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path: root/drivers/regulator/arizona-micsupp.c
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Diffstat (limited to 'drivers/regulator/arizona-micsupp.c')
-rw-r--r--drivers/regulator/arizona-micsupp.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c
index 6fdd9bf6927..ce9aca5f8ee 100644
--- a/drivers/regulator/arizona-micsupp.c
+++ b/drivers/regulator/arizona-micsupp.c
@@ -16,9 +16,11 @@
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/err.h>
+#include <linux/of.h>
#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 +197,32 @@ 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 +262,14 @@ 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 +289,8 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
return ret;
}
+ of_node_put(config.of_node);
+
platform_set_drvdata(pdev, micsupp);
return 0;