driver-core: Add device node pointer to struct device
Currently, platforms using CONFIG_OF add a 'struct device_node *of_node'
to dev->archdata. However, with CONFIG_OF becoming generic for all
architectures, it makes sense for commonality to move it out of archdata
and into struct device proper.
This patch adds a struct device_node *of_node member to struct device
and updates all locations which currently write the device_node pointer
into archdata to also update dev->of_node. Subsequent patches will
modify callers to use the archdata location and ultimately remove
the archdata member entirely.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
CC: Michal Simek <monstr@monstr.eu>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: "David S. Miller" <davem@davemloft.net>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
CC: Jeremy Kerr <jeremy.kerr@canonical.com>
CC: microblaze-uclinux@itee.uq.edu.au
CC: linux-kernel@vger.kernel.org
CC: linuxppc-dev@ozlabs.org
CC: sparclinux@vger.kernel.org
diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index a359cb0..9577e6f 100644
--- a/arch/powerpc/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -74,6 +74,7 @@
dev->dev.parent = parent;
dev->dev.release = of_release_dev;
dev->dev.archdata.of_node = np;
+ dev->dev.of_node = np;
if (bus_id)
dev_set_name(&dev->dev, "%s", bus_id);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0c0567e..88da282 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1097,8 +1097,9 @@
if (dev->is_added)
continue;
- /* Setup OF node pointer in archdata */
+ /* Setup OF node pointer in the device */
sd->of_node = pci_device_to_OF_node(dev);
+ dev->dev.of_node = pci_device_to_OF_node(dev);
/* Fixup NUMA node as it may not be setup yet by the generic
* code and is needed by the DMA init
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 8223717..d6708da 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1230,7 +1230,8 @@
if (unit_address != NULL)
viodev->unit_address = *unit_address;
}
- viodev->dev.archdata.of_node = of_node_get(of_node);
+ viodev->dev.of_node = of_node_get(of_node);
+ viodev->dev.archdata.of_node = viodev->dev.of_node;
if (firmware_has_feature(FW_FEATURE_CMO))
vio_cmo_set_dma_ops(viodev);