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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2014-04-16 10:01:39 +0100
committerMark Brown <broonie@linaro.org>2014-04-18 18:35:06 +0100
commit2cce4be9e6b885c595816c45a80bcce95dae6d30 (patch)
tree242189876aeb776e3820eb94f8a725c09eaa9187 /drivers/regulator/arizona-ldo1.c
parent4a8c475f5fd5c1271dba36a453d666d5ed473aa6 (diff)
regulator: arizona-ldo1: 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>
Diffstat (limited to 'drivers/regulator/arizona-ldo1.c')
-rw-r--r--drivers/regulator/arizona-ldo1.c34
1 files changed, 32 insertions, 2 deletions
diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
index 2248733ea394..d3787e11f535 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>
@@ -178,12 +179,39 @@ static const struct regulator_init_data arizona_ldo1_default = {
.num_consumer_supplies = 1,
};
-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;
pdata->ldoena = arizona_of_get_named_gpio(arizona, "wlf,ldoena", true);
+ 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;
}
@@ -230,7 +258,7 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
if (IS_ENABLED(CONFIG_OF)) {
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;
}
@@ -258,6 +286,8 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
return ret;
}
+ of_node_put(config.of_node);
+
platform_set_drvdata(pdev, ldo1);
return 0;