powerpc/scom: Create debugfs files using ibm,chip-id if available
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Message ID 1377759419.4028.26.camel@pasglop
State Accepted, archived
Commit 762fd3ab6d2c4b438ce49f54860dc509e591209c
Delegated to: Benjamin Herrenschmidt
Headers show

Commit Message

Benjamin Herrenschmidt Aug. 29, 2013, 6:56 a.m. 
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>
---
 arch/powerpc/sysdev/scom.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

Patch
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diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 413622d..cb20d54 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;
 }