51 static void __iomem *mtk_eint_get_offset(struct mtk_eint *eint,  in mtk_eint_get_offset()  argument
58 	if (eint_num >= eint->hw->ap_num)  in mtk_eint_get_offset()
59 		eint_base = eint->hw->ap_num;  in mtk_eint_get_offset()
61 	reg = eint->base + offset + ((eint_num - eint_base) / 32) * 4;  in mtk_eint_get_offset()
66 static unsigned int mtk_eint_can_en_debounce(struct mtk_eint *eint,  in mtk_eint_can_en_debounce()  argument
71 	void __iomem *reg = mtk_eint_get_offset(eint, eint_num,  in mtk_eint_can_en_debounce()
72 						eint->regs->sens);  in mtk_eint_can_en_debounce()
79 	if (eint_num < eint->hw->db_cnt && sens != MTK_EINT_EDGE_SENSITIVE)  in mtk_eint_can_en_debounce()
85 static int mtk_eint_flip_edge(struct mtk_eint *eint, int hwirq)  in mtk_eint_flip_edge()  argument
90 	u32 port = (hwirq >> 5) & eint->hw->port_mask;  in mtk_eint_flip_edge()
91 	void __iomem *reg = eint->base + (port << 2);  in mtk_eint_flip_edge()
93 	curr_level = eint->gpio_xlate->get_gpio_state(eint->pctl, hwirq);  in mtk_eint_flip_edge()
98 			reg_offset = eint->regs->pol_clr;  in mtk_eint_flip_edge()
100 			reg_offset = eint->regs->pol_set;  in mtk_eint_flip_edge()
103 		curr_level = eint->gpio_xlate->get_gpio_state(eint->pctl,  in mtk_eint_flip_edge()
112 	struct mtk_eint *eint = irq_data_get_irq_chip_data(d);  in mtk_eint_mask()  local
114 	void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,  in mtk_eint_mask()
115 						eint->regs->mask_set);  in mtk_eint_mask()
117 	eint->cur_mask[d->hwirq >> 5] &= ~mask;  in mtk_eint_mask()
124 	struct mtk_eint *eint = irq_data_get_irq_chip_data(d);  in mtk_eint_unmask()  local
126 	void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,  in mtk_eint_unmask()
127 						eint->regs->mask_clr);  in mtk_eint_unmask()
129 	eint->cur_mask[d->hwirq >> 5] |= mask;  in mtk_eint_unmask()
133 	if (eint->dual_edge[d->hwirq])  in mtk_eint_unmask()
134 		mtk_eint_flip_edge(eint, d->hwirq);  in mtk_eint_unmask()
137 static unsigned int mtk_eint_get_mask(struct mtk_eint *eint,  in mtk_eint_get_mask()  argument
141 	void __iomem *reg = mtk_eint_get_offset(eint, eint_num,  in mtk_eint_get_mask()
142 						eint->regs->mask);  in mtk_eint_get_mask()
149 	struct mtk_eint *eint = irq_data_get_irq_chip_data(d);  in mtk_eint_ack()  local
151 	void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,  in mtk_eint_ack()
152 						eint->regs->ack);  in mtk_eint_ack()
159 	struct mtk_eint *eint = irq_data_get_irq_chip_data(d);  in mtk_eint_set_type()  local
165 		dev_err(eint->dev,  in mtk_eint_set_type()
172 		eint->dual_edge[d->hwirq] = 1;  in mtk_eint_set_type()
174 		eint->dual_edge[d->hwirq] = 0;  in mtk_eint_set_type()
177 		reg = mtk_eint_get_offset(eint, d->hwirq, eint->regs->pol_clr);  in mtk_eint_set_type()
180 		reg = mtk_eint_get_offset(eint, d->hwirq, eint->regs->pol_set);  in mtk_eint_set_type()
185 		reg = mtk_eint_get_offset(eint, d->hwirq, eint->regs->sens_clr);  in mtk_eint_set_type()
188 		reg = mtk_eint_get_offset(eint, d->hwirq, eint->regs->sens_set);  in mtk_eint_set_type()
192 	if (eint->dual_edge[d->hwirq])  in mtk_eint_set_type()
193 		mtk_eint_flip_edge(eint, d->hwirq);  in mtk_eint_set_type()
200 	struct mtk_eint *eint = irq_data_get_irq_chip_data(d);  in mtk_eint_irq_set_wake()  local
205 		eint->wake_mask[reg] |= BIT(shift);  in mtk_eint_irq_set_wake()
207 		eint->wake_mask[reg] &= ~BIT(shift);  in mtk_eint_irq_set_wake()
212 static void mtk_eint_chip_write_mask(const struct mtk_eint *eint,  in mtk_eint_chip_write_mask()  argument
218 	for (port = 0; port < eint->hw->ports; port++) {  in mtk_eint_chip_write_mask()
220 		writel_relaxed(~buf[port], reg + eint->regs->mask_set);  in mtk_eint_chip_write_mask()
221 		writel_relaxed(buf[port], reg + eint->regs->mask_clr);  in mtk_eint_chip_write_mask()
227 	struct mtk_eint *eint = irq_data_get_irq_chip_data(d);  in mtk_eint_irq_request_resources()  local
232 	err = eint->gpio_xlate->get_gpio_n(eint->pctl, d->hwirq,  in mtk_eint_irq_request_resources()
235 		dev_err(eint->dev, "Can not find pin\n");  in mtk_eint_irq_request_resources()
241 		dev_err(eint->dev, "unable to lock HW IRQ %lu for IRQ\n",  in mtk_eint_irq_request_resources()
246 	err = eint->gpio_xlate->set_gpio_as_eint(eint->pctl, d->hwirq);  in mtk_eint_irq_request_resources()
248 		dev_err(eint->dev, "Can not eint mode\n");  in mtk_eint_irq_request_resources()
257 	struct mtk_eint *eint = irq_data_get_irq_chip_data(d);  in mtk_eint_irq_release_resources()  local
261 	eint->gpio_xlate->get_gpio_n(eint->pctl, d->hwirq, &gpio_n,  in mtk_eint_irq_release_resources()
279 static unsigned int mtk_eint_hw_init(struct mtk_eint *eint)  in mtk_eint_hw_init()  argument
281 	void __iomem *reg = eint->base + eint->regs->dom_en;  in mtk_eint_hw_init()
284 	for (i = 0; i < eint->hw->ap_num; i += 32) {  in mtk_eint_hw_init()
293 mtk_eint_debounce_process(struct mtk_eint *eint, int index)  in mtk_eint_debounce_process()  argument
298 	ctrl_offset = (index / 4) * 4 + eint->regs->dbnc_ctrl;  in mtk_eint_debounce_process()
299 	dbnc = readl(eint->base + ctrl_offset);  in mtk_eint_debounce_process()
302 		ctrl_offset = (index / 4) * 4 + eint->regs->dbnc_set;  in mtk_eint_debounce_process()
304 		writel(rst, eint->base + ctrl_offset);  in mtk_eint_debounce_process()
311 	struct mtk_eint *eint = irq_desc_get_handler_data(desc);  in mtk_eint_irq_handler()  local
314 	void __iomem *reg =  mtk_eint_get_offset(eint, 0, eint->regs->stat);  in mtk_eint_irq_handler()
318 	for (eint_num = 0; eint_num < eint->hw->ap_num; eint_num += 32,  in mtk_eint_irq_handler()
325 			virq = irq_find_mapping(eint->domain, index);  in mtk_eint_irq_handler()
334 			if (eint->wake_mask[mask_offset] & BIT(offset) &&  in mtk_eint_irq_handler()
335 			    !(eint->cur_mask[mask_offset] & BIT(offset))) {  in mtk_eint_irq_handler()
337 					eint->regs->stat +  in mtk_eint_irq_handler()
338 					eint->regs->mask_set);  in mtk_eint_irq_handler()
341 			dual_edge = eint->dual_edge[index];  in mtk_eint_irq_handler()
347 				writel(BIT(offset), reg - eint->regs->stat +  in mtk_eint_irq_handler()
348 				       eint->regs->soft_clr);  in mtk_eint_irq_handler()
351 				eint->gpio_xlate->get_gpio_state(eint->pctl,  in mtk_eint_irq_handler()
358 				curr_level = mtk_eint_flip_edge(eint, index);  in mtk_eint_irq_handler()
366 					       eint->regs->stat +  in mtk_eint_irq_handler()
367 					       eint->regs->soft_set);  in mtk_eint_irq_handler()
370 			if (index < eint->hw->db_cnt)  in mtk_eint_irq_handler()
371 				mtk_eint_debounce_process(eint, index);  in mtk_eint_irq_handler()
377 int mtk_eint_do_suspend(struct mtk_eint *eint)  in mtk_eint_do_suspend()  argument
379 	mtk_eint_chip_write_mask(eint, eint->base, eint->wake_mask);  in mtk_eint_do_suspend()
385 int mtk_eint_do_resume(struct mtk_eint *eint)  in mtk_eint_do_resume()  argument
387 	mtk_eint_chip_write_mask(eint, eint->base, eint->cur_mask);  in mtk_eint_do_resume()
393 int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_num,  in mtk_eint_set_debounce()  argument
403 	virq = irq_find_mapping(eint->domain, eint_num);  in mtk_eint_set_debounce()
407 	set_offset = (eint_num / 4) * 4 + eint->regs->dbnc_set;  in mtk_eint_set_debounce()
408 	clr_offset = (eint_num / 4) * 4 + eint->regs->dbnc_clr;  in mtk_eint_set_debounce()
410 	if (!mtk_eint_can_en_debounce(eint, eint_num))  in mtk_eint_set_debounce()
421 	if (!mtk_eint_get_mask(eint, eint_num)) {  in mtk_eint_set_debounce()
429 	writel(clr_bit, eint->base + clr_offset);  in mtk_eint_set_debounce()
434 	writel(rst | bit, eint->base + set_offset);  in mtk_eint_set_debounce()
448 int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n)  in mtk_eint_find_irq()  argument
452 	irq = irq_find_mapping(eint->domain, eint_n);  in mtk_eint_find_irq()
460 int mtk_eint_do_init(struct mtk_eint *eint)  in mtk_eint_do_init()  argument
465 	if (!eint->regs)  in mtk_eint_do_init()
466 		eint->regs = &mtk_generic_eint_regs;  in mtk_eint_do_init()
468 	eint->wake_mask = devm_kcalloc(eint->dev, eint->hw->ports,  in mtk_eint_do_init()
469 				       sizeof(*eint->wake_mask), GFP_KERNEL);  in mtk_eint_do_init()
470 	if (!eint->wake_mask)  in mtk_eint_do_init()
473 	eint->cur_mask = devm_kcalloc(eint->dev, eint->hw->ports,  in mtk_eint_do_init()
474 				      sizeof(*eint->cur_mask), GFP_KERNEL);  in mtk_eint_do_init()
475 	if (!eint->cur_mask)  in mtk_eint_do_init()
478 	eint->dual_edge = devm_kcalloc(eint->dev, eint->hw->ap_num,  in mtk_eint_do_init()
480 	if (!eint->dual_edge)  in mtk_eint_do_init()
483 	eint->domain = irq_domain_add_linear(eint->dev->of_node,  in mtk_eint_do_init()
484 					     eint->hw->ap_num,  in mtk_eint_do_init()
486 	if (!eint->domain)  in mtk_eint_do_init()
489 	mtk_eint_hw_init(eint);  in mtk_eint_do_init()
490 	for (i = 0; i < eint->hw->ap_num; i++) {  in mtk_eint_do_init()
491 		int virq = irq_create_mapping(eint->domain, i);  in mtk_eint_do_init()
495 		irq_set_chip_data(virq, eint);  in mtk_eint_do_init()
498 	irq_set_chained_handler_and_data(eint->irq, mtk_eint_irq_handler,  in mtk_eint_do_init()
499 					 eint);  in mtk_eint_do_init()