slimbus: qcom: Add Qualcomm Slimbus controller driver

This controller driver programs manager, interface, and framer
devices for Qualcomm's slimbus HW block.
Manager component currently implements logical address setting,
and messaging interface.
Interface device reports bus synchronization information, and framer
device clocks the bus from the time it's woken up, until clock-pause
is executed by the manager device.

Signed-off-by: Sagar Dharia <sdharia@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviwed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/slimbus/Kconfig

@@ -13,5 +13,11 @@ menuconfig SLIMBUS
 if SLIMBUS
 
 # SLIMbus controllers
+config SLIM_QCOM_CTRL
+	tristate "Qualcomm SLIMbus Manager Component"
+	depends on SLIMBUS
+	help
+	  Select driver if Qualcomm's SLIMbus Manager Component is
+	  programmed using Linux kernel.
 
 endif

drivers/slimbus/Makefile

@@ -4,3 +4,7 @@
 #
 obj-$(CONFIG_SLIMBUS)			+= slimbus.o
 slimbus-y				:= core.o messaging.o sched.o
+
+#Controllers
+obj-$(CONFIG_SLIM_QCOM_CTRL)		+= slim-qcom-ctrl.o
+slim-qcom-ctrl-y			:= qcom-ctrl.o