Lines Matching +full:gpio +full:- +full:1
3 * GPIO driver
6 * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de>
13 #include <linux/gpio/driver.h>
26 static int ssb_gpio_to_irq(struct gpio_chip *chip, unsigned int gpio) in ssb_gpio_to_irq() argument
30 if (bus->bustype == SSB_BUSTYPE_SSB) in ssb_gpio_to_irq()
31 return irq_find_mapping(bus->irq_domain, gpio); in ssb_gpio_to_irq()
33 return -EINVAL; in ssb_gpio_to_irq()
41 static int ssb_gpio_chipco_get_value(struct gpio_chip *chip, unsigned int gpio) in ssb_gpio_chipco_get_value() argument
45 return !!ssb_chipco_gpio_in(&bus->chipco, 1 << gpio); in ssb_gpio_chipco_get_value()
48 static int ssb_gpio_chipco_set_value(struct gpio_chip *chip, unsigned int gpio, in ssb_gpio_chipco_set_value() argument
53 ssb_chipco_gpio_out(&bus->chipco, 1 << gpio, value ? 1 << gpio : 0); in ssb_gpio_chipco_set_value()
59 unsigned int gpio) in ssb_gpio_chipco_direction_input() argument
63 ssb_chipco_gpio_outen(&bus->chipco, 1 << gpio, 0); in ssb_gpio_chipco_direction_input()
68 unsigned int gpio, int value) in ssb_gpio_chipco_direction_output() argument
72 ssb_chipco_gpio_outen(&bus->chipco, 1 << gpio, 1 << gpio); in ssb_gpio_chipco_direction_output()
73 ssb_chipco_gpio_out(&bus->chipco, 1 << gpio, value ? 1 << gpio : 0); in ssb_gpio_chipco_direction_output()
77 static int ssb_gpio_chipco_request(struct gpio_chip *chip, unsigned int gpio) in ssb_gpio_chipco_request() argument
81 ssb_chipco_gpio_control(&bus->chipco, 1 << gpio, 0); in ssb_gpio_chipco_request()
83 ssb_chipco_gpio_pulldown(&bus->chipco, 1 << gpio, 0); in ssb_gpio_chipco_request()
85 ssb_chipco_gpio_pullup(&bus->chipco, 1 << gpio, 1 << gpio); in ssb_gpio_chipco_request()
90 static void ssb_gpio_chipco_free(struct gpio_chip *chip, unsigned int gpio) in ssb_gpio_chipco_free() argument
95 ssb_chipco_gpio_pullup(&bus->chipco, 1 << gpio, 0); in ssb_gpio_chipco_free()
102 int gpio = irqd_to_hwirq(d); in ssb_gpio_irq_chipco_mask() local
104 ssb_chipco_gpio_intmask(&bus->chipco, BIT(gpio), 0); in ssb_gpio_irq_chipco_mask()
110 int gpio = irqd_to_hwirq(d); in ssb_gpio_irq_chipco_unmask() local
111 u32 val = ssb_chipco_gpio_in(&bus->chipco, BIT(gpio)); in ssb_gpio_irq_chipco_unmask()
113 ssb_chipco_gpio_polarity(&bus->chipco, BIT(gpio), val); in ssb_gpio_irq_chipco_unmask()
114 ssb_chipco_gpio_intmask(&bus->chipco, BIT(gpio), BIT(gpio)); in ssb_gpio_irq_chipco_unmask()
118 .name = "SSB-GPIO-CC",
126 struct ssb_chipcommon *chipco = &bus->chipco; in ssb_gpio_irq_chipco_handler()
131 int gpio; in ssb_gpio_irq_chipco_handler() local
136 for_each_set_bit(gpio, &irqs, bus->gpio.ngpio) in ssb_gpio_irq_chipco_handler()
137 generic_handle_domain_irq_safe(bus->irq_domain, gpio); in ssb_gpio_irq_chipco_handler()
146 struct ssb_chipcommon *chipco = &bus->chipco; in ssb_gpio_irq_chipco_domain_init()
147 struct gpio_chip *chip = &bus->gpio; in ssb_gpio_irq_chipco_domain_init()
148 int gpio, hwirq, err; in ssb_gpio_irq_chipco_domain_init() local
150 if (bus->bustype != SSB_BUSTYPE_SSB) in ssb_gpio_irq_chipco_domain_init()
153 bus->irq_domain = irq_domain_create_linear(NULL, chip->ngpio, &irq_domain_simple_ops, in ssb_gpio_irq_chipco_domain_init()
155 if (!bus->irq_domain) { in ssb_gpio_irq_chipco_domain_init()
156 err = -ENODEV; in ssb_gpio_irq_chipco_domain_init()
159 for (gpio = 0; gpio < chip->ngpio; gpio++) { in ssb_gpio_irq_chipco_domain_init()
160 int irq = irq_create_mapping(bus->irq_domain, gpio); in ssb_gpio_irq_chipco_domain_init()
167 hwirq = ssb_mips_irq(bus->chipco.dev) + 2; in ssb_gpio_irq_chipco_domain_init()
169 "gpio", bus); in ssb_gpio_irq_chipco_domain_init()
173 ssb_chipco_gpio_intmask(&bus->chipco, ~0, 0); in ssb_gpio_irq_chipco_domain_init()
179 for (gpio = 0; gpio < chip->ngpio; gpio++) { in ssb_gpio_irq_chipco_domain_init()
180 int irq = irq_find_mapping(bus->irq_domain, gpio); in ssb_gpio_irq_chipco_domain_init()
184 irq_domain_remove(bus->irq_domain); in ssb_gpio_irq_chipco_domain_init()
191 struct ssb_chipcommon *chipco = &bus->chipco; in ssb_gpio_irq_chipco_domain_exit()
192 struct gpio_chip *chip = &bus->gpio; in ssb_gpio_irq_chipco_domain_exit()
193 int gpio; in ssb_gpio_irq_chipco_domain_exit() local
195 if (bus->bustype != SSB_BUSTYPE_SSB) in ssb_gpio_irq_chipco_domain_exit()
199 free_irq(ssb_mips_irq(bus->chipco.dev) + 2, chipco); in ssb_gpio_irq_chipco_domain_exit()
200 for (gpio = 0; gpio < chip->ngpio; gpio++) { in ssb_gpio_irq_chipco_domain_exit()
201 int irq = irq_find_mapping(bus->irq_domain, gpio); in ssb_gpio_irq_chipco_domain_exit()
205 irq_domain_remove(bus->irq_domain); in ssb_gpio_irq_chipco_domain_exit()
220 struct gpio_chip *chip = &bus->gpio; in ssb_gpio_chipco_init()
223 chip->label = "ssb_chipco_gpio"; in ssb_gpio_chipco_init()
224 chip->owner = THIS_MODULE; in ssb_gpio_chipco_init()
225 chip->request = ssb_gpio_chipco_request; in ssb_gpio_chipco_init()
226 chip->free = ssb_gpio_chipco_free; in ssb_gpio_chipco_init()
227 chip->get = ssb_gpio_chipco_get_value; in ssb_gpio_chipco_init()
228 chip->set = ssb_gpio_chipco_set_value; in ssb_gpio_chipco_init()
229 chip->direction_input = ssb_gpio_chipco_direction_input; in ssb_gpio_chipco_init()
230 chip->direction_output = ssb_gpio_chipco_direction_output; in ssb_gpio_chipco_init()
232 chip->to_irq = ssb_gpio_to_irq; in ssb_gpio_chipco_init()
234 chip->ngpio = 16; in ssb_gpio_chipco_init()
235 /* There is just one SoC in one device and its GPIO addresses should be in ssb_gpio_chipco_init()
239 if (bus->bustype == SSB_BUSTYPE_SSB) in ssb_gpio_chipco_init()
240 chip->base = 0; in ssb_gpio_chipco_init()
242 chip->base = -1; in ssb_gpio_chipco_init()
263 static int ssb_gpio_extif_get_value(struct gpio_chip *chip, unsigned int gpio) in ssb_gpio_extif_get_value() argument
267 return !!ssb_extif_gpio_in(&bus->extif, 1 << gpio); in ssb_gpio_extif_get_value()
270 static int ssb_gpio_extif_set_value(struct gpio_chip *chip, unsigned int gpio, in ssb_gpio_extif_set_value() argument
275 ssb_extif_gpio_out(&bus->extif, 1 << gpio, value ? 1 << gpio : 0); in ssb_gpio_extif_set_value()
281 unsigned int gpio) in ssb_gpio_extif_direction_input() argument
285 ssb_extif_gpio_outen(&bus->extif, 1 << gpio, 0); in ssb_gpio_extif_direction_input()
290 unsigned int gpio, int value) in ssb_gpio_extif_direction_output() argument
294 ssb_extif_gpio_outen(&bus->extif, 1 << gpio, 1 << gpio); in ssb_gpio_extif_direction_output()
295 ssb_extif_gpio_out(&bus->extif, 1 << gpio, value ? 1 << gpio : 0); in ssb_gpio_extif_direction_output()
303 int gpio = irqd_to_hwirq(d); in ssb_gpio_irq_extif_mask() local
305 ssb_extif_gpio_intmask(&bus->extif, BIT(gpio), 0); in ssb_gpio_irq_extif_mask()
311 int gpio = irqd_to_hwirq(d); in ssb_gpio_irq_extif_unmask() local
312 u32 val = ssb_extif_gpio_in(&bus->extif, BIT(gpio)); in ssb_gpio_irq_extif_unmask()
314 ssb_extif_gpio_polarity(&bus->extif, BIT(gpio), val); in ssb_gpio_irq_extif_unmask()
315 ssb_extif_gpio_intmask(&bus->extif, BIT(gpio), BIT(gpio)); in ssb_gpio_irq_extif_unmask()
319 .name = "SSB-GPIO-EXTIF",
327 struct ssb_extif *extif = &bus->extif; in ssb_gpio_irq_extif_handler()
328 u32 val = ssb_read32(extif->dev, SSB_EXTIF_GPIO_IN); in ssb_gpio_irq_extif_handler()
329 u32 mask = ssb_read32(extif->dev, SSB_EXTIF_GPIO_INTMASK); in ssb_gpio_irq_extif_handler()
330 u32 pol = ssb_read32(extif->dev, SSB_EXTIF_GPIO_INTPOL); in ssb_gpio_irq_extif_handler()
332 int gpio; in ssb_gpio_irq_extif_handler() local
337 for_each_set_bit(gpio, &irqs, bus->gpio.ngpio) in ssb_gpio_irq_extif_handler()
338 generic_handle_domain_irq_safe(bus->irq_domain, gpio); in ssb_gpio_irq_extif_handler()
347 struct ssb_extif *extif = &bus->extif; in ssb_gpio_irq_extif_domain_init()
348 struct gpio_chip *chip = &bus->gpio; in ssb_gpio_irq_extif_domain_init()
349 int gpio, hwirq, err; in ssb_gpio_irq_extif_domain_init() local
351 if (bus->bustype != SSB_BUSTYPE_SSB) in ssb_gpio_irq_extif_domain_init()
354 bus->irq_domain = irq_domain_create_linear(NULL, chip->ngpio, &irq_domain_simple_ops, in ssb_gpio_irq_extif_domain_init()
356 if (!bus->irq_domain) { in ssb_gpio_irq_extif_domain_init()
357 err = -ENODEV; in ssb_gpio_irq_extif_domain_init()
360 for (gpio = 0; gpio < chip->ngpio; gpio++) { in ssb_gpio_irq_extif_domain_init()
361 int irq = irq_create_mapping(bus->irq_domain, gpio); in ssb_gpio_irq_extif_domain_init()
368 hwirq = ssb_mips_irq(bus->extif.dev) + 2; in ssb_gpio_irq_extif_domain_init()
370 "gpio", bus); in ssb_gpio_irq_extif_domain_init()
374 ssb_extif_gpio_intmask(&bus->extif, ~0, 0); in ssb_gpio_irq_extif_domain_init()
379 for (gpio = 0; gpio < chip->ngpio; gpio++) { in ssb_gpio_irq_extif_domain_init()
380 int irq = irq_find_mapping(bus->irq_domain, gpio); in ssb_gpio_irq_extif_domain_init()
384 irq_domain_remove(bus->irq_domain); in ssb_gpio_irq_extif_domain_init()
391 struct ssb_extif *extif = &bus->extif; in ssb_gpio_irq_extif_domain_exit()
392 struct gpio_chip *chip = &bus->gpio; in ssb_gpio_irq_extif_domain_exit()
393 int gpio; in ssb_gpio_irq_extif_domain_exit() local
395 if (bus->bustype != SSB_BUSTYPE_SSB) in ssb_gpio_irq_extif_domain_exit()
398 free_irq(ssb_mips_irq(bus->extif.dev) + 2, extif); in ssb_gpio_irq_extif_domain_exit()
399 for (gpio = 0; gpio < chip->ngpio; gpio++) { in ssb_gpio_irq_extif_domain_exit()
400 int irq = irq_find_mapping(bus->irq_domain, gpio); in ssb_gpio_irq_extif_domain_exit()
404 irq_domain_remove(bus->irq_domain); in ssb_gpio_irq_extif_domain_exit()
419 struct gpio_chip *chip = &bus->gpio; in ssb_gpio_extif_init()
422 chip->label = "ssb_extif_gpio"; in ssb_gpio_extif_init()
423 chip->owner = THIS_MODULE; in ssb_gpio_extif_init()
424 chip->get = ssb_gpio_extif_get_value; in ssb_gpio_extif_init()
425 chip->set = ssb_gpio_extif_set_value; in ssb_gpio_extif_init()
426 chip->direction_input = ssb_gpio_extif_direction_input; in ssb_gpio_extif_init()
427 chip->direction_output = ssb_gpio_extif_direction_output; in ssb_gpio_extif_init()
429 chip->to_irq = ssb_gpio_to_irq; in ssb_gpio_extif_init()
431 chip->ngpio = 5; in ssb_gpio_extif_init()
432 /* There is just one SoC in one device and its GPIO addresses should be in ssb_gpio_extif_init()
436 if (bus->bustype == SSB_BUSTYPE_SSB) in ssb_gpio_extif_init()
437 chip->base = 0; in ssb_gpio_extif_init()
439 chip->base = -1; in ssb_gpio_extif_init()
457 return -ENOTSUPP; in ssb_gpio_extif_init()
467 if (ssb_chipco_available(&bus->chipco)) in ssb_gpio_init()
469 else if (ssb_extif_available(&bus->extif)) in ssb_gpio_init()
471 return -1; in ssb_gpio_init()
476 if (ssb_chipco_available(&bus->chipco) || in ssb_gpio_unregister()
477 ssb_extif_available(&bus->extif)) { in ssb_gpio_unregister()
478 gpiochip_remove(&bus->gpio); in ssb_gpio_unregister()
481 return -1; in ssb_gpio_unregister()