[PATCH 0/3] Add RTC for MStar SSD20xD SoCs

Romain Perier
2023-05-17T14:41:54Z

This patches series adds a new driver for the RTC found in the Mstar
SSD20xD SoCs. It adds a basic rtc driver, the corresponding devicetree
bindings and its documentation.

The rtctest (from selftests) has been passed on this driver, with the
following output:

# rtctest
TAP version 13
1..8
# Starting 8 tests from 1 test cases.
# RUN rtc.date_read ...
# rtctest.c:52:date_read:Current RTC date/time is 17/05/2023 15:58:12.
# OK rtc.date_read
ok 1 rtc.date_read
# RUN rtc.date_read_loop ...
# rtctest.c:95:date_read_loop:Continuously reading RTC time for 30s (with 11ms breaks after every read).
# rtctest.c:122:date_read_loop:Performed 888 RTC time reads.
# OK rtc.date_read_loop
ok 2 rtc.date_read_loop
# RUN rtc.uie_read ...
# rtctest.c:137:uie_read:skip update IRQs not supported.
# OK rtc.uie_read
ok 3 rtc.uie_read
# RUN rtc.uie_select ...
# rtctest.c:166:uie_select:skip update IRQs not supported.
# OK rtc.uie_select
ok 4 rtc.uie_select
# RUN rtc.alarm_alm_set ...
# rtctest.c:214:alarm_alm_set:skip alarms are not supported.
# OK rtc.alarm_alm_set
ok 5 rtc.alarm_alm_set
# RUN rtc.alarm_wkalm_set ...
# rtctest.c:274:alarm_wkalm_set:skip alarms are not supported.
# OK rtc.alarm_wkalm_set
ok 6 rtc.alarm_wkalm_set
# RUN rtc.alarm_alm_set_minute ...
# rtctest.c:324:alarm_alm_set_minute:skip alarms are not supported.
# OK rtc.alarm_alm_set_minute
ok 7 rtc.alarm_alm_set_minute
# RUN rtc.alarm_wkalm_set_minute ...
# rtctest.c:384:alarm_wkalm_set_minute:skip alarms are not supported.
# OK rtc.alarm_wkalm_set_minute
ok 8 rtc.alarm_wkalm_set_minute
# PASSED: 8 / 8 tests passed.
# Totals: pass:8 fail:0 xfail:0 xpass:0 skip:0 error:0

Romain Perier (3):
rtc: Add support for the SSD20xD RTC
dt-bindings: rtc: Add Mstar SSD20xD RTC devicetree bindings
documentation
ARM: dts: mstar: Enable rtc for SSD20xD

.../bindings/rtc/mstar,ssd20xd-rtc.yaml | 37 +++
arch/arm/boot/dts/mstar-infinity2m.dtsi | 5 +
drivers/rtc/Kconfig | 11 +
drivers/rtc/Makefile | 1 +
drivers/rtc/rtc-ssd20xd.c | 249 ++++++++++++++++++
5 files changed, 303 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rtc/mstar,ssd20xd-rtc.yaml
create mode 100644 drivers/rtc/rtc-ssd20xd.c

--
2.39.2