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Linux/arch/powerpc/include/asm/parport.h

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  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) */
 44 

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