[PATCH net-next v4 02/27] net: pse-pd: Avoid setting max_uA in regulator constraints

[Kory Maincent <kory.maincent@bootlin.com>]

From: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>

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.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---

Change ni v3:
- New patch
---
 drivers/net/pse-pd/pse_core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/pse-pd/pse_core.c b/drivers/net/pse-pd/pse_core.c
index 2906ce173f66..9fee4dd53515 100644
--- a/drivers/net/pse-pd/pse_core.c
+++ b/drivers/net/pse-pd/pse_core.c
@@ -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";
 

-- 
2.34.1