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authorPaul Mackerras <paulus@samba.org>2006-09-19 14:06:27 +1000
committerPaul Mackerras <paulus@samba.org>2006-09-20 15:09:48 +1000
commita4dc7ff08915a2035aa6d6decc53fa1deaa410bb (patch)
tree9b28af3a21f915e3fe8ed7ee163be1b1d2bfe8b0 /arch/powerpc/kernel/time.c
parent19e59df4dc2e6f7b46190ee77ce7093769f597a7 (diff)
[POWERPC] Define of_read_ulong helper
There are various places where we want to extract an unsigned long value from a device-tree property that can be 1 or 2 cells in length. This replaces some open-coded calculations, and one place where we assumed without checking that properties were the length we wanted, with a little of_read_ulong() helper. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/time.c')
-rw-r--r--arch/powerpc/kernel/time.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index b9a2061cfdb7..7a3c3f791ade 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -870,9 +870,7 @@ static int __init get_freq(char *name, int cells, unsigned long *val)
fp = get_property(cpu, name, NULL);
if (fp) {
found = 1;
- *val = 0;
- while (cells--)
- *val = (*val << 32) | *fp++;
+ *val = of_read_ulong(fp, cells);
}
of_node_put(cpu);