dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-01 16:52:14 +02:00
Code Issues Packages Projects Releases Wiki Activity

dm: core: Add ofnode function to read a 64-bit int

Browse Source 
We have a 32-bit version of this function. Add a 64-bit version as well so
we can easily read 64-bit ints from the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2018-06-11 13:07:10 -06:00
parent 90c08fa038
commit 7e5196c409
4 changed files with 78 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/dm/of_access.h
View File

@@ -218,6 +218,22 @@ struct device_node *of_find_node_by_phandle(phandle handle);
*/
int of_read_u32(const struct device_node *np, const char *propname, u32 *outp);
/**
* of_read_u64() - Find and read a 64-bit integer from a property
*
* Search for a property in a device node and read a 64-bit value from
* it.
*
* @np: device node from which the property value is to be read.
* @propname: name of the property to be searched.
* @outp: pointer to return value, modified only if return value is 0.
*
* @return 0 on success, -EINVAL if the property does not exist,
* -ENODATA if property does not have a value, and -EOVERFLOW if the
* property data isn't large enough.
*/
int of_read_u64(const struct device_node *np, const char *propname, u64 *outp);
/**
* of_read_u32_array() - Find and read an array of 32 bit integers
*