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authorAndres Salomon <dilinger@queued.net>2010-10-10 21:49:45 -0600
committerGrant Likely <grant.likely@secretlab.ca>2010-10-12 21:57:53 -0600
commitf90c34bd658d240cb5ebc5fe0a17796e590c6ec8 (patch)
tree02e8243910e156d3af4a14bd9be63dd829d07576 /drivers/of/pdt.c
parent3cfc535c5df8122af1258ae05aaf2770c033425d (diff)
downloadlinux-stericsson-f90c34bd658d240cb5ebc5fe0a17796e590c6ec8.tar.gz
of/promtree: no longer call prom_ functions directly; use an ops structure
Rather than assuming an architecture defines prom_getchild and friends, define an ops struct with hooks for the various prom functions that pdt.c needs. This ops struct is filled in by the arch-(and sometimes firmware-)specific code, and passed to of_pdt_build_devicetree. Update sparc code to define the ops struct as well. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/of/pdt.c')
-rw-r--r--drivers/of/pdt.c40
1 files changed, 18 insertions, 22 deletions
diff --git a/drivers/of/pdt.c b/drivers/of/pdt.c
index 2fdb1b478d6f..fd02fc1dd891 100644
--- a/drivers/of/pdt.c
+++ b/drivers/of/pdt.c
@@ -23,7 +23,8 @@
#include <linux/of.h>
#include <linux/of_pdt.h>
#include <asm/prom.h>
-#include <asm/oplib.h>
+
+static struct of_pdt_ops *of_pdt_prom_ops __initdata;
void __initdata (*prom_build_more)(struct device_node *dp,
struct device_node ***nextp);
@@ -59,7 +60,7 @@ static struct property * __init build_one_prop(phandle node, char *prev,
{
static struct property *tmp = NULL;
struct property *p;
- const char *name;
+ int err;
if (tmp) {
p = tmp;
@@ -77,28 +78,20 @@ static struct property * __init build_one_prop(phandle node, char *prev,
p->value = prom_early_alloc(special_len);
memcpy(p->value, special_val, special_len);
} else {
- if (prev == NULL) {
- name = prom_firstprop(node, p->name);
- } else {
- name = prom_nextprop(node, prev, p->name);
- }
-
- if (!name || strlen(name) == 0) {
+ err = of_pdt_prom_ops->nextprop(node, prev, p->name);
+ if (err) {
tmp = p;
return NULL;
}
-#ifdef CONFIG_SPARC32
- strcpy(p->name, name);
-#endif
- p->length = prom_getproplen(node, p->name);
+ p->length = of_pdt_prom_ops->getproplen(node, p->name);
if (p->length <= 0) {
p->length = 0;
} else {
int len;
p->value = prom_early_alloc(p->length + 1);
- len = prom_getproperty(node, p->name, p->value,
- p->length);
+ len = of_pdt_prom_ops->getproperty(node, p->name,
+ p->value, p->length);
if (len <= 0)
p->length = 0;
((unsigned char *)p->value)[p->length] = '\0';
@@ -130,10 +123,10 @@ static char * __init get_one_property(phandle node, const char *name)
char *buf = "<NULL>";
int len;
- len = prom_getproplen(node, name);
+ len = of_pdt_prom_ops->getproplen(node, name);
if (len > 0) {
buf = prom_early_alloc(len);
- len = prom_getproperty(node, name, buf, len);
+ len = of_pdt_prom_ops->getproperty(node, name, buf, len);
}
return buf;
@@ -211,21 +204,25 @@ static struct device_node * __init prom_build_tree(struct device_node *parent,
#endif
dp->full_name = build_full_name(dp);
- dp->child = prom_build_tree(dp, prom_getchild(node), nextp);
+ dp->child = prom_build_tree(dp,
+ of_pdt_prom_ops->getchild(node), nextp);
if (prom_build_more)
prom_build_more(dp, nextp);
- node = prom_getsibling(node);
+ node = of_pdt_prom_ops->getsibling(node);
}
return ret;
}
-void __init of_pdt_build_devicetree(phandle root_node)
+void __init of_pdt_build_devicetree(phandle root_node, struct of_pdt_ops *ops)
{
struct device_node **nextp;
+ BUG_ON(!ops);
+ of_pdt_prom_ops = ops;
+
allnodes = prom_create_node(root_node, NULL);
#if defined(CONFIG_SPARC)
allnodes->path_component_name = "";
@@ -234,6 +231,5 @@ void __init of_pdt_build_devicetree(phandle root_node)
nextp = &allnodes->allnext;
allnodes->child = prom_build_tree(allnodes,
- prom_getchild(allnodes->phandle),
- &nextp);
+ of_pdt_prom_ops->getchild(allnodes->phandle), &nextp);
}