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Subject[PATCH 3/6] regulator: arizona-ldo1: Add processing of init_data from device tree
Date
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
drivers/regulator/arizona-ldo1.c | 47 +++++++++++++++++++++++++++++++++++--
1 files changed, 44 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
index 211af83..e23a95f 100644
--- a/drivers/regulator/arizona-ldo1.c
+++ b/drivers/regulator/arizona-ldo1.c
@@ -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>

@@ -179,19 +180,56 @@ static const struct regulator_init_data arizona_ldo1_default = {
};

#ifdef CONFIG_OF
-static int arizona_ldo1_of_get_pdata(struct arizona *arizona)
+static int arizona_ldo1_of_get_pdata(struct arizona *arizona,
+ struct regulator_config *config)
{
struct arizona_pdata *pdata = &arizona->pdata;
+ struct arizona_ldo1 *ldo1 = config->driver_data;
+ struct device_node *init_node, *dcvdd_node;
+ struct regulator_init_data *init_data;

arizona_of_get_named_gpio(arizona, "wlf,ldoena", true, &pdata->ldoena);

+ init_node = of_get_child_by_name(arizona->dev->of_node, "ldo1");
+ dcvdd_node = of_parse_phandle(arizona->dev->of_node, "DCVDD-supply", 0);
+
+ if (init_node) {
+ config->of_node = init_node;
+
+ init_data = of_get_regulator_init_data(arizona->dev, init_node);
+
+ if (init_data) {
+ init_data->consumer_supplies = &ldo1->supply;
+ init_data->num_consumer_supplies = 1;
+
+ if (dcvdd_node && dcvdd_node != init_node)
+ arizona->external_dcvdd = true;
+
+ pdata->ldo1 = init_data;
+ }
+ } else if (dcvdd_node) {
+ arizona->external_dcvdd = true;
+ }
+
+ of_node_put(dcvdd_node);
+
return 0;
}
+
+static void arizona_ldo1_of_put_pdata(struct regulator_config *config)
+{
+ of_node_put(config->of_node);
+}
#else
-static inline int arizona_ldo1_of_get_pdata(struct arizona *arizona)
+static inline int arizona_ldo1_of_get_pdata(struct arizona *arizona,
+ struct regulator_config *config)
{
return 0;
}
+
+static inline void arizona_ldo1_of_put_pdata(struct regulator_config *config)
+{
+}
#endif

static int arizona_ldo1_probe(struct platform_device *pdev)
@@ -236,7 +274,7 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
config.regmap = arizona->regmap;

if (!dev_get_platdata(arizona->dev)) {
- ret = arizona_ldo1_of_get_pdata(arizona);
+ ret = arizona_ldo1_of_get_pdata(arizona, &config);
if (ret < 0)
return ret;
}
@@ -263,6 +301,9 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
return ret;
}

+ if (!dev_get_platdata(arizona->dev))
+ arizona_ldo1_of_put_pdata(&config);
+
platform_set_drvdata(pdev, ldo1);

return 0;
--
1.7.2.5


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