[PATCH 6/9] regulator: make fixed regulator driver extract data from dt

[Rajendra Nayak <rnayak@ti.com>]

Modify the fixed regulator driver to extract fixed_voltage_config from
device tree when passed, instead of getting it through platform_data
structures (on non-DT builds)

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
---
 drivers/regulator/fixed.c |   18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)

diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index c09f791..0a9a10d 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -140,10 +140,15 @@ static struct regulator_ops fixed_voltage_ops = {
 
 static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
 {
-	struct fixed_voltage_config *config = pdev->dev.platform_data;
+	struct fixed_voltage_config *config;
 	struct fixed_voltage_data *drvdata;
 	int ret;
 
+	if (pdev->dev.of_node)
+		config = of_get_fixed_voltage_config(&pdev->dev);
+	else
+		config = pdev->dev.platform_data;
+
 	drvdata = kzalloc(sizeof(struct fixed_voltage_data), GFP_KERNEL);
 	if (drvdata == NULL) {
 		dev_err(&pdev->dev, "Failed to allocate device data\n");
@@ -252,12 +257,23 @@ static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#if defined(CONFIG_OF)
+static const struct of_device_id fixed_of_match[] __devinitconst = {
+	{ .compatible = "regulator-fixed", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, fixed_of_match);
+#else
+#define fixed_of_match NULL
+#endif
+
 static struct platform_driver regulator_fixed_voltage_driver = {
 	.probe		= reg_fixed_voltage_probe,
 	.remove		= __devexit_p(reg_fixed_voltage_remove),
 	.driver		= {
 		.name		= "reg-fixed-voltage",
 		.owner		= THIS_MODULE,
+		.of_match_table = fixed_of_match,
 	},
 };
 
-- 
1.7.1