1// SPDX-License-Identifier: GPL-2.0
 2/dts-v1/;
 3/plugin/;
 4
 5/*
 6 * &electric_1/motor-1/electric and &spin_ctrl_1/electric are the same node:
 7 *   /testcase-data-2/substation@100/motor-1/electric
 8 *
 9 * Thus the property "rpm_avail" in each fragment will
10 * result in an attempt to update the same property twice.
11 * This will result in an error and the overlay apply
12 * will fail.
13 *
14 * The previous version of this test did not include the extra
15 * level of node 'electric'.  That resulted in the 'rpm_avail'
16 * property being located in the pre-existing node 'motor-1'.
17 * Modifying a property results in a WARNING that a memory leak
18 * will occur if the overlay is removed.  Since the overlay apply
19 * fails, the memory leak does actually occur, and kmemleak will
20 * further report the memory leak if CONFIG_DEBUG_KMEMLEAK is
21 * enabled.  Adding the overlay node 'electric' avoids the
22 * memory leak and thus people who use kmemleak will not
23 * have to debug this non-problem again.
24 */
25
26&electric_1 {
27	motor-1 {
28		electric {
29			rpm_avail = <100>;
30		};
31	};
32};
33
34&spin_ctrl_1 {
35	electric {
36		rpm_avail = <100 200>;
37	};
38};