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fdtdec: Implement fdtdec_set_phandle()

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This function can be used to set a phandle for a given node.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2019-03-21 19:10:01 +01:00 • committed by Simon Glass
parent 4f253ad064
commit 8153d53b93
2 changed files with 18 additions and 0 deletions
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11
include/fdtdec.h
View file

@ -1020,6 +1020,17 @@ int fdtdec_setup_memory_banksize_fdt(const void *blob);
*/ */
int fdtdec_setup_memory_banksize(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 * Set up the device tree ready for use
*/ */

7
lib/fdtdec.c
View file

@ -1261,6 +1261,13 @@ __weak void *board_fdt_blob_setup(void)
} }
#endif #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) int fdtdec_setup(void)
{ {
#if CONFIG_IS_ENABLED(OF_CONTROL) #if CONFIG_IS_ENABLED(OF_CONTROL)