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regulator: arizona-micsupp: Add processing of init_data from device tree 

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Charles Keepax 2014-04-16 10:01:41 +01:00 committed by Mark Brown
parent e4fcb1d614
commit 36bcdf1bb6
1 changed files with 37 additions and 0 deletions
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37
drivers/regulator/arizona-micsupp.c
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@ -19,6 +19,7 @@
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
@ -195,6 +196,32 @@ static const struct regulator_init_data arizona_micsupp_ext_default = {
.num_consumer_supplies = 1,
};
static int arizona_micsupp_of_get_pdata(struct arizona *arizona,
struct regulator_config *config)
{
struct arizona_pdata *pdata = &arizona->pdata;
struct arizona_micsupp *micsupp = config->driver_data;
struct device_node *np;
struct regulator_init_data *init_data;
np = of_get_child_by_name(arizona->dev->of_node, "micvdd");
if (np) {
config->of_node = np;
init_data = of_get_regulator_init_data(arizona->dev, np);
if (init_data) {
init_data->consumer_supplies = &micsupp->supply;
init_data->num_consumer_supplies = 1;
pdata->micvdd = init_data;
}
}
return 0;
}
static int arizona_micsupp_probe(struct platform_device *pdev)
{
struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
@ -234,6 +261,14 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
config.driver_data = micsupp;
config.regmap = arizona->regmap;
if (IS_ENABLED(CONFIG_OF)) {
if (!dev_get_platdata(arizona->dev)) {
ret = arizona_micsupp_of_get_pdata(arizona, &config);
if (ret < 0)
return ret;
}
}
if (arizona->pdata.micvdd)
config.init_data = arizona->pdata.micvdd;
else
@ -253,6 +288,8 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
return ret;
}
of_node_put(config.of_node);
platform_set_drvdata(pdev, micsupp);
return 0;