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author | Tom Rini <trini@konsulko.com> | 2018-09-30 18:16:51 -0400 |
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committer | Tom Rini <trini@konsulko.com> | 2018-09-30 18:16:51 -0400 |
commit | d24c1d0f4da3b081a4fedf7ae2a08790871f08d0 (patch) | |
tree | 30051c24000bbb640b6296c8a71a8e05f0cc06e4 /drivers/core/ofnode.c | |
parent | 2c1e16b9d2e3a6138acf4ffd9866e47ddbe6d453 (diff) | |
parent | 31b8217e83a63d1c8c70edcdcdf5aff3b1791640 (diff) | |
download | u-boot-d24c1d0f4da3b081a4fedf7ae2a08790871f08d0.tar.gz |
Merge git://git.denx.de/u-boot-dm
Diffstat (limited to 'drivers/core/ofnode.c')
-rw-r--r-- | drivers/core/ofnode.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index a7e1927723..1e354803b0 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -791,3 +791,73 @@ ofnode ofnode_by_prop_value(ofnode from, const char *propname, propname, propval, proplen)); } } + +int ofnode_write_prop(ofnode node, const char *propname, int len, + const void *value) +{ + const struct device_node *np = ofnode_to_np(node); + struct property *pp; + struct property *pp_last = NULL; + struct property *new; + + if (!of_live_active()) + return -ENOSYS; + + if (!np) + return -EINVAL; + + for (pp = np->properties; pp; pp = pp->next) { + if (strcmp(pp->name, propname) == 0) { + /* Property exists -> change value */ + pp->value = (void *)value; + pp->length = len; + return 0; + } + pp_last = pp; + } + + if (!pp_last) + return -ENOENT; + + /* Property does not exist -> append new property */ + new = malloc(sizeof(struct property)); + if (!new) + return -ENOMEM; + + new->name = strdup(propname); + if (!new->name) + return -ENOMEM; + + new->value = (void *)value; + new->length = len; + new->next = NULL; + + pp_last->next = new; + + return 0; +} + +int ofnode_write_string(ofnode node, const char *propname, const char *value) +{ + if (!of_live_active()) + return -ENOSYS; + + assert(ofnode_valid(node)); + + debug("%s: %s = %s", __func__, propname, value); + + return ofnode_write_prop(node, propname, strlen(value) + 1, value); +} + +int ofnode_set_enabled(ofnode node, bool value) +{ + if (!of_live_active()) + return -ENOSYS; + + assert(ofnode_valid(node)); + + if (value) + return ofnode_write_string(node, "status", "okay"); + else + return ofnode_write_string(node, "status", "disable"); +} |