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 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) */ 44