>> > >
>> > > +&i2c3 {
>> > > + pinctrl-0 = <&i2c3_sda_a_pins>, <&i2c3_sck_a_pins>;
>> > > + pinctrl-1 = <&tdm_c_din3_a_pins>;
>
> Note: without setting this *pinctrl-1* configuration RTC wake up
> feature works as expected.
As pointed out by Martin, the pinctrl-1 here makes no sense for RTC on
i2c. If the rtc is on an I2C of AO bank, the pinctrl-0 is likely to be
wrong as well.
