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 a0ba57c6318b..55600026c488 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -981,6 +981,17 @@ int fdtdec_setup_mem_size_base(void); */ int fdtdec_setup_memory_banksize(void);
+/** + * 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 09a7e133a539..00db90e3cdfd 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -1243,6 +1243,13 @@ __weak void *board_fdt_blob_setup(void) } #endif
+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)