The MAX77620 driver fails to re-probe on deferred probe because driver
core tries to claim resources that are already claimed by the PINCTRL
device. Use device_set_of_node_from_dev() helper which marks OF node as
reused, skipping erroneous execution of pinctrl_bind_pins() for the PMIC
device on the re-probe.
Fixes: aea6cb99703e ("regulator: resolve supply after creating regulator")
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
drivers/regulator/max77620-regulator.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/regulator/max77620-regulator.c b/drivers/regulator/max77620-regulator.c
index 8d9731e4052b..5c439c850d09 100644
--- a/drivers/regulator/max77620-regulator.c
+++ b/drivers/regulator/max77620-regulator.c
@@ -814,6 +814,13 @@ static int max77620_regulator_probe(struct platform_device *pdev)
config.dev = dev;
config.driver_data = pmic;
+ /*
+ * Set of_node_reuse flag to prevent driver core from attempting to
+ * claim any pinmux resources already claimed by the parent device.
+ * Otherwise PMIC driver will fail to re-probe.
+ */
+ device_set_of_node_from_dev(&pdev->dev, pdev->dev.parent);
+
for (id = 0; id < MAX77620_NUM_REGS; id++) {
struct regulator_dev *rdev;
struct regulator_desc *rdesc;
--
2.30.2
