From: "Michał Mirosław" <[email protected]>
commit f5c042b23f7429e5c2ac987b01a31c69059a978b upstream
Workaround regulators whose supply name happens to be the same as its
own name. This fixes boards that used to work before the early supply
resolving was removed. The error message is left in place so that
offending drivers can be detected.
Fixes: aea6cb99703e ("regulator: resolve supply after creating regulator")
Cc: [email protected]
Reported-by: Ahmad Fatoum <[email protected]>
Signed-off-by: Michał Mirosław <[email protected]>
Tested-by: Ahmad Fatoum <[email protected]> # stpmic1
Link:
https://lore.kernel.org/r/d703acde2a93100c3c7a81059d716c50ad1b1f52.1605226675.git.mirq-li...@rere.qmqm.pl
Signed-off-by: Mark Brown <[email protected]>
[sudip: adjust context]
Signed-off-by: Sudip Mukherjee <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/regulator/core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1553,7 +1553,10 @@ static int regulator_resolve_supply(stru
if (r == rdev) {
dev_err(dev, "Supply for %s (%s) resolved to itself\n",
rdev->desc->name, rdev->supply_name);
- return -EINVAL;
+ if (!have_full_constraints())
+ return -EINVAL;
+ r = dummy_regulator_rdev;
+ get_device(&r->dev);
}
/* Recursively resolve the supply of the supply */
