kernel/git/stable/linux.git/Documentation/devicetree/bindings/rtc, branch master

Merge tag 'rtc-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

2026-08-28T16:53:43+00:00

Pull RTC updates from Alexandre Belloni: "The RZN1 driver got a fairly comprehensive cleanup. More DT binding are converted to DT schema, leaving only 5 remaining files to convert. Subsystem: - patchwork project is moving to kernel.org - fully initialize clk_init_data - add missing MODULE_DEVICE_TABLE() - DT bindings conversions to DT schema Drivers: - ds1307: fix WADA bit for alarms on RX8130 - rzn1: add support for RZ/T2H and RZ/N2H, many fixes" * tag 'rtc-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (42 commits) MAINTAINERS: update rtc subsystem patchwork location rtc: msc313: Select by default on MSTARV7 rtc: microcrystal: Make sure clk_init_data is fully initialized rtc: philips: Make sure clk_init_data is fully initialized rtc: nct3018y: Make sure clk_init_data is fully initialized rtc: m41t80: Make sure clk_init_data is fully initialized rtc: hym8563: Make sure clk_init_data is fully initialized rtc: rzn1: Add support for Renesas RZ/T2H and RZ/N2H SoCs rtc: rzn1: Drop trailing comma from OF match table sentinel rtc: rzn1: Add OF match data to gate SUBU register access rtc: rzn1: use FIELD_PREP/FIELD_GET and GENMASK for register access rtc: rzn1: Consistently use dev_err_probe() rtc: rzn1: Use temporary variable for struct device rtc: rzn1: Dynamically calculate synchronization delay based on clock rate rtc: rzn1: Replace remove callback with devm_add_action_or_reset() rtc: rzn1: Use pm_runtime_put_sync() rtc: Kconfig: Broaden RTC_DRV_RZN1 dependency to ARCH_RENESAS rtc: rzn1: Fix malformed MODULE_AUTHOR string rtc: rzn1: Disable alarm interrupt before reprogramming alarm registers rtc: rzn1: Fix alarm range check truncation on 32-bit systems ...

dt-bindings: rtc: renesas,rzn1-rtc: Add RZ/T2H and RZ/N2H support

2026-08-23T19:23:56+00:00

Add compatible strings for the RTC block found on the Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs. These SoCs integrate a closely related variant of the RZ/N1 RTC IP. Unlike RZ/N1, they do not implement the RTCA0SUBU register. This is not a limitation for Linux support, as these registers are not used when the RTC operates in "scmp" clock mode, which is required on RZ/T2H and RZ/N2H due to their 195.3 kHz input clock. The RZ/T2H RTC variant also supports a 1Hz output signal on the RTCAT1HZ pin, controlled by the RTCA0CTL1[RTCA01HZE] bit. This bit is marked as reserved in the RZ/N1 hardware manual. Update the binding schema to require the additional clock inputs used by these SoCs. Signed-off-by: Lad Prabhakar Acked-by: Conor Dooley Reviewed-by: Wolfram Sang Link: https://patch.msgid.link/20260821211032.13554-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Alexandre Belloni

dt-bindings: rtc: Convert TI Palmas RTC to DT schema

2026-08-19T22:04:31+00:00

Convert the Texas Instruments Palmas RTC controller bindings to DT schema. As part of the conversion, declare 'wakeup-source: true'. This documents the Palmas PMIC's capability to wake the system. Signed-off-by: Eduard Bostina Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260719141008.3562347-2-egbostina@gmail.com Signed-off-by: Alexandre Belloni

dt-bindings: rtc: Convert rtc-cmos binding to YAML

2026-08-19T22:03:16+00:00

Convert the rtc-cmos devicetree bindings to dt schema. The original text binding documents only the motorola,mc146818 compatible. Existing in-tree Devicetree sources also use the intel,ce4100-rtc compatible together with the motorola,mc146818 fallback, but this was not documented. Document the Intel variant in the schema so that these existing configurations are accepted during schema validation. Signed-off-by: Teja Sai Charan Bellamkonda Reviewed-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20260709221944.159244-1-tejaasaye@gmail.com Signed-off-by: Alexandre Belloni

dt-bindings: rtc: microchip,pic32mzda-rtc: Convert to DT schema

2026-08-19T21:51:41+00:00

Convert Microchip PIC32 Real Time Clock and Calendar devicetree binding from legacy text format to DT schema. Signed-off-by: Udaya Kiran Challa Acked-by: Conor Dooley Link: https://patch.msgid.link/20260703110442.205026-1-challauday369@gmail.com Signed-off-by: Alexandre Belloni

dt-bindings: rtc: ti,omap-rtc: Convert to DT schema

2026-08-19T21:22:01+00:00

Convert the Texas Instruments OMAP Real Time Clock (RTC) binding from the legacy text format to the DT schema. Mark 'ti,hwmods' as deprecated as it is no longer used, it is kept to support legacy boards. Signed-off-by: Bhargav Joshi Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260804-ti-omap-rtc-v3-4-ba3bbd8af570@gmail.com Signed-off-by: Alexandre Belloni

dt-bindings: rtc: sun6i: add sun60i-a733 support

2026-07-06T14:40:24+00:00

Add a new rtc compatible for the sun60i-a733 SoC and new IDs for the peripheral oscillator clock gates of this SoC. Acked-by: Alexandre Belloni Acked-by: Conor Dooley Signed-off-by: Jerome Brunet Link: https://patch.msgid.link/20260706-a733-rtc-v4-2-f330728db3d3@baylibre.com Signed-off-by: Chen-Yu Tsai

dt-bindings: rtc: sun6i: no clock-output-names on h616/r329

2026-07-06T14:40:24+00:00

On h616 and r329 chips, clock output names are never defined through DT and are not meant to be. Just disallow the property for those chips. Reported-by: Sashiko Closes: http://lore.kernel.org/r/20260629125305.0DF981F000E9@smtp.kernel.org Acked-by: Alexandre Belloni Acked-by: Conor Dooley Reviewed-by: Chen-Yu Tsai Signed-off-by: Jerome Brunet Link: https://patch.msgid.link/20260706-a733-rtc-v4-1-f330728db3d3@baylibre.com Signed-off-by: Chen-Yu Tsai

dt-bindings: rtc: ds1307: Add epson,rx8901

2026-06-24T21:40:10+00:00

Add compatible string epson,rx8901 for the Epson RX8901CE RTC. Acked-by: Krzysztof Kozlowski Reviewed-by: Nobuhiro Iwamatsu Signed-off-by: Fredrik M Olsson Link: https://patch.msgid.link/20260520-ds1307-rx8901-add-v2-1-e069ea32e1db@axis.com Signed-off-by: Alexandre Belloni

dt-bindings: rtc: Add ST m41t93

2026-06-24T20:55:02+00:00

Document DT bindings for m41t93 rtc which supports time, date, alarm, watchdog, square wave clock output provider, user sram and 8 bit timer. Signed-off-by: Akhilesh Patil Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/b1b1f7abde8a4ee8b625361bca32934679bf1e1a.1758379856.git.akhilesh@ee.iitb.ac.in Signed-off-by: Alexandre Belloni