1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  arch/arm/mach-vt8500/irq.c
59 /* vt8500 has 1 intc, wm8505 and wm8650 have 2 */
72 	struct vt8500_irq_data *priv = d->domain->host_data;  in vt8500_irq_ack()
73 	void __iomem *base = priv->base;  in vt8500_irq_ack()
74 	void __iomem *stat_reg = base + VT8500_ICIS + (d->hwirq < 32 ? 0 : 4);  in vt8500_irq_ack()
75 	u32 status = (1 << (d->hwirq & 0x1f));  in vt8500_irq_ack()
82 	struct vt8500_irq_data *priv = d->domain->host_data;  in vt8500_irq_mask()
83 	void __iomem *base = priv->base;  in vt8500_irq_mask()
86 	dctr = readb(base + VT8500_ICDC + d->hwirq);  in vt8500_irq_mask()
88 	writeb(dctr, base + VT8500_ICDC + d->hwirq);  in vt8500_irq_mask()
93 	struct vt8500_irq_data *priv = d->domain->host_data;  in vt8500_irq_unmask()
94 	void __iomem *base = priv->base;  in vt8500_irq_unmask()
97 	dctr = readb(base + VT8500_ICDC + d->hwirq);  in vt8500_irq_unmask()
99 	writeb(dctr, base + VT8500_ICDC + d->hwirq);  in vt8500_irq_unmask()
104 	struct vt8500_irq_data *priv = d->domain->host_data;  in vt8500_irq_set_type()
105 	void __iomem *base = priv->base;  in vt8500_irq_set_type()
108 	dctr = readb(base + VT8500_ICDC + d->hwirq);  in vt8500_irq_set_type()
113 		return -EINVAL;  in vt8500_irq_set_type()
127 	writeb(dctr, base + VT8500_ICDC + d->hwirq);  in vt8500_irq_set_type()
133 	.name		= "vt8500",
166 static inline void vt8500_handle_irq_common(struct vt8500_irq_data *intc)  in vt8500_handle_irq_common()  argument
168 	unsigned long irqnr = readl_relaxed(intc->base) & 0x3F;  in vt8500_handle_irq_common()
176 		stat = readl_relaxed(intc->base + VT8500_ICIS + 4);  in vt8500_handle_irq_common()
181 	generic_handle_domain_irq(intc->domain, irqnr);  in vt8500_handle_irq_common()
193 	struct vt8500_irq_data *intc = d->host_data;  in vt8500_handle_irq_chained()  local
196 	vt8500_handle_irq_common(intc);  in vt8500_handle_irq_chained()
203 	struct vt8500_irq_data *intc;  in vt8500_irq_init()  local
206 	intc = kzalloc(sizeof(*intc), GFP_KERNEL);  in vt8500_irq_init()
207 	if (!intc)  in vt8500_irq_init()
208 		return -ENOMEM;  in vt8500_irq_init()
210 	intc->base = of_iomap(node, 0);  in vt8500_irq_init()
211 	if (!intc->base) {  in vt8500_irq_init()
213 		ret = -ENOMEM;  in vt8500_irq_init()
217 	intc->domain = irq_domain_create_linear(of_fwnode_handle(node), 64,  in vt8500_irq_init()
218 						&vt8500_irq_domain_ops, intc);  in vt8500_irq_init()
219 	if (!intc->domain) {  in vt8500_irq_init()
221 		ret = -ENOMEM;  in vt8500_irq_init()
225 	vt8500_init_irq_hw(intc->base);  in vt8500_irq_init()
227 	pr_info("vt8500-irq: Added interrupt controller\n");  in vt8500_irq_init()
234 							 intc);  in vt8500_irq_init()
237 		pr_info("vt8500-irq: Enabled slave->parent interrupts\n");  in vt8500_irq_init()
239 		primary_intc = intc;  in vt8500_irq_init()
245 	iounmap(intc->base);  in vt8500_irq_init()
247 	kfree(intc);  in vt8500_irq_init()
251 IRQCHIP_DECLARE(vt8500_irq, "via,vt8500-intc", vt8500_irq_init);