regulator: core: remove dead code in regulator_resolve_supply()

Since commit 98e48cd ("regulator: core: resolve supply for
boot-on/always-on regulators") we require that a regulator's supply has
been resolved before enabling the regulator. Furthermore,
regulator_get() also fails if the supply hasn't been resolved yet
(preventing consumers from enabling a regulator without its supply
known). In combination this means that regulator_resolve_supply() now
always runs before the regulator has been enabled via
set_machine_constraints().

The code here was meant to run after enabling the regulator in case the
supply hadn't been resolved at that time and can therefore never
execute anymore since that commit.

Remove it.

No functional change intended.

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20260109-regulators-defer-v2-5-1a25dc968e60@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: andred

drivers/regulator/core.c

@@ -2282,28 +2282,6 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
 	/* rdev->supply was created in set_supply() */
 	link_and_create_debugfs(rdev->supply, r, &rdev->dev);
 
-	/*
-	 * In set_machine_constraints() we may have turned this regulator on
-	 * but we couldn't propagate to the supply if it hadn't been resolved
-	 * yet.  Do it now.
-	 */
-	if (rdev->use_count) {
-		ret = regulator_enable(rdev->supply);
-		if (ret < 0) {
-			struct regulator *supply;
-
-			regulator_lock_two(rdev, rdev->supply->rdev, &ww_ctx);
-
-			supply = rdev->supply;
-			rdev->supply = NULL;
-
-			regulator_unlock_two(rdev, supply->rdev, &ww_ctx);
-
-			regulator_put(supply);
-			goto out;
-		}
-	}
-
 out:
 	return ret;
 }