1 // SPDX-License-Identifier: GPL-2.0
13 #include <linux/interrupt.h>
31 	void __iomem *base;  member
48 	spin_lock_irqsave(&priv->lock, flags);  in visconti_gpio_irq_set_type()
50 	odata = readl(priv->base + GPIO_ODATA);  in visconti_gpio_irq_set_type()
51 	intmode = readl(priv->base + GPIO_INTMODE);  in visconti_gpio_irq_set_type()
76 		ret = -EINVAL;  in visconti_gpio_irq_set_type()
80 	writel(odata, priv->base + GPIO_ODATA);  in visconti_gpio_irq_set_type()
81 	writel(intmode, priv->base + GPIO_INTMODE);  in visconti_gpio_irq_set_type()
86 	spin_unlock_irqrestore(&priv->lock, flags);  in visconti_gpio_irq_set_type()
91 					       unsigned int child,  in visconti_gpio_child_to_parent_hwirq()  argument
97 	if (child < 16) {  in visconti_gpio_child_to_parent_hwirq()
100 		*parent = child + BASE_HW_IRQ;  in visconti_gpio_child_to_parent_hwirq()
103 	return -EINVAL;  in visconti_gpio_child_to_parent_hwirq()
116 	fwspec->fwnode = chip->irq.parent_domain->fwnode;  in visconti_gpio_populate_parent_fwspec()
117 	fwspec->param_count = 3;  in visconti_gpio_populate_parent_fwspec()
118 	fwspec->param[0] = 0;  in visconti_gpio_populate_parent_fwspec()
119 	fwspec->param[1] = parent_hwirq;  in visconti_gpio_populate_parent_fwspec()
120 	fwspec->param[2] = parent_type;  in visconti_gpio_populate_parent_fwspec()
127 	struct device *dev = &pdev->dev;  in visconti_gpio_probe()
138 		return -ENOMEM;  in visconti_gpio_probe()
140 	spin_lock_init(&priv->lock);  in visconti_gpio_probe()
142 	priv->base = devm_platform_ioremap_resource(pdev, 0);  in visconti_gpio_probe()
143 	if (IS_ERR(priv->base))  in visconti_gpio_probe()
144 		return PTR_ERR(priv->base);  in visconti_gpio_probe()
146 	irq_parent = of_irq_find_parent(dev->of_node);  in visconti_gpio_probe()
149 		return -ENODEV;  in visconti_gpio_probe()
155 		return -ENODEV;  in visconti_gpio_probe()
161 	ret = bgpio_init(&priv->gpio_chip, dev, 4,  in visconti_gpio_probe()
162 			 priv->base + GPIO_IDATA,  in visconti_gpio_probe()
163 			 priv->base + GPIO_OSET,  in visconti_gpio_probe()
164 			 priv->base + GPIO_OCLR,  in visconti_gpio_probe()
165 			 priv->base + GPIO_DIR,  in visconti_gpio_probe()
173 	irq_chip = &priv->irq_chip;  in visconti_gpio_probe()
174 	irq_chip->name = dev_name(dev);  in visconti_gpio_probe()
175 	irq_chip->irq_mask = irq_chip_mask_parent;  in visconti_gpio_probe()
176 	irq_chip->irq_unmask = irq_chip_unmask_parent;  in visconti_gpio_probe()
177 	irq_chip->irq_eoi = irq_chip_eoi_parent;  in visconti_gpio_probe()
178 	irq_chip->irq_set_type = visconti_gpio_irq_set_type;  in visconti_gpio_probe()
179 	irq_chip->flags = IRQCHIP_SET_TYPE_MASKED | IRQCHIP_MASK_ON_SUSPEND;  in visconti_gpio_probe()
181 	girq = &priv->gpio_chip.irq;  in visconti_gpio_probe()
182 	girq->chip = irq_chip;  in visconti_gpio_probe()
183 	girq->fwnode = fwnode;  in visconti_gpio_probe()
184 	girq->parent_domain = parent;  in visconti_gpio_probe()
185 	girq->child_to_parent_hwirq = visconti_gpio_child_to_parent_hwirq;  in visconti_gpio_probe()
186 	girq->populate_parent_alloc_arg = visconti_gpio_populate_parent_fwspec;  in visconti_gpio_probe()
187 	girq->default_type = IRQ_TYPE_NONE;  in visconti_gpio_probe()
188 	girq->handler = handle_level_irq;  in visconti_gpio_probe()
190 	return devm_gpiochip_add_data(dev, &priv->gpio_chip, priv);  in visconti_gpio_probe()
194 	{ .compatible = "toshiba,gpio-tmpv7708", },