diff options
| 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 /drivers | |
| parent | 4b030177b6608bc6f2508e023089112e8adb2f4b (diff) | |
| download | u-boot-29fe555dec4c18096ab1ddd51398317160359ba1.zip u-boot-29fe555dec4c18096ab1ddd51398317160359ba1.tar.gz u-boot-29fe555dec4c18096ab1ddd51398317160359ba1.tar.bz2 | |
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 'drivers')
| -rw-r--r-- | drivers/core/uclass.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c index 3de5f27..2aa2143 100644 --- a/drivers/core/uclass.c +++ b/drivers/core/uclass.c @@ -794,6 +794,18 @@ int uclass_probe_all(enum uclass_id id) return 0; } +int uclass_id_count(enum uclass_id id) +{ + struct udevice *dev; + struct uclass *uc; + int count = 0; + + uclass_id_foreach_dev(id, dev, uc) + count++; + + return count; +} + UCLASS_DRIVER(nop) = { .id = UCLASS_NOP, .name = "nop", |