[PATCH] i2c-parport: Make type parameter mandatory

This patch forces the user to specify what type of adapter is present when
loading i2c-parport or i2c-parport-light.  If none is specified, the driver
init simply fails - instead of assuming adapter type 0.

This alleviates the sometimes lengthy boot time delays which can be caused
by accidentally building one of these into a kernel along with several i2c
slave drivers that have lengthy probe routines (e.g. hwmon drivers).

Kconfig and documentation updated accordingly.

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 089c6f5b24de..d6d44946a283 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -286,7 +286,10 @@ config I2C_PARPORT
           This driver is a replacement for (and was inspired by) an older
           driver named i2c-philips-par.  The new driver supports more devices,
           and makes it easier to add support for new devices.
-          
+
+          An adapter type parameter is now mandatory.  Please read the file
+          Documentation/i2c/busses/i2c-parport for details.
+
           Another driver exists, named i2c-parport-light, which doesn't depend
           on the parport driver.  This is meant for embedded systems. Don't say
           Y here if you intend to say Y or M there.