Lines Matching +full:data +full:- +full:mirror
1 // SPDX-License-Identifier: GPL-2.0-only
20 #include <linux/pinctrl/pinconf-generic.h>
22 #include "pinctrl-mcp23s08.h"
140 return regmap_read(mcp->regmap, reg << mcp->reg_shift, val); in mcp_read()
145 return regmap_write(mcp->regmap, reg << mcp->reg_shift, val); in mcp_write()
151 return regmap_update_bits(mcp->regmap, reg << mcp->reg_shift, in mcp_update_bits()
208 return -ENOTSUPP; in mcp_pinctrl_get_group_pins()
226 unsigned int data, status; in mcp_pinconf_get() local
231 ret = mcp_read(mcp, MCP_GPPU, &data); in mcp_pinconf_get()
234 status = (data & BIT(pin)) ? 1 : 0; in mcp_pinconf_get()
237 return -ENOTSUPP; in mcp_pinconf_get()
242 return status ? 0 : -EINVAL; in mcp_pinconf_get()
263 dev_dbg(mcp->dev, "Invalid config param %04x\n", param); in mcp_pinconf_set()
264 return -ENOTSUPP; in mcp_pinconf_set()
277 /*----------------------------------------------------------------------*/
284 mutex_lock(&mcp->lock); in mcp23s08_direction_input()
286 mutex_unlock(&mcp->lock); in mcp23s08_direction_input()
296 mutex_lock(&mcp->lock); in mcp23s08_get()
303 mcp->cached_gpio = status; in mcp23s08_get()
307 mutex_unlock(&mcp->lock); in mcp23s08_get()
318 mutex_lock(&mcp->lock); in mcp23s08_get_multiple()
325 mcp->cached_gpio = status; in mcp23s08_get_multiple()
329 mutex_unlock(&mcp->lock); in mcp23s08_get_multiple()
343 mutex_lock(&mcp->lock); in mcp23s08_set()
345 mutex_unlock(&mcp->lock); in mcp23s08_set()
353 mutex_lock(&mcp->lock); in mcp23s08_set_multiple()
355 mutex_unlock(&mcp->lock); in mcp23s08_set_multiple()
365 mutex_lock(&mcp->lock); in mcp23s08_direction_output()
370 mutex_unlock(&mcp->lock); in mcp23s08_direction_output()
374 /*----------------------------------------------------------------------*/
375 static irqreturn_t mcp23s08_irq(int irq, void *data) in mcp23s08_irq() argument
377 struct mcp23s08 *mcp = data; in mcp23s08_irq()
383 mutex_lock(&mcp->lock); in mcp23s08_irq()
405 gpio_orig = mcp->cached_gpio; in mcp23s08_irq()
406 mcp->cached_gpio = gpio; in mcp23s08_irq()
407 mutex_unlock(&mcp->lock); in mcp23s08_irq()
409 dev_dbg(mcp->chip.parent, in mcp23s08_irq()
413 for (i = 0; i < mcp->chip.ngpio; i++) { in mcp23s08_irq()
419 * not written to at the same time - only on a per-bank in mcp23s08_irq()
423 * interrupt per-bank. On the mcp23s17, there is in mcp23s08_irq()
451 (BIT(i) & mcp->irq_rise) && gpio_set) || in mcp23s08_irq()
453 (BIT(i) & mcp->irq_fall) && !gpio_set) || in mcp23s08_irq()
455 child_irq = irq_find_mapping(mcp->chip.irq.domain, i); in mcp23s08_irq()
463 mutex_unlock(&mcp->lock); in mcp23s08_irq()
467 static void mcp23s08_irq_mask(struct irq_data *data) in mcp23s08_irq_mask() argument
469 struct gpio_chip *gc = irq_data_get_irq_chip_data(data); in mcp23s08_irq_mask()
471 unsigned int pos = irqd_to_hwirq(data); in mcp23s08_irq_mask()
477 static void mcp23s08_irq_unmask(struct irq_data *data) in mcp23s08_irq_unmask() argument
479 struct gpio_chip *gc = irq_data_get_irq_chip_data(data); in mcp23s08_irq_unmask()
481 unsigned int pos = irqd_to_hwirq(data); in mcp23s08_irq_unmask()
487 static int mcp23s08_irq_set_type(struct irq_data *data, unsigned int type) in mcp23s08_irq_set_type() argument
489 struct gpio_chip *gc = irq_data_get_irq_chip_data(data); in mcp23s08_irq_set_type()
491 unsigned int pos = irqd_to_hwirq(data); in mcp23s08_irq_set_type()
495 mcp->irq_rise |= BIT(pos); in mcp23s08_irq_set_type()
496 mcp->irq_fall |= BIT(pos); in mcp23s08_irq_set_type()
499 mcp->irq_rise |= BIT(pos); in mcp23s08_irq_set_type()
500 mcp->irq_fall &= ~BIT(pos); in mcp23s08_irq_set_type()
503 mcp->irq_rise &= ~BIT(pos); in mcp23s08_irq_set_type()
504 mcp->irq_fall |= BIT(pos); in mcp23s08_irq_set_type()
512 return -EINVAL; in mcp23s08_irq_set_type()
517 static void mcp23s08_irq_bus_lock(struct irq_data *data) in mcp23s08_irq_bus_lock() argument
519 struct gpio_chip *gc = irq_data_get_irq_chip_data(data); in mcp23s08_irq_bus_lock()
522 mutex_lock(&mcp->lock); in mcp23s08_irq_bus_lock()
523 regcache_cache_only(mcp->regmap, true); in mcp23s08_irq_bus_lock()
526 static void mcp23s08_irq_bus_unlock(struct irq_data *data) in mcp23s08_irq_bus_unlock() argument
528 struct gpio_chip *gc = irq_data_get_irq_chip_data(data); in mcp23s08_irq_bus_unlock()
531 regcache_cache_only(mcp->regmap, false); in mcp23s08_irq_bus_unlock()
532 regcache_sync(mcp->regmap); in mcp23s08_irq_bus_unlock()
534 mutex_unlock(&mcp->lock); in mcp23s08_irq_bus_unlock()
539 struct gpio_chip *chip = &mcp->chip; in mcp23s08_irq_setup()
543 if (mcp->irq_active_high) in mcp23s08_irq_setup()
548 err = devm_request_threaded_irq(chip->parent, mcp->irq, NULL, in mcp23s08_irq_setup()
550 irqflags, dev_name(chip->parent), mcp); in mcp23s08_irq_setup()
552 dev_err(chip->parent, "unable to request IRQ#%d: %d\n", in mcp23s08_irq_setup()
553 mcp->irq, err); in mcp23s08_irq_setup()
565 seq_printf(p, dev_name(mcp->dev)); in mcp23s08_irq_print_chip()
579 /*----------------------------------------------------------------------*/
585 bool mirror = false; in mcp23s08_probe_one() local
588 mutex_init(&mcp->lock); in mcp23s08_probe_one()
590 mcp->dev = dev; in mcp23s08_probe_one()
591 mcp->addr = addr; in mcp23s08_probe_one()
593 mcp->irq_active_high = false; in mcp23s08_probe_one()
595 mcp->chip.direction_input = mcp23s08_direction_input; in mcp23s08_probe_one()
596 mcp->chip.get = mcp23s08_get; in mcp23s08_probe_one()
597 mcp->chip.get_multiple = mcp23s08_get_multiple; in mcp23s08_probe_one()
598 mcp->chip.direction_output = mcp23s08_direction_output; in mcp23s08_probe_one()
599 mcp->chip.set = mcp23s08_set; in mcp23s08_probe_one()
600 mcp->chip.set_multiple = mcp23s08_set_multiple; in mcp23s08_probe_one()
602 mcp->chip.base = base; in mcp23s08_probe_one()
603 mcp->chip.can_sleep = true; in mcp23s08_probe_one()
604 mcp->chip.parent = dev; in mcp23s08_probe_one()
605 mcp->chip.owner = THIS_MODULE; in mcp23s08_probe_one()
607 mcp->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); in mcp23s08_probe_one()
617 mcp->irq_controller = in mcp23s08_probe_one()
618 device_property_read_bool(dev, "interrupt-controller"); in mcp23s08_probe_one()
619 if (mcp->irq && mcp->irq_controller) { in mcp23s08_probe_one()
620 mcp->irq_active_high = in mcp23s08_probe_one()
622 "microchip,irq-active-high"); in mcp23s08_probe_one()
624 mirror = device_property_read_bool(dev, "microchip,irq-mirror"); in mcp23s08_probe_one()
625 open_drain = device_property_read_bool(dev, "drive-open-drain"); in mcp23s08_probe_one()
628 if ((status & IOCON_SEQOP) || !(status & IOCON_HAEN) || mirror || in mcp23s08_probe_one()
629 mcp->irq_active_high || open_drain) { in mcp23s08_probe_one()
633 if (mcp->irq_active_high) in mcp23s08_probe_one()
638 if (mirror) in mcp23s08_probe_one()
652 if (mcp->irq && mcp->irq_controller) { in mcp23s08_probe_one()
653 struct gpio_irq_chip *girq = &mcp->chip.irq; in mcp23s08_probe_one()
657 girq->parent_handler = NULL; in mcp23s08_probe_one()
658 girq->num_parents = 0; in mcp23s08_probe_one()
659 girq->parents = NULL; in mcp23s08_probe_one()
660 girq->default_type = IRQ_TYPE_NONE; in mcp23s08_probe_one()
661 girq->handler = handle_simple_irq; in mcp23s08_probe_one()
662 girq->threaded = true; in mcp23s08_probe_one()
665 ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp); in mcp23s08_probe_one()
669 mcp->pinctrl_desc.pctlops = &mcp_pinctrl_ops; in mcp23s08_probe_one()
670 mcp->pinctrl_desc.confops = &mcp_pinconf_ops; in mcp23s08_probe_one()
671 mcp->pinctrl_desc.npins = mcp->chip.ngpio; in mcp23s08_probe_one()
672 if (mcp->pinctrl_desc.npins == 8) in mcp23s08_probe_one()
673 mcp->pinctrl_desc.pins = mcp23x08_pins; in mcp23s08_probe_one()
674 else if (mcp->pinctrl_desc.npins == 16) in mcp23s08_probe_one()
675 mcp->pinctrl_desc.pins = mcp23x17_pins; in mcp23s08_probe_one()
676 mcp->pinctrl_desc.owner = THIS_MODULE; in mcp23s08_probe_one()
678 mcp->pctldev = devm_pinctrl_register(dev, &mcp->pinctrl_desc, mcp); in mcp23s08_probe_one()
679 if (IS_ERR(mcp->pctldev)) in mcp23s08_probe_one()
680 return dev_err_probe(dev, PTR_ERR(mcp->pctldev), "can't register controller\n"); in mcp23s08_probe_one()
682 if (mcp->irq) { in mcp23s08_probe_one()