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Commit 3ddb59d4 authored by Peter Huewe's avatar Peter Huewe Committed by Jean Delvare
Browse files

i2c: Make I2C available on UML 



Remove the global dependency of the I2C subsystem on HAS_IOMEM and
move the dependency to the i2c/busses submenu, with an exception for
i2c-stub.

The generic I2C part does not need to have HAS_IOMEM set and thus now
becomes available in UML, so the I2C subsystem can now be used, e.g.
by the i2c-stub driver, for development of I2C device drivers.

[JD: Some adjustments.]

[Heiko Carstens: Keep I2C disabled on S390.]

Signed-off-by: default avatarPeter Huewe <peterhuewe@gmx.de>
Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
parent 230da094

drivers/i2c/Kconfig

+16 −1
Original line number Diff line number Diff line
@@ -4,7 +4,7 @@ 


menuconfig I2C

	tristate "I2C support"

	depends on HAS_IOMEM

	depends on !S390

	select RT_MUTEXES

	---help---

	  I2C (pronounce: I-squared-C) is a slow serial bus protocol used in
@@ -49,6 +49,7 @@ config I2C_CHARDEV 


config I2C_MUX

	tristate "I2C bus multiplexing support"

	depends on HAS_IOMEM

	help

	  Say Y here if you want the I2C core to support the ability to

	  handle multiplexed I2C bus topologies, by presenting each
@@ -86,6 +87,19 @@ config I2C_SMBUS 
source drivers/i2c/algos/Kconfig

source drivers/i2c/busses/Kconfig



config I2C_STUB

	tristate "I2C/SMBus Test Stub"

	depends on EXPERIMENTAL && m

	default 'n'

	help

	  This module may be useful to developers of SMBus client drivers,

	  especially for certain kinds of sensor chips.



	  If you do build this module, be sure to read the notes and warnings

	  in <file:Documentation/i2c/i2c-stub>.



	  If you don't know what to do here, definitely say N.



config I2C_DEBUG_CORE

	bool "I2C Core debugging messages"

	help
@@ -103,6 +117,7 @@ config I2C_DEBUG_ALGO 


config I2C_DEBUG_BUS

	bool "I2C Bus debugging messages"

	depends on HAS_IOMEM

	help

	  Say Y here if you want the I2C bus drivers to produce a bunch of

	  debug messages to the system log.  Select this if you are having

drivers/i2c/busses/Kconfig

+1 −13
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 
#



menu "I2C Hardware Bus support"

	depends on HAS_IOMEM



comment "PC SMBus host controller drivers"

	depends on PCI
@@ -849,19 +850,6 @@ config I2C_SIBYTE 
	help

	  Supports the SiByte SOC on-chip I2C interfaces (2 channels).



config I2C_STUB

	tristate "I2C/SMBus Test Stub"

	depends on EXPERIMENTAL && m

	default 'n'

	help

	  This module may be useful to developers of SMBus client drivers,

	  especially for certain kinds of sensor chips.



	  If you do build this module, be sure to read the notes and warnings

	  in <file:Documentation/i2c/i2c-stub>.



	  If you don't know what to do here, definitely say N.



config SCx200_I2C

	tristate "NatSemi SCx200 I2C using GPIO pins (DEPRECATED)"

	depends on SCx200_GPIO