[U-Boot] [U-Boot,PATCHv4] pca953x: support 16-pin devices

Peter Tyser ptyser at xes-inc.com
Thu Jan 13 07:08:03 CET 2011


On Thu, 2011-01-13 at 17:02 +1300, Chris Packham wrote:
> On Mon, Jan 10, 2011 at 8:02 PM, Heiko Schocher <hs at denx.de> wrote:
> > Hello Chris,
> >
> > Sorry for the late reply, but just looked in patchwork and found that
> > I am responsible for your patch, so ...
> >
> > Chris Packham wrote:
> >> This adds support for for the PCA9535/PCA9539 family of gpio devices which
> >> have 16 output pins.
> >>
> >> To let the driver know which devices are 16-pin it is necessary to define
> >> CONFIG_SYS_I2C_PCA953X_WIDTH in your board config file. This is used to
> >> create an array of {chip, ngpio} tuples that are used to determine the
> >> width of a particular chip. For backwards compatibility it is assumed that
> >> any chip not defined in CONFIG_SYS_I2C_PCA953X_WIDTH has 8 pins.
> >>
> >> Acked-by: Peter Tyser <ptyser at xes-inc.com>
> >> Tested-by: Peter Tyser <ptyser at xes-inc.com>
> >> Signed-off-by: Chris Packham <chris.packham at alliedtelesis.co.nz>
> >>
> >> ---
> >> Changes since v3:
> >> - pca953x_ngpio is now a function in all cases.
> >> - Added Peter's ACK to the commit message.
> >>
> >>  README                 |    4 ++
> >>  drivers/gpio/pca953x.c |  114 ++++++++++++++++++++++++++++++++++++++----------
> >>  2 files changed, 95 insertions(+), 23 deletions(-)
> >
> > Compiles with actual u-boot the xpedite* boards, so added to
> > u-boot-i2c.git
> >
> > Thanks!
> >
> > bye,
> > Heiko
> 
> Thanks I was about to poke the mailing list to find out where things
> had got to. Did I miss something on
> http://www.denx.de/wiki/U-Boot/Patches that says look <here> list for
> a custodian and CC them?

There's a list of custodians at
http://www.denx.de/wiki/U-Boot/Custodians , but your GPIO driver doesn't
really fall neatly into any one of their areas of responsibility, so
it'd be tough to know who to CC.  I added a comment to
http://www.denx.de/wiki/U-Boot/Patches to mention that appropriate
maintainers should be CC-ed, as well as people who might be familiar
with the change based on past commits for what its worth.

Best,
Peter



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