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From 719c039f5daf2ecf99a1c02669745486be36ba43 Mon Sep 17 00:00:00 2001
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From: Jeremy Kerr <jk@ozlabs.org>
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Date: Wed, 24 Aug 2016 17:39:23 +0800
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Subject: [PATCH 28/43] devtree: Add add_device_tree_info()
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sysfs contains symbolic link (of_node) for each device which has
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correspoding device tree entry. It helps user space tool to
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parse firmware information for that device.
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This patch adds logic to add location code for given sysfs path.
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
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---
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src/core/device-tree.cc | 19 +++++++++++++++++++
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src/core/device-tree.h | 2 ++
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2 files changed, 21 insertions(+)
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diff --git a/src/core/device-tree.cc b/src/core/device-tree.cc
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index 0bba4e9..1e49f3a 100644
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--- a/src/core/device-tree.cc
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+++ b/src/core/device-tree.cc
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@@ -1208,3 +1208,22 @@ bool scan_device_tree(hwNode & n)
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return true;
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}
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+
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+void add_device_tree_info(hwNode & n, string sysfs_path)
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+{
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+ string of_node = sysfs_path + "/of_node";
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+ string val;
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+
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+ if (!exists(of_node))
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+ return;
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+
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+ /* read location / slot data */
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+ val = hw::strip(get_string(of_node + "/ibm,loc-code", ""));
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+ if (val == "")
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+ val = hw::strip(get_string(of_node + "/ibm,slot-location-code", ""));
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+ if (val == "")
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+ val = hw::strip(get_string(of_node + "/ibm,slot-label"));
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+
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+ if (val != "")
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+ n.setSlot(val);
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+}
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diff --git a/src/core/device-tree.h b/src/core/device-tree.h
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index 62313aa..91ecb7d 100644
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--- a/src/core/device-tree.h
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+++ b/src/core/device-tree.h
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@@ -4,4 +4,6 @@
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#include "hw.h"
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bool scan_device_tree(hwNode & n);
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+
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+void add_device_tree_info(hwNode & n, string sysfs_path);
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#endif
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--
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2.10.2
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