1 // SPDX-License-Identifier: GPL-2.0
3  * StarFive JH8100 External Interrupt Controller driver
10 #define pr_fmt(fmt) "irq-starfive-jh8100: " fmt
40 	value = ioread32(irqc->base + reg);  in starfive_intc_bit_set()
42 	iowrite32(value, irqc->base + reg);  in starfive_intc_bit_set()
50 	value = ioread32(irqc->base + reg);  in starfive_intc_bit_clear()
52 	iowrite32(value, irqc->base + reg);  in starfive_intc_bit_clear()
59 	raw_spin_lock(&irqc->lock);  in starfive_intc_unmask()
60 	starfive_intc_bit_clear(irqc, STARFIVE_INTC_SRC0_MASK, BIT(d->hwirq));  in starfive_intc_unmask()
61 	raw_spin_unlock(&irqc->lock);  in starfive_intc_unmask()
68 	raw_spin_lock(&irqc->lock);  in starfive_intc_mask()
69 	starfive_intc_bit_set(irqc, STARFIVE_INTC_SRC0_MASK, BIT(d->hwirq));  in starfive_intc_mask()
70 	raw_spin_unlock(&irqc->lock);  in starfive_intc_mask()
74 	.name		= "StarFive JH8100 INTC",
82 	irq_domain_set_info(d, irq, hwirq, &intc_dev, d->host_data,  in starfive_intc_map()
95 	struct starfive_irq_chip *irqc = irq_data_get_irq_handler_data(&desc->irq_data);  in starfive_intc_irq_handler()
102 	value = ioread32(irqc->base + STARFIVE_INTC_SRC0_INT);  in starfive_intc_irq_handler()
104 		hwirq = ffs(value) - 1;  in starfive_intc_irq_handler()
106 		generic_handle_domain_irq(irqc->domain, hwirq);  in starfive_intc_irq_handler()
117 static int __init starfive_intc_init(struct device_node *intc,  in starfive_intc_init()  argument
128 		return -ENOMEM;  in starfive_intc_init()
130 	irqc->base = of_iomap(intc, 0);  in starfive_intc_init()
131 	if (!irqc->base) {  in starfive_intc_init()
133 		ret = -ENXIO;  in starfive_intc_init()
137 	rst = of_reset_control_get_exclusive(intc, NULL);  in starfive_intc_init()
144 	clk = of_clk_get(intc, 0);  in starfive_intc_init()
159 	raw_spin_lock_init(&irqc->lock);  in starfive_intc_init()
161 	irqc->domain = irq_domain_add_linear(intc, STARFIVE_INTC_SRC_IRQ_NUM,  in starfive_intc_init()
163 	if (!irqc->domain) {  in starfive_intc_init()
165 		ret = -EINVAL;  in starfive_intc_init()
169 	parent_irq = of_irq_get(intc, 0);  in starfive_intc_init()
185 	irq_domain_remove(irqc->domain);  in starfive_intc_init()
195 	iounmap(irqc->base);  in starfive_intc_init()
202 IRQCHIP_MATCH("starfive,jh8100-intc", starfive_intc_init)
205 MODULE_DESCRIPTION("StarFive JH8100 External Interrupt Controller");