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dm: core: Add a function to get a uclass name

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It is useful in debug() statements to display the name of the uclass for a
device. Add a simple function to provide this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2016-10-05 20:42:13 -06:00 committed by Bin Meng
parent 5023bd7a80
commit 0a5f6f869f
2 changed files with 17 additions and 0 deletions
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9
drivers/core/uclass.c
View File

@ -148,6 +148,15 @@ int uclass_get(enum uclass_id id, struct uclass **ucp)
return 0;
}
const char *uclass_get_name(enum uclass_id id)
{
struct uclass *uc;
if (uclass_get(id, &uc))
return NULL;
return uc->uc_drv->name;
}
int uclass_find_device(enum uclass_id id, int index, struct udevice **devp)
{
struct uclass *uc;

8
include/dm/uclass.h
View File

@ -118,6 +118,14 @@ struct uclass_driver {
*/
int uclass_get(enum uclass_id key, struct uclass **ucp);
/**
* uclass_get_name() - Get the name of a uclass driver
*
* @id: ID to look up
* @returns the name of the uclass driver for that ID, or NULL if none
*/
const char *uclass_get_name(enum uclass_id id);
/**
* uclass_get_device() - Get a uclass device based on an ID and index
*