Re: [PATCH 3/4] pinctrl: baytrail: Rework interrupt handling

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Mon, Feb 23, 2015 at 1:53 PM, Mika Westerberg
<mika.westerberg@xxxxxxxxxxxxxxx> wrote:

> Instead of handling everything in the driver's first level interrupt
> handler, we can take advantage of already existing flow handlers that are
> provided by the IRQ core.
>
> This changes the functionality a bit also. Previously the driver looped
> over pending interrupts in a single loop, restarting the loop if some
> interrupt changed state. This caused problem with Lenovo Thinkpad 10
> digitizer that it was not able to deassert the interrupt before the driver
> disabled the interrupt for good (looplimit was exhausted).
>
> Rework the interrupt handling logic a bit so that we provide proper mask,
> ack and unmask operations in terms of Baytrail GPIO hardware and loop over
> pending interrupts only once. If the interrupt remains asserted the first
> level handler will be re-triggered automatically.
>
> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

Patch applied for fixes.

Yours,
Linus Walleij
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