fpga: lattice: reorganize to subdir layout

Create a lattice/ subdir
Move ice40* and machxo2* files to it.
Add a Kconfig and Makefile

Signed-off-by: Tom Rix <trix@redhat.com>

drivers/fpga/Kconfig

@@ -12,19 +12,6 @@ menuconfig FPGA
 
 if FPGA
 
-config FPGA_MGR_ICE40_SPI
-	tristate "Lattice iCE40 SPI"
-	depends on OF && SPI
-	help
-	  FPGA manager driver support for Lattice iCE40 FPGAs over SPI.
-
-config FPGA_MGR_MACHXO2_SPI
-	tristate "Lattice MachXO2 SPI"
-	depends on SPI
-	help
-	  FPGA manager driver support for Lattice MachXO2 configuration
-	  over slave SPI interface.
-
 config FPGA_BRIDGE
 	tristate "FPGA Bridge Framework"
 	help
@@ -47,6 +34,7 @@ config OF_FPGA_REGION
 	  overlay.
 
 source "drivers/fpga/altera/Kconfig"
+source "drivers/fpga/lattice/Kconfig"
 source "drivers/fpga/dfl/Kconfig"
 source "drivers/fpga/xilinx/Kconfig"
 

drivers/fpga/Makefile

@@ -4,19 +4,16 @@
 #
 
 # Core FPGA Manager Framework
-obj-$(CONFIG_FPGA)			+= fpga-mgr.o
-
-# FPGA Manager Drivers
-obj-$(CONFIG_FPGA_MGR_ICE40_SPI)	+= ice40-spi.o
-obj-$(CONFIG_FPGA_MGR_MACHXO2_SPI)	+= machxo2-spi.o
+obj-$(CONFIG_FPGA) += fpga-mgr.o
 
 # FPGA Bridge Drivers
-obj-$(CONFIG_FPGA_BRIDGE)		+= fpga-bridge.o
+obj-$(CONFIG_FPGA_BRIDGE) += fpga-bridge.o
 
 # High Level Interfaces
-obj-$(CONFIG_FPGA_REGION)		+= fpga-region.o
-obj-$(CONFIG_OF_FPGA_REGION)		+= of-fpga-region.o
+obj-$(CONFIG_FPGA_REGION) += fpga-region.o
+obj-$(CONFIG_OF_FPGA_REGION) += of-fpga-region.o
 
 obj-$(CONFIG_FPGA_ALTERA) += altera/
 obj-$(CONFIG_FPGA_DFL) += dfl/
+obj-$(CONFIG_FPGA_LATTICE) += lattice/
 obj-$(CONFIG_FPGA_XILINX) += xilinx/

drivers/fpga/lattice/Kconfig

@@ -0,0 +1,22 @@
+config FPGA_LATTICE
+	bool "Lattice Devices"
+	default y
+	help
+	  If you have a lattice fpga, say Y.
+
+if FPGA_LATTICE
+
+config FPGA_MGR_ICE40_SPI
+	tristate "Lattice iCE40 SPI"
+	depends on OF && SPI
+	help
+	  FPGA manager driver support for Lattice iCE40 FPGAs over SPI.
+
+config FPGA_MGR_MACHXO2_SPI
+	tristate "Lattice MachXO2 SPI"
+	depends on SPI
+	help
+	  FPGA manager driver support for Lattice MachXO2 configuration
+	  over slave SPI interface.
+
+endif #FPGA_LATTICE

drivers/fpga/lattice/Makefile

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-$(CONFIG_FPGA_MGR_ICE40_SPI) += ice40-spi.o
+obj-$(CONFIG_FPGA_MGR_MACHXO2_SPI) += machxo2-spi.o