1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
4  * Author Mark-PK Tsai <mark-pk.tsai@mediatek.com>
37 	raw_spin_lock_irqsave(&cd->lock, flags);  in mst_set_irq()
38 	val = readw_relaxed(cd->base + offset) | mask;  in mst_set_irq()
39 	writew_relaxed(val, cd->base + offset);  in mst_set_irq()
40 	raw_spin_unlock_irqrestore(&cd->lock, flags);  in mst_set_irq()
53 	raw_spin_lock_irqsave(&cd->lock, flags);  in mst_clear_irq()
54 	val = readw_relaxed(cd->base + offset) & ~mask;  in mst_clear_irq()
55 	writew_relaxed(val, cd->base + offset);  in mst_clear_irq()
56 	raw_spin_unlock_irqrestore(&cd->lock, flags);  in mst_clear_irq()
75 	if (!cd->no_eoi)  in mst_intc_eoi_irq()
82 	.name			= "mst-intc",
102 	struct mst_intc_chip_data *cd = d->host_data;  in mst_intc_domain_translate()
104 	if (is_of_node(fwspec->fwnode)) {  in mst_intc_domain_translate()
105 		if (fwspec->param_count != 3)  in mst_intc_domain_translate()
106 			return -EINVAL;  in mst_intc_domain_translate()
108 		/* No PPI should point to this domain */  in mst_intc_domain_translate()
109 		if (fwspec->param[0] != 0)  in mst_intc_domain_translate()
110 			return -EINVAL;  in mst_intc_domain_translate()
112 		if (fwspec->param[1] >= cd->nr_irqs)  in mst_intc_domain_translate()
113 			return -EINVAL;  in mst_intc_domain_translate()
115 		*hwirq = fwspec->param[1];  in mst_intc_domain_translate()
116 		*type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;  in mst_intc_domain_translate()
120 	return -EINVAL;  in mst_intc_domain_translate()
129 	struct mst_intc_chip_data *cd = domain->host_data;  in mst_intc_domain_alloc()
132 	if (fwspec->param_count != 3)  in mst_intc_domain_alloc()
133 		return -EINVAL;  in mst_intc_domain_alloc()
135 	/* No PPI should point to this domain */  in mst_intc_domain_alloc()
136 	if (fwspec->param[0])  in mst_intc_domain_alloc()
137 		return -EINVAL;  in mst_intc_domain_alloc()
139 	hwirq = fwspec->param[1];  in mst_intc_domain_alloc()
143 					      domain->host_data);  in mst_intc_domain_alloc()
146 	parent_fwspec.fwnode = domain->parent->fwnode;  in mst_intc_domain_alloc()
147 	parent_fwspec.param[1] = cd->irq_start + hwirq;  in mst_intc_domain_alloc()
166 		pr_err("mst-intc: interrupt-parent not found\n");  in mst_intc_of_init()
167 		return -EINVAL;  in mst_intc_of_init()
170 	if (of_property_read_u32_index(dn, "mstar,irqs-map-range", 0, &irq_start) ||  in mst_intc_of_init()
171 	    of_property_read_u32_index(dn, "mstar,irqs-map-range", 1, &irq_end))  in mst_intc_of_init()
172 		return -EINVAL;  in mst_intc_of_init()
176 		return -ENOMEM;  in mst_intc_of_init()
178 	cd->base = of_iomap(dn, 0);  in mst_intc_of_init()
179 	if (!cd->base) {  in mst_intc_of_init()
181 		return -ENOMEM;  in mst_intc_of_init()
184 	cd->no_eoi = of_property_read_bool(dn, "mstar,intc-no-eoi");  in mst_intc_of_init()
185 	raw_spin_lock_init(&cd->lock);  in mst_intc_of_init()
186 	cd->irq_start = irq_start;  in mst_intc_of_init()
187 	cd->nr_irqs = irq_end - irq_start + 1;  in mst_intc_of_init()
188 	domain = irq_domain_add_hierarchy(domain_parent, 0, cd->nr_irqs, dn,  in mst_intc_of_init()
191 		iounmap(cd->base);  in mst_intc_of_init()
193 		return -ENOMEM;  in mst_intc_of_init()
199 IRQCHIP_DECLARE(mst_intc, "mstar,mst-intc", mst_intc_of_init);