ARM: OMAP: Add method to register additional I2C busses on the command line, v2

This patch extends command line option "i2c_bus=bus_id,clkrate" so that
it allow to register additional I2C busses that are not registered with
omap_register_i2c_bus from board initialization code.

Purpose of this is to register additional board busses which are routed
to external connectors only without any on board I2C devices.

Cc: linux-i2c@vger.kernel.org
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index d775076d1563..ef9827f7c84e 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -831,6 +831,8 @@ and is between 256 and 4096 characters. It is defined in the file
                                terminal devices. Valid values: 0..8
 
         i2c_bus=        [HW] Override the default board specific I2C bus speed
+                             or register an additional I2C bus that is not
+                             registered from board initialization code.
                              Format:
                              <bus_id>,<clkrate>