Re: [PATCH 0/5] Add support for MSCC Ocelot i2c

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Tue, 2018-07-17 at 13:48 +0200, Alexandre Belloni wrote:
> Hi,
> 
> Because the designware IP was not able to the the SDA hold time, MSCC
> has
> its own implementation. Add support for it and then add i2c on ocelot
> boards.
> 
> I would expect patches 1 to 3 to go through the i2c tree and 4-5
> through
> the mips tree once patch 3 has been reviewed by the DT maintainers.

Without reading datasheet it all feels like a wrong place to put.

But maybe that SoC (SoC family?) has some update to DesignWare IP.
Btw, what the version of DW IP it's using? 2.00a? More older, more
recent?


> Alexandre Belloni (5):
>   i2c: designware: factorize setting SDA hold time
>   i2c: designware: allow IP specific sda_hold_time
>   i2c: designware: add MSCC Ocelot support
>   mips: dts: mscc: Add i2c on ocelot
>   mips: dts: mscc: enable i2c on ocelot_pcb123
> 
>  .../bindings/i2c/i2c-designware.txt           |  5 ++-
>  arch/mips/boot/dts/mscc/ocelot.dtsi           | 19 +++++++++++
>  arch/mips/boot/dts/mscc/ocelot_pcb123.dts     |  5 +++
>  drivers/i2c/busses/i2c-designware-common.c    | 33
> +++++++++++++++++++
>  drivers/i2c/busses/i2c-designware-core.h      |  3 ++
>  drivers/i2c/busses/i2c-designware-master.c    | 22 +------------
>  drivers/i2c/busses/i2c-designware-platdrv.c   | 20 +++++++++++
>  drivers/i2c/busses/i2c-designware-slave.c     | 22 +------------
>  8 files changed, 86 insertions(+), 43 deletions(-)
> 

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy