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dm: core: Add ofnode_get_chosen_prop()

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Add a function to read a property from the chosen node, providing access
to its length. Update ofnode_get_chosen_string() to make use of it.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2020-01-27 08:49:46 -07:00
parent 1aada6313c
commit bd933bfd83
4 changed files with 29 additions and 3 deletions
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11
drivers/core/ofnode.c
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@@ -427,20 +427,25 @@ ofnode ofnode_path(const char *path)
return offset_to_ofnode(fdt_path_offset(gd->fdt_blob, path));
}
const char *ofnode_read_chosen_string(const char *name)
const void *ofnode_read_chosen_prop(const char *propname, int *sizep)
{
ofnode chosen_node;
chosen_node = ofnode_path("/chosen");
return ofnode_read_string(chosen_node, name);
return ofnode_read_prop(chosen_node, propname, sizep);
}
const char *ofnode_read_chosen_string(const char *propname)
{
return ofnode_read_chosen_prop(propname, NULL);
}
ofnode ofnode_get_chosen_node(const char *name)
{
const char *prop;
prop = ofnode_read_chosen_string(name);
prop = ofnode_read_chosen_prop(name, NULL);
if (!prop)
return ofnode_null();