summaryrefslogtreecommitdiff
path: root/drivers/i2c/busses
diff options
context:
space:
mode:
authorJean Delvare <khali@linux-fr.org>2006-06-04 21:59:57 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-22 22:10:33 +0400
commitaee62305345863430a937af289b9bd080a100dac (patch)
tree7e145ccf7052fd298ed94b75e7f9e85a64999a53 /drivers/i2c/busses
parent177d165d7c2ec424007d6241a93d0cb83d953c51 (diff)
downloadlinux-aee62305345863430a937af289b9bd080a100dac.tar.xz
[PATCH] i2c: Suggest N for rare devices in Kconfig
Improve the Kconfig help text of the follwing i2c drivers: * busses/i2c-pca-isa.c * chips/pcf8574.c * chips/pcf8591.c These are hard to detect and building them into the kernel results in long delays at boot. March 2006, thread "I2C_PCA_ISA causes boot delays" http://marc.theaimsgroup.com/?l=linux-kernel&m=114360399415744&w=2 April 2006, thread "i2c-related 1-minute hang during bootup" http://marc.theaimsgroup.com/?l=linux-kernel&m=114640992330721&w=2 Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c/busses')
-rw-r--r--drivers/i2c/busses/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index e3450d16d8a4..d25a8cbbec0a 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