diff --git a/drivers/reset/reset-uclass.c b/drivers/reset/reset-uclass.c index 89e39c6b5a..ee1a423ffb 100644 --- a/drivers/reset/reset-uclass.c +++ b/drivers/reset/reset-uclass.c @@ -29,41 +29,34 @@ static int reset_of_xlate_default(struct reset_ctl *reset_ctl, return 0; } -int reset_get_by_index(struct udevice *dev, int index, - struct reset_ctl *reset_ctl) +static int reset_get_by_index_tail(int ret, ofnode node, + struct ofnode_phandle_args *args, + const char *list_name, int index, + struct reset_ctl *reset_ctl) { - struct ofnode_phandle_args args; - int ret; struct udevice *dev_reset; struct reset_ops *ops; - debug("%s(dev=%p, index=%d, reset_ctl=%p)\n", __func__, dev, index, - reset_ctl); + assert(reset_ctl); reset_ctl->dev = NULL; - - ret = dev_read_phandle_with_args(dev, "resets", "#reset-cells", 0, - index, &args); - if (ret) { - debug("%s: fdtdec_parse_phandle_with_args() failed: %d\n", - __func__, ret); + if (ret) return ret; - } - ret = uclass_get_device_by_ofnode(UCLASS_RESET, args.node, + ret = uclass_get_device_by_ofnode(UCLASS_RESET, args->node, &dev_reset); if (ret) { debug("%s: uclass_get_device_by_ofnode() failed: %d\n", __func__, ret); - debug("%s %d\n", ofnode_get_name(args.node), args.args[0]); + debug("%s %d\n", ofnode_get_name(args->node), args->args[0]); return ret; } ops = reset_dev_ops(dev_reset); reset_ctl->dev = dev_reset; if (ops->of_xlate) - ret = ops->of_xlate(reset_ctl, &args); + ret = ops->of_xlate(reset_ctl, args); else - ret = reset_of_xlate_default(reset_ctl, &args); + ret = reset_of_xlate_default(reset_ctl, args); if (ret) { debug("of_xlate() failed: %d\n", ret); return ret; @@ -78,6 +71,32 @@ int reset_get_by_index(struct udevice *dev, int index, return 0; } +int reset_get_by_index(struct udevice *dev, int index, + struct reset_ctl *reset_ctl) +{ + struct ofnode_phandle_args args; + int ret; + + ret = dev_read_phandle_with_args(dev, "resets", "#reset-cells", 0, + index, &args); + + return reset_get_by_index_tail(ret, dev_ofnode(dev), &args, "resets", + index > 0, reset_ctl); +} + +int reset_get_by_index_nodev(ofnode node, int index, + struct reset_ctl *reset_ctl) +{ + struct ofnode_phandle_args args; + int ret; + + ret = ofnode_parse_phandle_with_args(node, "resets", "#reset-cells", 0, + index > 0, &args); + + return reset_get_by_index_tail(ret, node, &args, "resets", + index > 0, reset_ctl); +} + int reset_get_bulk(struct udevice *dev, struct reset_ctl_bulk *bulk) { int i, ret, err, count; diff --git a/include/reset.h b/include/reset.h index 65aa7a4ce5..57bbc0b49d 100644 --- a/include/reset.h +++ b/include/reset.h @@ -6,6 +6,7 @@ #ifndef _RESET_H #define _RESET_H +#include #include /** @@ -99,6 +100,21 @@ struct reset_ctl_bulk { int reset_get_by_index(struct udevice *dev, int index, struct reset_ctl *reset_ctl); +/** + * reset_get_by_index_nodev - Get/request a reset signal by integer index + * without a device. + * + * This is a version of reset_get_by_index() that does not use a device. + * + * @node: The client ofnode. + * @index: The index of the reset signal to request, within the client's + * list of reset signals. + * @reset_ctl A pointer to a reset control struct to initialize. + * @return 0 if OK, or a negative error code. + */ +int reset_get_by_index_nodev(ofnode node, int index, + struct reset_ctl *reset_ctl); + /** * reset_get_bulk - Get/request all reset signals of a device. *