Lines Matching +full:scan +full:- +full:delay

1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (C) 1992, 1998-2004 Linus Torvalds, Ingo Molnar
11 #include <linux/delay.h>
24  *	probe_irq_on	- begin an interrupt autodetect
46 		guard(raw_spinlock_irq)(&desc->lock);  in probe_irq_on()
47 		if (!desc->action && irq_settings_can_probe(desc)) {  in probe_irq_on()
52 			if (desc->irq_data.chip->irq_set_type)  in probe_irq_on()
53 				desc->irq_data.chip->irq_set_type(&desc->irq_data, IRQ_TYPE_PROBE);  in probe_irq_on()
67 		guard(raw_spinlock_irq)(&desc->lock);  in probe_irq_on()
68 		if (!desc->action && irq_settings_can_probe(desc)) {  in probe_irq_on()
69 			desc->istate |= IRQS_AUTODETECT | IRQS_WAITING;  in probe_irq_on()
71 				desc->istate |= IRQS_PENDING;  in probe_irq_on()
84 		guard(raw_spinlock_irq)(&desc->lock);  in probe_irq_on()
85 		if (desc->istate & IRQS_AUTODETECT) {  in probe_irq_on()
86 			/* It triggered already - consider it spurious. */  in probe_irq_on()
87 			if (!(desc->istate & IRQS_WAITING)) {  in probe_irq_on()
88 				desc->istate &= ~IRQS_AUTODETECT;  in probe_irq_on()
101  *	probe_irq_mask - scan a bitmap of interrupt lines
104  *	Scan the interrupt lines and return a bitmap of active
108  *	Note: we need to scan all the irq's even though we will
109  *	only return autodetect irq numbers - just so that we reset
119 		guard(raw_spinlock_irq)(&desc->lock);  in probe_irq_mask()
120 		if (desc->istate & IRQS_AUTODETECT) {  in probe_irq_mask()
121 			if (i < 16 && !(desc->istate & IRQS_WAITING))  in probe_irq_mask()
124 			desc->istate &= ~IRQS_AUTODETECT;  in probe_irq_mask()
135  *	probe_irq_off	- end an interrupt autodetect
149  *	results of this are non-optimal.
157 		guard(raw_spinlock_irq)(&desc->lock);  in probe_irq_off()
158 		if (desc->istate & IRQS_AUTODETECT) {  in probe_irq_off()
159 			if (!(desc->istate & IRQS_WAITING)) {  in probe_irq_off()
164 			desc->istate &= ~IRQS_AUTODETECT;  in probe_irq_off()
171 		irq_found = -irq_found;  in probe_irq_off()