2  * Emma Mobile GPIO Support - GIO
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
73 		return ioread32(p->base0 + offs);  in em_gio_read()
75 		return ioread32(p->base1 + (offs - GIO_IDT0));  in em_gio_read()
82 		iowrite32(value, p->base0 + offs);  in em_gio_write()
84 		iowrite32(value, p->base1 + (offs - GIO_IDT0));  in em_gio_write()
106 	ret = gpiochip_lock_as_irq(&p->gpio_chip, irqd_to_hwirq(d));  in em_gio_irq_reqres()
108 		dev_err(p->gpio_chip.parent,  in em_gio_irq_reqres()
120 	gpiochip_unlock_as_irq(&p->gpio_chip, irqd_to_hwirq(d));  in em_gio_irq_relres()
143 		return -EINVAL;  in em_gio_irq_set_type()
147 	pr_debug("gio: sense irq = %d, mode = %d\n", offset, value);  in em_gio_irq_set_type()
153 	spin_lock_irqsave(&p->sense_lock, flags);  in em_gio_irq_set_type()
174 	spin_unlock_irqrestore(&p->sense_lock, flags);  in em_gio_irq_set_type()
188 		generic_handle_irq(irq_find_mapping(p->irq_domain, offset));  in em_gio_irq_handler()
225 		__em_gio_set(chip, GIO_OH, offset - 16, value);  in em_gio_set()
239 	return irq_create_mapping(gpio_to_priv(chip)->irq_domain, offset);  in em_gio_to_irq()
244 	return pinctrl_gpio_request(chip->base + offset);  in em_gio_request()
249 	pinctrl_gpio_free(chip->base + offset);  in em_gio_free()
260 	struct em_gio_priv *p = h->host_data;  in em_gio_irq_domain_map()
262 	pr_debug("gio: map hw irq = %d, irq = %d\n", (int)hwirq, irq);  in em_gio_irq_domain_map()
264 	irq_set_chip_data(irq, h->host_data);  in em_gio_irq_domain_map()
265 	irq_set_chip_and_handler(irq, &p->irq_chip, handle_level_irq);  in em_gio_irq_domain_map()
280 	const char *name = dev_name(&pdev->dev);  in em_gio_probe()
284 	p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);  in em_gio_probe()
286 		ret = -ENOMEM;  in em_gio_probe()
290 	p->pdev = pdev;  in em_gio_probe()
292 	spin_lock_init(&p->sense_lock);  in em_gio_probe()
300 		dev_err(&pdev->dev, "missing IRQ or IOMEM\n");  in em_gio_probe()
301 		ret = -EINVAL;  in em_gio_probe()
305 	p->base0 = devm_ioremap_nocache(&pdev->dev, io[0]->start,  in em_gio_probe()
307 	if (!p->base0) {  in em_gio_probe()
308 		dev_err(&pdev->dev, "failed to remap low I/O memory\n");  in em_gio_probe()
309 		ret = -ENXIO;  in em_gio_probe()
313 	p->base1 = devm_ioremap_nocache(&pdev->dev, io[1]->start,  in em_gio_probe()
315 	if (!p->base1) {  in em_gio_probe()
316 		dev_err(&pdev->dev, "failed to remap high I/O memory\n");  in em_gio_probe()
317 		ret = -ENXIO;  in em_gio_probe()
321 	if (of_property_read_u32(pdev->dev.of_node, "ngpios", &ngpios)) {  in em_gio_probe()
322 		dev_err(&pdev->dev, "Missing ngpios OF property\n");  in em_gio_probe()
323 		ret = -EINVAL;  in em_gio_probe()
327 	gpio_chip = &p->gpio_chip;  in em_gio_probe()
328 	gpio_chip->of_node = pdev->dev.of_node;  in em_gio_probe()
329 	gpio_chip->direction_input = em_gio_direction_input;  in em_gio_probe()
330 	gpio_chip->get = em_gio_get;  in em_gio_probe()
331 	gpio_chip->direction_output = em_gio_direction_output;  in em_gio_probe()
332 	gpio_chip->set = em_gio_set;  in em_gio_probe()
333 	gpio_chip->to_irq = em_gio_to_irq;  in em_gio_probe()
334 	gpio_chip->request = em_gio_request;  in em_gio_probe()
335 	gpio_chip->free = em_gio_free;  in em_gio_probe()
336 	gpio_chip->label = name;  in em_gio_probe()
337 	gpio_chip->parent = &pdev->dev;  in em_gio_probe()
338 	gpio_chip->owner = THIS_MODULE;  in em_gio_probe()
339 	gpio_chip->base = -1;  in em_gio_probe()
340 	gpio_chip->ngpio = ngpios;  in em_gio_probe()
342 	irq_chip = &p->irq_chip;  in em_gio_probe()
343 	irq_chip->name = name;  in em_gio_probe()
344 	irq_chip->irq_mask = em_gio_irq_disable;  in em_gio_probe()
345 	irq_chip->irq_unmask = em_gio_irq_enable;  in em_gio_probe()
346 	irq_chip->irq_set_type = em_gio_irq_set_type;  in em_gio_probe()
347 	irq_chip->irq_request_resources = em_gio_irq_reqres;  in em_gio_probe()
348 	irq_chip->irq_release_resources = em_gio_irq_relres;  in em_gio_probe()
349 	irq_chip->flags	= IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;  in em_gio_probe()
351 	p->irq_domain = irq_domain_add_simple(pdev->dev.of_node, ngpios, 0,  in em_gio_probe()
353 	if (!p->irq_domain) {  in em_gio_probe()
354 		ret = -ENXIO;  in em_gio_probe()
355 		dev_err(&pdev->dev, "cannot initialize irq domain\n");  in em_gio_probe()
359 	if (devm_request_irq(&pdev->dev, irq[0]->start,  in em_gio_probe()
361 		dev_err(&pdev->dev, "failed to request low IRQ\n");  in em_gio_probe()
362 		ret = -ENOENT;  in em_gio_probe()
366 	if (devm_request_irq(&pdev->dev, irq[1]->start,  in em_gio_probe()
368 		dev_err(&pdev->dev, "failed to request high IRQ\n");  in em_gio_probe()
369 		ret = -ENOENT;  in em_gio_probe()
375 		dev_err(&pdev->dev, "failed to add GPIO controller\n");  in em_gio_probe()
382 	irq_domain_remove(p->irq_domain);  in em_gio_probe()
391 	gpiochip_remove(&p->gpio_chip);  in em_gio_remove()
393 	irq_domain_remove(p->irq_domain);  in em_gio_remove()
398 	{ .compatible = "renesas,em-gio", },
425 MODULE_DESCRIPTION("Renesas Emma Mobile GIO Driver");