regulator: core: Use a struct to pass in regulator runtime configuration

Rather than adding new arguments to regulator_register() every time we
want to add a new bit of dynamic information at runtime change the function
to take these via a struct. By doing this we avoid needing to do further
changes like the recent addition of device tree support which required each
regulator driver to be updated to take an additional parameter.

The regulator_desc which should (mostly) be static data is still passed
separately as most drivers are able to configure this statically at build
time.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index ad0fc78c3cb4..f93b06b1e7ec 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -172,6 +172,7 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev)
 {
         struct gpio_regulator_config *config = pdev->dev.platform_data;
         struct gpio_regulator_data *drvdata;
+        struct regulator_config cfg = { };
         int ptr, ret, state;
 
         drvdata = devm_kzalloc(&pdev->dev, sizeof(struct gpio_regulator_data),
@@ -284,8 +285,11 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev)
         }
         drvdata->state = state;
 
-        drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev,
-                                          config->init_data, drvdata, NULL);
+        cfg.dev = &pdev->dev;
+        cfg.init_data = config->init_data;
+        cfg.driver_data = &drvdata;
+
+        drvdata->dev = regulator_register(&drvdata->desc, &cfg);
         if (IS_ERR(drvdata->dev)) {
                 ret = PTR_ERR(drvdata->dev);
                 dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);