[PATCH 0/3] rtc: s35390a: Allow use of output pin for interrupt signal 1 for wakealarm

[Markus Probst]

Add a dt property to allow the use of output pin for interrupt signal 1
for wakealarm. This is needed for wakealarms to work on Synology NAS
devices.

It appears there is currently no entry in the MAINTAINERS file for the
S35390A driver. I assume the driver is currently maintained by
Alexandre Belloni.

I hope its fine I added him as maintainer for the newly added devicetree
binding, in order to keep it maintained by the same person.

Also If I am not mistaken, wake alarms on these systems are currently broken:
(not tested, judged by looking at the devicetrees).

- arch/arm/boot/dts/marvell/armada-370-synology-ds213j.dts
- arch/arm/boot/dts/marvell/armada-xp-synology-ds414.dts
- arch/arm/boot/dts/marvell/kirkwood-synology.dtsi
- arch/arm/boot/dts/marvell/kirkwood-ds110jv10.dts
- arch/arm/boot/dts/marvell/kirkwood-ds111.dts
- arch/arm/boot/dts/marvell/kirkwood-ds112.dts
- arch/arm/boot/dts/marvell/kirkwood-ds210.dts
- arch/arm/boot/dts/marvell/kirkwood-ds212.dts
- arch/arm/boot/dts/marvell/kirkwood-ds212j.dts
- arch/arm/boot/dts/marvell/kirkwood-ds411.dts
- arch/arm/boot/dts/marvell/kirkwood-ds411j.dts
- arch/arm/boot/dts/marvell/kirkwood-ds411slim.dts
- arch/arm/boot/dts/marvell/kirkwood-rs212.dts
- arch/arm/boot/dts/marvell/kirkwood-rs411.dts

If thats the case it can be fixed by using this patch series and adding
`sii,wakealarm-output-pin = <S35390A_OUTPUT_PIN_INT1>;` to the
s35390a devicetree.

If somebody still runs one of these systems, please test.

Thanks
- Markus Probst

Signed-off-by: Markus Probst <markus.probst at posteo.de>
---
Markus Probst (3):
      dt-bindings: rtc: Add sii,wakealarm-output-pin property for S35390A
      rtc: s35390a: Add missing newline to dev_err
      rtc: s35390a: make use of interrupt signal 1

 .../devicetree/bindings/rtc/sii,s35390a.yaml       | 54 +++++++++++++++++++
 .../devicetree/bindings/rtc/trivial-rtc.yaml       |  3 --
 MAINTAINERS                                        |  1 +
 drivers/rtc/rtc-s35390a.c                          | 63 +++++++++++++++++-----
 include/dt-bindings/rtc/s35390a.h                  |  9 ++++
 5 files changed, 114 insertions(+), 16 deletions(-)
---
base-commit: 728e68a889bcf257b1e67298b12c360e5c3a13e0
change-id: 20260630-rtc_s35390a_int1-556ccb308d3f