diff options
| author | Michal Simek <[email protected]> | 2026-05-25 13:45:44 +0200 |
|---|---|---|
| committer | Michal Simek <[email protected]> | 2026-06-08 10:50:06 +0200 |
| commit | 4e3f64c7cc0c6a5defdceb485313b8a33f231f10 (patch) | |
| tree | a548a2904f59d9363ea741c8c2893a5dc9161411 /arch | |
| parent | 724d3cafe3ba8a2b3007c579bf52cd0612e6c565 (diff) | |
reset: sandbox: Cover reset_reset() fallback with second sandbox provider
Add a sandbox reset controller compatible string
"sandbox,reset-ctl-fallback-only" that reuses the existing sandbox assert,
deassert, request, and free helpers but omits rst_reset. That forces
reset_reset() through the core assert / udelay / deassert fallback.
Extend the reset-ctl-test DT node with a fifth reset line named "fallback"
that points at the new provider, and add dm_test_reset_reset_fallback_path
which verifies sandbox_reset_get_count() stays zero (rst_reset is never
invoked) while the line ends deasserted after reset_reset().
This complements the existing rst_reset coverage on sandbox,reset-ctl and
matches the approach of using a separate controller to exercise the
fallback path in unit tests.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/c1d40db6e2332a8b23ba842385b3f8c3d0290109.1779709539.git.michal.simek@amd.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sandbox/dts/test.dts | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index 0887de4333b..074e5c06ec8 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -1530,10 +1530,16 @@ #reset-cells = <1>; }; + resetc_fb: reset-ctl-fallback { + compatible = "sandbox,reset-ctl-fallback-only"; + #reset-cells = <1>; + }; + reset-ctl-test { compatible = "sandbox,reset-ctl-test"; - resets = <&resetc 100>, <&resetc 2>, <&resetc 20>, <&resetc 40>; - reset-names = "other", "test", "test2", "test3"; + resets = <&resetc 100>, <&resetc 2>, <&resetc 20>, <&resetc 40>, + <&resetc_fb 5>; + reset-names = "other", "test", "test2", "test3", "fallback"; }; rng { |