Quoting Sai Prakash Ranjan (2019-12-12 22:49:34)
> platform_get_irq() prints an error message when the interrupt
> is not available. So on platforms where bark interrupt is
> not specified, following error message is observed on SDM845.
>
> [ 2.975888] qcom_wdt 17980000.watchdog: IRQ index 0 not found
>
> This is also seen on SC7180, SM8150 SoCs as well.
> Fix this by using platform_get_irq_optional() instead.
>
> Fixes: 36375491a4395654 ("watchdog: qcom: support pre-timeout when the bark irq is available")
> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@xxxxxxxxxxxxxx>
> ---
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
