kernel/linux.git/drivers/rtc/Kconfig, branch v7.2-rc1

rtc: remove unused pcap driver

2026-06-22T22:13:35+00:00

The platform was removed a few years ago, and the mfd driver is also gone now, so it is impossible to build or use it. Signed-off-by: Arnd Bergmann Link: https://patch.msgid.link/20260527193927.3523952-1-arnd@kernel.org Signed-off-by: Alexandre Belloni

rtc: pic32: allow driver to be compiled with COMPILE_TEST

2026-04-12T20:53:18+00:00

This driver currently only supports builds against a PIC32 target. Now that commit ed65ae9f6c6b ("rtc: pic32: update include to use pic32.h from platform_data") is merged, it's possible to compile this driver on other architectures. To avoid future breakage of this driver in the future, let's update the Kconfig so that it can be built with COMPILE_TEST enabled on all architectures. Signed-off-by: Brian Masney Link: https://patch.msgid.link/20260222-rtc-pic32-v1-1-3f8eb654a34d@redhat.com Signed-off-by: Alexandre Belloni

Merge tag 'rtc-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

2026-02-22T17:43:11+00:00

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

rtc: nvvrs: Add ARCH_TEGRA to the NV VRS RTC driver

2026-01-19T23:12:07+00:00

The NV VRS RTC driver currently is only supported on the Tegra platform so add a dep for ARCH_TEGRA and compile test so it doesn't show up universally across all arches/platforms. Fixes: 9d6d6b06933c8 ("rtc: nvvrs: add NVIDIA VRS RTC device driver") Cc: Shubhi Garg Cc: Jon Hunter Signed-off-by: Peter Robinson Acked-by: Jon Hunter Link: https://patch.msgid.link/20251222035651.433603-1-pbrobinson@gmail.com Signed-off-by: Alexandre Belloni

rtc: bd70528: Support BD72720 rtc

2026-01-13T12:50:24+00:00

The BD72720 has similar RTC block as a few other ROHM PMICs. Add support for BD72720 RTC. Signed-off-by: Matti Vaittinen Acked-by: Alexandre Belloni Link: https://patch.msgid.link/3241773f0f8e8d8e591a8e948495686cfdee4875.1765804226.git.mazziesaccount@gmail.com Signed-off-by: Lee Jones

rtc: spacemit: MFD_SPACEMIT_P1 as dependencies

2025-12-08T22:02:10+00:00

RTC_DRV_SPACEMIT_P1 is a subdevice of P1 and should depend on MFD_SPACEMIT_P1 rather than selecting it directly. Using 'select' does not always respect the parent's dependencies, so 'depends on' is the safer and more correct choice. Additionally, the default value depends on MFD_SPACEMIT_P1 rather than ARCH_SPACEMIT. Signed-off-by: Troy Mitchell Acked-by: Alex Elder Link: https://patch.msgid.link/20251118-p1-kconfig-fix-v3-2-8839c5ac5db3@linux.spacemit.com Signed-off-by: Alexandre Belloni

rtc: Add new rtc-macsmc driver for Apple Silicon Macs

2025-12-08T21:41:59+00:00

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. On T600x machines, the RTC counter must be accessed via the SMC to get full functionality, and it seems likely that future machines will move towards making SMC handle all RTC functionality. The SMC RTC counter access is implemented on all current machines as of the time of this writing, on firmware 12.x. However, the RTC offset (needed to set the time) is still only accessible via direct PMU access. To handle this, we expose the RTC offset as an NVMEM cell from the SPMI PMU device node, and this driver consumes that cell and uses it to compute/set the current time. Reviewed-by: Neal Gompa Signed-off-by: Hector Martin Signed-off-by: Sven Peter Signed-off-by: James Calligeros Link: https://patch.msgid.link/20251112-macsmc-subdevs-v5-3-728e4b91fe81@gmail.com Signed-off-by: Alexandre Belloni

rtc: Kconfig: add MC34708 to mc13xxx help text

2025-12-08T21:26:06+00:00

MC34708 is one of the three mfd devices supported by DRV_MC13XXX. Update Kconfig accordingly. Signed-off-by: Alexander Kurz Link: https://patch.msgid.link/20251011062605.13591-1-akurz@blala.de Signed-off-by: Alexandre Belloni

rtc: nvvrs: add NVIDIA VRS RTC device driver

2025-11-06T22:50:08+00:00

Add support for NVIDIA VRS (Voltage Regulator Specification) RTC device driver. 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 Reviewed-by: Jon Hunter Tested-by: Jon Hunter Link: https://patch.msgid.link/20251007135738.487694-4-shgarg@nvidia.com Signed-off-by: Alexandre Belloni

rtc: atcrtc100: Add ATCRTC100 RTC driver

2025-11-06T22:16:13+00:00

RTC driver for Andes ATCRTC100 Real-Time Clock. Signed-off-by: CL Wang Link: https://patch.msgid.link/20250915031439.2680364-4-cl634@andestech.com Signed-off-by: Alexandre Belloni