On the Renesas RZ/V2H platform, if the xhci driver is unbound and the
system is suspended afterwards, a PM underflow error will occur:

 # echo 15850000.usb > /sys/bus/platform/drivers/xhci-renesas-hcd/unbind
 # systemctl suspend
 15870000.usb-phy: PM: dpm_run_callback(): genpd_resume_noirq returns -13
 15870000.usb-phy: PM: failed to resume noirq: error -13
 15870000.usb-phy: Runtime PM usage count underflow!

When the xhci driver is unbound, the runtime PM usage count of the PHY
drops to 0. Since the suspend/resume callbacks are in the noirq phase,
the pm_runtime_resume_and_get() on resume errors out with -EACCES and
the usage count stays at 0. The subsequent put in device_complete()
then underflows the counter.

To fix this, move the suspend/resume callbacks out of the noirq phase by
switching from NOIRQ_SYSTEM_SLEEP_PM_OPS to SYSTEM_SLEEP_PM_OPS.

Fixes: ee5f1a3f90a4 ("phy: renesas: Add Renesas RZ/G3E USB3.0 PHY driver")
Signed-off-by: Ovidiu Panait <ovidiu.panait.rb@renesas.com>
---
v2:
- Dropped the runtime PM rework part from the previous version, as it
  was not needed to fix the original issue.

v1: https://lore.kernel.org/all/20260427194741.161533-1-ovidiu.panait.rb@renesas.com/

 drivers/phy/renesas/phy-rzg3e-usb3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/renesas/phy-rzg3e-usb3.c b/drivers/phy/renesas/phy-rzg3e-usb3.c
index 060309547ea5..4d2b0f5f5b09 100644
--- a/drivers/phy/renesas/phy-rzg3e-usb3.c
+++ b/drivers/phy/renesas/phy-rzg3e-usb3.c
@@ -233,7 +233,7 @@ static int rzg3e_phy_usb3_resume(struct device *dev)
 }
 
 static const struct dev_pm_ops rzg3e_phy_usb3_pm = {
-	NOIRQ_SYSTEM_SLEEP_PM_OPS(rzg3e_phy_usb3_suspend, rzg3e_phy_usb3_resume)
+	SYSTEM_SLEEP_PM_OPS(rzg3e_phy_usb3_suspend, rzg3e_phy_usb3_resume)
 };
 
 static const struct of_device_id rzg3e_phy_usb3_match_table[] = {
-- 
2.34.1