regulator: fixed: dt: support for input supply
Add support for input supply in DT parsing of node. The input supply will be provided by the property "vin-supply" in the regulator node. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -10,6 +10,7 @@ Optional properties:
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If this property is missing, the default assumed is Active low.
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- gpio-open-drain: GPIO is open drain type.
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If this property is missing then default assumption is false.
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-vin-supply: Input supply name.
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Any property defined as part of the core regulator
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binding, defined in regulator.txt, can also be used.
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@ -29,4 +30,5 @@ Example:
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enable-active-high;
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regulator-boot-on;
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gpio-open-drain;
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vin-supply = <&parent_reg>;
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};
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@ -102,6 +102,9 @@ of_get_fixed_voltage_config(struct device *dev)
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if (of_find_property(np, "gpio-open-drain", NULL))
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config->gpio_is_open_drain = true;
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if (of_find_property(np, "vin-supply", NULL))
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config->input_supply = "vin";
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return config;
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}
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@ -169,6 +172,17 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
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drvdata->desc.enable_time = config->startup_delay;
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if (config->input_supply) {
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drvdata->desc.supply_name = kstrdup(config->input_supply,
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GFP_KERNEL);
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if (!drvdata->desc.supply_name) {
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dev_err(&pdev->dev,
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"Failed to allocate input supply\n");
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ret = -ENOMEM;
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goto err_name;
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}
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}
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if (config->microvolts)
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drvdata->desc.n_voltages = 1;
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@ -202,7 +216,7 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
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if (IS_ERR(drvdata->dev)) {
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ret = PTR_ERR(drvdata->dev);
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dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
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goto err_name;
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goto err_input;
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}
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platform_set_drvdata(pdev, drvdata);
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@ -212,6 +226,8 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
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return 0;
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err_input:
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kfree(drvdata->desc.supply_name);
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err_name:
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kfree(drvdata->desc.name);
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err:
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@ -223,6 +239,7 @@ static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev)
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struct fixed_voltage_data *drvdata = platform_get_drvdata(pdev);
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regulator_unregister(drvdata->dev);
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kfree(drvdata->desc.supply_name);
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kfree(drvdata->desc.name);
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return 0;
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@ -22,6 +22,7 @@ struct regulator_init_data;
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/**
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* struct fixed_voltage_config - fixed_voltage_config structure
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* @supply_name: Name of the regulator supply
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* @input_supply: Name of the input regulator supply
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* @microvolts: Output voltage of regulator
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* @gpio: GPIO to use for enable control
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* set to -EINVAL if not used
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@ -46,6 +47,7 @@ struct regulator_init_data;
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*/
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struct fixed_voltage_config {
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const char *supply_name;
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const char *input_supply;
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int microvolts;
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int gpio;
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unsigned startup_delay;
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