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| author | Simon Glass <sjg@chromium.org> | 2021-10-23 17:26:09 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2021-11-28 16:51:51 -0700 |
| commit | 29fe555dec4c18096ab1ddd51398317160359ba1 (patch) | |
| tree | 071caf2042aaadff4ebe4fb698a2aba4ba4d3b76 /include/dm | |
| parent | 4b030177b6608bc6f2508e023089112e8adb2f4b (diff) | |
dm: core: Add a way to count the devices in a uclass
Add a function that returns the number of devices in a uclass. This can be
helpful in sizing an array that needs to hold a list of them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/uclass.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/dm/uclass.h b/include/dm/uclass.h index aea2f34fce..f1fd2ba246 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -426,6 +426,14 @@ int uclass_first_device_drvdata(enum uclass_id id, ulong driver_data, int uclass_probe_all(enum uclass_id id); /** + * uclass_id_count() - Count the number of devices in a uclass + * + * @id: uclass ID to look up + * @return number of devices in that uclass (0 if none) + */ +int uclass_id_count(enum uclass_id id); + +/** * uclass_id_foreach_dev() - Helper function to iteration through devices * * This creates a for() loop which works through the available devices in |