regulator: pass additional of_node to regulator_register()

With device tree support for regulators, its needed that the
regulator_dev->dev device has the right of_node attached.
To be able to do this add an additional parameter to the
regulator_register() api, wherein the dt-adapted driver can
then pass this additional info onto the regulator core.

Change-Id: Idf7c4e532cc06fd00b8182b635d15dcfafb2cef9
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
[mbohan: Update regulator_register for msm regulator drivers]
Signed-off-by: Michael Bohan <mbohan@codeaurora.org>
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index b91e32f..1fd390c 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -152,7 +152,7 @@
 	vreg->desc.owner	= THIS_MODULE;
 
 	vreg->rdev = regulator_register(&vreg->desc, &pdev->dev,
-					&pdata->init_data, vreg);
+					&pdata->init_data, vreg, NULL);
 	if (IS_ERR(vreg->rdev)) {
 		rc = PTR_ERR(vreg->rdev);
 		pr_err("%s: regulator_register failed, rc=%d.\n", vreg->name,