2  * Ingenic JZ47xx GPIO driver
9 #include <linux/gpio/driver.h>
54 	regmap_read(jzgc->map, jzgc->reg_base + reg, &val);  in gpio_ingenic_read_reg()
67 	regmap_write(jzgc->map, jzgc->reg_base + reg, BIT(offset));  in gpio_ingenic_set_bit()
79 	if (jzgc->version >= ID_JZ4770)  in gpio_set_value()
90 	if (jzgc->version >= ID_JZ4770) {  in irq_set_type()
124 	gpio_ingenic_set_bit(jzgc, GPIO_MSK, irqd->hwirq, true);  in ingenic_gpio_irq_mask()
132 	gpio_ingenic_set_bit(jzgc, GPIO_MSK, irqd->hwirq, false);  in ingenic_gpio_irq_unmask()
139 	int irq = irqd->hwirq;  in ingenic_gpio_irq_enable()
141 	if (jzgc->version >= ID_JZ4770)  in ingenic_gpio_irq_enable()
153 	int irq = irqd->hwirq;  in ingenic_gpio_irq_disable()
157 	if (jzgc->version >= ID_JZ4770)  in ingenic_gpio_irq_disable()
167 	int irq = irqd->hwirq;  in ingenic_gpio_irq_ack()
182 	if (jzgc->version >= ID_JZ4770)  in ingenic_gpio_irq_ack()
210 		 * best we can do is to set up a single-edge interrupt and then  in ingenic_gpio_irq_set_type()
213 		bool high = gpio_get_value(jzgc, irqd->hwirq);  in ingenic_gpio_irq_set_type()
218 	irq_set_type(jzgc, irqd->hwirq, type);  in ingenic_gpio_irq_set_type()
227 	return irq_set_irq_wake(jzgc->irq, on);  in ingenic_gpio_irq_set_wake()
234 	struct irq_chip *irq_chip = irq_data_get_irq_chip(&desc->irq_data);  in ingenic_gpio_irq_handler()
239 	if (jzgc->version >= ID_JZ4770)  in ingenic_gpio_irq_handler()
245 		generic_handle_irq(irq_linear_revmap(gc->irq.domain, i));  in ingenic_gpio_irq_handler()
267 	return pinctrl_gpio_direction_input(gc->base + offset);  in ingenic_gpio_direction_input()
274 	return pinctrl_gpio_direction_output(gc->base + offset);  in ingenic_gpio_direction_output()
278 	{ .compatible = "ingenic,jz4740-gpio", .data = (void *)ID_JZ4740 },
279 	{ .compatible = "ingenic,jz4770-gpio", .data = (void *)ID_JZ4770 },
280 	{ .compatible = "ingenic,jz4780-gpio", .data = (void *)ID_JZ4780 },
287 	struct device *dev = &pdev->dev;  in ingenic_gpio_probe()
294 		return -ENOMEM;  in ingenic_gpio_probe()
296 	jzgc->map = dev_get_drvdata(dev->parent);  in ingenic_gpio_probe()
297 	if (!jzgc->map) {  in ingenic_gpio_probe()
299 		return -ENXIO;  in ingenic_gpio_probe()
302 	err = of_property_read_u32(dev->of_node, "reg", &bank);  in ingenic_gpio_probe()
308 	jzgc->reg_base = bank * 0x100;  in ingenic_gpio_probe()
310 	jzgc->gc.label = devm_kasprintf(dev, GFP_KERNEL, "GPIO%c", 'A' + bank);  in ingenic_gpio_probe()
311 	if (!jzgc->gc.label)  in ingenic_gpio_probe()
312 		return -ENOMEM;  in ingenic_gpio_probe()
314 	/* DO NOT EXPAND THIS: FOR BACKWARD GPIO NUMBERSPACE COMPATIBIBILITY  in ingenic_gpio_probe()
315 	 * ONLY: WORK TO TRANSITION CONSUMERS TO USE THE GPIO DESCRIPTOR API IN  in ingenic_gpio_probe()
316 	 * <linux/gpio/consumer.h> INSTEAD.  in ingenic_gpio_probe()
318 	jzgc->gc.base = bank * 32;  in ingenic_gpio_probe()
320 	jzgc->gc.ngpio = 32;  in ingenic_gpio_probe()
321 	jzgc->gc.parent = dev;  in ingenic_gpio_probe()
322 	jzgc->gc.of_node = dev->of_node;  in ingenic_gpio_probe()
323 	jzgc->gc.owner = THIS_MODULE;  in ingenic_gpio_probe()
324 	jzgc->version = (enum jz_version)of_device_get_match_data(dev);  in ingenic_gpio_probe()
326 	jzgc->gc.set = ingenic_gpio_set;  in ingenic_gpio_probe()
327 	jzgc->gc.get = ingenic_gpio_get;  in ingenic_gpio_probe()
328 	jzgc->gc.direction_input = ingenic_gpio_direction_input;  in ingenic_gpio_probe()
329 	jzgc->gc.direction_output = ingenic_gpio_direction_output;  in ingenic_gpio_probe()
331 	if (of_property_read_bool(dev->of_node, "gpio-ranges")) {  in ingenic_gpio_probe()
332 		jzgc->gc.request = gpiochip_generic_request;  in ingenic_gpio_probe()
333 		jzgc->gc.free = gpiochip_generic_free;  in ingenic_gpio_probe()
336 	err = devm_gpiochip_add_data(dev, &jzgc->gc, jzgc);  in ingenic_gpio_probe()
340 	jzgc->irq = irq_of_parse_and_map(dev->of_node, 0);  in ingenic_gpio_probe()
341 	if (!jzgc->irq)  in ingenic_gpio_probe()
342 		return -EINVAL;  in ingenic_gpio_probe()
344 	jzgc->irq_chip.name = jzgc->gc.label;  in ingenic_gpio_probe()
345 	jzgc->irq_chip.irq_enable = ingenic_gpio_irq_enable;  in ingenic_gpio_probe()
346 	jzgc->irq_chip.irq_disable = ingenic_gpio_irq_disable;  in ingenic_gpio_probe()
347 	jzgc->irq_chip.irq_unmask = ingenic_gpio_irq_unmask;  in ingenic_gpio_probe()
348 	jzgc->irq_chip.irq_mask = ingenic_gpio_irq_mask;  in ingenic_gpio_probe()
349 	jzgc->irq_chip.irq_ack = ingenic_gpio_irq_ack;  in ingenic_gpio_probe()
350 	jzgc->irq_chip.irq_set_type = ingenic_gpio_irq_set_type;  in ingenic_gpio_probe()
351 	jzgc->irq_chip.irq_set_wake = ingenic_gpio_irq_set_wake;  in ingenic_gpio_probe()
352 	jzgc->irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND;  in ingenic_gpio_probe()
354 	err = gpiochip_irqchip_add(&jzgc->gc, &jzgc->irq_chip, 0,  in ingenic_gpio_probe()
359 	gpiochip_set_chained_irqchip(&jzgc->gc, &jzgc->irq_chip,  in ingenic_gpio_probe()
360 			jzgc->irq, ingenic_gpio_irq_handler);  in ingenic_gpio_probe()
371 		.name = "gpio-ingenic",
391 MODULE_DESCRIPTION("Ingenic JZ47xx GPIO driver");