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authorMark Brown <broonie@linaro.org>2013-07-01 11:17:10 +0100
committerMark Brown <broonie@linaro.org>2013-07-01 11:17:10 +0100
commit5ee6c728808d86b7c4bed316fd0a70114f4d7793 (patch)
treeb9b0264237675132171d6f23183bdba84d3ecf8f /drivers/regulator
parent7455c7f4ac0e99e6c2af6b5387616c985814ee89 (diff)
parentf986c35689996caddfddb096ead8095c91f7f155 (diff)
Merge remote-tracking branch 'regulator/topic/max8973' into regulator-next
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/max8973-regulator.c49
1 files changed, 32 insertions, 17 deletions
diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index adb1414e5e37..0c5195a842e2 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -26,10 +26,12 @@
#include <linux/module.h>
#include <linux/init.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/max8973-regulator.h>
+#include <linux/regulator/of_regulator.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/slab.h>
@@ -100,6 +102,7 @@ struct max8973_chip {
int curr_vout_reg;
int curr_gpio_val;
bool valid_dvs_gpio;
+ struct regulator_ops ops;
};
/*
@@ -240,7 +243,7 @@ static unsigned int max8973_dcdc_get_mode(struct regulator_dev *rdev)
REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL;
}
-static struct regulator_ops max8973_dcdc_ops = {
+static const struct regulator_ops max8973_dcdc_ops = {
.get_voltage_sel = max8973_dcdc_get_voltage_sel,
.set_voltage_sel = max8973_dcdc_set_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
@@ -369,7 +372,8 @@ static int max8973_probe(struct i2c_client *client,
int ret;
pdata = client->dev.platform_data;
- if (!pdata) {
+
+ if (!pdata && !client->dev.of_node) {
dev_err(&client->dev, "No Platform data");
return -EIO;
}
@@ -388,30 +392,36 @@ static int max8973_probe(struct i2c_client *client,
}
i2c_set_clientdata(client, max);
+ max->ops = max8973_dcdc_ops;
max->dev = &client->dev;
max->desc.name = id->name;
max->desc.id = 0;
- max->desc.ops = &max8973_dcdc_ops;
+ max->desc.ops = &max->ops;
max->desc.type = REGULATOR_VOLTAGE;
max->desc.owner = THIS_MODULE;
max->desc.min_uV = MAX8973_MIN_VOLATGE;
max->desc.uV_step = MAX8973_VOLATGE_STEP;
max->desc.n_voltages = MAX8973_BUCK_N_VOLTAGE;
- if (!pdata->enable_ext_control) {
+ if (!pdata || !pdata->enable_ext_control) {
max->desc.enable_reg = MAX8973_VOUT;
max->desc.enable_mask = MAX8973_VOUT_ENABLE;
- max8973_dcdc_ops.enable = regulator_enable_regmap;
- max8973_dcdc_ops.disable = regulator_disable_regmap;
- max8973_dcdc_ops.is_enabled = regulator_is_enabled_regmap;
+ max->ops.enable = regulator_enable_regmap;
+ max->ops.disable = regulator_disable_regmap;
+ max->ops.is_enabled = regulator_is_enabled_regmap;
+ }
+
+ if (pdata) {
+ max->dvs_gpio = pdata->dvs_gpio;
+ max->enable_external_control = pdata->enable_ext_control;
+ max->curr_gpio_val = pdata->dvs_def_state;
+ max->curr_vout_reg = MAX8973_VOUT + pdata->dvs_def_state;
+ } else {
+ max->dvs_gpio = -EINVAL;
+ max->curr_vout_reg = MAX8973_VOUT;
}
- max->enable_external_control = pdata->enable_ext_control;
- max->dvs_gpio = pdata->dvs_gpio;
- max->curr_gpio_val = pdata->dvs_def_state;
- max->curr_vout_reg = MAX8973_VOUT + pdata->dvs_def_state;
max->lru_index[0] = max->curr_vout_reg;
- max->valid_dvs_gpio = false;
if (gpio_is_valid(max->dvs_gpio)) {
int gpio_flags;
@@ -437,16 +447,21 @@ static int max8973_probe(struct i2c_client *client,
max->lru_index[i] = i;
max->lru_index[0] = max->curr_vout_reg;
max->lru_index[max->curr_vout_reg] = 0;
+ } else {
+ max->valid_dvs_gpio = false;
}
- ret = max8973_init_dcdc(max, pdata);
- if (ret < 0) {
- dev_err(max->dev, "Max8973 Init failed, err = %d\n", ret);
- return ret;
+ if (pdata) {
+ ret = max8973_init_dcdc(max, pdata);
+ if (ret < 0) {
+ dev_err(max->dev, "Max8973 Init failed, err = %d\n", ret);
+ return ret;
+ }
}
config.dev = &client->dev;
- config.init_data = pdata->reg_init_data;
+ config.init_data = pdata ? pdata->reg_init_data :
+ of_get_regulator_init_data(&client->dev, client->dev.of_node);
config.driver_data = max;
config.of_node = client->dev.of_node;
config.regmap = max->regmap;