Linux next arm BeagleBoard x15 device boot failed due to the following commit. The x15 did not event showed any crash log on the serial console.
Anders bisect this and found the first bad commit is
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
commit 5a46079a96451cfb15e4f5f01f73f7ba24ef851a Author: Saravana Kannan saravanak@google.com Date: Wed Jun 1 00:06:57 2022 -0700
PM: domains: Delete usage of driver_deferred_probe_check_state()
Now that fw_devlink=on by default and fw_devlink supports "power-domains" property, the execution will never get to the point where driver_deferred_probe_check_state() is called before the supplier has probed successfully or before deferred probe timeout has expired.
So, delete the call and replace it with -ENODEV.
Tested-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Saravana Kannan saravanak@google.com Link: https://lore.kernel.org/r/20220601070707.3946847-2-saravanak@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 739e52cd4aba..3e86772d5fac 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2730,7 +2730,7 @@ static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev, mutex_unlock(&gpd_list_lock); dev_dbg(dev, "%s() failed to find PM domain: %ld\n", __func__, PTR_ERR(pd)); - return driver_deferred_probe_check_state(base_dev); + return -ENODEV; }
dev_dbg(dev, "adding to PM domain %s\n", pd->name);
-- Linaro LKFT https://lkft.linaro.org