Re: [PATCH v2] gpio:mcp23s08 Fixed missing interrupts

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Wed, Feb 22, 2017 at 4:34 PM,  <robert.middleton@xxxxxxxxxx> wrote:

> From: Robert Middleton <robert.middleton@xxxxxxxxxx>
>
> When an interrupt occurs on an MCP23S08 chip, the INTF register will only
> contain one bit as causing the interrupt.  If more than two pins change at
> the same time on the chip, this causes one of the pins to not be reported.
> This patch fixes the logic for checking if a pin has changed, so that
> multiple pins will always cause more than one change.
>
> Signed-off-by: Robert Middleton <robert.middleton@xxxxxxxxxx>

OMG that looks complicated. But good commit with proper comments,
so patch applied for fixes. I had to do some fuzzing patch -p1 < foo.patch
so please check the result.

Yours,
Linus Walleij
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