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libfdt: Sync fdt_for_each_subnode() with upstream

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The signature for this macro has changed. Bring in the upstream version and
adjust U-Boot's usages to suit.

Signed-off-by: Simon Glass <sjg@chromium.org>
Update to drivers/power/pmic/palmas.c:
Signed-off-by: Keerthy <j-keerthy@ti.com>

Change-Id: I6cc9021339bfe686f9df21d61a1095ca2b3776e8
This commit is contained in:
Simon Glass
2016-10-02 17:59:29 -06:00
parent b02e4044ff
commit df87e6b1b8
14 changed files with 35 additions and 32 deletions
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25
include/libfdt.h
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@@ -176,24 +176,27 @@ int fdt_next_subnode(const void *fdt, int offset);
/**
* fdt_for_each_subnode - iterate over all subnodes of a parent
*
* @node: child node (int, lvalue)
* @fdt: FDT blob (const void *)
* @parent: parent node (int)
*
* This is actually a wrapper around a for loop and would be used like so:
*
* fdt_for_each_subnode(fdt, node, parent) {
* ...
* use node
* fdt_for_each_subnode(node, fdt, parent) {
* Use node
* ...
* }
*
* Note that this is implemented as a macro and node is used as iterator in
* the loop. It should therefore be a locally allocated variable. The parent
* variable on the other hand is never modified, so it can be constant or
* even a literal.
* if ((node < 0) && (node != -FDT_ERR_NOT_FOUND)) {
* Error handling
* }
*
* Note that this is implemented as a macro and @node is used as
* iterator in the loop. The parent variable be constant or even a
* literal.
*
* @fdt: FDT blob (const void *)
* @node: child node (int)
* @parent: parent node (int)
*/
#define fdt_for_each_subnode(fdt, node, parent) \
#define fdt_for_each_subnode(node, fdt, parent) \
for (node = fdt_first_subnode(fdt, parent); \
node >= 0; \
node = fdt_next_subnode(fdt, node))