1 // SPDX-License-Identifier: GPL-2.0
50 	u32 control = readl_relaxed(fic->base + AL_FIC_CONTROL);  in al_fic_set_trigger()  local
54 		control &= ~CONTROL_TRIGGER_RISING;  in al_fic_set_trigger()
57 		control |= CONTROL_TRIGGER_RISING;  in al_fic_set_trigger()
59 	gc->chip_types->handler = handler;  in al_fic_set_trigger()
60 	fic->state = new_state;  in al_fic_set_trigger()
61 	writel_relaxed(control, fic->base + AL_FIC_CONTROL);  in al_fic_set_trigger()
67 	struct al_fic *fic = gc->private;  in al_fic_irq_set_type()
76 		ret = -EINVAL;  in al_fic_irq_set_type()
92 	if (fic->state == AL_FIC_UNCONFIGURED) {  in al_fic_irq_set_type()
94 	} else if (fic->state != new_state) {  in al_fic_irq_set_type()
96 			 fic->name, fic->state);  in al_fic_irq_set_type()
97 		ret = -EINVAL;  in al_fic_irq_set_type()
110 	struct irq_domain *domain = fic->domain;  in al_fic_irq_handler()
118 	pending = readl_relaxed(fic->base + AL_FIC_CAUSE);  in al_fic_irq_handler()
119 	pending &= ~gc->mask_cache;  in al_fic_irq_handler()
130 	struct al_fic *fic = gc->private;  in al_fic_irq_retrigger()
132 	writel_relaxed(BIT(data->hwirq), fic->base + AL_FIC_SET_CAUSE);  in al_fic_irq_retrigger()
143 	fic->domain = irq_domain_add_linear(node,  in al_fic_register()
147 	if (!fic->domain) {  in al_fic_register()
149 		return -ENOMEM;  in al_fic_register()
152 	ret = irq_alloc_domain_generic_chips(fic->domain,  in al_fic_register()
154 					     1, fic->name,  in al_fic_register()
162 	gc = irq_get_domain_generic_chip(fic->domain, 0);  in al_fic_register()
163 	gc->reg_base = fic->base;  in al_fic_register()
164 	gc->chip_types->regs.mask = AL_FIC_MASK;  in al_fic_register()
165 	gc->chip_types->regs.ack = AL_FIC_CAUSE;  in al_fic_register()
166 	gc->chip_types->chip.irq_mask = irq_gc_mask_set_bit;  in al_fic_register()
167 	gc->chip_types->chip.irq_unmask = irq_gc_mask_clr_bit;  in al_fic_register()
168 	gc->chip_types->chip.irq_ack = irq_gc_ack_clr_bit;  in al_fic_register()
169 	gc->chip_types->chip.irq_set_type = al_fic_irq_set_type;  in al_fic_register()
170 	gc->chip_types->chip.irq_retrigger = al_fic_irq_retrigger;  in al_fic_register()
171 	gc->chip_types->chip.flags = IRQCHIP_SKIP_SET_WAKE;  in al_fic_register()
172 	gc->private = fic;  in al_fic_register()
174 	irq_set_chained_handler_and_data(fic->parent_irq,  in al_fic_register()
180 	irq_domain_remove(fic->domain);  in al_fic_register()
186  * al_fic_wire_init() - initialize and configure fic in wire mode
190  * @parent_irq: interrupt of parent
194  * Interrupt can be generated based on positive edge or level - configuration is
204 	u32 control = CONTROL_MASK_MSI_X;  in al_fic_wire_init()  local
208 		return ERR_PTR(-ENOMEM);  in al_fic_wire_init()
210 	fic->base = base;  in al_fic_wire_init()
211 	fic->parent_irq = parent_irq;  in al_fic_wire_init()
212 	fic->name = name;  in al_fic_wire_init()
215 	writel_relaxed(0xFFFFFFFF, fic->base + AL_FIC_MASK);  in al_fic_wire_init()
218 	writel_relaxed(0, fic->base + AL_FIC_CAUSE);  in al_fic_wire_init()
220 	writel_relaxed(control, fic->base + AL_FIC_CONTROL);  in al_fic_wire_init()
228 	pr_debug("%s initialized successfully in Legacy mode (parent-irq=%u)\n",  in al_fic_wire_init()
229 		 fic->name, parent_irq);  in al_fic_wire_init()
239 				 struct device_node *parent)  in al_fic_init_dt()  argument
246 	if (!parent) {  in al_fic_init_dt()
247 		pr_err("%s: unsupported - device require a parent\n",  in al_fic_init_dt()
248 		       node->name);  in al_fic_init_dt()
249 		return -EINVAL;  in al_fic_init_dt()
254 		pr_err("%s: fail to map memory\n", node->name);  in al_fic_init_dt()
255 		return -ENOMEM;  in al_fic_init_dt()
260 		pr_err("%s: fail to map irq\n", node->name);  in al_fic_init_dt()
261 		ret = -EINVAL;  in al_fic_init_dt()
267 			       node->name,  in al_fic_init_dt()
271 		       node->name,  in al_fic_init_dt()
287 IRQCHIP_DECLARE(al_fic, "amazon,al-fic", al_fic_init_dt);