Re: [PATCH v2 10/10] mfd: cros_ec: move EC interrupt to cros_ec_keyb
From: Simon Glass
Date: Thu Jun 19 2014 - 23:45:16 EST
On 18 June 2014 12:14, Doug Anderson <dianders@xxxxxxxxxxxx> wrote:
> From: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
>
> If we receive EC interrupts after the cros_ec driver has probed, but
> before the cros_ec_keyb driver has probed, the cros_ec IRQ handler
> will not run the cros_ec_keyb notifier and the EC will leave the IRQ
> line asserted. The cros_ec IRQ handler then returns IRQ_HANDLED and
> the resulting flood of interrupts causes the machine to hang.
>
> Since the EC interrupt is currently only used for the keyboard, move
> the setup and handling of the EC interrupt to the cros_ec_keyb driver.
>
> Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
> Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx>
Reviewed-by: Simon Glass <sjg@xxxxxxxxxxxx>
We never needed an EC-level interrupt, and have shipped at least three
products now that use this code, so I think it is safe enough to
declare that we won't need it.
Regards,
Simon
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