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net: pse-pd: Avoid setting max_uA in regulator constraints

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[ Upstream commit 675d0e3cacc3ae7c29294a5f6a820187f862ad8b ]

Setting the max_uA constraint in the regulator API imposes a current
limit during the regulator registration process. This behavior conflicts
with preserving the maximum PI power budget configuration across reboots.

Instead, compare the desired current limit to MAX_PI_CURRENT in the
pse_pi_set_current_limit() function to ensure proper handling of the
power budget.

Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Stable-dep-of: f6093c5ec74d ("net: pse-pd: pd692x0: Fix power limit retrieval")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kory Maincent
2025-01-10 10:40:21 +01:00
committed by Greg Kroah-Hartman
parent 997ef6117e
commit 414ce1853b
1 changed files with 4 additions and 3 deletions
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drivers/net/pse-pd/pse_core.c
+4 -3
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@@ -357,6 +357,9 @@ static int pse_pi_set_current_limit(struct regulator_dev *rdev, int min_uA,
if (!ops->pi_set_current_limit)
return -EOPNOTSUPP;
if (max_uA > MAX_PI_CURRENT)
return -ERANGE;
id = rdev_get_id(rdev);
mutex_lock(&pcdev->lock);
ret = ops->pi_set_current_limit(pcdev, id, max_uA);
@@ -403,11 +406,9 @@ devm_pse_pi_regulator_register(struct pse_controller_dev *pcdev,
rinit_data->constraints.valid_ops_mask = REGULATOR_CHANGE_STATUS;
if (pcdev->ops->pi_set_current_limit) {
if (pcdev->ops->pi_set_current_limit)
rinit_data->constraints.valid_ops_mask |=
REGULATOR_CHANGE_CURRENT;
rinit_data->constraints.max_uA = MAX_PI_CURRENT;
}
rinit_data->supply_regulator = "vpwr";