regulator: core kbuild files

This patch adds kernel build support for the regulator core.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>

3 files changed, 60 insertions, 0 deletions

diff --git a/drivers/Makefile b/drivers/Makefile
index 54ec5e718c0e..a280ab3d0833 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -97,3 +97,4 @@ obj-$(CONFIG_PPC_PS3)		+= ps3/
 obj-$(CONFIG_OF)                += of/
 obj-$(CONFIG_SSB)               += ssb/
 obj-$(CONFIG_VIRTIO)            += virtio/
+obj-$(CONFIG_REGULATOR)         += regulator/
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
new file mode 100644
index 000000000000..84f89ecce69e
--- /dev/null
+++ b/drivers/regulator/Kconfig
@@ -0,0 +1,49 @@
+menu "Voltage and Current regulators"
+
+config REGULATOR
+        bool "Voltage and Current Regulator Support"
+        default n
+        help
+          Generic Voltage and Current Regulator support.
+
+          This framework is designed to provide a generic interface to voltage
+          and current regulators within the Linux kernel. It's intended to
+          provide voltage and current control to client or consumer drivers and
+          also provide status information to user space applications through a
+          sysfs interface.
+
+          The intention is to allow systems to dynamically control regulator
+          output in order to save power and prolong battery life. This applies
+          to both voltage regulators (where voltage output is controllable) and
+          current sinks (where current output is controllable).
+
+          This framework safely compiles out if not selected so that client
+          drivers can still be used in systems with no software controllable
+          regulators.
+
+          If unsure, say no.
+
+config REGULATOR_DEBUG
+        bool "Regulator debug support"
+        depends on REGULATOR
+        help
+          Say yes here to enable debugging support.
+
+config REGULATOR_FIXED_VOLTAGE
+        tristate
+        default n
+        select REGULATOR
+
+config REGULATOR_VIRTUAL_CONSUMER
+        tristate "Virtual regulator consumer support"
+        default n
+        select REGULATOR
+        help
+          This driver provides a virtual consumer for the voltage and
+          current regulator API which provides sysfs controls for
+          configuring the supplies requested.  This is mainly useful
+          for test purposes.
+
+          If unsure, say no.
+
+endmenu
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
new file mode 100644
index 000000000000..29528b78c8de
--- /dev/null
+++ b/drivers/regulator/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for regulator drivers.
+#
+
+
+obj-$(CONFIG_REGULATOR) += core.o
+obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
+obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
+
+ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG