diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2005-11-07 14:29:02 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-11-08 11:17:40 +1100 |
| commit | 183d020258dfd08178a05c6793dae10409db8abb (patch) | |
| tree | 5b20bc62709c94bd63e17d800544140213eaf0f5 /arch/powerpc | |
| parent | 4350147a816b9c5b40fa59e4fa23f17490630b79 (diff) | |
[PATCH] ppc64: SMU partition recovery
This patch adds the ability to the SMU driver to recover missing
calibration partitions from the SMU chip itself. It also adds some
dynamic mecanism to /proc/device-tree so that new properties are visible
to userland.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 3675ef4bac9..f645adb5753 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -1974,14 +1974,29 @@ EXPORT_SYMBOL(get_property); /* * Add a property to a node */ -void prom_add_property(struct device_node* np, struct property* prop) +int prom_add_property(struct device_node* np, struct property* prop) { - struct property **next = &np->properties; + struct property **next; prop->next = NULL; - while (*next) + write_lock(&devtree_lock); + next = &np->properties; + while (*next) { + if (strcmp(prop->name, (*next)->name) == 0) { + /* duplicate ! don't insert it */ + write_unlock(&devtree_lock); + return -1; + } next = &(*next)->next; + } *next = prop; + write_unlock(&devtree_lock); + + /* try to add to proc as well if it was initialized */ + if (np->pde) + proc_device_tree_add_prop(np->pde, prop); + + return 0; } /* I quickly hacked that one, check against spec ! */ |