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regulator: lochnagar: Move driver to binding from DT 

Based on review comments on the MFD driver, move the child drivers for
the Lochnagar MFD over to binding through device tree.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2018-11-20 14:16:24 +00:00 committed by Mark Brown
parent d7c7fc442f
commit d90acbc4e3
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GPG Key ID: 24D68B725D5487D0
1 changed files with 37 additions and 11 deletions
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48
drivers/regulator/lochnagar-regulator.c
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@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
@ -214,28 +215,52 @@ static const struct regulator_desc lochnagar_regulators[] = {
},
};
static const struct of_device_id lochnagar_of_match[] = {
{
.compatible = "cirrus,lochnagar2-micvdd",
.data = &lochnagar_regulators[LOCHNAGAR_MICVDD],
},
{
.compatible = "cirrus,lochnagar2-mic1vdd",
.data = &lochnagar_regulators[LOCHNAGAR_MIC1VDD],
},
{
.compatible = "cirrus,lochnagar2-mic2vdd",
.data = &lochnagar_regulators[LOCHNAGAR_MIC1VDD],
},
{
.compatible = "cirrus,lochnagar2-vddcore",
.data = &lochnagar_regulators[LOCHNAGAR_VDDCORE],
},
{},
};
static int lochnagar_regulator_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct lochnagar *lochnagar = dev_get_drvdata(dev->parent);
struct regulator_config config = { };
const struct of_device_id *of_id;
const struct regulator_desc *desc;
struct regulator_dev *rdev;
int ret, i;
int ret;
config.dev = lochnagar->dev;
config.dev = dev;
config.regmap = lochnagar->regmap;
config.driver_data = lochnagar;
for (i = 0; i < ARRAY_SIZE(lochnagar_regulators); i++) {
const struct regulator_desc *desc = &lochnagar_regulators[i];
of_id = of_match_device(lochnagar_of_match, dev);
if (!of_id)
return -EINVAL;
rdev = devm_regulator_register(dev, desc, &config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "Failed to register %s regulator: %d\n",
desc->name, ret);
return ret;
}
desc = of_id->data;
rdev = devm_regulator_register(dev, desc, &config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "Failed to register %s regulator: %d\n",
desc->name, ret);
return ret;
}
return 0;
@ -244,6 +269,7 @@ static int lochnagar_regulator_probe(struct platform_device *pdev)
static struct platform_driver lochnagar_regulator_driver = {
.driver = {
.name = "lochnagar-regulator",
.of_match_table = of_match_ptr(lochnagar_of_match),
},
.probe = lochnagar_regulator_probe,