Re: [PATCH] pmdomain: ti_sci: add wakeup constraint to parent devices of wakeup source

From: Sebin Francis

Date: Fri May 15 2026 - 01:22:33 EST




On 07/05/26 08:46, Kendall Willis wrote:
Set wakeup constraint for any device in a wakeup path. All parent devices
of a wakeup device should not be turned off during suspend. This ensures
the wakeup device is kept on while the system is suspended.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 9d8aa0dd3be4 ("pmdomain: ti_sci: add wakeup constraint management")
Reported-by: Vitor Soares <vitor.soares@xxxxxxxxxxx>
Closes: https://lore.kernel.org/linux-pm/c0fe43a2339c802e9ce5900092cd530a2ba17a6b.camel@xxxxxxxxx/
Signed-off-by: Kendall Willis <k-willis@xxxxxx>
---

Looks good to me.

Reviewed-by: Sebin Francis <sebin.francis@xxxxxx>

Sebin Francis

drivers/pmdomain/ti/ti_sci_pm_domains.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pmdomain/ti/ti_sci_pm_domains.c b/drivers/pmdomain/ti/ti_sci_pm_domains.c
index 18d33bc35dee1b3bf6107af1e414db377d515199..949e4115f930b93b18216fde46131b5c8931c9aa 100644
--- a/drivers/pmdomain/ti/ti_sci_pm_domains.c
+++ b/drivers/pmdomain/ti/ti_sci_pm_domains.c
@@ -86,7 +86,7 @@ static inline void ti_sci_pd_set_wkup_constraint(struct device *dev)
const struct ti_sci_handle *ti_sci = pd->parent->ti_sci;
int ret;
- if (device_may_wakeup(dev)) {
+ if (device_may_wakeup(dev) || device_wakeup_path(dev)) {
/*
* If device can wakeup using IO daisy chain wakeups,
* we do not want to set a constraint.

---
base-commit: 7fd2df204f342fc17d1a0bfcd474b24232fb0f32
change-id: 20260506-wkup-constraint-9b0261b04df1
> Best regards,