1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * parport.h: platform-specific PC-style parport initialisation
4 *
5 * Copyright (C) 1999, 2000  Tim Waugh <tim@cyberelk.demon.co.uk>
6 *
7 * This file should only be included by drivers/parport/parport_pc.c.
8 */
9
10#ifndef _ASM_POWERPC_PARPORT_H
11#define _ASM_POWERPC_PARPORT_H
12#ifdef __KERNEL__
13
14#include <linux/of_irq.h>
15
16static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
17{
18	struct device_node *np;
19	const u32 *prop;
20	u32 io1, io2;
21	int propsize;
22	int count = 0;
23	int virq;
24
25	for_each_compatible_node(np, "parallel", "pnpPNP,400") {
26		prop = of_get_property(np, "reg", &propsize);
27		if (!prop || propsize > 6*sizeof(u32))
28			continue;
29		io1 = prop[1]; io2 = prop[2];
30
31		virq = irq_of_parse_and_map(np, 0);
32		if (!virq)
33			continue;
34
35		if (parport_pc_probe_port(io1, io2, virq, autodma, NULL, 0)
36				!= NULL)
37			count++;
38	}
39	return count;
40}
41
42#endif /* __KERNEL__ */
43#endif /* !(_ASM_POWERPC_PARPORT_H) */
44