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regulator: core: add callback to perform runtime init

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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>
This commit is contained in:
Jerome Brunet 2024-10-08 18:07:02 +02:00 committed by Mark Brown
parent cd7a38c40b
commit cfcdf395c2
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2 changed files with 8 additions and 0 deletions
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6
drivers/regulator/core.c
View File

@ -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)) {

2
include/linux/regulator/driver.h
View File

@ -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;