Lines Matching +full:off +full:- +full:chip
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * GPIO Chip driver for Analog Devices
6 * Copyright 2009-2010 Analog Devices Inc.
21 #define DRV_NAME "adp5588-gpio"
50 dev_err(&client->dev, "Read Error\n"); in adp5588_gpio_read()
60 dev_err(&client->dev, "Write Error\n"); in adp5588_gpio_write()
65 static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off) in adp5588_gpio_get_value() argument
67 struct adp5588_gpio *dev = gpiochip_get_data(chip); in adp5588_gpio_get_value()
68 unsigned bank = ADP5588_BANK(off); in adp5588_gpio_get_value()
69 unsigned bit = ADP5588_BIT(off); in adp5588_gpio_get_value()
72 mutex_lock(&dev->lock); in adp5588_gpio_get_value()
74 if (dev->dir[bank] & bit) in adp5588_gpio_get_value()
75 val = dev->dat_out[bank]; in adp5588_gpio_get_value()
77 val = adp5588_gpio_read(dev->client, GPIO_DAT_STAT1 + bank); in adp5588_gpio_get_value()
79 mutex_unlock(&dev->lock); in adp5588_gpio_get_value()
84 static void adp5588_gpio_set_value(struct gpio_chip *chip, in adp5588_gpio_set_value() argument
85 unsigned off, int val) in adp5588_gpio_set_value() argument
88 struct adp5588_gpio *dev = gpiochip_get_data(chip); in adp5588_gpio_set_value()
90 bank = ADP5588_BANK(off); in adp5588_gpio_set_value()
91 bit = ADP5588_BIT(off); in adp5588_gpio_set_value()
93 mutex_lock(&dev->lock); in adp5588_gpio_set_value()
95 dev->dat_out[bank] |= bit; in adp5588_gpio_set_value()
97 dev->dat_out[bank] &= ~bit; in adp5588_gpio_set_value()
99 adp5588_gpio_write(dev->client, GPIO_DAT_OUT1 + bank, in adp5588_gpio_set_value()
100 dev->dat_out[bank]); in adp5588_gpio_set_value()
101 mutex_unlock(&dev->lock); in adp5588_gpio_set_value()
104 static int adp5588_gpio_direction_input(struct gpio_chip *chip, unsigned off) in adp5588_gpio_direction_input() argument
108 struct adp5588_gpio *dev = gpiochip_get_data(chip); in adp5588_gpio_direction_input()
110 bank = ADP5588_BANK(off); in adp5588_gpio_direction_input()
112 mutex_lock(&dev->lock); in adp5588_gpio_direction_input()
113 dev->dir[bank] &= ~ADP5588_BIT(off); in adp5588_gpio_direction_input()
114 ret = adp5588_gpio_write(dev->client, GPIO_DIR1 + bank, dev->dir[bank]); in adp5588_gpio_direction_input()
115 mutex_unlock(&dev->lock); in adp5588_gpio_direction_input()
120 static int adp5588_gpio_direction_output(struct gpio_chip *chip, in adp5588_gpio_direction_output() argument
121 unsigned off, int val) in adp5588_gpio_direction_output() argument
125 struct adp5588_gpio *dev = gpiochip_get_data(chip); in adp5588_gpio_direction_output()
127 bank = ADP5588_BANK(off); in adp5588_gpio_direction_output()
128 bit = ADP5588_BIT(off); in adp5588_gpio_direction_output()
130 mutex_lock(&dev->lock); in adp5588_gpio_direction_output()
131 dev->dir[bank] |= bit; in adp5588_gpio_direction_output()
134 dev->dat_out[bank] |= bit; in adp5588_gpio_direction_output()
136 dev->dat_out[bank] &= ~bit; in adp5588_gpio_direction_output()
138 ret = adp5588_gpio_write(dev->client, GPIO_DAT_OUT1 + bank, in adp5588_gpio_direction_output()
139 dev->dat_out[bank]); in adp5588_gpio_direction_output()
140 ret |= adp5588_gpio_write(dev->client, GPIO_DIR1 + bank, in adp5588_gpio_direction_output()
141 dev->dir[bank]); in adp5588_gpio_direction_output()
142 mutex_unlock(&dev->lock); in adp5588_gpio_direction_output()
154 mutex_lock(&dev->irq_lock); in adp5588_irq_bus_lock()
158 * genirq core code can issue chip->mask/unmask from atomic context.
172 if (dev->int_input_en[i]) { in adp5588_irq_bus_sync_unlock()
173 mutex_lock(&dev->lock); in adp5588_irq_bus_sync_unlock()
174 dev->dir[i] &= ~dev->int_input_en[i]; in adp5588_irq_bus_sync_unlock()
175 dev->int_input_en[i] = 0; in adp5588_irq_bus_sync_unlock()
176 adp5588_gpio_write(dev->client, GPIO_DIR1 + i, in adp5588_irq_bus_sync_unlock()
177 dev->dir[i]); in adp5588_irq_bus_sync_unlock()
178 mutex_unlock(&dev->lock); in adp5588_irq_bus_sync_unlock()
181 if (dev->int_en[i] ^ dev->irq_mask[i]) { in adp5588_irq_bus_sync_unlock()
182 dev->int_en[i] = dev->irq_mask[i]; in adp5588_irq_bus_sync_unlock()
183 adp5588_gpio_write(dev->client, GPI_EM1 + i, in adp5588_irq_bus_sync_unlock()
184 dev->int_en[i]); in adp5588_irq_bus_sync_unlock()
188 mutex_unlock(&dev->irq_lock); in adp5588_irq_bus_sync_unlock()
196 dev->irq_mask[ADP5588_BANK(d->hwirq)] &= ~ADP5588_BIT(d->hwirq); in adp5588_irq_mask()
204 dev->irq_mask[ADP5588_BANK(d->hwirq)] |= ADP5588_BIT(d->hwirq); in adp5588_irq_unmask()
211 uint16_t gpio = d->hwirq; in adp5588_irq_set_type()
217 dev->int_lvl_low[bank] &= ~bit; in adp5588_irq_set_type()
218 dev->int_lvl_high[bank] &= ~bit; in adp5588_irq_set_type()
221 dev->int_lvl_high[bank] |= bit; in adp5588_irq_set_type()
224 dev->int_lvl_low[bank] |= bit; in adp5588_irq_set_type()
226 dev->int_input_en[bank] |= bit; in adp5588_irq_set_type()
243 int status = adp5588_gpio_read(dev->client, INT_STAT); in adp5588_irq_handler()
246 int ev_cnt = adp5588_gpio_read(dev->client, KEY_LCK_EC_STAT); in adp5588_irq_handler()
252 int key = adp5588_gpio_read(dev->client, in adp5588_irq_handler()
257 int gpio = (key & 0x7f) - 97; in adp5588_irq_handler()
262 if ((lvl && dev->int_lvl_high[bank] & bit) || in adp5588_irq_handler()
263 (!lvl && dev->int_lvl_low[bank] & bit)) in adp5588_irq_handler()
265 dev->gpio_chip.irq.domain, gpio)); in adp5588_irq_handler()
270 adp5588_gpio_write(dev->client, INT_STAT, status); /* Status is W1C */ in adp5588_irq_handler()
279 /* Enable IRQs after registering chip */ in adp5588_irq_init_hw()
280 adp5588_gpio_write(dev->client, CFG, in adp5588_irq_init_hw()
288 struct i2c_client *client = dev->client; in adp5588_irq_setup()
291 dev_get_platdata(&client->dev); in adp5588_irq_setup()
295 adp5588_gpio_write(client, INT_STAT, -1); /* status is W1C */ in adp5588_irq_setup()
297 mutex_init(&dev->irq_lock); in adp5588_irq_setup()
299 ret = devm_request_threaded_irq(&client->dev, client->irq, in adp5588_irq_setup()
302 dev_name(&client->dev), dev); in adp5588_irq_setup()
304 dev_err(&client->dev, "failed to request irq %d\n", in adp5588_irq_setup()
305 client->irq); in adp5588_irq_setup()
310 girq = &dev->gpio_chip.irq; in adp5588_irq_setup()
311 girq->chip = &adp5588_irq_chip; in adp5588_irq_setup()
313 girq->parent_handler = NULL; in adp5588_irq_setup()
314 girq->num_parents = 0; in adp5588_irq_setup()
315 girq->parents = NULL; in adp5588_irq_setup()
316 girq->first = pdata ? pdata->irq_base : 0; in adp5588_irq_setup()
317 girq->default_type = IRQ_TYPE_NONE; in adp5588_irq_setup()
318 girq->handler = handle_simple_irq; in adp5588_irq_setup()
319 girq->init_hw = adp5588_irq_init_hw; in adp5588_irq_setup()
320 girq->threaded = true; in adp5588_irq_setup()
328 struct i2c_client *client = dev->client; in adp5588_irq_setup()
329 dev_warn(&client->dev, "interrupt support not compiled in\n"); in adp5588_irq_setup()
339 dev_get_platdata(&client->dev); in adp5588_gpio_probe()
345 if (!i2c_check_functionality(client->adapter, in adp5588_gpio_probe()
347 dev_err(&client->dev, "SMBUS Byte Data not Supported\n"); in adp5588_gpio_probe()
348 return -EIO; in adp5588_gpio_probe()
351 dev = devm_kzalloc(&client->dev, sizeof(*dev), GFP_KERNEL); in adp5588_gpio_probe()
353 return -ENOMEM; in adp5588_gpio_probe()
355 dev->client = client; in adp5588_gpio_probe()
357 gc = &dev->gpio_chip; in adp5588_gpio_probe()
358 gc->direction_input = adp5588_gpio_direction_input; in adp5588_gpio_probe()
359 gc->direction_output = adp5588_gpio_direction_output; in adp5588_gpio_probe()
360 gc->get = adp5588_gpio_get_value; in adp5588_gpio_probe()
361 gc->set = adp5588_gpio_set_value; in adp5588_gpio_probe()
362 gc->can_sleep = true; in adp5588_gpio_probe()
363 gc->base = -1; in adp5588_gpio_probe()
364 gc->parent = &client->dev; in adp5588_gpio_probe()
367 gc->base = pdata->gpio_start; in adp5588_gpio_probe()
368 gc->names = pdata->names; in adp5588_gpio_probe()
369 pullup_dis_mask = pdata->pullup_dis_mask; in adp5588_gpio_probe()
372 gc->ngpio = ADP5588_MAXGPIO; in adp5588_gpio_probe()
373 gc->label = client->name; in adp5588_gpio_probe()
374 gc->owner = THIS_MODULE; in adp5588_gpio_probe()
376 mutex_init(&dev->lock); in adp5588_gpio_probe()
378 ret = adp5588_gpio_read(dev->client, DEV_ID); in adp5588_gpio_probe()
385 dev->dat_out[i] = adp5588_gpio_read(client, GPIO_DAT_OUT1 + i); in adp5588_gpio_probe()
386 dev->dir[i] = adp5588_gpio_read(client, GPIO_DIR1 + i); in adp5588_gpio_probe()
395 if (client->irq) { in adp5588_gpio_probe()
397 dev_warn(&client->dev, "GPIO int not supported\n"); in adp5588_gpio_probe()
405 ret = devm_gpiochip_add_data(&client->dev, &dev->gpio_chip, dev); in adp5588_gpio_probe()
409 if (pdata && pdata->setup) { in adp5588_gpio_probe()
410 ret = pdata->setup(client, gc->base, gc->ngpio, pdata->context); in adp5588_gpio_probe()
412 dev_warn(&client->dev, "setup failed, %d\n", ret); in adp5588_gpio_probe()
423 dev_get_platdata(&client->dev); in adp5588_gpio_remove()
427 if (pdata && pdata->teardown) { in adp5588_gpio_remove()
428 ret = pdata->teardown(client, in adp5588_gpio_remove()
429 dev->gpio_chip.base, dev->gpio_chip.ngpio, in adp5588_gpio_remove()
430 pdata->context); in adp5588_gpio_remove()
432 dev_err(&client->dev, "teardown failed %d\n", ret); in adp5588_gpio_remove()
437 if (dev->client->irq) in adp5588_gpio_remove()
438 free_irq(dev->client->irq, dev); in adp5588_gpio_remove()