From: Patrice Chotard Date: Wed, 24 Oct 2018 12:10:16 +0000 (+0200) Subject: dm: uclass: Add uclass_foreach_dev_probe X-Git-Url: http://git.dujemihanovic.xyz/html/index.html?a=commitdiff_plain;h=37b596ac5c5f7ac405602af2577405b1f7d38cce;p=u-boot.git dm: uclass: Add uclass_foreach_dev_probe Add uclass_foreach_dev_probe() which iterates through devices of a given uclass. Devices are probed if necessary and are ready to use. Signed-off-by: Patrice Chotard Reviewed-by: Simon Glass --- diff --git a/include/dm/uclass.h b/include/dm/uclass.h index 93f761c96e..1bc62d523e 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -393,4 +393,20 @@ int uclass_resolve_seq(struct udevice *dev); #define uclass_foreach_dev_safe(pos, next, uc) \ list_for_each_entry_safe(pos, next, &uc->dev_head, uclass_node) +/** + * uclass_foreach_dev_probe() - Helper function to iteration through devices + * of given uclass + * + * This creates a for() loop which works through the available devices in + * a uclass in order from start to end. Devices are probed if necessary, + * and ready for use. + * + * @id: Uclass ID + * @dev: struct udevice * to hold the current device. Set to NULL when there + * are no more devices. + */ +#define uclass_foreach_dev_probe(id, dev) \ + for (int _ret = uclass_first_device_err(id, &dev); !_ret && dev; \ + _ret = uclass_next_device_err(&dev)) + #endif