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author | Axel Lin <axel.lin@gmail.com> | 2012-07-10 06:10:12 +0800 |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-07-10 14:48:42 +0100 |
commit | b669e0adb9f667acff16162ea0ff4fc404495b3c (patch) | |
tree | 4a05e6779061ff41d4c91cc0d66944a80bde35ba /drivers/regulator/max8952.c | |
parent | aa851193bdf140c85b660c2a070e53316ad2a4d3 (diff) | |
download | op-kernel-dev-b669e0adb9f667acff16162ea0ff4fc404495b3c.zip op-kernel-dev-b669e0adb9f667acff16162ea0ff4fc404495b3c.tar.gz |
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>
Diffstat (limited to 'drivers/regulator/max8952.c')
-rw-r--r-- | drivers/regulator/max8952.c | 59 |
1 files changed, 4 insertions, 55 deletions
diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c index ea58a44..355ca7b 100644 --- a/drivers/regulator/max8952.c +++ b/drivers/regulator/max8952.c @@ -51,7 +51,6 @@ struct max8952_data { bool vid0; bool vid1; - bool en; }; static int max8952_read_reg(struct max8952_data *max8952, u8 reg) @@ -80,38 +79,6 @@ static int max8952_list_voltage(struct regulator_dev *rdev, return (max8952->pdata->dvs_mode[selector] * 10 + 770) * 1000; } -static int max8952_is_enabled(struct regulator_dev *rdev) -{ - struct max8952_data *max8952 = rdev_get_drvdata(rdev); - return max8952->en; -} - -static int max8952_enable(struct regulator_dev *rdev) -{ - struct max8952_data *max8952 = rdev_get_drvdata(rdev); - - /* If not valid, assume "ALWAYS_HIGH" */ - if (gpio_is_valid(max8952->pdata->gpio_en)) - gpio_set_value(max8952->pdata->gpio_en, 1); - - max8952->en = true; - return 0; -} - -static int max8952_disable(struct regulator_dev *rdev) -{ - struct max8952_data *max8952 = rdev_get_drvdata(rdev); - - /* If not valid, assume "ALWAYS_HIGH" -> not permitted */ - if (gpio_is_valid(max8952->pdata->gpio_en)) - gpio_set_value(max8952->pdata->gpio_en, 0); - else - return -EPERM; - - max8952->en = false; - return 0; -} - static int max8952_get_voltage_sel(struct regulator_dev *rdev) { struct max8952_data *max8952 = rdev_get_drvdata(rdev); @@ -146,9 +113,6 @@ static int max8952_set_voltage_sel(struct regulator_dev *rdev, static struct regulator_ops max8952_ops = { .list_voltage = max8952_list_voltage, - .is_enabled = max8952_is_enabled, - .enable = max8952_enable, - .disable = max8952_disable, .get_voltage_sel = max8952_get_voltage_sel, .set_voltage_sel = max8952_set_voltage_sel, }; @@ -193,6 +157,10 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client, config.init_data = &pdata->reg_data; config.driver_data = max8952; + config.ena_gpio = pdata->gpio_en; + if (pdata->reg_data.constraints.boot_on) + config.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH; + max8952->rdev = regulator_register(®ulator, &config); if (IS_ERR(max8952->rdev)) { @@ -201,27 +169,9 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client, return ret; } - max8952->en = !!(pdata->reg_data.constraints.boot_on); max8952->vid0 = pdata->default_mode & 0x1; max8952->vid1 = (pdata->default_mode >> 1) & 0x1; - if (gpio_is_valid(pdata->gpio_en)) { - if (!gpio_request(pdata->gpio_en, "MAX8952 EN")) - gpio_direction_output(pdata->gpio_en, max8952->en); - else - err = 1; - } else - err = 2; - - if (err) { - dev_info(max8952->dev, "EN gpio invalid: assume that EN" - "is always High\n"); - max8952->en = 1; - pdata->gpio_en = -1; /* Mark invalid */ - } - - err = 0; - if (gpio_is_valid(pdata->gpio_vid0) && gpio_is_valid(pdata->gpio_vid1)) { if (!gpio_request(pdata->gpio_vid0, "MAX8952 VID0")) @@ -307,7 +257,6 @@ static int __devexit max8952_pmic_remove(struct i2c_client *client) gpio_free(pdata->gpio_vid0); gpio_free(pdata->gpio_vid1); - gpio_free(pdata->gpio_en); return 0; } |