1 // SPDX-License-Identifier: GPL-2.0-or-later
6  *   Author: Lars-Peter Clausen <lars@metafoo.de>
9 #include <linux/interrupt.h>
31 	unsigned long direction = adis->irq_flag & IRQF_TRIGGER_MASK;  in adis_validate_irq_flag()
33 	/* We cannot mask the interrupt so ensure it's not enabled at request */  in adis_validate_irq_flag()
34 	if (adis->data->unmasked_drdy)  in adis_validate_irq_flag()
35 		adis->irq_flag |= IRQF_NO_AUTOEN;  in adis_validate_irq_flag()
39 	 * IMU devices with FIFO support have the watermark pin level driven  in adis_validate_irq_flag()
46 		adis->irq_flag |= IRQF_TRIGGER_RISING;  in adis_validate_irq_flag()
49 		   direction != IRQF_TRIGGER_FALLING && !adis->data->has_fifo) {  in adis_validate_irq_flag()
50 		dev_err(&adis->spi->dev, "Invalid IRQ mask: %08lx\n",  in adis_validate_irq_flag()
51 			adis->irq_flag);  in adis_validate_irq_flag()
52 		return -EINVAL;  in adis_validate_irq_flag()
54 		   direction != IRQF_TRIGGER_LOW && adis->data->has_fifo) {  in adis_validate_irq_flag()
55 		dev_err(&adis->spi->dev, "Invalid IRQ mask: %08lx\n",  in adis_validate_irq_flag()
56 			adis->irq_flag);  in adis_validate_irq_flag()
57 		return -EINVAL;  in adis_validate_irq_flag()
64  * devm_adis_probe_trigger() - Sets up trigger for a managed adis device
74 	adis->trig = devm_iio_trigger_alloc(&adis->spi->dev, "%s-dev%d",  in devm_adis_probe_trigger()
75 					    indio_dev->name,  in devm_adis_probe_trigger()
77 	if (!adis->trig)  in devm_adis_probe_trigger()
78 		return -ENOMEM;  in devm_adis_probe_trigger()
80 	adis->trig->ops = &adis_trigger_ops;  in devm_adis_probe_trigger()
81 	iio_trigger_set_drvdata(adis->trig, adis);  in devm_adis_probe_trigger()
87 	if (adis->data->has_fifo)  in devm_adis_probe_trigger()
88 		ret = devm_request_threaded_irq(&adis->spi->dev, adis->spi->irq,  in devm_adis_probe_trigger()
91 						adis->irq_flag | IRQF_ONESHOT,  in devm_adis_probe_trigger()
92 						indio_dev->name,  in devm_adis_probe_trigger()
93 						adis->trig);  in devm_adis_probe_trigger()
95 		ret = devm_request_irq(&adis->spi->dev, adis->spi->irq,  in devm_adis_probe_trigger()
97 				       adis->irq_flag,  in devm_adis_probe_trigger()
98 				       indio_dev->name,  in devm_adis_probe_trigger()
99 				       adis->trig);  in devm_adis_probe_trigger()
103 	return devm_iio_trigger_register(&adis->spi->dev, adis->trig);  in devm_adis_probe_trigger()