Lines Matching +full:off +full:- +full:chip
1 // SPDX-License-Identifier: GPL-2.0-only
120 { "irq-gpios", &pca953x_irq_gpios, 1, ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER },
132 ret = acpi_dev_gpio_irq_get_by(ACPI_COMPANION(dev), "irq-gpios", 0); in pca953x_acpi_get_irq()
146 * relative. Since first controller (gpio-sch.c) and
147 * second (gpio-dwapb.c) are at the fixed bases, we may
169 #define NBANK(chip) DIV_ROUND_UP(chip->gpio_chip.ngpio, BANK_SZ) argument
216 static int pca953x_bank_shift(struct pca953x_chip *chip) in pca953x_bank_shift() argument
218 return fls((chip->gpio_chip.ngpio - 1) / BANK_SZ); in pca953x_bank_shift()
240 * - Standard set, below 0x40, each port can be replicated up to 8 times
241 * - PCA953x standard
246 * - PCA957x with mixed up registers
253 * - Extended set, above 0x40, often chip specific.
254 * - PCAL6524/PCAL9555A with custom PCAL IRQ handling:
256 * Pull-up/pull-down enable reg 0x40 + 3 * bank_size RW
257 * Pull-up/pull-down select reg 0x40 + 4 * bank_size RW
261 * - Registers with bit 0x80 set, the AI bit
266 static bool pca953x_check_register(struct pca953x_chip *chip, unsigned int reg, in pca953x_check_register() argument
269 int bank_shift = pca953x_bank_shift(chip); in pca953x_check_register()
271 int offset = reg & (BIT(bank_shift) - 1); in pca953x_check_register()
275 if (!(chip->driver_data & PCA_PCAL)) in pca953x_check_register()
285 if (offset >= NBANK(chip)) in pca953x_check_register()
293 struct pca953x_chip *chip = dev_get_drvdata(dev); in pca953x_readable_register() local
296 if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) { in pca953x_readable_register()
305 if (chip->driver_data & PCA_PCAL) { in pca953x_readable_register()
311 return pca953x_check_register(chip, reg, bank); in pca953x_readable_register()
316 struct pca953x_chip *chip = dev_get_drvdata(dev); in pca953x_writeable_register() local
319 if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) { in pca953x_writeable_register()
327 if (chip->driver_data & PCA_PCAL) in pca953x_writeable_register()
331 return pca953x_check_register(chip, reg, bank); in pca953x_writeable_register()
336 struct pca953x_chip *chip = dev_get_drvdata(dev); in pca953x_volatile_register() local
339 if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) in pca953x_volatile_register()
344 if (chip->driver_data & PCA_PCAL) in pca953x_volatile_register()
347 return pca953x_check_register(chip, reg, bank); in pca953x_volatile_register()
379 static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off) in pca953x_recalc_addr() argument
381 int bank_shift = pca953x_bank_shift(chip); in pca953x_recalc_addr()
384 u8 regaddr = pinctrl | addr | (off / BANK_SZ); in pca953x_recalc_addr()
389 static int pca953x_write_regs(struct pca953x_chip *chip, int reg, unsigned long *val) in pca953x_write_regs() argument
391 u8 regaddr = pca953x_recalc_addr(chip, reg, 0); in pca953x_write_regs()
395 for (i = 0; i < NBANK(chip); i++) in pca953x_write_regs()
398 ret = regmap_bulk_write(chip->regmap, regaddr, value, NBANK(chip)); in pca953x_write_regs()
400 dev_err(&chip->client->dev, "failed writing register\n"); in pca953x_write_regs()
407 static int pca953x_read_regs(struct pca953x_chip *chip, int reg, unsigned long *val) in pca953x_read_regs() argument
409 u8 regaddr = pca953x_recalc_addr(chip, reg, 0); in pca953x_read_regs()
413 ret = regmap_bulk_read(chip->regmap, regaddr, value, NBANK(chip)); in pca953x_read_regs()
415 dev_err(&chip->client->dev, "failed reading register\n"); in pca953x_read_regs()
419 for (i = 0; i < NBANK(chip); i++) in pca953x_read_regs()
425 static int pca953x_gpio_direction_input(struct gpio_chip *gc, unsigned off) in pca953x_gpio_direction_input() argument
427 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_gpio_direction_input() local
428 u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off); in pca953x_gpio_direction_input()
429 u8 bit = BIT(off % BANK_SZ); in pca953x_gpio_direction_input()
432 mutex_lock(&chip->i2c_lock); in pca953x_gpio_direction_input()
433 ret = regmap_write_bits(chip->regmap, dirreg, bit, bit); in pca953x_gpio_direction_input()
434 mutex_unlock(&chip->i2c_lock); in pca953x_gpio_direction_input()
439 unsigned off, int val) in pca953x_gpio_direction_output() argument
441 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_gpio_direction_output() local
442 u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off); in pca953x_gpio_direction_output()
443 u8 outreg = pca953x_recalc_addr(chip, chip->regs->output, off); in pca953x_gpio_direction_output()
444 u8 bit = BIT(off % BANK_SZ); in pca953x_gpio_direction_output()
447 mutex_lock(&chip->i2c_lock); in pca953x_gpio_direction_output()
449 ret = regmap_write_bits(chip->regmap, outreg, bit, val ? bit : 0); in pca953x_gpio_direction_output()
454 ret = regmap_write_bits(chip->regmap, dirreg, bit, 0); in pca953x_gpio_direction_output()
456 mutex_unlock(&chip->i2c_lock); in pca953x_gpio_direction_output()
460 static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off) in pca953x_gpio_get_value() argument
462 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_gpio_get_value() local
463 u8 inreg = pca953x_recalc_addr(chip, chip->regs->input, off); in pca953x_gpio_get_value()
464 u8 bit = BIT(off % BANK_SZ); in pca953x_gpio_get_value()
468 mutex_lock(&chip->i2c_lock); in pca953x_gpio_get_value()
469 ret = regmap_read(chip->regmap, inreg, ®_val); in pca953x_gpio_get_value()
470 mutex_unlock(&chip->i2c_lock); in pca953x_gpio_get_value()
477 static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val) in pca953x_gpio_set_value() argument
479 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_gpio_set_value() local
480 u8 outreg = pca953x_recalc_addr(chip, chip->regs->output, off); in pca953x_gpio_set_value()
481 u8 bit = BIT(off % BANK_SZ); in pca953x_gpio_set_value()
483 mutex_lock(&chip->i2c_lock); in pca953x_gpio_set_value()
484 regmap_write_bits(chip->regmap, outreg, bit, val ? bit : 0); in pca953x_gpio_set_value()
485 mutex_unlock(&chip->i2c_lock); in pca953x_gpio_set_value()
488 static int pca953x_gpio_get_direction(struct gpio_chip *gc, unsigned off) in pca953x_gpio_get_direction() argument
490 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_gpio_get_direction() local
491 u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off); in pca953x_gpio_get_direction()
492 u8 bit = BIT(off % BANK_SZ); in pca953x_gpio_get_direction()
496 mutex_lock(&chip->i2c_lock); in pca953x_gpio_get_direction()
497 ret = regmap_read(chip->regmap, dirreg, ®_val); in pca953x_gpio_get_direction()
498 mutex_unlock(&chip->i2c_lock); in pca953x_gpio_get_direction()
511 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_gpio_get_multiple() local
515 mutex_lock(&chip->i2c_lock); in pca953x_gpio_get_multiple()
516 ret = pca953x_read_regs(chip, chip->regs->input, reg_val); in pca953x_gpio_get_multiple()
517 mutex_unlock(&chip->i2c_lock); in pca953x_gpio_get_multiple()
521 bitmap_replace(bits, bits, reg_val, mask, gc->ngpio); in pca953x_gpio_get_multiple()
528 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_gpio_set_multiple() local
532 mutex_lock(&chip->i2c_lock); in pca953x_gpio_set_multiple()
533 ret = pca953x_read_regs(chip, chip->regs->output, reg_val); in pca953x_gpio_set_multiple()
537 bitmap_replace(reg_val, reg_val, bits, mask, gc->ngpio); in pca953x_gpio_set_multiple()
539 pca953x_write_regs(chip, chip->regs->output, reg_val); in pca953x_gpio_set_multiple()
541 mutex_unlock(&chip->i2c_lock); in pca953x_gpio_set_multiple()
544 static int pca953x_gpio_set_pull_up_down(struct pca953x_chip *chip, in pca953x_gpio_set_pull_up_down() argument
548 u8 pull_en_reg = pca953x_recalc_addr(chip, PCAL953X_PULL_EN, offset); in pca953x_gpio_set_pull_up_down()
549 u8 pull_sel_reg = pca953x_recalc_addr(chip, PCAL953X_PULL_SEL, offset); in pca953x_gpio_set_pull_up_down()
554 * pull-up/pull-down configuration requires PCAL extended in pca953x_gpio_set_pull_up_down()
557 if (!(chip->driver_data & PCA_PCAL)) in pca953x_gpio_set_pull_up_down()
558 return -ENOTSUPP; in pca953x_gpio_set_pull_up_down()
560 mutex_lock(&chip->i2c_lock); in pca953x_gpio_set_pull_up_down()
562 /* Configure pull-up/pull-down */ in pca953x_gpio_set_pull_up_down()
564 ret = regmap_write_bits(chip->regmap, pull_sel_reg, bit, bit); in pca953x_gpio_set_pull_up_down()
566 ret = regmap_write_bits(chip->regmap, pull_sel_reg, bit, 0); in pca953x_gpio_set_pull_up_down()
572 /* Disable/Enable pull-up/pull-down */ in pca953x_gpio_set_pull_up_down()
574 ret = regmap_write_bits(chip->regmap, pull_en_reg, bit, 0); in pca953x_gpio_set_pull_up_down()
576 ret = regmap_write_bits(chip->regmap, pull_en_reg, bit, bit); in pca953x_gpio_set_pull_up_down()
579 mutex_unlock(&chip->i2c_lock); in pca953x_gpio_set_pull_up_down()
586 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_gpio_set_config() local
593 return pca953x_gpio_set_pull_up_down(chip, offset, config); in pca953x_gpio_set_config()
595 return -ENOTSUPP; in pca953x_gpio_set_config()
599 static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) in pca953x_setup_gpio() argument
603 gc = &chip->gpio_chip; in pca953x_setup_gpio()
605 gc->direction_input = pca953x_gpio_direction_input; in pca953x_setup_gpio()
606 gc->direction_output = pca953x_gpio_direction_output; in pca953x_setup_gpio()
607 gc->get = pca953x_gpio_get_value; in pca953x_setup_gpio()
608 gc->set = pca953x_gpio_set_value; in pca953x_setup_gpio()
609 gc->get_direction = pca953x_gpio_get_direction; in pca953x_setup_gpio()
610 gc->get_multiple = pca953x_gpio_get_multiple; in pca953x_setup_gpio()
611 gc->set_multiple = pca953x_gpio_set_multiple; in pca953x_setup_gpio()
612 gc->set_config = pca953x_gpio_set_config; in pca953x_setup_gpio()
613 gc->can_sleep = true; in pca953x_setup_gpio()
615 gc->base = chip->gpio_start; in pca953x_setup_gpio()
616 gc->ngpio = gpios; in pca953x_setup_gpio()
617 gc->label = dev_name(&chip->client->dev); in pca953x_setup_gpio()
618 gc->parent = &chip->client->dev; in pca953x_setup_gpio()
619 gc->owner = THIS_MODULE; in pca953x_setup_gpio()
620 gc->names = chip->names; in pca953x_setup_gpio()
627 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_irq_mask() local
630 clear_bit(hwirq, chip->irq_mask); in pca953x_irq_mask()
636 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_irq_unmask() local
639 set_bit(hwirq, chip->irq_mask); in pca953x_irq_unmask()
645 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_irq_set_wake() local
648 atomic_inc(&chip->wakeup_path); in pca953x_irq_set_wake()
650 atomic_dec(&chip->wakeup_path); in pca953x_irq_set_wake()
652 return irq_set_irq_wake(chip->client->irq, on); in pca953x_irq_set_wake()
658 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_irq_bus_lock() local
660 mutex_lock(&chip->irq_lock); in pca953x_irq_bus_lock()
666 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_irq_bus_sync_unlock() local
671 if (chip->driver_data & PCA_PCAL) { in pca953x_irq_bus_sync_unlock()
672 /* Enable latch on interrupt-enabled inputs */ in pca953x_irq_bus_sync_unlock()
673 pca953x_write_regs(chip, PCAL953X_IN_LATCH, chip->irq_mask); in pca953x_irq_bus_sync_unlock()
675 bitmap_complement(irq_mask, chip->irq_mask, gc->ngpio); in pca953x_irq_bus_sync_unlock()
678 pca953x_write_regs(chip, PCAL953X_INT_MASK, irq_mask); in pca953x_irq_bus_sync_unlock()
682 pca953x_read_regs(chip, chip->regs->direction, reg_direction); in pca953x_irq_bus_sync_unlock()
684 bitmap_or(irq_mask, chip->irq_trig_fall, chip->irq_trig_raise, gc->ngpio); in pca953x_irq_bus_sync_unlock()
685 bitmap_complement(reg_direction, reg_direction, gc->ngpio); in pca953x_irq_bus_sync_unlock()
686 bitmap_and(irq_mask, irq_mask, reg_direction, gc->ngpio); in pca953x_irq_bus_sync_unlock()
689 for_each_set_bit(level, irq_mask, gc->ngpio) in pca953x_irq_bus_sync_unlock()
690 pca953x_gpio_direction_input(&chip->gpio_chip, level); in pca953x_irq_bus_sync_unlock()
692 mutex_unlock(&chip->irq_lock); in pca953x_irq_bus_sync_unlock()
698 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_irq_set_type() local
702 dev_err(&chip->client->dev, "irq %d: unsupported type %d\n", in pca953x_irq_set_type()
703 d->irq, type); in pca953x_irq_set_type()
704 return -EINVAL; in pca953x_irq_set_type()
707 assign_bit(hwirq, chip->irq_trig_fall, type & IRQ_TYPE_EDGE_FALLING); in pca953x_irq_set_type()
708 assign_bit(hwirq, chip->irq_trig_raise, type & IRQ_TYPE_EDGE_RISING); in pca953x_irq_set_type()
716 struct pca953x_chip *chip = gpiochip_get_data(gc); in pca953x_irq_shutdown() local
719 clear_bit(hwirq, chip->irq_trig_raise); in pca953x_irq_shutdown()
720 clear_bit(hwirq, chip->irq_trig_fall); in pca953x_irq_shutdown()
723 static bool pca953x_irq_pending(struct pca953x_chip *chip, unsigned long *pending) in pca953x_irq_pending() argument
725 struct gpio_chip *gc = &chip->gpio_chip; in pca953x_irq_pending()
733 if (chip->driver_data & PCA_PCAL) { in pca953x_irq_pending()
735 ret = pca953x_read_regs(chip, PCAL953X_INT_STAT, trigger); in pca953x_irq_pending()
740 ret = pca953x_read_regs(chip, chip->regs->input, cur_stat); in pca953x_irq_pending()
745 bitmap_replace(new_stat, chip->irq_trig_fall, chip->irq_trig_raise, cur_stat, gc->ngpio); in pca953x_irq_pending()
747 bitmap_and(pending, new_stat, trigger, gc->ngpio); in pca953x_irq_pending()
749 return !bitmap_empty(pending, gc->ngpio); in pca953x_irq_pending()
752 ret = pca953x_read_regs(chip, chip->regs->input, cur_stat); in pca953x_irq_pending()
757 pca953x_read_regs(chip, chip->regs->direction, reg_direction); in pca953x_irq_pending()
759 bitmap_copy(old_stat, chip->irq_stat, gc->ngpio); in pca953x_irq_pending()
761 bitmap_and(new_stat, cur_stat, reg_direction, gc->ngpio); in pca953x_irq_pending()
762 bitmap_xor(cur_stat, new_stat, old_stat, gc->ngpio); in pca953x_irq_pending()
763 bitmap_and(trigger, cur_stat, chip->irq_mask, gc->ngpio); in pca953x_irq_pending()
765 if (bitmap_empty(trigger, gc->ngpio)) in pca953x_irq_pending()
768 bitmap_copy(chip->irq_stat, new_stat, gc->ngpio); in pca953x_irq_pending()
770 bitmap_and(cur_stat, chip->irq_trig_fall, old_stat, gc->ngpio); in pca953x_irq_pending()
771 bitmap_and(old_stat, chip->irq_trig_raise, new_stat, gc->ngpio); in pca953x_irq_pending()
772 bitmap_or(new_stat, old_stat, cur_stat, gc->ngpio); in pca953x_irq_pending()
773 bitmap_and(pending, new_stat, trigger, gc->ngpio); in pca953x_irq_pending()
775 return !bitmap_empty(pending, gc->ngpio); in pca953x_irq_pending()
780 struct pca953x_chip *chip = devid; in pca953x_irq_handler() local
781 struct gpio_chip *gc = &chip->gpio_chip; in pca953x_irq_handler()
788 mutex_lock(&chip->i2c_lock); in pca953x_irq_handler()
789 ret = pca953x_irq_pending(chip, pending); in pca953x_irq_handler()
790 mutex_unlock(&chip->i2c_lock); in pca953x_irq_handler()
795 for_each_set_bit(level, pending, gc->ngpio) { in pca953x_irq_handler()
796 int nested_irq = irq_find_mapping(gc->irq.domain, level); in pca953x_irq_handler()
799 dev_warn_ratelimited(gc->parent, "unmapped interrupt %d\n", level); in pca953x_irq_handler()
811 static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) in pca953x_irq_setup() argument
813 struct i2c_client *client = chip->client; in pca953x_irq_setup()
814 struct irq_chip *irq_chip = &chip->irq_chip; in pca953x_irq_setup()
821 ret = pca953x_acpi_get_irq(&client->dev); in pca953x_irq_setup()
823 client->irq = ret; in pca953x_irq_setup()
826 if (!client->irq) in pca953x_irq_setup()
829 if (irq_base == -1) in pca953x_irq_setup()
832 if (!(chip->driver_data & PCA_INT)) in pca953x_irq_setup()
835 ret = pca953x_read_regs(chip, chip->regs->input, irq_stat); in pca953x_irq_setup()
844 pca953x_read_regs(chip, chip->regs->direction, reg_direction); in pca953x_irq_setup()
845 bitmap_and(chip->irq_stat, irq_stat, reg_direction, chip->gpio_chip.ngpio); in pca953x_irq_setup()
846 mutex_init(&chip->irq_lock); in pca953x_irq_setup()
848 irq_chip->name = dev_name(&client->dev); in pca953x_irq_setup()
849 irq_chip->irq_mask = pca953x_irq_mask; in pca953x_irq_setup()
850 irq_chip->irq_unmask = pca953x_irq_unmask; in pca953x_irq_setup()
851 irq_chip->irq_set_wake = pca953x_irq_set_wake; in pca953x_irq_setup()
852 irq_chip->irq_bus_lock = pca953x_irq_bus_lock; in pca953x_irq_setup()
853 irq_chip->irq_bus_sync_unlock = pca953x_irq_bus_sync_unlock; in pca953x_irq_setup()
854 irq_chip->irq_set_type = pca953x_irq_set_type; in pca953x_irq_setup()
855 irq_chip->irq_shutdown = pca953x_irq_shutdown; in pca953x_irq_setup()
857 girq = &chip->gpio_chip.irq; in pca953x_irq_setup()
858 girq->chip = irq_chip; in pca953x_irq_setup()
860 girq->parent_handler = NULL; in pca953x_irq_setup()
861 girq->num_parents = 0; in pca953x_irq_setup()
862 girq->parents = NULL; in pca953x_irq_setup()
863 girq->default_type = IRQ_TYPE_NONE; in pca953x_irq_setup()
864 girq->handler = handle_simple_irq; in pca953x_irq_setup()
865 girq->threaded = true; in pca953x_irq_setup()
866 girq->first = irq_base; /* FIXME: get rid of this */ in pca953x_irq_setup()
868 ret = devm_request_threaded_irq(&client->dev, client->irq, in pca953x_irq_setup()
871 dev_name(&client->dev), chip); in pca953x_irq_setup()
873 dev_err(&client->dev, "failed to request irq %d\n", in pca953x_irq_setup()
874 client->irq); in pca953x_irq_setup()
882 static int pca953x_irq_setup(struct pca953x_chip *chip, in pca953x_irq_setup() argument
885 struct i2c_client *client = chip->client; in pca953x_irq_setup()
887 if (client->irq && irq_base != -1 && (chip->driver_data & PCA_INT)) in pca953x_irq_setup()
888 dev_warn(&client->dev, "interrupt support not compiled in\n"); in pca953x_irq_setup()
894 static int device_pca95xx_init(struct pca953x_chip *chip, u32 invert) in device_pca95xx_init() argument
899 ret = regcache_sync_region(chip->regmap, chip->regs->output, in device_pca95xx_init()
900 chip->regs->output + NBANK(chip)); in device_pca95xx_init()
904 ret = regcache_sync_region(chip->regmap, chip->regs->direction, in device_pca95xx_init()
905 chip->regs->direction + NBANK(chip)); in device_pca95xx_init()
915 ret = pca953x_write_regs(chip, chip->regs->invert, val); in device_pca95xx_init()
920 static int device_pca957x_init(struct pca953x_chip *chip, u32 invert) in device_pca957x_init() argument
926 ret = device_pca95xx_init(chip, invert); in device_pca957x_init()
931 for (i = 0; i < NBANK(chip); i++) in device_pca957x_init()
934 ret = pca953x_write_regs(chip, PCA957X_BKEN, val); in device_pca957x_init()
947 struct pca953x_chip *chip; in pca953x_probe() local
954 chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); in pca953x_probe()
955 if (chip == NULL) in pca953x_probe()
956 return -ENOMEM; in pca953x_probe()
958 pdata = dev_get_platdata(&client->dev); in pca953x_probe()
960 irq_base = pdata->irq_base; in pca953x_probe()
961 chip->gpio_start = pdata->gpio_base; in pca953x_probe()
962 invert = pdata->invert; in pca953x_probe()
963 chip->names = pdata->names; in pca953x_probe()
967 chip->gpio_start = -1; in pca953x_probe()
971 * See if we need to de-assert a reset pin. in pca953x_probe()
973 * There is no known ACPI-enabled platforms that are in pca953x_probe()
977 reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", in pca953x_probe()
983 chip->client = client; in pca953x_probe()
985 reg = devm_regulator_get(&client->dev, "vcc"); in pca953x_probe()
987 return dev_err_probe(&client->dev, PTR_ERR(reg), "reg get err\n"); in pca953x_probe()
991 dev_err(&client->dev, "reg en err: %d\n", ret); in pca953x_probe()
994 chip->regulator = reg; in pca953x_probe()
997 chip->driver_data = i2c_id->driver_data; in pca953x_probe()
1001 match = device_get_match_data(&client->dev); in pca953x_probe()
1003 ret = -ENODEV; in pca953x_probe()
1007 chip->driver_data = (uintptr_t)match; in pca953x_probe()
1010 i2c_set_clientdata(client, chip); in pca953x_probe()
1012 pca953x_setup_gpio(chip, chip->driver_data & PCA_GPIO_MASK); in pca953x_probe()
1014 if (NBANK(chip) > 2 || PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) { in pca953x_probe()
1015 dev_info(&client->dev, "using AI\n"); in pca953x_probe()
1018 dev_info(&client->dev, "using no AI\n"); in pca953x_probe()
1022 chip->regmap = devm_regmap_init_i2c(client, regmap_config); in pca953x_probe()
1023 if (IS_ERR(chip->regmap)) { in pca953x_probe()
1024 ret = PTR_ERR(chip->regmap); in pca953x_probe()
1028 regcache_mark_dirty(chip->regmap); in pca953x_probe()
1030 mutex_init(&chip->i2c_lock); in pca953x_probe()
1032 * In case we have an i2c-mux controlled by a GPIO provided by an in pca953x_probe()
1035 * subclass for chip->i2c_lock. in pca953x_probe()
1038 * false positives when the expander controlling the i2c-mux is on in pca953x_probe()
1044 * applied to all other i2c-controlled GPIO expanders (and potentially in pca953x_probe()
1045 * regmap-i2c). in pca953x_probe()
1047 lockdep_set_subclass(&chip->i2c_lock, in pca953x_probe()
1048 i2c_adapter_depth(client->adapter)); in pca953x_probe()
1051 * we can't share this chip with another i2c master. in pca953x_probe()
1054 if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) { in pca953x_probe()
1055 chip->regs = &pca953x_regs; in pca953x_probe()
1056 ret = device_pca95xx_init(chip, invert); in pca953x_probe()
1058 chip->regs = &pca957x_regs; in pca953x_probe()
1059 ret = device_pca957x_init(chip, invert); in pca953x_probe()
1064 ret = pca953x_irq_setup(chip, irq_base); in pca953x_probe()
1068 ret = devm_gpiochip_add_data(&client->dev, &chip->gpio_chip, chip); in pca953x_probe()
1072 if (pdata && pdata->setup) { in pca953x_probe()
1073 ret = pdata->setup(client, chip->gpio_chip.base, in pca953x_probe()
1074 chip->gpio_chip.ngpio, pdata->context); in pca953x_probe()
1076 dev_warn(&client->dev, "setup failed, %d\n", ret); in pca953x_probe()
1082 regulator_disable(chip->regulator); in pca953x_probe()
1088 struct pca953x_platform_data *pdata = dev_get_platdata(&client->dev); in pca953x_remove()
1089 struct pca953x_chip *chip = i2c_get_clientdata(client); in pca953x_remove() local
1092 if (pdata && pdata->teardown) { in pca953x_remove()
1093 ret = pdata->teardown(client, chip->gpio_chip.base, in pca953x_remove()
1094 chip->gpio_chip.ngpio, pdata->context); in pca953x_remove()
1096 dev_err(&client->dev, "teardown failed, %d\n", ret); in pca953x_remove()
1101 regulator_disable(chip->regulator); in pca953x_remove()
1109 struct pca953x_chip *chip = dev_get_drvdata(dev); in pca953x_regcache_sync() local
1116 ret = regcache_sync_region(chip->regmap, chip->regs->direction, in pca953x_regcache_sync()
1117 chip->regs->direction + NBANK(chip)); in pca953x_regcache_sync()
1123 ret = regcache_sync_region(chip->regmap, chip->regs->output, in pca953x_regcache_sync()
1124 chip->regs->output + NBANK(chip)); in pca953x_regcache_sync()
1131 if (chip->driver_data & PCA_PCAL) { in pca953x_regcache_sync()
1132 ret = regcache_sync_region(chip->regmap, PCAL953X_IN_LATCH, in pca953x_regcache_sync()
1133 PCAL953X_IN_LATCH + NBANK(chip)); in pca953x_regcache_sync()
1140 ret = regcache_sync_region(chip->regmap, PCAL953X_INT_MASK, in pca953x_regcache_sync()
1141 PCAL953X_INT_MASK + NBANK(chip)); in pca953x_regcache_sync()
1155 struct pca953x_chip *chip = dev_get_drvdata(dev); in pca953x_suspend() local
1157 regcache_cache_only(chip->regmap, true); in pca953x_suspend()
1159 if (atomic_read(&chip->wakeup_path)) in pca953x_suspend()
1162 regulator_disable(chip->regulator); in pca953x_suspend()
1169 struct pca953x_chip *chip = dev_get_drvdata(dev); in pca953x_resume() local
1172 if (!atomic_read(&chip->wakeup_path)) { in pca953x_resume()
1173 ret = regulator_enable(chip->regulator); in pca953x_resume()
1180 regcache_cache_only(chip->regmap, false); in pca953x_resume()
1181 regcache_mark_dirty(chip->regmap); in pca953x_resume()
1186 ret = regcache_sync(chip->regmap); in pca953x_resume()
1196 /* convenience to stop overlong match-table lines */