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authorMichael Neuling <mikey@neuling.org>2006-01-11 12:08:56 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-11 14:49:24 +1100
commit193cac99f6d8604aca71e5a966a8cd1dfb84819d (patch)
tree1e2cca9d04fd495b0b7f538ab19fca6e4328c759 /include/asm-powerpc/parport.h
parent296167ae1799815b9ed2d135a847436502f2ee91 (diff)
[PATCH] powerpc: parallel port init fix
This stops parport from accessing nonexistent parallel ports. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/parport.h')
-rw-r--r--include/asm-powerpc/parport.h28
1 files changed, 26 insertions, 2 deletions
diff --git a/include/asm-powerpc/parport.h b/include/asm-powerpc/parport.h
index 897e49a88a6..3fca21ddf54 100644
--- a/include/asm-powerpc/parport.h
+++ b/include/asm-powerpc/parport.h
@@ -10,10 +10,34 @@
#define _ASM_POWERPC_PARPORT_H
#ifdef __KERNEL__
-static int __devinit parport_pc_find_isa_ports (int autoirq, int autodma);
+#include <asm/prom.h>
+
+extern struct parport *parport_pc_probe_port (unsigned long int base,
+ unsigned long int base_hi,
+ int irq, int dma,
+ struct pci_dev *dev);
+
static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma)
{
- return parport_pc_find_isa_ports (autoirq, autodma);
+ struct device_node *np;
+ u32 *prop;
+ u32 io1, io2;
+ int propsize;
+ int count = 0;
+ for (np = NULL; (np = of_find_compatible_node(np,
+ "parallel",
+ "pnpPNP,400")) != NULL;) {
+ prop = (u32 *)get_property(np, "reg", &propsize);
+ if (!prop || propsize > 6*sizeof(u32))
+ continue;
+ io1 = prop[1]; io2 = prop[2];
+ prop = (u32 *)get_property(np, "interrupts", NULL);
+ if (!prop)
+ continue;
+ if (parport_pc_probe_port(io1, io2, prop[0], autodma, NULL) != NULL)
+ count++;
+ }
+ return count;
}
#endif /* __KERNEL__ */