i2c: Group bus drivers by type

The list of I2C/SMBus bus drivers is growing and it is sometimes
difficult for the users to figure out what drivers they should enable.
By grouping the drivers by type, I hope to make the selection easier.
Signed-off-by: NJean Delvare <khali@linux-fr.org>

drivers/i2c/busses/Makefile

@@ -2,55 +2,66 @@
 # Makefile for the i2c bus drivers.
 #
 
+# PC SMBus host controller drivers
 obj-$(CONFIG_I2C_ALI1535)	+= i2c-ali1535.o
 obj-$(CONFIG_I2C_ALI1563)	+= i2c-ali1563.o
 obj-$(CONFIG_I2C_ALI15X3)	+= i2c-ali15x3.o
 obj-$(CONFIG_I2C_AMD756)	+= i2c-amd756.o
 obj-$(CONFIG_I2C_AMD756_S4882)	+= i2c-amd756-s4882.o
 obj-$(CONFIG_I2C_AMD8111)	+= i2c-amd8111.o
+obj-$(CONFIG_I2C_I801)		+= i2c-i801.o
+obj-$(CONFIG_I2C_NFORCE2)	+= i2c-nforce2.o
+obj-$(CONFIG_I2C_NFORCE2_S4985)	+= i2c-nforce2-s4985.o
+obj-$(CONFIG_I2C_PIIX4)		+= i2c-piix4.o
+obj-$(CONFIG_I2C_SIS5595)	+= i2c-sis5595.o
+obj-$(CONFIG_I2C_SIS630)	+= i2c-sis630.o
+obj-$(CONFIG_I2C_SIS96X)	+= i2c-sis96x.o
+obj-$(CONFIG_I2C_VIA)		+= i2c-via.o
+obj-$(CONFIG_I2C_VIAPRO)	+= i2c-viapro.o
+
+# Mac SMBus host controller drivers
+obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
+obj-$(CONFIG_I2C_POWERMAC)	+= i2c-powermac.o
+
+# Embebbed system I2C/SMBus host controller drivers
 obj-$(CONFIG_I2C_AT91)		+= i2c-at91.o
 obj-$(CONFIG_I2C_AU1550)	+= i2c-au1550.o
 obj-$(CONFIG_I2C_BLACKFIN_TWI)	+= i2c-bfin-twi.o
 obj-$(CONFIG_I2C_DAVINCI)	+= i2c-davinci.o
-obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
 obj-$(CONFIG_I2C_GPIO)		+= i2c-gpio.o
-obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
-obj-$(CONFIG_I2C_I801)		+= i2c-i801.o
 obj-$(CONFIG_I2C_IBM_IIC)	+= i2c-ibm_iic.o
 obj-$(CONFIG_I2C_IOP3XX)	+= i2c-iop3xx.o
 obj-$(CONFIG_I2C_IXP2000)	+= i2c-ixp2000.o
-obj-$(CONFIG_I2C_POWERMAC)	+= i2c-powermac.o
 obj-$(CONFIG_I2C_MPC)		+= i2c-mpc.o
 obj-$(CONFIG_I2C_MV64XXX)	+= i2c-mv64xxx.o
-obj-$(CONFIG_I2C_NFORCE2)	+= i2c-nforce2.o
-obj-$(CONFIG_I2C_NFORCE2_S4985)	+= i2c-nforce2-s4985.o
 obj-$(CONFIG_I2C_OCORES)	+= i2c-ocores.o
 obj-$(CONFIG_I2C_OMAP)		+= i2c-omap.o
-obj-$(CONFIG_I2C_PARPORT)	+= i2c-parport.o
-obj-$(CONFIG_I2C_PARPORT_LIGHT)	+= i2c-parport-light.o
 obj-$(CONFIG_I2C_PASEMI)	+= i2c-pasemi.o
-obj-$(CONFIG_I2C_PCA_ISA)	+= i2c-pca-isa.o
-obj-$(CONFIG_I2C_PCA_PLATFORM)	+= i2c-pca-platform.o
-obj-$(CONFIG_I2C_PIIX4)		+= i2c-piix4.o
-obj-$(CONFIG_I2C_PMCMSP)	+= i2c-pmcmsp.o
 obj-$(CONFIG_I2C_PNX)		+= i2c-pnx.o
 obj-$(CONFIG_I2C_PXA)		+= i2c-pxa.o
 obj-$(CONFIG_I2C_S3C2410)	+= i2c-s3c2410.o
 obj-$(CONFIG_I2C_SH7760)	+= i2c-sh7760.o
 obj-$(CONFIG_I2C_SH_MOBILE)	+= i2c-sh_mobile.o
-obj-$(CONFIG_I2C_SIBYTE)	+= i2c-sibyte.o
 obj-$(CONFIG_I2C_SIMTEC)	+= i2c-simtec.o
-obj-$(CONFIG_I2C_SIS5595)	+= i2c-sis5595.o
-obj-$(CONFIG_I2C_SIS630)	+= i2c-sis630.o
-obj-$(CONFIG_I2C_SIS96X)	+= i2c-sis96x.o
-obj-$(CONFIG_I2C_STUB)		+= i2c-stub.o
+obj-$(CONFIG_I2C_VERSATILE)	+= i2c-versatile.o
+
+# External I2C/SMBus adapter drivers
+obj-$(CONFIG_I2C_PARPORT)	+= i2c-parport.o
+obj-$(CONFIG_I2C_PARPORT_LIGHT)	+= i2c-parport-light.o
 obj-$(CONFIG_I2C_TAOS_EVM)	+= i2c-taos-evm.o
 obj-$(CONFIG_I2C_TINY_USB)	+= i2c-tiny-usb.o
-obj-$(CONFIG_I2C_VERSATILE)	+= i2c-versatile.o
-obj-$(CONFIG_I2C_ACORN)		+= i2c-acorn.o
-obj-$(CONFIG_I2C_VIA)		+= i2c-via.o
-obj-$(CONFIG_I2C_VIAPRO)	+= i2c-viapro.o
+
+# Graphics adapter I2C/DDC channel drivers
 obj-$(CONFIG_I2C_VOODOO3)	+= i2c-voodoo3.o
+
+# Other I2C/SMBus bus drivers
+obj-$(CONFIG_I2C_ACORN)		+= i2c-acorn.o
+obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
+obj-$(CONFIG_I2C_PCA_ISA)	+= i2c-pca-isa.o
+obj-$(CONFIG_I2C_PCA_PLATFORM)	+= i2c-pca-platform.o
+obj-$(CONFIG_I2C_PMCMSP)	+= i2c-pmcmsp.o
+obj-$(CONFIG_I2C_SIBYTE)	+= i2c-sibyte.o
+obj-$(CONFIG_I2C_STUB)		+= i2c-stub.o
 obj-$(CONFIG_SCx200_ACB)	+= scx200_acb.o
 obj-$(CONFIG_SCx200_I2C)	+= scx200_i2c.o