Re: [PATCH V6 1/2] i2c/adapter: Add bus recovery infrastructure

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On 19 October 2012 19:03, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
> On 4 October 2012 16:34, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
>> Add i2c bus recovery infrastructure to i2c adapters as specified in the i2c
>> protocol Rev. 03 section 3.1.16 titled "Bus clear".
>>
>> http://www.nxp.com/documents/user_manual/UM10204.pdf
>>
>> Sometimes during operation i2c bus hangs and we need to give dummy clocks to
>> slave device to start the transfer again. Now we may have capability in the bus
>> controller to generate these clocks or platform may have gpio pins which can be
>> toggled to generate dummy clocks. This patch supports both.
>>
>> This patch also adds in generic bus recovery routines gpio or scl line based
>> which can be used by bus controller. In addition controller driver may provide
>> its own version of the bus recovery routine.
>>
>> This doesn't support multi-master recovery for now.
>
> Hi Wolfram,
>
> I haven't pinged you earlier as i knew merge window is around. Can you please
> share your opinion for this now?

Ping!!

--
viresh
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