[PATCH] twl-regulator: Allow CONFIG_TWL4030_ALLOW_UNSUPPORTED to berequested.

[NeilBrown]

twl-regulator.c changes behaviour slightly depending on
  CONFIG_TWL4030_ALLOW_UNSUPPORTED
However that config option is not currently listed in any Kconfig
file.
So add the option to allow it to be chosen.

Signed-off-by: NeilBrown <neilb@xxxxxxx>

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 36db5a4..1d24cac 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -338,6 +338,15 @@ config REGULATOR_TWL4030
 	  This driver supports the voltage regulators provided by
 	  this family of companion chips.
 
+config TWL4030_ALLOW_UNSUPPORTED
+	bool "Allow unsupported voltages on TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
+	depends on REGULATOR_TWL4030
+	help
+	  TWL4030 regulator can (possibly) supply voltages that are not
+	  explicitly supported by TI.  Set this option to allow those
+	  voltages to be requested.
+	  If unsure, say 'N'
+
 config REGULATOR_WM831X
 	tristate "Wolfson Microelectronics WM831x PMIC regulators"
 	depends on MFD_WM831X

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