Re: [RFC PATCH] i2c: busses: i2c-omap: Increase timeout for i2c interrupt

[Vignesh R]

Hi,

On 07/10/2015 06:56 PM, Alexander Sverdlin wrote:
> Hi!
> 
> On 10/07/15 15:17, ext Vignesh R wrote:
>>>> I would propose you to throw away spinlocks. Convert threaded IRQ to
>>>>>> just one hardirq handler. And continue debugging. You will reduce the
>>>>>> load of the system with the above measures, maybe it will not happen
>>>>>> any more, maybe you'll figure out that problem is somewhere else.
>>>>
>>>> Or this.
>> I am not convinced with moving entire code at hardirq context. I believe
>> its better to keep hardirq as small as possible.
> 
> How deep is the controller's FIFO? 1 byte? 2 bytes? 

As per AM57x TRM[1] section 24.1.4.8 max FIFO depth can be 64bytes.

[1] http://www.ti.com/lit/ug/spruhz6/spruhz6.pdf
-- 
Regards
Vignesh
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