* [GIT PULL] RTC for 7.4
@ 2026-11-01 3:28 Alexandre Belloni
0 siblings, 0 replies; only message in thread
From: Alexandre Belloni @ 2026-11-01 3:28 UTC (permalink / raw)
To: Linus Torvalds; +Cc: linux-rtc, linux-kernel
Hello Linus,
Here is the RTC subsystem pull request for 7.4. A way to lift the
hctosys limit for 32-bit system is introduced to ensure systems relying
on it can pass Y2038. A driver for the Raspberry Pi 5 RTC is added and
support for the Abracon abx81x, Ricoh R2223x, Renesas R-Car X5H and
Allwinner B288 RTCs is added in existing drivers.
I still need to review multiple sets of LLM generated fixes that have
been sent, I will probably send in a fixes PR after -rc1.
The following changes since commit cee9395acd8043be0644b25c34bfa86623f2b935:
Linux 7.3-rc1 (2026-08-30 13:34:40 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git tags/rtc-7.4
for you to fetch changes up to 7485659ecb81d5fce3a3edf2cae9fcb29c17b1cd:
rtc: rs5c372: use sysfs_emit() instead of sprintf() (2026-10-30 23:23:31 +0100)
----------------------------------------------------------------
RTC for 7.4
Subsystem:
- the hctosys limit for 32bit platforms is now configurable
- introduce lock guard for for rtc_device.ops_lock
- use sysfs_emit() instead of sprintf() were possible
- selftest fixes
New driver:
- Raspberry Pi 5 RTC
Drivers:
- abx80x: add support for ABX81X
- bd70528: properly enable wakeup
- cmos: Fix ACPI RTC alarm handling
- ds1685: power-off fixes
- mt6397: add nvmem support
- pcf85063: add HW UIE support
- rs5c372: Ricoh R2223x support
- rzn1: add R-Car X5H support
- s35390a: allow use of output pin for interrupt signal 1 for wakealarm to
support synology devices
- sun6i: add Allwinner B288 support
----------------------------------------------------------------
Akshat Rawat (1):
rtc: rv3028: use sysfs_emit() instead of sprintf()
Alexander Sverdlin (4):
rtc: pcf85063: use devm_of_clk_add_hw_provider() for clkout
rtc: pcf85063: do not clear AIE in the interrupt handler
rtc: pcf85063: preserve the alarm flag in clkout register updates
rtc: pcf85063: add 1 Hz update interrupt (UIE) support
Alexandre Belloni (33):
rtc: omap: remove unused argument
rtc: ftrtc010: fix cast
rtc: nvidia-vrs10: remove locking in IRQ handler
rtc: introduce rtc_device.ops_lock guard()
rtc: ac100: use guard
rtc: asm9260: use guard
rtc: atcrtc100: use guard
rtc: ds1305: use guard
rtc: ds1307: use guard
rtc: ds1343: use guard
rtc: ds1685: use guard
rtc: ds3232: use guard
rtc: hym8563: use guard
rtc: m41t80: use guard
rtc: mcp795: use guard
rtc: nct6694: use guard
rtc: pcf2123: use guard
rtc: rv3029c2: use guard
rtc: rx8010: use guard
rtc: rx8025: use guard
rtc: stm32: use guard
rtc: abx80x: simplify locking
rtc: rv3029: use sysfs_emit() instead of sprintf()
rtc: pcf2127: use sysfs_emit() instead of sprintf()
rtc: ep93xx: use sysfs_emit() instead of sprintf()
rtc: bq32k: use sysfs_emit() instead of sprintf()
rtc: x1205: use sysfs_emit() instead of sprintf()
rtc: rx8025: use sysfs_emit() instead of sprintf()
rtc: ds1343: use sysfs_emit() instead of sprintf()
rtc: ds1685: use sysfs_emit() instead of sprintf()
rtc: isl1208: use sysfs_emit() instead of sprintf()
rtc: ds1307: use sysfs_emit() instead of sprintf()
rtc: rs5c372: use sysfs_emit() instead of sprintf()
Andreas Kemnade (1):
rtc: bd70528: properly enable wakeup
Antoni Pokusinski (9):
dt-bindings: rtc: abx80x: document ABX81X RTCs
rtc: abx80x: fix error check after i2c_smbus_read in read_alarm()
rtc: abx80x: add mutex protection for register writes
rtc: abx80x: properly handle shared IRQs
rtc: abx80x: add irq to struct abx80x_priv
rtc: abx80x: use regmap instead of I2C specific API
rtc: abx80x: replace read-modify-write pattern with regmap helpers
rtc: abx80x: create abx80x_i2c_probe()
rtc: abx80x: add support for ABX81X
Baek Kyu, Kim (1):
rtc: mpfs: Fix alarm register word order
Eric Liu (1):
rtc: nct3018y: report chassis intrusion through hwmon
Gregory Price (2):
rtc: cmos: Disable ACPI RTC event before handling it
rtc: cmos: Honor explicit use_acpi_alarm parameter value
Guoming Chen (1):
rtc: ds1307: drop redundant dev_set_drvdata() in probe
Heiko Schocher (3):
dt-bindings: rtc: add ricoh,r2223x binding
rtc: rs5c372: add support for Ricoh R2223x
rtc: rs5c372: support eco mode on R2223x
Igor Velkov (1):
rtc: pcf8563: pass the driver data to the alarm interrupt handler
Imre Kaloz (3):
rtc: ds1685: arm the wake-up alarm at power-off only if an alarm is set
rtc: ds1685: do not sleep in the power-off handler
rtc: ds1685: keep setting PAB until power is removed
Karl Mehltretter (1):
rtc: class: Make the time32 hctosys limit configurable
Liu Dalin (3):
rtc: ftrtc010: fix clock resource leak on probe failure
rtc: ftrtc010: use devm clock APIs to fix use-after-disable in remove
rtc: ftrtc010: fix integer overflow in time calculation
Ma Ke (1):
platform/x86/amd/pmc: Fix RTC reference leak in amd_pmc_verify_czn_rtc()
Markus Probst (6):
dt-bindings: rtc: Add pinctrl for S35390A
rtc: s35390a: Add missing newline to dev_err
rtc: s35390a: Fix alarm not disabling
rtc: s35390a: Read 24-hour mode on access
rtc: s35390a: Add pinctrl
rtc: s35390a: Add synology quirk
Michael Walle (1):
rtc: pcf8563: add SMBus support
Pablo Mazzini (3):
rtc: sun6i: fix error handling in sun6i_rtc_clk_init()
dt-bindings: rtc: sun6i-a31: add Allwinner B288
rtc: sun6i: add Allwinner B288 compatible
Ryan Brue (2):
dt-bindings: mfd: mediatek: mt6397: describe the RTC's nvmem layout
rtc: mt6397: expose the spare bytes of the alarm registers as nvmem
Sander Speetjens (3):
dt-bindings: rtc: Add missing type to trickle-voltage-millivolt
dt-bindings: rtc: Add property for Raspberry Pi 5 RTC
rtc: Add Raspberry Pi 5 RTC driver
Wake Liu (1):
selftests: rtc: fix flaky date_read_loop test
Wolfram Sang (8):
dt-bindings: rtc: rzn1: drop unneeded 'start-year' from example
dt-bindings: rtc: rzn1: add SoC names next to their IDs
dt-bindings: rtc: rzn1: add R-Car X5H support
rtc: rzn1: add R-Car X5H support
dt-bindings: rtc: rzn1: add resets property
selftest: rtc: rtctest: don't mention skipping twice
selftest: rtc: rtctest: make missing UIEs really skip
selftest: rtc: rtctest: skip properly if setting alarm fails
.../arm/bcm/raspberrypi,bcm2835-firmware.yaml | 6 +
.../devicetree/bindings/mfd/mediatek,mt6397.yaml | 9 +
.../devicetree/bindings/rtc/abracon,abx80x.yaml | 18 +-
.../bindings/rtc/allwinner,sun6i-a31-rtc.yaml | 3 +
.../devicetree/bindings/rtc/renesas,rzn1-rtc.yaml | 37 +-
.../devicetree/bindings/rtc/ricoh,r2223x.yaml | 58 ++
Documentation/devicetree/bindings/rtc/rtc.yaml | 1 +
.../devicetree/bindings/rtc/sii,s35390a.yaml | 118 +++
.../devicetree/bindings/rtc/trivial-rtc.yaml | 2 -
drivers/firmware/raspberrypi.c | 24 +
drivers/platform/x86/amd/pmc/pmc.c | 5 +-
drivers/rtc/Kconfig | 60 +-
drivers/rtc/Makefile | 1 +
drivers/rtc/class.c | 8 +-
drivers/rtc/rtc-abx80x.c | 821 +++++++++++++--------
drivers/rtc/rtc-ac100.c | 10 +-
drivers/rtc/rtc-asm9260.c | 4 +-
drivers/rtc/rtc-atcrtc100.c | 3 +-
drivers/rtc/rtc-bd70528.c | 5 +
drivers/rtc/rtc-bq32k.c | 2 +-
drivers/rtc/rtc-cmos.c | 32 +-
drivers/rtc/rtc-ds1305.c | 4 +-
drivers/rtc/rtc-ds1307.c | 16 +-
drivers/rtc/rtc-ds1343.c | 12 +-
drivers/rtc/rtc-ds1685.c | 53 +-
drivers/rtc/rtc-ds3232.c | 50 +-
drivers/rtc/rtc-ep93xx.c | 4 +-
drivers/rtc/rtc-ftrtc010.c | 73 +-
drivers/rtc/rtc-hym8563.c | 6 +-
drivers/rtc/rtc-isl1208.c | 10 +-
drivers/rtc/rtc-m41t80.c | 12 +-
drivers/rtc/rtc-mcp795.c | 3 +-
drivers/rtc/rtc-mpfs.c | 4 +-
drivers/rtc/rtc-mt6397.c | 91 ++-
drivers/rtc/rtc-nct3018y.c | 94 +++
drivers/rtc/rtc-nct6694.c | 8 +-
drivers/rtc/rtc-nvidia-vrs10.c | 5 +-
drivers/rtc/rtc-omap.c | 5 +-
drivers/rtc/rtc-pcf2123.c | 5 +-
drivers/rtc/rtc-pcf2127.c | 2 +-
drivers/rtc/rtc-pcf85063.c | 141 +++-
drivers/rtc/rtc-pcf8563.c | 5 +-
drivers/rtc/rtc-raspberrypi.c | 278 +++++++
drivers/rtc/rtc-rs5c372.c | 56 +-
drivers/rtc/rtc-rv3028.c | 6 +-
drivers/rtc/rtc-rv3029c2.c | 9 +-
drivers/rtc/rtc-rx8010.c | 4 +-
drivers/rtc/rtc-rx8025.c | 12 +-
drivers/rtc/rtc-rzn1.c | 52 +-
drivers/rtc/rtc-s35390a.c | 483 +++++++++---
drivers/rtc/rtc-stm32.c | 4 +-
drivers/rtc/rtc-sun6i.c | 23 +-
drivers/rtc/rtc-x1205.c | 4 +-
drivers/soc/ti/pm33xx.c | 2 +-
include/linux/mfd/mt6397/rtc.h | 7 +
include/linux/rtc.h | 5 +
include/linux/rtc/rtc-omap.h | 2 +-
include/soc/bcm2835/raspberrypi-firmware.h | 2 +
tools/testing/selftests/rtc/rtctest.c | 60 +-
59 files changed, 2100 insertions(+), 739 deletions(-)
create mode 100644 Documentation/devicetree/bindings/rtc/ricoh,r2223x.yaml
create mode 100644 Documentation/devicetree/bindings/rtc/sii,s35390a.yaml
create mode 100644 drivers/rtc/rtc-raspberrypi.c
--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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