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-rw-r--r--drivers/i2c/busses/Kconfig6
-rw-r--r--drivers/i2c/chips/Kconfig8
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index e3450d16d8a..d25a8cbbec0 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -503,6 +503,7 @@ config I2C_PCA_ISA
tristate "PCA9564 on an ISA bus"
depends on I2C
select I2C_ALGOPCA
+ default n
help
This driver supports ISA boards using the Philips PCA 9564
Parallel bus to I2C bus controller
@@ -510,6 +511,11 @@ config I2C_PCA_ISA
This driver can also be built as a module. If so, the module
will be called i2c-pca-isa.
+ This device is almost undetectable and using this driver on a
+ system which doesn't have this device will result in long
+ delays when I2C/SMBus chip drivers are loaded (e.g. at boot
+ time). If unsure, say N.
+
config I2C_MV64XXX
tristate "Marvell mv64xxx I2C Controller"
depends on I2C && MV64X60 && EXPERIMENTAL
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 7aa5c38f085..87ee3ce5861 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -39,6 +39,7 @@ config SENSORS_EEPROM
config SENSORS_PCF8574
tristate "Philips PCF8574 and PCF8574A"
depends on I2C && EXPERIMENTAL
+ default n
help
If you say yes here you get support for Philips PCF8574 and
PCF8574A chips.
@@ -46,6 +47,9 @@ config SENSORS_PCF8574
This driver can also be built as a module. If so, the module
will be called pcf8574.
+ These devices are hard to detect and rarely found on mainstream
+ hardware. If unsure, say N.
+
config SENSORS_PCA9539
tristate "Philips PCA9539 16-bit I/O port"
depends on I2C && EXPERIMENTAL
@@ -59,12 +63,16 @@ config SENSORS_PCA9539
config SENSORS_PCF8591
tristate "Philips PCF8591"
depends on I2C && EXPERIMENTAL
+ default n
help
If you say yes here you get support for Philips PCF8591 chips.
This driver can also be built as a module. If so, the module
will be called pcf8591.
+ These devices are hard to detect and rarely found on mainstream
+ hardware. If unsure, say N.
+
config ISP1301_OMAP
tristate "Philips ISP1301 with OMAP OTG"
depends on I2C && ARCH_OMAP_OTG