Unverified Commit cfcdf395 authored Oct 08, 2024 by Jerome Brunet Committed by Mark Brown Oct 22, 2024

regulator: core: add callback to perform runtime init

Provide an initialisation callback to handle runtime parameters.
The idea is similar to the regulator_init() callback, but it provides
regulator specific structures, instead of just the driver specific data.

As an example, this allows the driver to amend the regulator constraints
based on runtime parameters if necessary.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://patch.msgid.link/20241008-regulator-ignored-data-v2-2-d1251e0ee507@baylibre.com

Signed-off-by: Mark Brown <broonie@kernel.org>

parent cd7a38c4

drivers/regulator/core.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -5758,6 +5758,12 @@ regulator_register(struct device *dev,
		goto wash;
		}

		if (regulator_desc->init_cb) {
		ret = regulator_desc->init_cb(rdev, config);
		if (ret < 0)
		goto wash;
		}

		if ((rdev->supply_name && !rdev->supply) &&
		(rdev->constraints->always_on \|\|
		rdev->constraints->boot_on)) {

include/linux/regulator/driver.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -365,6 +365,8 @@ struct regulator_desc {
		int (of_parse_cb)(struct device_node ,
		const struct regulator_desc *,
		struct regulator_config *);
		int (init_cb)(struct regulator_dev ,
		struct regulator_config *);
		int id;
		unsigned int continuous_voltage_range:1;
		unsigned n_voltages;