summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/rtc
AgeCommit message (Collapse)Author
12 daysMerge tag 'rtc-7.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux 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 ...
2026-08-23dt-bindings: rtc: renesas,rzn1-rtc: Add RZ/T2H and RZ/N2H supportLad Prabhakar
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 <prabhakar.mahadev-lad.rj@bp.renesas.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://patch.msgid.link/20260821211032.13554-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-08-20dt-bindings: rtc: Convert TI Palmas RTC to DT schemaEduard Bostina
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 <egbostina@gmail.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260719141008.3562347-2-egbostina@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-08-20dt-bindings: rtc: Convert rtc-cmos binding to YAMLTeja Sai Charan Bellamkonda
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 <tejaasaye@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://patch.msgid.link/20260709221944.159244-1-tejaasaye@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-08-19dt-bindings: rtc: microchip,pic32mzda-rtc: Convert to DT schemaUdaya Kiran Challa
Convert Microchip PIC32 Real Time Clock and Calendar devicetree binding from legacy text format to DT schema. Signed-off-by: Udaya Kiran Challa <challauday369@gmail.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20260703110442.205026-1-challauday369@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-08-19dt-bindings: rtc: ti,omap-rtc: Convert to DT schemaBhargav Joshi
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 <j.bhargav.u@gmail.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260804-ti-omap-rtc-v3-4-ba3bbd8af570@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-07-06dt-bindings: rtc: sun6i: add sun60i-a733 supportJerome Brunet
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 <alexandre.belloni@bootlin.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://patch.msgid.link/20260706-a733-rtc-v4-2-f330728db3d3@baylibre.com Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2026-07-06dt-bindings: rtc: sun6i: no clock-output-names on h616/r329Jerome Brunet
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 <sashiko-bot@kernel.org> Closes: http://lore.kernel.org/r/20260629125305.0DF981F000E9@smtp.kernel.org Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Chen-Yu Tsai <wens@kernel.org> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://patch.msgid.link/20260706-a733-rtc-v4-1-f330728db3d3@baylibre.com Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2026-06-24dt-bindings: rtc: ds1307: Add epson,rx8901Fredrik M Olsson
Add compatible string epson,rx8901 for the Epson RX8901CE RTC. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@mail.toshiba> Signed-off-by: Fredrik M Olsson <fredrik.m.olsson@axis.com> Link: https://patch.msgid.link/20260520-ds1307-rx8901-add-v2-1-e069ea32e1db@axis.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-06-24dt-bindings: rtc: Add ST m41t93Akhilesh Patil
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 <akhilesh@ee.iitb.ac.in> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/b1b1f7abde8a4ee8b625361bca32934679bf1e1a.1758379856.git.akhilesh@ee.iitb.ac.in Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-06-23dt-bindings: rtc: add ASPEED AST2700 compatibleTommy Huang
Document the compatible string for the RTC controller found on ASPEED AST2700 SoCs. Signed-off-by: Tommy Huang <tommy_huang@aspeedtech.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20260601-ast2700-rtc-v1-1-15d4ca46500a@aspeedtech.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-06-22dt-bindings: rtc: epson,rx6110: Convert to DT SchemaUdaya Kiran Challa
Convert the Epson RX6110 Real Time Clock devicetree binding from the legacy text format to DT schema. Signed-off-by: Udaya Kiran Challa <challauday369@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://patch.msgid.link/20260514173851.25088-1-challauday369@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-04-03dt-bindings: rtc: add olpc,xo1-rtc to trivial-rtcAnushka Badhe
Add the OLPC XO-1 RTC compatible string to the trivial-rtc schema instead of creating a standalone binding file, as it only requires a compatible property with no additional configuration. Signed-off-by: Anushka Badhe <anushkabadhe@gmail.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20260325093003.44051-1-anushkabadhe@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-04-03dt-bindings: rtc: sc2731: Add compatible for SC2730Otto Pflüger
The RTC block found in the SC2730 PMIC is compatible with the one found in the SC2731 PMIC. Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Otto Pflüger <otto.pflueger@abscue.de> Link: https://patch.msgid.link/20260329-sc27xx-mfd-cells-v3-1-9158dee41f74@abscue.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-03-13dt-bindings: rtc: isl12026: convert to YAML schemaPiyush Patle
Convert the ISL12026 RTC binding from text format to YAML schema. Remove the legacy text binding. The new schema enables dtbs_check validation. Signed-off-by: Piyush Patle <piyushpatle228@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://patch.msgid.link/20260227185115.174997-1-piyushpatle228@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-03-13dt-bindings: rtc: microcrystal,rv3028: Allow to specify vdd-supplyFrieder Schrempf
In case the VDD supply voltage regulator of the RTC needs to be specified explicitly, allow to set vdd-supply. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://patch.msgid.link/20260309085749.25747-2-frieder@fris.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-03-12dt-bindings: rtc: mpfs-rtc: permit resetsConor Dooley
The RTC on mpfs and pic64gx has a reset pin, but until now this has been undocumented because platform firmware takes the RTC out of reset on first-party boards (or those using modified versions of the vendor firmware), but not all boards may take this approach. Permit providing a reset in devicetree for Linux, or other devicetree-consuming software, to use. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://patch.msgid.link/20260303-flounder-slate-dd69766990ce@spud Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-02-22Merge tag 'rtc-7.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: - loongson: Loongson-2K0300 support - s35390a: nvmem support - zynqmp: rework calibration * tag 'rtc-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: rtc: ds1390: fix number of bytes read from RTC rtc: class: Remove duplicate check for alarm rtc: optee: simplify OP-TEE context match rtc: interface: Alarm race handling should not discard preceding error rtc: s35390a: implement nvmem support rtc: loongson: Add Loongson-2K0300 support dt-bindings: rtc: loongson: Document Loongson-2K0300 compatible dt-bindings: rtc: loongson: Correct Loongson-1C interrupts property dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2N support dt-bindings: rtc: cpcap: convert to schema rtc: zynqmp: use dynamic max and min offset ranges rtc: zynqmp: rework set_offset rtc: zynqmp: rework read_offset rtc: zynqmp: check calibration max value rtc: zynqmp: correct frequency value rtc: amlogic-a4: Remove IRQF_ONESHOT rtc: pcf8563: use correct of_node for output clock rtc: max31335: use correct CONFIG symbol in IS_REACHABLE() rtc: nvvrs: Add ARCH_TEGRA to the NV VRS RTC driver
2026-01-31dt-bindings: rtc: loongson: Document Loongson-2K0300 compatibleBinbin Zhou
Add "loongson,ls2k0300-rtc" dedicated compatible to represent the RTC interface of the Loongson-2K0300 chip. Its hardware design is similar to that of the Loongson-1B, but it does not support the alarm feature. Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/0c6a4fd221b5bf05f06cae9bb543a5bf7ea59f57.1768616276.git.zhoubinbin@loongson.cn Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-01-31dt-bindings: rtc: loongson: Correct Loongson-1C interrupts propertyBinbin Zhou
The `interrupts` property indicates an RTC alarm interrupt, which is required for RTCs that support the alarm feature, which is not supported by the Loongson-1C RTC. We exclude it for a more accurate description. Changing the `allowed` property is ABI-breaking behavior, but throughout the existing Loongson DTS{i}, the description of the RTC nodes conforms to the modified bingding rules. Thus, the existing Loongson DTS{i} will not be affected. Fixes: 487ef32caebe ("dt-bindings: rtc: Split loongson,ls2x-rtc into SoC-based compatibles") Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/b6295c907410f6708115cba4df0959ee6629f8a5.1768616276.git.zhoubinbin@loongson.cn Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-01-31dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2N supportOvidiu Panait
The Renesas RZ/V2N (r9a09g056) RTC is identical to the RZ/V2H (r9a09g057) variant. Add the compatible string for RZ/V2N and extend the existing RZ/V2H reset configuration to cover both variants. Signed-off-by: Ovidiu Panait <ovidiu.panait.rb@renesas.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patch.msgid.link/20260125192706.27099-4-ovidiu.panait.rb@renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-01-29dt-bindings: rtc: cpcap: convert to schemaSvyatoslav Ryhel
Convert RTC devicetree bindings for the Motorola CPCAP MFD from TXT to YAML format. This patch does not change any functionality; the bindings remain the same. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Link: https://patch.msgid.link/20260125134302.45958-7-clamor95@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-12-16dt-bindings: Updates Linus Walleij's mail addressLinus Walleij
My name is stamped into maintainership for a big slew of DT bindings. Now that it is changing, switch it over to my kernel.org mail address, which will hopefully be stable for the rest of my life. Signed-off-by: Linus Walleij <linusw@kernel.org> Link: https://patch.msgid.link/20251216-maintainers-dt-v1-1-0b5ab102c9bb@kernel.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-12-08dt-bindings: rtc: Add Apple SMC RTCSven Peter
Apple Silicon Macs (M1, etc.) have an RTC that is part of the PMU IC, but most of the PMU functionality is abstracted out by the SMC. An additional RTC offset stored inside NVMEM is required to compute the current date/time. Reviewed-by: Mark Kettenis <kettenis@openbsd.org> Reviewed-by: Neal Gompa <neal@gompa.dev> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Sven Peter <sven@kernel.org> Signed-off-by: James Calligeros <jcalligeros99@gmail.com> Reviewd-by: Mark Kettenis <kettenis@openbsd.org> Link: https://patch.msgid.link/20251112-macsmc-subdevs-v5-1-728e4b91fe81@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-12-08dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2H supportOvidiu Panait
The Renesas RZ/V2H RTC IP is based on the same RTCA3 IP as RZ/G3S (r9a08g045), with the following differences: - It lacks the time capture functionality - The maximum supported periodic interrupt frequency is 128Hz instead of 256Hz - It requires two reset lines instead of one Add new compatible string "renesas,r9a09g057-rtca3" for RZ/V2H and update the binding accordingly: - Allow "resets" to contain one or two entries depending on the SoC. - Add "reset-names" property, but make it required only for RZ/V2H. Signed-off-by: Ovidiu Panait <ovidiu.panait.rb@renesas.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20251107210706.45044-2-ovidiu.panait.rb@renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-11-06dt-bindings: rtc: Document NVIDIA VRS RTCShubhi Garg
Add device tree bindings for NVIDIA VRS (Voltage Regulator Specification) RTC device. NVIDIA VRS is a Power Management IC (PMIC) that implements a power sequencing solution with I2C interface. The device includes RTC which provides functionality to get/set system time, retain system time across boot, wake system from suspend and shutdown state. Supported platforms: - NVIDIA Jetson AGX Orin Developer Kit - NVIDIA IGX Orin Development Kit - NVIDIA Jetson Orin NX Developer Kit - NVIDIA Jetson Orin Nano Developer Kit Signed-off-by: Shubhi Garg <shgarg@nvidia.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Link: https://patch.msgid.link/20251007135738.487694-2-shgarg@nvidia.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-11-06dt-bindings: rtc: Add support for ATCRTC100 RTCCL Wang
Document Device Tree bindings for the Andes ATCRTC100 Real-Time Clock. Signed-off-by: CL Wang <cl634@andestech.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20250915031439.2680364-2-cl634@andestech.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-10-05dt-bindings: rtc: Convert apm,xgene-rtc to DT schemaRob Herring (Arm)
Convert the APM XGene RTC binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250924222848.2949235-1-robh@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-09-16dt-bindings: rtc: Fix Xicor X1205 vendor prefixRob Herring (Arm)
The vendor for the Xircom X1205 RTC is not Xircom, but Xicor which was acquired by Intersil. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250821215703.869628-1-robh@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-09-16dt-bindings: rtc: Drop isil,isl12057.txtRob Herring (Arm)
The "isil,isl12057" compatible is already supported by rtc-ds1307.yaml, so remove the old text binding. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20250807214414.4172910-1-robh@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-09-16dt-bindings: rtc: s3c: Drop S3C2410Krzysztof Kozlowski
Samsung S3C24xx family of SoCs was removed the Linux kernel in the commit 61b7f8920b17 ("ARM: s3c: remove all s3c24xx support"), in January 2023. There are no in-kernel users of remaining S3C24xx compatibles. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250830130024.142815-6-krzysztof.kozlowski@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-09-16dt-bindings: rtc: trivial-rtc: add dallas,m41t00Frank Li
Add compatible string dallas,m41t00 for dallas m41t00 RTC. Signed-off-by: Frank Li <Frank.Li@nxp.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250827193356.78368-1-Frank.Li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-09-16dt-bindings: rtc: pcf85063: remove quartz-load-femtofarads restriction for ↵Frank Li
nxp,pcf85063 Original TXT binding doc have not limitition about quartz-load-femtofarads, which only allow 7000 for nxp,pcf85063. So remove it to fix below CHECK_DTBS warnings: arch/arm/boot/dts/nxp/imx/imx6dl-skov-revc-lt2.dtb: rtc@51 (nxp,pcf85063): quartz-load-femtofarads:0: 7000 was expected from schema $id: http://devicetree.org/schemas/rtc/nxp,pcf85063.yaml# Signed-off-by: Frank Li <Frank.Li@nxp.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250903191128.439164-1-Frank.Li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-08-03Merge tag 'rtc-6.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Support for a new RTC in an existing driver and all the drivers exposing clocks using the common clock framework have been converted to determine_rate(). Summary: Subsystem: - Convert drivers exposing a clock from round_rate() to determine_rate() Drivers: - ds1307: oscillator stop flag handling for ds1341 - pcf85063: add support for RV8063" * tag 'rtc-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (34 commits) rtc: ds1685: Update Joshua Kinard's email address. rtc: rv3032: convert from round_rate() to determine_rate() rtc: rv3028: convert from round_rate() to determine_rate() rtc: pcf8563: convert from round_rate() to determine_rate() rtc: pcf85063: convert from round_rate() to determine_rate() rtc: nct3018y: convert from round_rate() to determine_rate() rtc: max31335: convert from round_rate() to determine_rate() rtc: m41t80: convert from round_rate() to determine_rate() rtc: hym8563: convert from round_rate() to determine_rate() rtc: ds1307: convert from round_rate() to determine_rate() rtc: rv3028: fix incorrect maximum clock rate handling rtc: pcf8563: fix incorrect maximum clock rate handling rtc: pcf85063: fix incorrect maximum clock rate handling rtc: nct3018y: fix incorrect maximum clock rate handling rtc: hym8563: fix incorrect maximum clock rate handling rtc: ds1307: fix incorrect maximum clock rate handling rtc: pcf85063: scope pcf85063_config structures rtc: Optimize calculations in rtc_time64_to_tm() dt-bindings: rtc: amlogic,a4-rtc: Add compatible string for C3 rtc: ds1307: handle oscillator stop flag (OSF) for ds1341 ...
2025-07-29Merge tag 'soc-dt-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds
Pull SoC devicetree updates from Arnd Bergmann: "There are a few new variants of existing chips: - mt6572 is an older mobile phone chip from mediatek that was extremely popular a decade ago but never got upstreamed until now - exynos2200 is a recent high-end mobile phone chip used in a few Samsung phones like the Galaxy S22 - Renesas R-Car V4M-7 (R8A779H2) is an updated version of R-Car V4M (R8A779H0) and used in automotive applications - Tegra264 is a new chip from NVIDIA, but support is fairly minimal for now, and not much information is public about it There are five more chips in a separate branch, as those are new chip families that I merged along with the necessary infrastructure. New board support is not that exciting, with a total of 33 newly added machines here: - Evaluation platforms for the chips above, plus TI am62d2 and Sophgo sg2042 - Six 32-bit industrial boards based on stm32, imx6 and am33 chips, plus eight 64-bit rockchips rk33xx/rk35xx, am62d2, t527, imx8 and imx95 - Two newly added ASPEED BMC based motherboards, and one that got removed - Phones and Tablets based on 32-bit mt6572, tegra30 and 64-bit msm8976 SoCs - Three Laptops based on Mediatek mt8186 and Qualcomm Snapdragon X1 - A set-top box based on Amlogic meson-gxm Updates for existing machines are spread over all the above families. One notable change here is support for the RP1 I/O chip used in Raspberry Pi 5" * tag 'soc-dt-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (606 commits) riscv: dts: sophgo: fix mdio node name for CV180X riscv: dts: sophgo: sophgo-srd3-10: reserve uart0 device riscv: dts: sophgo: add Sophgo SG2042_EVB_V2.0 board device tree riscv: dts: sophgo: add Sophgo SG2042_EVB_V1.X board device tree dt-bindings: riscv: add Sophgo SG2042_EVB_V1.X/V2.0 bindings riscv: dts: sophgo: add ethernet GMAC device for sg2042 riscv: dts: sophgo: Enable ethernet device for Huashan Pi riscv: dts: sophgo: Add mdio multiplexer device for cv18xx riscv: dts: sophgo: Add ethernet device for cv18xx riscv: dts: sophgo: sg2044: add pmu configuration riscv: dts: sophgo: sg2044: add ziccrse extension riscv: dts: sophgo: add zfh for sg2042 riscv: dts: sophgo: add ziccrse for sg2042 riscv: dts: sophgo: Add xtheadvector to the sg2042 devicetree riscv: dts: sophgo: sg2044: add PCIe device support for SG2044 riscv: dts: sophgo: sg2044: add MSI device support for SG2044 riscv: dts: sophgo: add reset configuration for Sophgo CV1800 series SoC riscv: dts: sophgo: add reset generator for Sophgo CV1800 series SoC dt-bindings: soc: sophgo: Move SoCs/boards from riscv into soc, add SG2000 riscv: dts: sophgo: sg2044: Add missing riscv,cbop-block-size property ...
2025-07-28dt-bindings: Correct indentation and style in DTS exampleKrzysztof Kozlowski
DTS example in the bindings should be indented with 2- or 4-spaces and aligned with opening '- |', so correct any differences like 3-spaces or mixtures 2- and 4-spaces in one binding. No functional changes here, but saves some comments during reviews of new patches built on existing code. Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC Acked-by: Lee Jones <lee@kernel.org> Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> # renesas Link: https://lore.kernel.org/r/20250107131456.247610-1-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250725100241.120106-2-krzysztof.kozlowski@linaro.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-07-23dt-bindings: rtc: amlogic,a4-rtc: Add compatible string for C3Xianwei Zhao
Amlogic C3 SoCs uses the same rtc controller as A5 SoCs. There is no need for an extra compatible line in the driver, but add C3 compatible line for documentation. Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250717-rtc-c3-node-v1-1-4f9ae059b8e6@amlogic.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-07-23dt-bindings: rtc: pcf85063: add binding for RV8063Antoni Pokusinski
Microcrystal RV8063 is a real-time clock module with SPI interface. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Antoni Pokusinski <apokusinski01@gmail.com> Link: https://lore.kernel.org/r/20250413130755.159373-2-apokusinski01@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-07-11dt-bindings: rtc: tegra: Document Tegra264 RTCThierry Reding
Add the compatible string for the RTC block found on the Tegra264 SoC. Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250507143802.1230919-3-thierry.reding@gmail.com Signed-off-by: Thierry Reding <treding@nvidia.com>
2025-07-07dt-bindings: rtc: nxp,lpc1788-rtc: add compatible string nxp,lpc1850-rtcFrank Li
Add compatible string nxp,lpc1850-rtc and fallback to nxp,lpc1788-rtc. Fix below CHECK_DTB warning: arch/arm/boot/dts/nxp/lpc/lpc4337-ciaa.dtb: rtc@40046000 (nxp,lpc1850-rtc): compatible: ['nxp,lpc1850-rtc', 'nxp,lpc1788-rtc'] is too long Signed-off-by: Frank Li <Frank.Li@nxp.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250602142842.942700-1-Frank.Li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-07-07dt-bindings: rtc: move nxp,lpc3220-rtc to separated file from trivial-rtc.yamlFrank Li
nxp,lpc3220-rtc have clocks property, so move it from trivial-rtc.yaml. Signed-off-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250624201733.2515971-1-Frank.Li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-07-07dt-bindings: Move sophgo,cv1800b-rtc to rtc directoryRob Herring (Arm)
The $id path for the sophgo,cv1800b-rtc binding was missing part of the path 'soc'. However, the correct place for RTC bindings (even if it's also a "syscon") is the rtc directory, so move the binding there while fixing the $id value. Fixes: 76517429dbfd ("dt-bindings: soc: sophgo: add RTC support for Sophgo CV1800 series") Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250608224252.3902421-1-robh@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-01dt-bindings: rtc: rzn1: add optional second clockWolfram Sang
The external crystal can be a second clock input. It is needed for the SCMP counting method which allows using crystals different than 32768Hz. It is also needed for an upcoming SoC which only supports the SCMP method. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20250526095801.35781-6-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-05-25dt-bindings: rtc: add schema for NXP S32G2/S32G3 SoCsCiprian Marian Costea
RTC tracks clock time during system suspend and it is used as a wakeup source on S32G2/S32G3 architecture. RTC from S32G2/S32G3 is not battery-powered and it is not kept alive during system reset. Co-developed-by: Bogdan-Gabriel Roman <bogdan-gabriel.roman@nxp.com> Signed-off-by: Bogdan-Gabriel Roman <bogdan-gabriel.roman@nxp.com> Co-developed-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com> Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com> Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250403103346.3064895-2-ciprianmarian.costea@oss.nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-05-25dt-bindings: at91rm9260-rtt: add microchip,sama7d65-rttRyan Wanner
Add SAMA7D65 RTT compatible to DT bindings documentation. Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/183474a65377f4030360166a5f2659af7323e82b.1744666011.git.Ryan.Wanner@microchip.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-05-25dt-bindings: rtc: at91rm9200: add microchip,sama7d65-rtcRyan Wanner
Add SAMA7D65 RTC compatible to DT bindings documentation. Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/a274485331628be0bcf382b1ba489d4555fa49c8.1744666011.git.Ryan.Wanner@microchip.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-05-24dt-bindings: rtc: qcom-pm8xxx: add uefi-variable offsetJohan Hovold
On many Qualcomm platforms the PMIC RTC control and time registers are read-only so that the RTC time can not be updated. Instead an offset needs be stored in some machine-specific non-volatile memory, which a driver can take into account. On platforms where the offset is stored in a Qualcomm specific UEFI variable the variables are also accessed in a non-standard way, which means that the OS cannot assume that the variable service is available by the time the RTC driver probes. Add a 'qcom,uefi-rtc-info' boolean flag to indicate that the RTC offset is stored in a Qualcomm specific UEFI variable so that the OS can determine whether to wait for it to become available. The UEFI variable is 882f8c2b-9646-435f-8de5-f208ff80c1bd-RTCInfo and holds a 12-byte structure where the first four bytes is a GPS time offset in little-endian byte order. Link: https://lore.kernel.org/all/aAecIkgmTTlThKEZ@hovoldconsulting.com/ Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250423075143.11157-2-johan+linaro@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-04-01dt-bindings: rtc: max31335: Add max31331 supportPavithraUdayakumar-adi
Added DT compatible string for MAX31331. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: PavithraUdayakumar-adi <pavithra.u@analog.com> Link: https://lore.kernel.org/r/20250217-add_support_max31331_fix_8-v1-1-16ebcfc02336@analog.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17dt-bindings: rtc: pcf2127: Reference spi-peripheral-props.yamlFabio Estevam
PCF2127 is an SPI device, thus its binding should reference spi-peripheral-props.yaml. Add a reference to spi-peripheral-props.yaml to fix the following dt-schema warning: imx7d-flex-concentrator.dtb: rtc@0: 'spi-max-frequency' does not match any of the regexes: 'pinctrl-[0-9]+' Signed-off-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250317120356.2195670-1-festevam@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flagJonathan Marek
Qualcomm x1e80100 firmware sets the ownership of the RTC alarm to ADSP. Thus writing to RTC alarm registers and receiving alarm interrupts is not possible. Add a qcom,no-alarm flag to support RTC on this platform. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20241015004945.3676-3-jonathan@marek.ca [ johan: move vendor property; use boolean; reword description ] Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20250219134118.31017-2-johan+linaro@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
generated by cgit v1.2.3 (git 2.25.1) at 2026-09-09 22:15:38 +0000