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libfdt: Make fdtdec_get_child_count() available for HOST

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The tool need to use fdtdec_get_child_count(), make it available for
HOST_CC.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Kever Yang
2020-03-30 11:56:23 +08:00
committed by Tom Rini
parent 02560b1368
commit 10d887ddfa
3 changed files with 20 additions and 11 deletions
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9
include/fdt_support.h
View File

@@ -343,6 +343,15 @@ int fdt_get_cells_len(const void *blob, char *nr_cells_name);
#ifdef USE_HOSTCC #ifdef USE_HOSTCC
int fdtdec_get_int(const void *blob, int node, const char *prop_name, int fdtdec_get_int(const void *blob, int node, const char *prop_name,
int default_val); int default_val);
/*
* Count child nodes of one parent node.
*
* @param blob FDT blob
* @param node parent node
* @return number of child node; 0 if there is not child node
*/
int fdtdec_get_child_count(const void *blob, int node);
#endif #endif
#ifdef CONFIG_FMAN_ENET #ifdef CONFIG_FMAN_ENET
int fdt_update_ethernet_dt(void *blob); int fdt_update_ethernet_dt(void *blob);

11
lib/fdtdec.c
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@@ -810,17 +810,6 @@ int fdtdec_parse_phandle_with_args(const void *blob, int src_node,
return rc; return rc;
} }
int fdtdec_get_child_count(const void *blob, int node)
{
int subnode;
int num = 0;
fdt_for_each_subnode(subnode, blob, node)
num++;
return num;
}
int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name, int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name,
u8 *array, int count) u8 *array, int count)
{ {

11
lib/fdtdec_common.c
View File

@@ -53,3 +53,14 @@ unsigned int fdtdec_get_uint(const void *blob, int node, const char *prop_name,
debug("(not found)\n"); debug("(not found)\n");
return default_val; return default_val;
} }
int fdtdec_get_child_count(const void *blob, int node)
{
int subnode;
int num = 0;
fdt_for_each_subnode(subnode, blob, node)
num++;
return num;
}