Re: [PATCH] tty: serial: sc16is7xx: use threaded interrupts instead of homegrow

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On 02/26/2016 08:00 PM, Josh Cartwright wrote:
> On Fri, Feb 26, 2016 at 01:26:27PM -0500, Kuba Kicinski wrote:
>> On 26 February 2016 11:52:28 GMT-05:00, Josh Cartwright <joshc@xxxxxx> wrote:
> [..]
>>> Instead, the driver needs to implement it's own oneshot-like
>>> handling at the device-level: in the registered irq handler, capture
>>> triggered interrupt state, squelch/mask, and enqueue the
>>> kthread_work.  In the tail-end of the kthread_work, re-enable
>>> interrupts at the device level.
>>
>> The problem there being IIRC that i2c doesn't provide async writes so
>> we can't mask from irq callback. The only option would be
>> disable_irq/enable_irq, right?
> 
> Ah, yes, that is a problem.  If by disable_irq(), you mean
> disable_irq_nosync(), then yes, I think that'd work.

I got lost here. Where do we stand here now?

> 
>   Josh
> 
Sebastian
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