Merge tag 'for-linus-4.15-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...
[sfrench/cifs-2.6.git] / arch / powerpc / include / asm / parport.h
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 <asm/prom.h>
15
16 static 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) */