Messages in this thread Patch in this message |  | | From | Dmitry Osipenko <> | Subject | [PATCH v1 1/2] regulator: max77620: Use device_set_of_node_from_dev() | Date | Mon, 24 May 2021 01:42:42 +0300 |
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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@gmail.com> --- 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
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