Missing driver for rtc-rv3032

[Gadgetoid]

Describe the bug

Missing support in i2c-rtc.dtbo for the rv3032 RTC.

Steps to reproduce the behaviour

Add:

dtoverlay=i2c-rtc,rv3032

To /boot/config.txt

Device (s)

Raspberry Pi 4 Mod. B

System

cat /etc/rpi-issue 
Raspberry Pi reference 2022-04-04
Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, 226b479f8d32919c9fe36dd5b4c20c02682f8180, stage4

vcgencmd version
Aug 26 2022 14:03:16 
Copyright (c) 2012 Broadcom
version 102f1e848393c2112206fadffaaf86db04e98326 (clean) (release) (start)

uname -a
Linux inkypi 5.15.61-v7l+ #1579 SMP Fri Aug 26 11:13:03 BST 2022 armv7l GNU/Linux

Logs

No response

Additional context

A working module for rtc-rv3032 exists. I have built it with DKMS and modified the dtbo accordingly. Setting and getting time via hwclock is successful.

I believe this needs adding to i2c-rtc-common.dtsi:

        fragment@21 {
                target = <&i2cbus>;
                __dormant__ {
                        #address-cells = <1>;
                        #size-cells = <0>;

                        rv3032: rv3032@51 {
                                compatible = "microcrystal,rv3032";
                                reg = <0x51>;
                        };
                };
        };

Plus the rtc-rv3032 module added to the build.

If you need/want a sample RTC board, let me know!

[pelwell]

That should be done now - see d8eacff and f0f6d95.

Thanks for the offer, but I don't think I need more RTC modules - things in the RTC world rarely change.

[Gadgetoid]

things in the RTC world rarely change

They are.. indeed... not exciting. 😆

Thank you very much!

Shout if you need anything.