staging/greybus/gpio.c

67 static int gb_gpio_activate_operation(struct gb_gpio_controller *ggc, u8 which)
77 	request.which = which;
85 	ggc->lines[which].active = true;
91 					 u8 which)
98 	request.which = which;
102 		dev_err(dev, "failed to deactivate gpio %u\n", which);
106 	ggc->lines[which].active = false;
113 					   u8 which)
121 	request.which = which;
131 			 which, direction);
133 	ggc->lines[which].direction = direction ? 1 : 0;
138 					  u8 which)
143 	request.which = which;
147 		ggc->lines[which].direction = 1;
152 					   u8 which, bool value_high)
157 	request.which = which;
162 		ggc->lines[which].direction = 0;
167 				       u8 which)
175 	request.which = which;
180 		dev_err(dev, "failed to get value of gpio %u\n", which);
187 			 which, value);
189 	ggc->lines[which].value = value ? 1 : 0;
194 					u8 which, bool value_high)
200 	if (ggc->lines[which].direction == 1) {
202 			 which);
206 	request.which = which;
211 		dev_err(dev, "failed to set value of gpio %u\n", which);
215 	ggc->lines[which].value = request.value;
219 					  u8 which, u16 debounce_usec)
224 	request.which = which;
229 		ggc->lines[which].debounce_usec = debounce_usec;
239 	request.which = hwirq;
253 	request.which = hwirq;
268 	request.which = hwirq;
390 	if (event->which > ggc->line_max) {
391 		dev_err(dev, "invalid hw irq: %d\n", event->which);
395 	irq = irq_find_mapping(ggc->chip.irq.domain, event->which);
425 	u8 which;
428 	which = (u8)offset;
429 	ret = gb_gpio_get_direction_operation(ggc, which);
433 	return ggc->lines[which].direction ? 1 : 0;
454 	u8 which;
457 	which = (u8)offset;
458 	ret = gb_gpio_get_value_operation(ggc, which);
462 	return ggc->lines[which].value;