diff options
author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2016-07-29 11:55:48 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-07-19 07:01:09 +0200 |
commit | 6112fb0b649a1cdebc127a6a264ab64c1135f7a8 (patch) | |
tree | 0ba17502f83202c262bdaa0fbe62cd6328daf09e /cpukit/include/libfdt.h | |
parent | libfdt: Add fdt_getprop_namelen_w (diff) | |
download | rtems-6112fb0b649a1cdebc127a6a264ab64c1135f7a8.tar.bz2 |
libfdt: Add fdt_setprop_inplace_namelen_partial
Add a function to modify inplace only a portion of a property..
This is especially useful when the property is an array of values, and you
want to update one of them without changing the DT size.
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[dwg: Remove unnecessary unsigned qualifier, correct a comment]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'cpukit/include/libfdt.h')
-rw-r--r-- | cpukit/include/libfdt.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/cpukit/include/libfdt.h b/cpukit/include/libfdt.h index 0189350fb3..376e628150 100644 --- a/cpukit/include/libfdt.h +++ b/cpukit/include/libfdt.h @@ -1080,6 +1080,27 @@ int fdt_size_cells(const void *fdt, int nodeoffset); /**********************************************************************/ /** + * fdt_setprop_inplace_namelen_partial - change a property's value, + * but not its size + * @fdt: pointer to the device tree blob + * @nodeoffset: offset of the node whose property to change + * @name: name of the property to change + * @namelen: number of characters of name to consider + * @idx: index of the property to change in the array + * @val: pointer to data to replace the property value with + * @len: length of the property value + * + * Identical to fdt_setprop_inplace(), but modifies the given property + * starting from the given index, and using only the first characters + * of the name. It is useful when you want to manipulate only one value of + * an array and you have a string that doesn't end with \0. + */ +int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset, + const char *name, int namelen, + uint32_t idx, const void *val, + int len); + +/** * fdt_setprop_inplace - change a property's value, but not its size * @fdt: pointer to the device tree blob * @nodeoffset: offset of the node whose property to change |