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i2c: Separate Kconfig option for i2c-smbus 

Having a separate Kconfig option for i2c-smbus makes it possible to
build that support as a module even when i2c-core itself is built-in.
Bus drivers which implement SMBus alert should select this option, so
in most cases this option is hidden and the user doesn't have to care
about it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Trent Piepho <tpiepho@freescale.com>
This commit is contained in:
Jean Delvare 2010-03-02 12:23:43 +01:00
parent b5527a7766
commit e2ca307439
2 changed files with 12 additions and 1 deletions
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10
drivers/i2c/Kconfig
View File

@ -61,6 +61,16 @@ config I2C_HELPER_AUTO
In doubt, say Y. In doubt, say Y.
config I2C_SMBUS
tristate "SMBus-specific protocols" if !I2C_HELPER_AUTO
help
Say Y here if you want support for SMBus extensions to the I2C
specification. At the moment, the only supported extension is
the SMBus alert protocol.
This support is also available as a module. If so, the module
will be called i2c-smbus.
source drivers/i2c/algos/Kconfig source drivers/i2c/algos/Kconfig
source drivers/i2c/busses/Kconfig source drivers/i2c/busses/Kconfig
source drivers/i2c/chips/Kconfig source drivers/i2c/chips/Kconfig

3
drivers/i2c/Makefile
View File

@ -3,7 +3,8 @@
# #
obj-$(CONFIG_I2C_BOARDINFO) += i2c-boardinfo.o obj-$(CONFIG_I2C_BOARDINFO) += i2c-boardinfo.o
obj-$(CONFIG_I2C) += i2c-core.o i2c-smbus.o obj-$(CONFIG_I2C) += i2c-core.o
obj-$(CONFIG_I2C_SMBUS) += i2c-smbus.o
obj-$(CONFIG_I2C_CHARDEV) += i2c-dev.o obj-$(CONFIG_I2C_CHARDEV) += i2c-dev.o
obj-y += busses/ chips/ algos/ obj-y += busses/ chips/ algos/