[PATCH 03/04] ARM: shmobile: Genmai I2C-over-GPIO support

[Magnus Damm]

Hi Laurent,

On Wed, Nov 27, 2013 at 8:15 PM, Laurent Pinchart
<laurent.pinchart at ideasonboard.com> wrote:
> Hi Magnus,
>
> Thank you for the patch.
>
> On Wednesday 27 November 2013 17:28:05 Magnus Damm wrote:
>> From: Magnus Damm <damm at opensource.se>
>>
>> Add support for the Genmai I2C bus hooked up to P1_5 and P1_4 using
>> the i2c-gpio driver. On the bus sits a 24c128 EEPRROM.
>
> Is this a temporary workaround until we get a proper I2C controller driver, or
> is the EEPROM really hooked up to pins that are not wired to a hardware I2C
> controller ?

This is a stop-gap solution until we have upstream driver support for
the I2C master hardware. The pins used for the I2C bus can be
configured in GPIO mode or a zillion other pin functions including SCL
and SDA.

Cheers,

/ magnus