regulator: Move regulator drivers to subsys_initcall()

Regulators need to be available early in init in order to allow them
to be available for consumers when requested. This is generally done
by registering them at subsys_initcall() time but not all regulator
drivers have done that. Convert these drivers to do so in order to
mimimise future support.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

drivers/regulator/da903x.c

@@ -504,7 +504,7 @@ static int __init da903x_regulator_init(void)
 {
 	return platform_driver_register(&da903x_regulator_driver);
 }
-module_init(da903x_regulator_init);
+subsys_initcall(da903x_regulator_init);
 
 static void __exit da903x_regulator_exit(void)
 {

drivers/regulator/fixed.c

@@ -117,7 +117,7 @@ static int __init regulator_fixed_voltage_init(void)
 {
 	return platform_driver_register(&regulator_fixed_voltage_driver);
 }
-module_init(regulator_fixed_voltage_init);
+subsys_initcall(regulator_fixed_voltage_init);
 
 static void __exit regulator_fixed_voltage_exit(void)
 {

drivers/regulator/pcf50633-regulator.c

@@ -316,7 +316,7 @@ static int __init pcf50633_regulator_init(void)
 {
 	return platform_driver_register(&pcf50633_regulator_driver);
 }
-module_init(pcf50633_regulator_init);
+subsys_initcall(pcf50633_regulator_init);
 
 static void __exit pcf50633_regulator_exit(void)
 {

drivers/regulator/wm8400-regulator.c

@@ -380,7 +380,7 @@ static int __init wm8400_regulator_init(void)
 {
 	return platform_driver_register(&wm8400_regulator_driver);
 }
-module_init(wm8400_regulator_init);
+subsys_initcall(wm8400_regulator_init);
 
 static void __exit wm8400_regulator_exit(void)
 {