Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b3bea15d29799797d1486aeddf883404a2e05c81
Commit: b3bea15d29799797d1486aeddf883404a2e05c81
Parent: 03a16b27bd30f22d88f570585551925248469f84
Author: Kumar Gala <[EMAIL PROTECTED]>
AuthorDate: Thu Jan 24 22:41:05 2008 -0600
Committer: Kumar Gala <[EMAIL PROTECTED]>
CommitDate: Sun Jan 27 14:07:37 2008 -0600
[POWERPC] bootwrapper: Add find_node_by_compatible
Add the ability to find a device node by just what its compatible with.
This is useful in cases that we don't have a prop to find the node with.
Signed-off-by: Kumar Gala <[EMAIL PROTECTED]>
---
arch/powerpc/boot/libfdt-wrapper.c | 9 +++++++++
arch/powerpc/boot/ops.h | 11 +++++++++++
2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/boot/libfdt-wrapper.c
b/arch/powerpc/boot/libfdt-wrapper.c
index 97af36c..59016be 100644
--- a/arch/powerpc/boot/libfdt-wrapper.c
+++ b/arch/powerpc/boot/libfdt-wrapper.c
@@ -133,6 +133,14 @@ static void *fdt_wrapper_find_node_by_prop_value(const
void *prev,
return offset_devp(offset);
}
+static void *fdt_wrapper_find_node_by_compatible(const void *prev,
+ const char *val)
+{
+ int offset = fdt_node_offset_by_compatible(fdt, devp_offset_find(prev),
+ val);
+ return offset_devp(offset);
+}
+
static char *fdt_wrapper_get_path(const void *devp, char *buf, int len)
{
int rc;
@@ -164,6 +172,7 @@ void fdt_init(void *blob)
dt_ops.get_parent = fdt_wrapper_get_parent;
dt_ops.create_node = fdt_wrapper_create_node;
dt_ops.find_node_by_prop_value = fdt_wrapper_find_node_by_prop_value;
+ dt_ops.find_node_by_compatible = fdt_wrapper_find_node_by_compatible;
dt_ops.get_path = fdt_wrapper_get_path;
dt_ops.finalize = fdt_wrapper_finalize;
diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h
index 5872ef1..4b0544b 100644
--- a/arch/powerpc/boot/ops.h
+++ b/arch/powerpc/boot/ops.h
@@ -46,6 +46,8 @@ struct dt_ops {
void *(*find_node_by_prop_value)(const void *prev,
const char *propname,
const char *propval, int proplen);
+ void *(*find_node_by_compatible)(const void *prev,
+ const char *compat);
unsigned long (*finalize)(void);
char *(*get_path)(const void *phandle, char *buf, int len);
};
@@ -172,6 +174,15 @@ static inline void *find_node_by_alias(const char *alias)
return NULL;
}
+static inline void *find_node_by_compatible(const void *prev,
+ const char *compat)
+{
+ if (dt_ops.find_node_by_compatible)
+ return dt_ops.find_node_by_compatible(prev, compat);
+
+ return NULL;
+}
+
void dt_fixup_memory(u64 start, u64 size);
void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq);
void dt_fixup_clock(const char *path, u32 freq);
-
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