HSI: hsi_char: Add HSI char device kernel configuration

Add HSI character device kernel configuration
Signed-off-by: NAndras Domokos <andras.domokos@nokia.com>
Signed-off-by: NCarlos Chinea <carlos.chinea@nokia.com>

drivers/hsi/Kconfig

@@ -14,4 +14,6 @@ config HSI_BOARDINFO
 	bool
 	default y
 
+source "drivers/hsi/clients/Kconfig"
+
 endif # HSI

drivers/hsi/Makefile

@@ -3,3 +3,4 @@
 #
 obj-$(CONFIG_HSI_BOARDINFO)	+= hsi_boardinfo.o
 obj-$(CONFIG_HSI)		+= hsi.o
+obj-y				+= clients/

drivers/hsi/clients/Kconfig

+#
+# HSI clients configuration
+#
+
+comment "HSI clients"
+
+config HSI_CHAR
+	tristate "HSI/SSI character driver"
+	depends on HSI
+	---help---
+	  If you say Y here, you will enable the HSI/SSI character driver.
+	  This driver provides a simple character device interface for
+	  serial communication with the cellular modem over HSI/SSI bus.

drivers/hsi/clients/Makefile

+#
+# Makefile for HSI clients
+#
+
+obj-$(CONFIG_HSI_CHAR)	+= hsi_char.o

include/linux/Kbuild

@@ -3,6 +3,7 @@ header-y += can/
 header-y += caif/
 header-y += dvb/
 header-y += hdlc/
+header-y += hsi/
 header-y += isdn/
 header-y += mmc/
 header-y += nfsd/

include/linux/hsi/Kbuild

+header-y += hsi_char.h