Re: [PATCH 3/3] pinctrl: msm: Configure interrupts as input and gpio mode

[Doug Anderson]

Hi,

On Mon, Jun 18, 2018 at 1:52 PM, Stephen Boyd <swboyd@xxxxxxxxxxxx> wrote:
> When requesting a gpio as an interrupt, we should make sure to mux the
> pin as the GPIO function and configure it to be an input so that various
> functions or output signals don't affect the interrupt state of the pin.
> So far, we've relied on pinmux configurations in DT to handle this, but
> let's explicitly configure this in the code so that DT implementers
> don't have to get this part right.
>
> Cc: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> Cc: Doug Anderson <dianders@xxxxxxxxxxxx>
> Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
> ---
>  drivers/pinctrl/qcom/pinctrl-msm.c | 37 ++++++++++++++++++++++++++++++
>  1 file changed, 37 insertions(+)

This seems like a reasonable idea to me.  I'm not a huge fan of all
the boilerplate code copied from gpiochip_irq_reqres() and
gpiochip_irq_relres(), but it looks like that's the way it's done at
the moment.  Thus:

Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>