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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-08-29 16:56:59 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-10-11 16:53:41 +1100
commit762fd3ab6d2c4b438ce49f54860dc509e591209c (patch)
tree246825b8359f906571e4acf373f89bc3f8eaf3ee
parentpowerpc/scom: Add support for "reg" property (diff)
downloadlinux-dev-762fd3ab6d2c4b438ce49f54860dc509e591209c.tar.xz
linux-dev-762fd3ab6d2c4b438ce49f54860dc509e591209c.zip
powerpc/scom: Create debugfs files using ibm,chip-id if available
When creating the debugfs scom files, use "ibm,chip-id" as the scom%d index rather than a simple made up number when possible. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-rw-r--r--arch/powerpc/sysdev/scom.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 413622d54395..cb20d542a5aa 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -196,8 +196,13 @@ static int scom_debug_init(void)
return -1;
i = rc = 0;
- for_each_node_with_property(dn, "scom-controller")
- rc |= scom_debug_init_one(root, dn, i++);
+ for_each_node_with_property(dn, "scom-controller") {
+ int id = of_get_ibm_chip_id(dn);
+ if (id == -1)
+ id = i;
+ rc |= scom_debug_init_one(root, dn, id);
+ i++;
+ }
return rc;
}