 unsigned int offset, int value)
751 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
752 void __iomem *base = ourchip->base;
753 void __iomem *regcon = base;
757 unsigned con_offset = offset;
759 switch (con_offset) {
775 samsung_gpio_lock(ourchip, flags);
777 con = __raw_readl(regcon);
778 con &= ~(0xf << con_4bit_shift(con_offset));
779 con |= 0x1 << con_4bit_shift(con_offset);
781 dat = __raw_readl(base + GPIODAT_OFF);
785 dat &= ~(1 << offset);
787 __raw_writel(con, regcon);
788 __raw_writel(dat, base + GPIODAT_OFF);
790 samsung_gpio_unlock(ourchip, flags);
795 static void samsung_gpiolib_set(struct gpio_chip *chip,
796 unsigned offset, int value)
798 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
799 void __iomem *base = ourchip->base;
803 samsung_gpio_lock(ourchip, flags);
805 dat = __raw_readl(base + 0x04);
806 dat &= ~(1 << offset);
809 __raw_writel(dat, base + 0x04);
811 samsung_gpio_unlock(ourchip, flags);
814 static int samsung_gpiolib_get(struct gpio_chip *chip, unsigned offset)
816 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
819 val = __raw_readl(ourchip->base + 0x04);
827 * CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios
828 * for use with the configuration calls, and other parts of the s3c gpiolib
831 * Not all s3c support code will need this, as some configurations of cpu
832 * may only support one or two different configuration options and have an
833 * easy gpio to samsung_gpio_chip mapping function. If this is the case, then
834 * the machine support file should provide its own samsung_gpiolib_getchip()
835 * and any other necessary functions.
838 #ifdef CONFIG_S3C_GPIO_TRACK
839 struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END];
841 static __init void s3c_gpiolib_track(struct samsung_gpio_chip *chip)
846 gpn = chip->chip.base;
847 for (i = 0; i < chip->chip.ngpio; i++, gpn++) {
848 BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios));
849 s3c_gpios[gpn] = chip;
852 #endif /* CONFIG_S3C_GPIO_TRACK */
855 * samsung_gpiolib_add() - add the Samsung gpio_chip.
856 * @chip: The chip to register
858 * This is a wrapper to gpiochip_add() that takes our specific gpio chip
859 * information and makes the necessary alterations for the platform and
860 * notes the information for use with the configuration systems and any
861 * other parts of the system.
864 static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
866 struct gpio_chip *gc = &chip->chip;
873 spin_lock_init(&chip->lock);
875 if (!gc->direction_input)
876 gc->direction_input = samsung_gpiolib_2bit_input;
877 if (!gc->direction_output)
878 gc->direction_output = samsung_gpiolib_2bit_output;
880 gc->set = samsung_gpiolib_set;
882 gc->get = samsung_gpiolib_get;
885 if (chip->pm != NULL) {
886 if (!chip->pm->save || !chip->pm->resume)
887 pr_err("gpio: %s has missing PM functions\n",
890 pr_err("gpio: %s has no PM function\n", gc->label);
893 /* gpiochip_add() prints own failure message on error. */
894 ret = gpiochip_add(gc);
896 s3c_gpiolib_track(chip);
899 static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
900 int nr_chips, void __iomem *base)
903 struct gpio_chip *gc = &chip->chip;
905 for (i = 0 ; i < nr_chips; i++, chip++) {
906 /* skip banks not present on SoC */
907 if (chip->chip.base >= S3C_GPIO_END)
911 chip->config = &s3c24xx_gpiocfg_default;
913 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
914 if ((base != NULL) && (chip->base == NULL))
915 chip->base = base + ((i) * 0x10);
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 samsung_gpiolib_add(chip);
926 static void __init samsung_gpiolib_add_2bit_chips(struct samsung_gpio_chip *chip,
927 int nr_chips, void __iomem *base,
932 for (i = 0 ; i < nr_chips; i++, chip++) {
933 chip->chip.direction_input = samsung_gpiolib_2bit_input;
934 chip->chip.direction_output = samsung_gpiolib_2bit_output;
937 chip->config = &samsung_gpio_cfgs[7];
939 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
940 if ((base != NULL) && (chip->base == NULL))
941 chip->base = base + ((i) * offset);
943 samsung_gpiolib_add(chip);
948 * samsung_gpiolib_add_4bit_chips - 4bit single register GPIO config.
949 * @chip: The gpio chip that is being configured.
950 * @nr_chips: The no of chips (gpio ports) for the GPIO being configured.
952 * This helper deal with the GPIO cases where the control register has 4 bits
953 * of control per GPIO, generally in the form of:
956 * others = Special functions (dependent on bank)
958 * Note, since the code to deal with the case where there are two control
959 * registers instead of one, we do not have a separate set of function
960 * (samsung_gpiolib_add_4bit2_chips)for each case.
963 static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip,
964 int nr_chips, void __iomem *base)
968 for (i = 0 ; i < nr_chips; i++, chip++) {
969 chip->chip.direction_input = samsung_gpiolib_4bit_input;
970 chip->chip.direction_output = samsung_gpiolib_4bit_output;
973 chip->config = &samsung_gpio_cfgs[2];
975 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
976 if ((base != NULL) && (chip->base == NULL))
977 chip->base = base + ((i) * 0x20);
979 chip->bitmap_gpio_int = 0;
981 samsung_gpiolib_add(chip);
985 static void __init samsung_gpiolib_add_4bit2_chips(struct samsung_gpio_chip *chip,
988 for (; nr_chips > 0; nr_chips--, chip++) {
989 chip->chip.direction_input = samsung_gpiolib_4bit2_input;
990 chip->chip.direction_output = samsung_gpiolib_4bit2_output;
993 chip->config = &samsung_gpio_cfgs[2];
995 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
997 samsung_gpiolib_add(chip);
1001 static void __init s5p64x0_gpiolib_add_rbank(struct samsung_gpio_chip *chip,
1004 for (; nr_chips > 0; nr_chips--, chip++) {
1005 chip->chip.direction_input = s5p64x0_gpiolib_rbank_input;
1006 chip->chip.direction_output = s5p64x0_gpiolib_rbank_output;
1009 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1011 samsung_gpiolib_add(chip);
1015 int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
1017 struct samsung_gpio_chip *samsung_chip = container_of(chip, struct samsung_gpio_chip, chip);
1019 return samsung_chip->irq_base + offset;
1022 #ifdef CONFIG_PLAT_S3C24XX
1023 static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
1026 if (soc_is_s3c2412())
1027 return IRQ_EINT0_2412 + offset;
1029 return IRQ_EINT0 + offset;
1033 return IRQ_EINT4 + offset - 4;
1039 #ifdef CONFIG_ARCH_S3C64XX
1040 static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin)
1042 return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
1045 static int s3c64xx_gpiolib_lbank_to_irq(struct gpio_chip *chip, unsigned pin)
1047 return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO;
1051 struct samsung_gpio_chip s3c24xx_gpios[] = {
1052 #ifdef CONFIG_PLAT_S3C24XX
1054 .config = &s3c24xx_gpiocfg_banka,
1056 .base = S3C2410_GPA(0),
1057 .owner = THIS_MODULE,
1060 .direction_input = s3c24xx_gpiolib_banka_input,
1061 .direction_output = s3c24xx_gpiolib_banka_output,
1065 .base = S3C2410_GPB(0),
1066 .owner = THIS_MODULE,
1072 .base = S3C2410_GPC(0),
1073 .owner = THIS_MODULE,
1079 .base = S3C2410_GPD(0),
1080 .owner = THIS_MODULE,
1086 .base = S3C2410_GPE(0),
1088 .owner = THIS_MODULE,
1093 .base = S3C2410_GPF(0),
1094 .owner = THIS_MODULE,
1097 .to_irq = s3c24xx_gpiolib_fbank_to_irq,
1100 .irq_base = IRQ_EINT8,
1102 .base = S3C2410_GPG(0),
1103 .owner = THIS_MODULE,
1106 .to_irq = samsung_gpiolib_to_irq,
1110 .base = S3C2410_GPH(0),
1111 .owner = THIS_MODULE,
1116 /* GPIOS for the S3C2443 and later devices. */
1118 .base = S3C2440_GPJCON,
1120 .base = S3C2410_GPJ(0),
1121 .owner = THIS_MODULE,
1126 .base = S3C2443_GPKCON,
1128 .base = S3C2410_GPK(0),
1129 .owner = THIS_MODULE,
1134 .base = S3C2443_GPLCON,
1136 .base = S3C2410_GPL(0),
1137 .owner = THIS_MODULE,
1142 .base = S3C2443_GPMCON,
1144 .base = S3C2410_GPM(0),
1145 .owner = THIS_MODULE,
1154 * GPIO bank summary:
1156 * Bank GPIOs Style SlpCon ExtInt Group
1162 * F 16 2Bit Yes 4 [1]
1164 * H 10 4Bit[2] Yes 6
1165 * I 16 2Bit Yes None
1166 * J 12 2Bit Yes None
1167 * K 16 4Bit[2] No None
1168 * L 15 4Bit[2] No None
1169 * M 6 4Bit No IRQ_EINT
1170 * N 16 2Bit No IRQ_EINT
1175 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1176 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1179 static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
1180 #ifdef CONFIG_ARCH_S3C64XX
1183 .base = S3C64XX_GPA(0),
1184 .ngpio = S3C64XX_GPIO_A_NR,
1189 .base = S3C64XX_GPB(0),
1190 .ngpio = S3C64XX_GPIO_B_NR,
1195 .base = S3C64XX_GPC(0),
1196 .ngpio = S3C64XX_GPIO_C_NR,
1201 .base = S3C64XX_GPD(0),
1202 .ngpio = S3C64XX_GPIO_D_NR,
1206 .config = &samsung_gpio_cfgs[0],
1208 .base = S3C64XX_GPE(0),
1209 .ngpio = S3C64XX_GPIO_E_NR,
1213 .base = S3C64XX_GPG_BASE,
1215 .base = S3C64XX_GPG(0),
1216 .ngpio = S3C64XX_GPIO_G_NR,
1220 .base = S3C64XX_GPM_BASE,
1221 .config = &samsung_gpio_cfgs[1],
1223 .base = S3C64XX_GPM(0),
1224 .ngpio = S3C64XX_GPIO_M_NR,
1226 .to_irq = s3c64xx_gpiolib_mbank_to_irq,
1232 static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
1233 #ifdef CONFIG_ARCH_S3C64XX
1235 .base = S3C64XX_GPH_BASE + 0x4,
1237 .base = S3C64XX_GPH(0),
1238 .ngpio = S3C64XX_GPIO_H_NR,
1242 .base = S3C64XX_GPK_BASE + 0x4,
1243 .config = &samsung_gpio_cfgs[0],
1245 .base = S3C64XX_GPK(0),
1246 .ngpio = S3C64XX_GPIO_K_NR,
1250 .base = S3C64XX_GPL_BASE + 0x4,
1251 .config = &samsung_gpio_cfgs[1],
1253 .base = S3C64XX_GPL(0),
1254 .ngpio = S3C64XX_GPIO_L_NR,
1256 .to_irq = s3c64xx_gpiolib_lbank_to_irq,
1262 static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = {
1263 #ifdef CONFIG_ARCH_S3C64XX
1265 .base = S3C64XX_GPF_BASE,
1266 .config = &samsung_gpio_cfgs[6],
1268 .base = S3C64XX_GPF(0),
1269 .ngpio = S3C64XX_GPIO_F_NR,
1273 .config = &samsung_gpio_cfgs[7],
1275 .base = S3C64XX_GPI(0),
1276 .ngpio = S3C64XX_GPIO_I_NR,
1280 .config = &samsung_gpio_cfgs[7],
1282 .base = S3C64XX_GPJ(0),
1283 .ngpio = S3C64XX_GPIO_J_NR,
1287 .config = &samsung_gpio_cfgs[6],
1289 .base = S3C64XX_GPO(0),
1290 .ngpio = S3C64XX_GPIO_O_NR,
1294 .config = &samsung_gpio_cfgs[6],
1296 .base = S3C64XX_GPP(0),
1297 .ngpio = S3C64XX_GPIO_P_NR,
1301 .config = &samsung_gpio_cfgs[6],
1303 .base = S3C64XX_GPQ(0),
1304 .ngpio = S3C64XX_GPIO_Q_NR,
1308 .base = S3C64XX_GPN_BASE,
1309 .irq_base = IRQ_EINT(0),
1310 .config = &samsung_gpio_cfgs[5],
1312 .base = S3C64XX_GPN(0),
1313 .ngpio = S3C64XX_GPIO_N_NR,
1315 .to_irq = samsung_gpiolib_to_irq,
1322 * S5P6440 GPIO bank summary:
1324 * Bank GPIOs Style SlpCon ExtInt Group
1328 * F 2 2Bit Yes 4 [1]
1330 * H 10 4Bit[2] Yes 6
1331 * I 16 2Bit Yes None
1332 * J 12 2Bit Yes None
1333 * N 16 2Bit No IRQ_EINT
1335 * R 15 4Bit[2] Yes 8
1338 static struct samsung_gpio_chip s5p6440_gpios_4bit[] = {
1339 #ifdef CONFIG_CPU_S5P6440
1342 .base = S5P6440_GPA(0),
1343 .ngpio = S5P6440_GPIO_A_NR,
1348 .base = S5P6440_GPB(0),
1349 .ngpio = S5P6440_GPIO_B_NR,
1354 .base = S5P6440_GPC(0),
1355 .ngpio = S5P6440_GPIO_C_NR,
1359 .base = S5P64X0_GPG_BASE,
1361 .base = S5P6440_GPG(0),
1362 .ngpio = S5P6440_GPIO_G_NR,
1369 static struct samsung_gpio_chip s5p6440_gpios_4bit2[] = {
1370 #ifdef CONFIG_CPU_S5P6440
1372 .base = S5P64X0_GPH_BASE + 0x4,
1374 .base = S5P6440_GPH(0),
1375 .ngpio = S5P6440_GPIO_H_NR,
1382 static struct samsung_gpio_chip s5p6440_gpios_rbank[] = {
1383 #ifdef CONFIG_CPU_S5P6440
1385 .base = S5P64X0_GPR_BASE + 0x4,
1386 .config = &s5p64x0_gpio_cfg_rbank,
1388 .base = S5P6440_GPR(0),
1389 .ngpio = S5P6440_GPIO_R_NR,
1396 static struct samsung_gpio_chip s5p6440_gpios_2bit[] = {
1397 #ifdef CONFIG_CPU_S5P6440
1399 .base = S5P64X0_GPF_BASE,
1400 .config = &samsung_gpio_cfgs[6],
1402 .base = S5P6440_GPF(0),
1403 .ngpio = S5P6440_GPIO_F_NR,
1407 .base = S5P64X0_GPI_BASE,
1408 .config = &samsung_gpio_cfgs[4],
1410 .base = S5P6440_GPI(0),
1411 .ngpio = S5P6440_GPIO_I_NR,
1415 .base = S5P64X0_GPJ_BASE,
1416 .config = &samsung_gpio_cfgs[4],
1418 .base = S5P6440_GPJ(0),
1419 .ngpio = S5P6440_GPIO_J_NR,
1423 .base = S5P64X0_GPN_BASE,
1424 .config = &samsung_gpio_cfgs[5],
1426 .base = S5P6440_GPN(0),
1427 .ngpio = S5P6440_GPIO_N_NR,
1431 .base = S5P64X0_GPP_BASE,
1432 .config = &samsung_gpio_cfgs[6],
1434 .base = S5P6440_GPP(0),
1435 .ngpio = S5P6440_GPIO_P_NR,
1443 * S5P6450 GPIO bank summary:
1445 * Bank GPIOs Style SlpCon ExtInt Group
1451 * G 14 4Bit[2] Yes 5
1452 * H 10 4Bit[2] Yes 6
1453 * I 16 2Bit Yes None
1454 * J 12 2Bit Yes None
1456 * N 16 2Bit No IRQ_EINT
1458 * Q 14 2Bit Yes None
1459 * R 15 4Bit[2] Yes None
1462 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1463 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1466 static struct samsung_gpio_chip s5p6450_gpios_4bit[] = {
1467 #ifdef CONFIG_CPU_S5P6450
1470 .base = S5P6450_GPA(0),
1471 .ngpio = S5P6450_GPIO_A_NR,
1476 .base = S5P6450_GPB(0),
1477 .ngpio = S5P6450_GPIO_B_NR,
1482 .base = S5P6450_GPC(0),
1483 .ngpio = S5P6450_GPIO_C_NR,
1488 .base = S5P6450_GPD(0),
1489 .ngpio = S5P6450_GPIO_D_NR,
1493 .base = S5P6450_GPK_BASE,
1495 .base = S5P6450_GPK(0),
1496 .ngpio = S5P6450_GPIO_K_NR,
1503 static struct samsung_gpio_chip s5p6450_gpios_4bit2[] = {
1504 #ifdef CONFIG_CPU_S5P6450
1506 .base = S5P64X0_GPG_BASE + 0x4,
1508 .base = S5P6450_GPG(0),
1509 .ngpio = S5P6450_GPIO_G_NR,
1513 .base = S5P64X0_GPH_BASE + 0x4,
1515 .base = S5P6450_GPH(0),
1516 .ngpio = S5P6450_GPIO_H_NR,
1523 static struct samsung_gpio_chip s5p6450_gpios_rbank[] = {
1524 #ifdef CONFIG_CPU_S5P6450
1526 .base = S5P64X0_GPR_BASE + 0x4,
1527 .config = &s5p64x0_gpio_cfg_rbank,
1529 .base = S5P6450_GPR(0),
1530 .ngpio = S5P6450_GPIO_R_NR,
1537 static struct samsung_gpio_chip s5p6450_gpios_2bit[] = {
1538 #ifdef CONFIG_CPU_S5P6450
1540 .base = S5P64X0_GPF_BASE,
1541 .config = &samsung_gpio_cfgs[6],
1543 .base = S5P6450_GPF(0),
1544 .ngpio = S5P6450_GPIO_F_NR,
1548 .base = S5P64X0_GPI_BASE,
1549 .config = &samsung_gpio_cfgs[4],
1551 .base = S5P6450_GPI(0),
1552 .ngpio = S5P6450_GPIO_I_NR,
1556 .base = S5P64X0_GPJ_BASE,
1557 .config = &samsung_gpio_cfgs[4],
1559 .base = S5P6450_GPJ(0),
1560 .ngpio = S5P6450_GPIO_J_NR,
1564 .base = S5P64X0_GPN_BASE,
1565 .config = &samsung_gpio_cfgs[5],
1567 .base = S5P6450_GPN(0),
1568 .ngpio = S5P6450_GPIO_N_NR,
1572 .base = S5P64X0_GPP_BASE,
1573 .config = &samsung_gpio_cfgs[6],
1575 .base = S5P6450_GPP(0),
1576 .ngpio = S5P6450_GPIO_P_NR,
1580 .base = S5P6450_GPQ_BASE,
1581 .config = &samsung_gpio_cfgs[5],
1583 .base = S5P6450_GPQ(0),
1584 .ngpio = S5P6450_GPIO_Q_NR,
1588 .base = S5P6450_GPS_BASE,
1589 .config = &samsung_gpio_cfgs[6],
1591 .base = S5P6450_GPS(0),
1592 .ngpio = S5P6450_GPIO_S_NR,
1600 * S5PC100 GPIO bank summary:
1602 * Bank GPIOs Style INT Type
1603 * A0 8 4Bit GPIO_INT0
1604 * A1 5 4Bit GPIO_INT1
1605 * B 8 4Bit GPIO_INT2
1606 * C 5 4Bit GPIO_INT3
1607 * D 7 4Bit GPIO_INT4
1608 * E0 8 4Bit GPIO_INT5
1609 * E1 6 4Bit GPIO_INT6
1610 * F0 8 4Bit GPIO_INT7
1611 * F1 8 4Bit GPIO_INT8
1612 * F2 8 4Bit GPIO_INT9
1613 * F3 4 4Bit GPIO_INT10
1614 * G0 8 4Bit GPIO_INT11
1615 * G1 3 4Bit GPIO_INT12
1616 * G2 7 4Bit GPIO_INT13
1617 * G3 7 4Bit GPIO_INT14
1618 * H0 8 4Bit WKUP_INT
1619 * H1 8 4Bit WKUP_INT
1620 * H2 8 4Bit WKUP_INT
1621 * H3 8 4Bit WKUP_INT
1622 * I 8 4Bit GPIO_INT15
1623 * J0 8 4Bit GPIO_INT16
1624 * J1 5 4Bit GPIO_INT17
1625 * J2 8 4Bit GPIO_INT18
1626 * J3 8 4Bit GPIO_INT19
1627 * J4 4 4Bit GPIO_INT20
1638 static struct samsung_gpio_chip s5pc100_gpios_4bit[] = {
1639 #ifdef CONFIG_CPU_S5PC100
1642 .base = S5PC100_GPA0(0),
1643 .ngpio = S5PC100_GPIO_A0_NR,
1648 .base = S5PC100_GPA1(0),
1649 .ngpio = S5PC100_GPIO_A1_NR,
1654 .base = S5PC100_GPB(0),
1655 .ngpio = S5PC100_GPIO_B_NR,
1660 .base = S5PC100_GPC(0),
1661 .ngpio = S5PC100_GPIO_C_NR,
1666 .base = S5PC100_GPD(0),
1667 .ngpio = S5PC100_GPIO_D_NR,
1672 .base = S5PC100_GPE0(0),
1673 .ngpio = S5PC100_GPIO_E0_NR,
1678 .base = S5PC100_GPE1(0),
1679 .ngpio = S5PC100_GPIO_E1_NR,
1684 .base = S5PC100_GPF0(0),
1685 .ngpio = S5PC100_GPIO_F0_NR,
1690 .base = S5PC100_GPF1(0),
1691 .ngpio = S5PC100_GPIO_F1_NR,
1696 .base = S5PC100_GPF2(0),
1697 .ngpio = S5PC100_GPIO_F2_NR,
1702 .base = S5PC100_GPF3(0),
1703 .ngpio = S5PC100_GPIO_F3_NR,
1708 .base = S5PC100_GPG0(0),
1709 .ngpio = S5PC100_GPIO_G0_NR,
1714 .base = S5PC100_GPG1(0),
1715 .ngpio = S5PC100_GPIO_G1_NR,
1720 .base = S5PC100_GPG2(0),
1721 .ngpio = S5PC100_GPIO_G2_NR,
1726 .base = S5PC100_GPG3(0),
1727 .ngpio = S5PC100_GPIO_G3_NR,
1732 .base = S5PC100_GPI(0),
1733 .ngpio = S5PC100_GPIO_I_NR,
1738 .base = S5PC100_GPJ0(0),
1739 .ngpio = S5PC100_GPIO_J0_NR,
1744 .base = S5PC100_GPJ1(0),
1745 .ngpio = S5PC100_GPIO_J1_NR,
1750 .base = S5PC100_GPJ2(0),
1751 .ngpio = S5PC100_GPIO_J2_NR,
1756 .base = S5PC100_GPJ3(0),
1757 .ngpio = S5PC100_GPIO_J3_NR,
1762 .base = S5PC100_GPJ4(0),
1763 .ngpio = S5PC100_GPIO_J4_NR,
1768 .base = S5PC100_GPK0(0),
1769 .ngpio = S5PC100_GPIO_K0_NR,
1774 .base = S5PC100_GPK1(0),
1775 .ngpio = S5PC100_GPIO_K1_NR,
1780 .base = S5PC100_GPK2(0),
1781 .ngpio = S5PC100_GPIO_K2_NR,
1786 .base = S5PC100_GPK3(0),
1787 .ngpio = S5PC100_GPIO_K3_NR,
1792 .base = S5PC100_GPL0(0),
1793 .ngpio = S5PC100_GPIO_L0_NR,
1798 .base = S5PC100_GPL1(0),
1799 .ngpio = S5PC100_GPIO_L1_NR,
1804 .base = S5PC100_GPL2(0),
1805 .ngpio = S5PC100_GPIO_L2_NR,
1810 .base = S5PC100_GPL3(0),
1811 .ngpio = S5PC100_GPIO_L3_NR,
1816 .base = S5PC100_GPL4(0),
1817 .ngpio = S5PC100_GPIO_L4_NR,
1821 .base = (S5P_VA_GPIO + 0xC00),
1822 .irq_base = IRQ_EINT(0),
1824 .base = S5PC100_GPH0(0),
1825 .ngpio = S5PC100_GPIO_H0_NR,
1827 .to_irq = samsung_gpiolib_to_irq,
1830 .base = (S5P_VA_GPIO + 0xC20),
1831 .irq_base = IRQ_EINT(8),
1833 .base = S5PC100_GPH1(0),
1834 .ngpio = S5PC100_GPIO_H1_NR,
1836 .to_irq = samsung_gpiolib_to_irq,
1839 .base = (S5P_VA_GPIO + 0xC40),
1840 .irq_base = IRQ_EINT(16),
1842 .base = S5PC100_GPH2(0),
1843 .ngpio = S5PC100_GPIO_H2_NR,
1845 .to_irq = samsung_gpiolib_to_irq,
1848 .base = (S5P_VA_GPIO + 0xC60),
1849 .irq_base = IRQ_EINT(24),
1851 .base = S5PC100_GPH3(0),
1852 .ngpio = S5PC100_GPIO_H3_NR,
1854 .to_irq = samsung_gpiolib_to_irq,
1861 * Followings are the gpio banks in S5PV210/S5PC110
1863 * The 'config' member when left to NULL, is initialized to the default
1864 * structure samsung_gpio_cfgs[3] in the init function below.
1866 * The 'base' member is also initialized in the init function below.
1867 * Note: The initialization of 'base' member of samsung_gpio_chip structure
1868 * uses the above macro and depends on the banks being listed in order here.
1871 static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
1872 #ifdef CONFIG_CPU_S5PV210
1875 .base = S5PV210_GPA0(0),
1876 .ngpio = S5PV210_GPIO_A0_NR,
1881 .base = S5PV210_GPA1(0),
1882 .ngpio = S5PV210_GPIO_A1_NR,
1887 .base = S5PV210_GPB(0),
1888 .ngpio = S5PV210_GPIO_B_NR,
1893 .base = S5PV210_GPC0(0),
1894 .ngpio = S5PV210_GPIO_C0_NR,
1899 .base = S5PV210_GPC1(0),
1900 .ngpio = S5PV210_GPIO_C1_NR,
1905 .base = S5PV210_GPD0(0),
1906 .ngpio = S5PV210_GPIO_D0_NR,
1911 .base = S5PV210_GPD1(0),
1912 .ngpio = S5PV210_GPIO_D1_NR,
1917 .base = S5PV210_GPE0(0),
1918 .ngpio = S5PV210_GPIO_E0_NR,
1923 .base = S5PV210_GPE1(0),
1924 .ngpio = S5PV210_GPIO_E1_NR,
1929 .base = S5PV210_GPF0(0),
1930 .ngpio = S5PV210_GPIO_F0_NR,
1935 .base = S5PV210_GPF1(0),
1936 .ngpio = S5PV210_GPIO_F1_NR,
1941 .base = S5PV210_GPF2(0),
1942 .ngpio = S5PV210_GPIO_F2_NR,
1947 .base = S5PV210_GPF3(0),
1948 .ngpio = S5PV210_GPIO_F3_NR,
1953 .base = S5PV210_GPG0(0),
1954 .ngpio = S5PV210_GPIO_G0_NR,
1959 .base = S5PV210_GPG1(0),
1960 .ngpio = S5PV210_GPIO_G1_NR,
1965 .base = S5PV210_GPG2(0),
1966 .ngpio = S5PV210_GPIO_G2_NR,
1971 .base = S5PV210_GPG3(0),
1972 .ngpio = S5PV210_GPIO_G3_NR,
1977 .base = S5PV210_GPI(0),
1978 .ngpio = S5PV210_GPIO_I_NR,
1983 .base = S5PV210_GPJ0(0),
1984 .ngpio = S5PV210_GPIO_J0_NR,
1989 .base = S5PV210_GPJ1(0),
1990 .ngpio = S5PV210_GPIO_J1_NR,
1995 .base = S5PV210_GPJ2(0),
1996 .ngpio = S5PV210_GPIO_J2_NR,
2001 .base = S5PV210_GPJ3(0),
2002 .ngpio = S5PV210_GPIO_J3_NR,
2007 .base = S5PV210_GPJ4(0),
2008 .ngpio = S5PV210_GPIO_J4_NR,
2013 .base = S5PV210_MP01(0),
2014 .ngpio = S5PV210_GPIO_MP01_NR,
2019 .base = S5PV210_MP02(0),
2020 .ngpio = S5PV210_GPIO_MP02_NR,
2025 .base = S5PV210_MP03(0),
2026 .ngpio = S5PV210_GPIO_MP03_NR,
2031 .base = S5PV210_MP04(0),
2032 .ngpio = S5PV210_GPIO_MP04_NR,
2037 .base = S5PV210_MP05(0),
2038 .ngpio = S5PV210_GPIO_MP05_NR,
2042 .base = (S5P_VA_GPIO + 0xC00),
2043 .irq_base = IRQ_EINT(0),
2045 .base = S5PV210_GPH0(0),
2046 .ngpio = S5PV210_GPIO_H0_NR,
2048 .to_irq = samsung_gpiolib_to_irq,
2051 .base = (S5P_VA_GPIO + 0xC20),
2052 .irq_base = IRQ_EINT(8),
2054 .base = S5PV210_GPH1(0),
2055 .ngpio = S5PV210_GPIO_H1_NR,
2057 .to_irq = samsung_gpiolib_to_irq,
2060 .base = (S5P_VA_GPIO + 0xC40),
2061 .irq_base = IRQ_EINT(16),
2063 .base = S5PV210_GPH2(0),
2064 .ngpio = S5PV210_GPIO_H2_NR,
2066 .to_irq = samsung_gpiolib_to_irq,
2069 .base = (S5P_VA_GPIO + 0xC60),
2070 .irq_base = IRQ_EINT(24),
2072 .base = S5PV210_GPH3(0),
2073 .ngpio = S5PV210_GPIO_H3_NR,
2075 .to_irq = samsung_gpiolib_to_irq,
2081 /* TODO: cleanup soc_is_* */
2082 static __init int samsung_gpiolib_init(void)
2084 struct samsung_gpio_chip *chip;
2089 * Currently there are two drivers that can provide GPIO support for
2090 * Samsung SoCs. For device tree enabled platforms, the new
2091 * pinctrl-samsung driver is used, providing both GPIO and pin control
2092 * interfaces. For legacy (non-DT) platforms this driver is used.
2094 if (of_have_populated_dt())
2097 samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
2099 if (soc_is_s3c24xx()) {
2100 s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
2101 ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
2102 } else if (soc_is_s3c64xx()) {
2103 samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
2104 ARRAY_SIZE(s3c64xx_gpios_2bit),
2105 S3C64XX_VA_GPIO + 0xE0, 0x20);
2106 samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit,
2107 ARRAY_SIZE(s3c64xx_gpios_4bit),
2109 samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
2110 ARRAY_SIZE(s3c64xx_gpios_4bit2));
2111 } else if (soc_is_s5p6440()) {
2112 samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit,
2113 ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0);
2114 samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit,
2115 ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO);
2116 samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2,
2117 ARRAY_SIZE(s5p6440_gpios_4bit2));
2118 s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank,
2119 ARRAY_SIZE(s5p6440_gpios_rbank));
2120 } else if (soc_is_s5p6450()) {
2121 samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit,
2122 ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0);
2123 samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit,
2124 ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO);
2125 samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2,
2126 ARRAY_SIZE(s5p6450_gpios_4bit2));
2127 s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank,
2128 ARRAY_SIZE(s5p6450_gpios_rbank));
2129 } else if (soc_is_s5pc100()) {
2131 chip = s5pc100_gpios_4bit;
2132 nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
2134 for (i = 0; i < nr_chips; i++, chip++) {
2135 if (!chip->config) {
2136 chip->config = &samsung_gpio_cfgs[3];
2137 chip->group = group++;
2140 samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO);
2141 #if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT)
2142 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
2144 } else if (soc_is_s5pv210()) {
2146 chip = s5pv210_gpios_4bit;
2147 nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
2149 for (i = 0; i < nr_chips; i++, chip++) {
2150 if (!chip->config) {
2151 chip->config = &samsung_gpio_cfgs[3];
2152 chip->group = group++;
2155 samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO);
2156 #if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT)
2157 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
2160 WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
2166 core_initcall(samsung_gpiolib_init);
2168 int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
2170 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2171 unsigned long flags;
2178 offset = pin - chip->chip.base;
2180 samsung_gpio_lock(chip, flags);
2181 ret = samsung_gpio_do_setcfg(chip, offset, config);
2182 samsung_gpio_unlock(chip, flags);
2186 EXPORT_SYMBOL(s3c_gpio_cfgpin);
2188 int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
2193 for (; nr > 0; nr--, start++) {
2194 ret = s3c_gpio_cfgpin(start, cfg);
2201 EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
2203 int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
2204 unsigned int cfg, samsung_gpio_pull_t pull)
2208 for (; nr > 0; nr--, start++) {
2209 s3c_gpio_setpull(start, pull);
2210 ret = s3c_gpio_cfgpin(start, cfg);
2217 EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
2219 unsigned s3c_gpio_getcfg(unsigned int pin)
2221 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2222 unsigned long flags;
2227 offset = pin - chip->chip.base;
2229 samsung_gpio_lock(chip, flags);
2230 ret = samsung_gpio_do_getcfg(chip, offset);
2231 samsung_gpio_unlock(chip, flags);
2236 EXPORT_SYMBOL(s3c_gpio_getcfg);
2238 int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull)
2240 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2241 unsigned long flags;
2247 offset = pin - chip->chip.base;
2249 samsung_gpio_lock(chip, flags);
2250 ret = samsung_gpio_do_setpull(chip, offset, pull);
2251 samsung_gpio_unlock(chip, flags);
2255 EXPORT_SYMBOL(s3c_gpio_setpull);
2257 samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
2259 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2260 unsigned long flags;
2265 offset = pin - chip->chip.base;
2267 samsung_gpio_lock(chip, flags);
2268 pup = samsung_gpio_do_getpull(chip, offset);
2269 samsung_gpio_unlock(chip, flags);
2272 return (__force samsung_gpio_pull_t)pup;
2274 EXPORT_SYMBOL(s3c_gpio_getpull);
2276 #ifdef CONFIG_S5P_GPIO_DRVSTR
2277 s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
2279 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2288 off = pin - chip->chip.base;
2290 reg = chip->base + 0x0C;
2292 drvstr = __raw_readl(reg);
2293 drvstr = drvstr >> shift;
2296 return (__force s5p_gpio_drvstr_t)drvstr;
2298 EXPORT_SYMBOL(s5p_gpio_get_drvstr);
2300 int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
2302 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2311 off = pin - chip->chip.base;
2313 reg = chip->base + 0x0C;
2315 tmp = __raw_readl(reg);
2316 tmp &= ~(0x3 << shift);
2317 tmp |= drvstr << shift;
2319 __raw_writel(tmp, reg);
2323 EXPORT_SYMBOL(s5p_gpio_set_drvstr);
2324 #endif /* CONFIG_S5P_GPIO_DRVSTR */
2326 #ifdef CONFIG_PLAT_S3C24XX
2327 unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
2329 unsigned long flags;
2330 unsigned long misccr;
2332 local_irq_save(flags);
2333 misccr = __raw_readl(S3C24XX_MISCCR);
2336 __raw_writel(misccr, S3C24XX_MISCCR);
2337 local_irq_restore(flags);
2341 EXPORT_SYMBOL(s3c2410_modify_misccr);