Re: [RFC][PATCH] I2C driver

[Josh Boyer <jwboyer@linux.vnet.ibm.com>]

On Thu, 21 Aug 2008 13:06:24 -0400
"Steven A. Falco" <sfalco@harris.com> wrote:

> Josh Boyer wrote:
> > On Thu, 2008-08-21 at 12:21 -0400, Steven A. Falco wrote:
> >> The following patch enables building the I2C driver for 4xx chips.
> >> Tested on a Sequoia board.  Comments invited.
> >>
> >> Signed-off-by: Steven A. Falco <sfalco@harris.com>
> >> ---
> >>  drivers/i2c/busses/Kconfig      |    7 +++++++
> >>  drivers/i2c/busses/i2c-ibm_of.c |    5 ++---
> >>  2 files changed, 9 insertions(+), 3 deletions(-)
> > 
> > That file doesn't even exist in the mainline kernel:
> > 
> > [jwboyer@yoda linux-2.6]$ find drivers/i2c/ -name *ibm*
> > drivers/i2c/busses/i2c-ibm_iic.c
> > drivers/i2c/busses/i2c-ibm_iic.h
> > [jwboyer@yoda linux-2.6]$ 
> > 
> > josh
> > 
> > 
> 
> Interesting.  Ok - I found the problem with the driver you *did* find:

.26 doesn't have what can be considered awesome i2c support.  But the
latest git trees are much better.  See git commits:

d3dc685eb5ef64aa695dabb74f00440ec3ab6796
and
b1204e6ec16468ebf89d9d818bfe425ca7adcdf3

They deal with the problems you highlighted with the listing and index
stuff.  There might be more issues outstanding, but using the latest
kernel is going to get you better support and prevent you from finding
problems that are already fixed :)

josh