[PATCH] amba: bus: Drop dev_pm_domain_detach() call

From: Claudiu
Date: Wed Aug 27 2025 - 06:03:53 EST


From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>

Starting with commit f99508074e78 ("PM: domains: Detach on
device_unbind_cleanup()"), there is no longer a need to call
dev_pm_domain_detach() in the bus remove function. The
device_unbind_cleanup() function now handles this to avoid
invoking devres cleanup handlers while the PM domain is
powered off, which could otherwise lead to failures as
described in the above-mentioned commit.

Drop the explicit dev_pm_domain_detach() call and rely instead
on the flags passed to dev_pm_domain_attach() to power off the
domain.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
---
drivers/amba/bus.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 74e34a07ef72..952c45ca6e48 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -291,15 +291,14 @@ static int amba_probe(struct device *dev)
if (ret < 0)
break;

- ret = dev_pm_domain_attach(dev, PD_FLAG_ATTACH_POWER_ON);
+ ret = dev_pm_domain_attach(dev, PD_FLAG_ATTACH_POWER_ON |
+ PD_FLAG_DETACH_POWER_OFF);
if (ret)
break;

ret = amba_get_enable_pclk(pcdev);
- if (ret) {
- dev_pm_domain_detach(dev, true);
+ if (ret)
break;
- }

pm_runtime_get_noresume(dev);
pm_runtime_set_active(dev);
@@ -314,7 +313,6 @@ static int amba_probe(struct device *dev)
pm_runtime_put_noidle(dev);

amba_put_disable_pclk(pcdev);
- dev_pm_domain_detach(dev, true);
} while (0);

return ret;
@@ -336,7 +334,6 @@ static void amba_remove(struct device *dev)
pm_runtime_put_noidle(dev);

amba_put_disable_pclk(pcdev);
- dev_pm_domain_detach(dev, true);
}

static void amba_shutdown(struct device *dev)
--
2.43.0