1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * twl6030-irq.c - TWL6030 irq support
5  * Copyright (C) 2005-2009 Texas Instruments, Inc.
17  * Jagadeesh Bhaskar Pakaravoor <j-pakaravoor@ti.com>
32 #include "twl-core.h"
41  * We set up IRQs starting at a platform-specified base. An interrupt map table,
57 	BATDETECT_INTR_OFFSET,	/* Bit 9	BAT			*/
86 	BATDETECT_INTR_OFFSET,	/* Bit 9	BAT			*/
104 /*----------------------------------------------------------------------*/
128 		chained_wakeups = atomic_read(&pdata->wakeirqs);  in twl6030_irq_pm_notifier()
130 		if (chained_wakeups && !pdata->irq_wake_enabled) {  in twl6030_irq_pm_notifier()
131 			if (enable_irq_wake(pdata->twl_irq))  in twl6030_irq_pm_notifier()
134 				pdata->irq_wake_enabled = true;  in twl6030_irq_pm_notifier()
135 		} else if (!chained_wakeups && pdata->irq_wake_enabled) {  in twl6030_irq_pm_notifier()
136 			disable_irq_wake(pdata->twl_irq);  in twl6030_irq_pm_notifier()
137 			pdata->irq_wake_enabled = false;  in twl6030_irq_pm_notifier()
140 		disable_irq(pdata->twl_irq);  in twl6030_irq_pm_notifier()
144 		enable_irq(pdata->twl_irq);  in twl6030_irq_pm_notifier()
190 				irq_find_mapping(pdata->irq_domain,  in twl6030_irq_thread()
191 						 pdata->irq_mapping_tbl[i]);  in twl6030_irq_thread()
217 /*----------------------------------------------------------------------*/
224 		atomic_inc(&pdata->wakeirqs);  in twl6030_irq_set_wake()
226 		atomic_dec(&pdata->wakeirqs);  in twl6030_irq_set_wake()
286 	/* Configuring PullUp-PullDown register */  in twl6030_mmc_card_detect_config()
303 	return irq_find_mapping(twl6030_irq->irq_domain,  in twl6030_mmc_card_detect_config()
310 	int ret = -EIO;  in twl6030_mmc_card_detect()
314 	if (pdev->id) {  in twl6030_mmc_card_detect()
318 		pr_err("Unknown MMC controller %d in %s\n", pdev->id, __func__);  in twl6030_mmc_card_detect()
323 	 * 0 - Card not present ,1 - Card present  in twl6030_mmc_card_detect()
336 	struct twl6030_irq *pdata = d->host_data;  in twl6030_irq_map()
339 	irq_set_chip_and_handler(virq,  &pdata->irq_chip, handle_simple_irq);  in twl6030_irq_map()
341 	irq_set_parent(virq, pdata->twl_irq);  in twl6030_irq_map()
367 	struct			device_node *node = dev->of_node;  in twl6030_init_irq()
374 	if (!of_id || !of_id->data) {  in twl6030_init_irq()
376 		return -EINVAL;  in twl6030_init_irq()
383 		return -ENOMEM;  in twl6030_init_irq()
405 	twl6030_irq->irq_chip = dummy_irq_chip;  in twl6030_init_irq()
406 	twl6030_irq->irq_chip.name = "twl6030";  in twl6030_init_irq()
407 	twl6030_irq->irq_chip.irq_set_type = NULL;  in twl6030_init_irq()
408 	twl6030_irq->irq_chip.irq_set_wake = twl6030_irq_set_wake;  in twl6030_init_irq()
410 	twl6030_irq->pm_nb.notifier_call = twl6030_irq_pm_notifier;  in twl6030_init_irq()
411 	atomic_set(&twl6030_irq->wakeirqs, 0);  in twl6030_init_irq()
412 	twl6030_irq->irq_mapping_tbl = of_id->data;  in twl6030_init_irq()
414 	twl6030_irq->irq_domain =  in twl6030_init_irq()
417 	if (!twl6030_irq->irq_domain) {  in twl6030_init_irq()
419 		return -ENOMEM;  in twl6030_init_irq()
426 				      IRQF_ONESHOT, "TWL6030-PIH", twl6030_irq);  in twl6030_init_irq()
432 	twl6030_irq->twl_irq = irq_num;  in twl6030_init_irq()
433 	register_pm_notifier(&twl6030_irq->pm_nb);  in twl6030_init_irq()
437 	irq_domain_remove(twl6030_irq->irq_domain);  in twl6030_init_irq()
443 	if (twl6030_irq && twl6030_irq->twl_irq) {  in twl6030_exit_irq()
444 		unregister_pm_notifier(&twl6030_irq->pm_nb);  in twl6030_exit_irq()
445 		free_irq(twl6030_irq->twl_irq, NULL);  in twl6030_exit_irq()