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authorNathan Fontenot <nfont@linux.vnet.ibm.com>2012-10-02 16:57:57 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-11-15 12:56:41 +1100
commit1cf3d8b3d24cd383ddfd5442c83ec5c355ffc2f7 (patch)
tree0f4790e95f917c6b76d95c88b7b3d67445261893 /drivers/crypto/nx
parentf59497208363f3dd9d62b79b7f7eafc95432de79 (diff)
powerpc+of: Add of node/property notification chain for adds and removes
This patch moves the notification chain for updates to the device tree from the powerpc/pseries code to the base OF code. This makes this functionality available to all architectures. Additionally the notification chain is updated to allow notifications for property add/remove/update. To make this work a pointer to a new struct (of_prop_reconfig) is passed to the routines in the notification chain. The of_prop_reconfig property contains a pointer to the node containing the property and a pointer to the property itself. In the case of property updates, the property pointer refers to the new property. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/crypto/nx')
-rw-r--r--drivers/crypto/nx/nx-842.c20
-rw-r--r--drivers/crypto/nx/nx.c1
2 files changed, 8 insertions, 13 deletions
diff --git a/drivers/crypto/nx/nx-842.c b/drivers/crypto/nx/nx-842.c
index 0ce62573867..6c4c000671c 100644
--- a/drivers/crypto/nx/nx-842.c
+++ b/drivers/crypto/nx/nx-842.c
@@ -28,7 +28,6 @@
#include <linux/slab.h>
#include <asm/page.h>
-#include <asm/pSeries_reconfig.h>
#include <asm/vio.h>
#include "nx_csbcpb.h" /* struct nx_csbcpb */
@@ -1014,26 +1013,23 @@ error_out:
* NOTIFY_BAD encoded with error number on failure, use
* notifier_to_errno() to decode this value
*/
-static int nx842_OF_notifier(struct notifier_block *np,
- unsigned long action,
- void *update)
+static int nx842_OF_notifier(struct notifier_block *np, unsigned long action,
+ void *update)
{
- struct pSeries_reconfig_prop_update *upd;
+ struct of_prop_reconfig *upd = update;
struct nx842_devdata *local_devdata;
struct device_node *node = NULL;
- upd = (struct pSeries_reconfig_prop_update *)update;
-
rcu_read_lock();
local_devdata = rcu_dereference(devdata);
if (local_devdata)
node = local_devdata->dev->of_node;
if (local_devdata &&
- action == PSERIES_UPDATE_PROPERTY &&
- !strcmp(upd->node->name, node->name)) {
+ action == OF_RECONFIG_UPDATE_PROPERTY &&
+ !strcmp(upd->dn->name, node->name)) {
rcu_read_unlock();
- nx842_OF_upd(upd->property);
+ nx842_OF_upd(upd->prop);
} else
rcu_read_unlock();
@@ -1182,7 +1178,7 @@ static int __init nx842_probe(struct vio_dev *viodev,
synchronize_rcu();
kfree(old_devdata);
- pSeries_reconfig_notifier_register(&nx842_of_nb);
+ of_reconfig_notifier_register(&nx842_of_nb);
ret = nx842_OF_upd(NULL);
if (ret && ret != -ENODEV) {
@@ -1228,7 +1224,7 @@ static int __exit nx842_remove(struct vio_dev *viodev)
spin_lock_irqsave(&devdata_mutex, flags);
old_devdata = rcu_dereference_check(devdata,
lockdep_is_held(&devdata_mutex));
- pSeries_reconfig_notifier_unregister(&nx842_of_nb);
+ of_reconfig_notifier_unregister(&nx842_of_nb);
rcu_assign_pointer(devdata, NULL);
spin_unlock_irqrestore(&devdata_mutex, flags);
synchronize_rcu();
diff --git a/drivers/crypto/nx/nx.c b/drivers/crypto/nx/nx.c
index 638110efae9..f7a8a16aa7d 100644
--- a/drivers/crypto/nx/nx.c
+++ b/drivers/crypto/nx/nx.c
@@ -33,7 +33,6 @@
#include <linux/scatterlist.h>
#include <linux/device.h>
#include <linux/of.h>
-#include <asm/pSeries_reconfig.h>
#include <asm/hvcall.h>
#include <asm/vio.h>