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authorZhen Lei <thunder.leizhen@huawei.com>2015-08-25 12:08:22 +0800
committerRob Herring <robh@kernel.org>2015-09-17 14:51:55 -0500
commit4f59d7119c7cb5f32ca91662a74c217ea7c4ddca (patch)
treee994c8e4585cdcc986ea4385b61265af796c5afc /drivers/of
parent6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff)
downloadlinux-4f59d7119c7cb5f32ca91662a74c217ea7c4ddca.tar.bz2
of: to support binding numa node to specified device in devicetree
For now, in function device_add, the new device will be forced to inherit the numa node of its parent. But this will override the device's numa node which configured in devicetree. Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/device.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 8b91ea241b10..e5f47cec75f3 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -60,11 +60,12 @@ int of_device_add(struct platform_device *ofdev)
ofdev->name = dev_name(&ofdev->dev);
ofdev->id = -1;
- /* device_add will assume that this device is on the same node as
- * the parent. If there is no parent defined, set the node
- * explicitly */
- if (!ofdev->dev.parent)
- set_dev_node(&ofdev->dev, of_node_to_nid(ofdev->dev.of_node));
+ /*
+ * If this device has not binding numa node in devicetree, that is
+ * of_node_to_nid returns NUMA_NO_NODE. device_add will assume that this
+ * device is on the same node as the parent.
+ */
+ set_dev_node(&ofdev->dev, of_node_to_nid(ofdev->dev.of_node));
return device_add(&ofdev->dev);
}