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/arch/arm/mach-msm/footswitch-pcom.c b/arch/arm/mach-msm/footswitch-pcom.c
index 673253b..73cbab1 100644
--- a/arch/arm/mach-msm/footswitch-pcom.c
+++ b/arch/arm/mach-msm/footswitch-pcom.c
@@ -266,7 +266,8 @@
 	if (rc)
 		return rc;
 
-	fs->rdev = regulator_register(&fs->desc, &pdev->dev, init_data, fs);
+	fs->rdev = regulator_register(&fs->desc, &pdev->dev,
+							init_data, fs, NULL);
 	if (IS_ERR(fs->rdev)) {
 		pr_err("regulator_register(%s) failed\n", fs->desc.name);
 		rc = PTR_ERR(fs->rdev);