From: Thierry Reding treding@nvidia.com
This function can be used to set a phandle for a given node.
Signed-off-by: Thierry Reding treding@nvidia.com --- Changes in v2: - don't emit deprecated linux,phandle property
include/fdtdec.h | 11 +++++++++++ lib/fdtdec.c | 7 +++++++ 2 files changed, 18 insertions(+)
diff --git a/include/fdtdec.h b/include/fdtdec.h index b593c562584d..eb076fc24bc9 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -993,6 +993,17 @@ int fdtdec_setup_memory_banksize(void); */ int fdtdec_generate_phandle(const void *blob, uint32_t *phandle);
+/** + * fdtdec_set_phandle() - sets the phandle of a given node + * + * @param blob FDT blob + * @param node offset in the FDT blob of the node whose phandle is to + * be set + * @param phandle phandle to set for the given node + * @return 0 on success or a negative error code on failure + */ +int fdtdec_set_phandle(void *blob, int node, uint32_t phandle); + /** * Set up the device tree ready for use */ diff --git a/lib/fdtdec.c b/lib/fdtdec.c index d384c84feb33..04d242cdf38e 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -1271,6 +1271,13 @@ int fdtdec_generate_phandle(const void *blob, uint32_t *phandle) return 0; }
+int fdtdec_set_phandle(void *blob, int node, uint32_t phandle) +{ + fdt32_t value = cpu_to_fdt32(phandle); + + return fdt_setprop(blob, node, "phandle", &value, sizeof(value)); +} + int fdtdec_setup(void) { #if CONFIG_IS_ENABLED(OF_CONTROL)