+ struct device_node *np;
+ const u32 *prop;
+ u32 io1, io2;
+ int propsize;
+ int count = 0;
+ for (np = NULL; (np = of_find_compatible_node(np,
+ "parallel",
+ "pnpPNP,400")) != NULL;) {
+ prop = of_get_property(np, "reg", &propsize);
+ if (!prop || propsize > 6*sizeof(u32))
+ continue;
+ io1 = prop[1]; io2 = prop[2];
+ prop = of_get_property(np, "interrupts", NULL);
+ if (!prop)
+ continue;
+ if (parport_pc_probe_port(io1, io2, prop[0], autodma, NULL) != NULL)
+ count++;
+ }
+ return count;