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regulator: fixed: dt: support for input supply

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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>
This commit is contained in:
Laxman Dewangan
2012-07-05 18:12:01 +05:30
committed by Mark Brown
parent 4706fcab9b
commit 6be5bfc3bf
3 changed files with 22 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/regulator/fixed.c
+18 -1
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@@ -102,6 +102,9 @@ of_get_fixed_voltage_config(struct device *dev)
if (of_find_property(np, "gpio-open-drain", NULL))
config->gpio_is_open_drain = true;
if (of_find_property(np, "vin-supply", NULL))
config->input_supply = "vin";
return config;
}
@@ -169,6 +172,17 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
drvdata->desc.enable_time = config->startup_delay;
if (config->input_supply) {
drvdata->desc.supply_name = kstrdup(config->input_supply,
GFP_KERNEL);
if (!drvdata->desc.supply_name) {
dev_err(&pdev->dev,
"Failed to allocate input supply\n");
ret = -ENOMEM;
goto err_name;
}
}
if (config->microvolts)
drvdata->desc.n_voltages = 1;
@@ -202,7 +216,7 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
if (IS_ERR(drvdata->dev)) {
ret = PTR_ERR(drvdata->dev);
dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
goto err_name;
goto err_input;
}
platform_set_drvdata(pdev, drvdata);
@@ -212,6 +226,8 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
return 0;
err_input:
kfree(drvdata->desc.supply_name);
err_name:
kfree(drvdata->desc.name);
err:
@@ -223,6 +239,7 @@ static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev)
struct fixed_voltage_data *drvdata = platform_get_drvdata(pdev);
regulator_unregister(drvdata->dev);
kfree(drvdata->desc.supply_name);
kfree(drvdata->desc.name);
return 0;