regulator: max8952: Use core GPIO enable support
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Коммит
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@ -51,7 +51,6 @@ struct max8952_data {
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bool vid0;
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bool vid1;
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bool en;
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};
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static int max8952_read_reg(struct max8952_data *max8952, u8 reg)
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@ -80,38 +79,6 @@ static int max8952_list_voltage(struct regulator_dev *rdev,
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return (max8952->pdata->dvs_mode[selector] * 10 + 770) * 1000;
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}
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static int max8952_is_enabled(struct regulator_dev *rdev)
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{
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struct max8952_data *max8952 = rdev_get_drvdata(rdev);
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return max8952->en;
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}
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static int max8952_enable(struct regulator_dev *rdev)
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{
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struct max8952_data *max8952 = rdev_get_drvdata(rdev);
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/* If not valid, assume "ALWAYS_HIGH" */
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if (gpio_is_valid(max8952->pdata->gpio_en))
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gpio_set_value(max8952->pdata->gpio_en, 1);
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max8952->en = true;
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return 0;
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}
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static int max8952_disable(struct regulator_dev *rdev)
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{
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struct max8952_data *max8952 = rdev_get_drvdata(rdev);
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/* If not valid, assume "ALWAYS_HIGH" -> not permitted */
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if (gpio_is_valid(max8952->pdata->gpio_en))
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gpio_set_value(max8952->pdata->gpio_en, 0);
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else
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return -EPERM;
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max8952->en = false;
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return 0;
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}
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static int max8952_get_voltage_sel(struct regulator_dev *rdev)
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{
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struct max8952_data *max8952 = rdev_get_drvdata(rdev);
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@ -146,9 +113,6 @@ static int max8952_set_voltage_sel(struct regulator_dev *rdev,
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static struct regulator_ops max8952_ops = {
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.list_voltage = max8952_list_voltage,
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.is_enabled = max8952_is_enabled,
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.enable = max8952_enable,
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.disable = max8952_disable,
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.get_voltage_sel = max8952_get_voltage_sel,
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.set_voltage_sel = max8952_set_voltage_sel,
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};
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@ -193,6 +157,10 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client,
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config.init_data = &pdata->reg_data;
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config.driver_data = max8952;
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config.ena_gpio = pdata->gpio_en;
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if (pdata->reg_data.constraints.boot_on)
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config.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH;
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max8952->rdev = regulator_register(®ulator, &config);
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if (IS_ERR(max8952->rdev)) {
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@ -201,27 +169,9 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client,
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return ret;
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}
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max8952->en = !!(pdata->reg_data.constraints.boot_on);
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max8952->vid0 = pdata->default_mode & 0x1;
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max8952->vid1 = (pdata->default_mode >> 1) & 0x1;
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if (gpio_is_valid(pdata->gpio_en)) {
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if (!gpio_request(pdata->gpio_en, "MAX8952 EN"))
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gpio_direction_output(pdata->gpio_en, max8952->en);
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else
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err = 1;
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} else
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err = 2;
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if (err) {
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dev_info(max8952->dev, "EN gpio invalid: assume that EN"
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"is always High\n");
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max8952->en = 1;
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pdata->gpio_en = -1; /* Mark invalid */
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}
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err = 0;
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if (gpio_is_valid(pdata->gpio_vid0) &&
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gpio_is_valid(pdata->gpio_vid1)) {
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if (!gpio_request(pdata->gpio_vid0, "MAX8952 VID0"))
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@ -307,7 +257,6 @@ static int __devexit max8952_pmic_remove(struct i2c_client *client)
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gpio_free(pdata->gpio_vid0);
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gpio_free(pdata->gpio_vid1);
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gpio_free(pdata->gpio_en);
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return 0;
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}
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