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path: root/drivers/rtc/Kconfig
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2024-01-15rtc: max31335: add driver supportAntoniu Miclaus
RTC driver for MAX31335 ±2ppm Automotive Real-Time Clock with Integrated MEMS Resonator. Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://lore.kernel.org/r/20231120120114.48657-2-antoniu.miclaus@analog.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-08rtc: lpc24xx: add missing dependencyAntoniu Miclaus
The driver depends on COMMON_CLK. Add the dependency in Kconfig. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://lore.kernel.org/r/20231114114532.37840-1-antoniu.miclaus@analog.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-08rtc: tps6594: Add driver for TPS6594 RTCEsteban Blanc
TPS6594 PMIC is a MFD. This patch adds support for the RTC found inside TPS6594 family of PMIC. Alarm is also supported. Signed-off-by: Esteban Blanc <eblanc@baylibre.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Tested-by: Thomas Richard <thomas.richard@bootlin.com> Link: https://lore.kernel.org/r/20231107094701.2223486-1-eblanc@baylibre.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-12-17rtc: Add driver for Nuvoton ma35d1 rtc controllerJacky Huang
The ma35d1 rtc controller provides real-time and calendar messaging capabilities. It supports programmable time tick and alarm match interrupts. The time and calendar messages are expressed in BCD format. This driver supports the built-in rtc controller of the ma35d1. It enables setting and reading the rtc time and configuring and reading the rtc alarm. Signed-off-by: Jacky Huang <ychuang3@nuvoton.com> Link: https://lore.kernel.org/r/20230925070251.28-4-ychuang570808@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-10-16rtc: Add support for the SSD202D RTCRomain Perier
Newer SigmaStar SSD202D SoCs contain a Real Time Clock, capable of running while the system is sleeping (battery powered), this is not the case with the other RTC on older SoCs. This adds basic support for this RTC block. Signed-off-by: Romain Perier <romain.perier@gmail.com> Co-developed-by: Daniel Palmer <daniel@0x0f.com> Signed-off-by: Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/r/20230913151606.69494-2-romain.perier@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-10-13rtc: imxdi: Soften dependencies for improved compile coverageUwe Kleine-König
The driver compiles fine on x86_64, so soften the dependencies to ARCH_MXC || COMPILE_TEST. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20231002080529.2535610-2-u.kleine-koenig@pengutronix.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-07-27rtc: bq4802: add sparc dependencyArnd Bergmann
The added HAS_IOPORT dependency might not actually be necessary as Geert points out, but the driver is also only used on one architecture. Sparc is also a special case here since it converts port numbers into virtual addresses rather than having them mapped into a particular part of the __iomem address space, so the difference is actually not important here. Add a dependency on sparc, but allow compile-testing otherwise, to make this clearer without anyone having to spend much time modernizing the driver beyond that. Reported-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: David S. Miller <davem@davemloft.net> Link: https://lore.kernel.org/all/CAMuHMdWEx0F=fNei4Bz_JPkuvoaN-+zk08h0i8KnSi_VjO615g@mail.gmail.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230719192835.1025406-1-arnd@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-07-27rtc: pcf2127: add support for PCF2131 RTCHugo Villeneuve
This RTC is very similar in functionality to the PCF2127/29. Basically it: -supports two new control registers at offsets 4 and 5 -supports a new reset register (not implemented in this driver) -supports 4 tamper detection functions instead of 1 -has no nvmem (like the PCF2129) -has two output interrupt pins Because of that, most of the register addresses are very different, although they still follow the same layout. For example, the tamper registers have a different base address, but the offsets are all the same. Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Link: https://lore.kernel.org/r/20230622145800.2442116-12-hugo@hugovil.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-07-03Merge tag 'rtc-6.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "The isl1208 dirver was reworked tobe able to work as part of an MFD. All the Loongson chips are now supported through a new driver, the old one is removed. Summary: Subsystem: - Switch i2c drivers back to use .probe() - Constify pointers to hwmon_channel_info New driver: - Loongson on chip RTC, replacing the Loongson 1 only driver Drivers: - isl1208: cleanup and support for RAA215300 - st-lpc: cleanups - stm32: fix wakeup" * tag 'rtc-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (21 commits) rtc: Add rtc driver for the Loongson family chips rtc: Remove the Loongson-1 RTC driver dt-bindings: rtc: Split loongson,ls2x-rtc into SoC-based compatibles rtc: rv3028: make rv3028 probeable from userspace rtc: isl1208: Add support for the built-in RTC on the PMIC RAA215300 rtc: isl1208: Add isl1208_set_xtoscb() rtc: isl1208: Drop enum isl1208_id and split isl1208_configs[] rtc: isl1208: Make similar I2C and DT-based matching table rtc: isl1208: Drop name variable dt-bindings: rtc: isil,isl1208: Document clock and clock-names properties dt-bindings: rtc: isl1208: Convert to json-schema rtc: st-lpc: Simplify clk handling in st_rtc_probe() rtc: st-lpc: Release some resources in st_rtc_probe() in case of error rtc: stm32: remove dedicated wakeup management dt-bindings: rtc: restrict node name suffixes rtc: add HAS_IOPORT dependencies rtc: Switch i2c drivers back to use .probe() rtc: rv3032: constify pointers to hwmon_channel_info rtc: isl12022: constify pointers to hwmon_channel_info rtc: ds3232: constify pointers to hwmon_channel_info ...
2023-06-26rtc: Add rtc driver for the Loongson family chipsBinbin Zhou
The Loongson family chips use an on-chip counter 0 (Time Of Year counter) as the RTC. We will refer to them as rtc-loongson. Cc: Keguang Zhang <keguang.zhang@gmail.com> Cc: Yang Ling <gnaygnil@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@kernel.org> Signed-off-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Keguang Zhang <keguang.zhang@gmail.com> Tested-by: Keguang Zhang <keguang.zhang@gmail.com> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> # LS7A Link: https://lore.kernel.org/r/0c5171156390f614d72f36ceb04a20f432ca639e.1685693501.git.zhoubinbin@loongson.cn Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26rtc: Remove the Loongson-1 RTC driverBinbin Zhou
Remove the ls1x-rtc driver as it is obsolete. We will continue to support the ls1x RTC in the upcoming Loongson unified RTC driver rtc-loongson. Cc: Keguang Zhang <keguang.zhang@gmail.com> Cc: zhao zhang <zhzhl555@gmail.com> Cc: Yang Ling <gnaygnil@gmail.com> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Acked-by: Keguang Zhang <keguang.zhang@gmail.com> Link: https://lore.kernel.org/r/c38c666015a162d7031b20a48209ce577bab62cd.1685693501.git.zhoubinbin@loongson.cn Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-06rtc: add HAS_IOPORT dependenciesNiklas Schnelle
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. We thus need to add HAS_IOPORT as dependency for those drivers using them. Co-developed-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Acked-by: Maciej W. Rozycki <macro@orcam.me.uk> Link: https://lore.kernel.org/r/20230522105049.1467313-31-schnelle@linux.ibm.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-05-15mfd: rk808: Split into core and i2cSebastian Reichel
Split rk808 into a core and an i2c part in preparation for SPI support. Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> # for RTC Tested-by: Diederik de Haas <didi.debian@cknow.org> # Rock64, Quartz64 Model A + B Tested-by: Vincent Legoll <vincent.legoll@gmail.com> # Pine64 QuartzPro64 Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20230504173618.142075-6-sebastian.reichel@collabora.com Signed-off-by: Lee Jones <lee@kernel.org>
2023-03-17rtc: mpfs: convert SOC_MICROCHIP_POLARFIRE to ARCH_MICROCHIP_POLARFIREConor Dooley
As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the use of such symbols on other architectures, convert the Microchip FPGA RTC driver to use the new symbol. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230309204452.969574-5-conor@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-03-03Merge tag 'rtc-6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "A few drivers got some nice cleanups and a new driver are making the bulk of the changes. Subsystem: - allow rtc_read_alarm without read_alarm callback New driver: - NXP BBNSM module RTC Drivers: - use IRQ flags from fwnode when available - abx80x: nvmem support - brcmstb-waketimer: add non-wake alarm support - ingenic: provide CLK32K clock - isl12022: cleanups - moxart: switch to using gpiod API - pcf85363: allow setting quartz load - pm8xxx: cleanups and support for setting time - rv3028, rv3032: add ACPI support" * tag 'rtc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (64 commits) rtc: pm8xxx: add support for nvmem offset dt-bindings: rtc: qcom-pm8xxx: add nvmem-cell offset rtc: abx80x: Add nvmem support rtc: rx6110: Remove unused of_gpio,h rtc: efi: Avoid spamming the log on RTC read failure rtc: isl12022: sort header inclusion alphabetically rtc: isl12022: Join string literals back rtc: isl12022: Drop unneeded OF guards and of_match_ptr() rtc: isl12022: Explicitly use __le16 type for ISL12022_REG_TEMP_L rtc: isl12022: Get rid of unneeded private struct isl12022 rtc: pcf85363: add support for the quartz-load-femtofarads property dt-bindings: rtc: nxp,pcf8563: move pcf85263/pcf85363 to a dedicated binding rtc: allow rtc_read_alarm without read_alarm callback rtc: rv3032: add ACPI support rtc: rv3028: add ACPI support rtc: bbnsm: Add the bbnsm rtc support rtc: jz4740: Register clock provider for the CLK32K pin rtc: jz4740: Use dev_err_probe() rtc: jz4740: Use readl_poll_timeout dt-bindings: rtc: Add #clock-cells property ...
2023-02-22rtc: bbnsm: Add the bbnsm rtc supportJacky Bai
The BBNSM module includes a real time counter with alarm. Add a RTC driver for this function. Signed-off-by: Jacky Bai <ping.bai@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20230215024117.3357341-3-ping.bai@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-02-09rtc: jz4740: Register clock provider for the CLK32K pinPaul Cercueil
On JZ4770 and JZ4780, the CLK32K pin is configurable. By default, it is configured as a GPIO in input mode, and its value can be read through GPIO PD14. With this change, clients can now request the 32 kHz clock on the CLK32K pin, through Device Tree. This clock is simply a pass-through of the input oscillator's clock with enable/disable operations. This will permit the WiFi/Bluetooth chip to work on the MIPS CI20 board, which does source one of its clocks from the CLK32K pin. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20230129120442.22858-5-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-02-01rtc: remove v3020 driverArnd Bergmann
The v3020 RTC driver was exclusively used by the now removed cm-x300.c machine. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: linux-kernel@vger.kernel.org Cc: linux-rtc@vger.kernel.org Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-01-16ARM: s3c: remove s3c24xx specific hacksArnd Bergmann
A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or similar symbols that are no longer available with the platform gone, though the drivers themselves are still used on newer platforms, so remove these hacks. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-21Merge tag 'mfd-next-6.2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add support for Ampere Computing SMpro - Add support for TI TPS65219 PMIC New Functionality: - Add support for multiple devices of the same type; rk808 Fix-ups: - Convert a bunch of I2C class drivers over to .probe_new() - Remove superfluous includes; mc13xxx-*, palmas, timberdale - Use correct includes for GPIO handling; madera-core - Convert to GPIOD; twl6040 - Remove unused platform data handling; twl6040 - Device Tree changes; many - Remove unused drivers; dm355evm_msp, davinci_voicecodec, htc-i2cpld - Add support for modules; palmas - Enable COMPILE_TEST support; intel_soc_pmic* - Trivial: spelling / whitespace fixes; mc13xxx-spi - Replace old PM helpers with new ones; many - Convert deprecated mask_invert usage to unmask_base; many - Use devm_*() calls; qcom_rpm - MAINTAINER fix-ups - Make use of improved / replaced APIs; palmas, fsl-imx25-tsadc, stm32-lptimer, qcom_rpm, rohm-* Bug Fixes: - Add bounds / error checking; mt6360-core - No sleeping inside critical sections; axp20x - Fix missing dependencies; ROHM_BD957XMUF - Repair error paths; qcom-pm8008" * tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (161 commits) dt-bindings: mfd: da9062: Correct file name for watchdog mfd: pm8008: Fix return value check in pm8008_probe() mfd: rohm: Use dev_err_probe() mfd: Drop obsolete dependencies on COMPILE_TEST dt-bindings: mfd: da9062: Move IRQ to optional properties mfd: qcom_rpm: Use devm_of_platform_populate() to simplify code mfd: qcom_rpm: Fix an error handling path in qcom_rpm_probe() mfd: stm32-lptimer: Use devm_platform_get_and_ioremap_resource() mfd: rohm-bd9576: Convert to i2c's .probe_new() mfd: fsl-imx25-tsadc: Use devm_platform_get_and_ioremap_resource() dt-bindings: Fix maintainer email for a few ROHM ICs mfd: palmas: Use device_get_match_data() to simplify the code Input: Add tps65219 interrupt driven powerbutton mfd: tps65219: Add driver for TI TPS65219 PMIC mfd: bd957x: Fix Kconfig dependency on REGMAP_IRQ mfd: wcd934x: Convert irq chip to config regs mfd: tps65090: Replace irqchip mask_invert with unmask_base mfd: sun4i-gpadc: Replace irqchip mask_invert with unmask_base mfd: stpmic1: Fix swapped mask/unmask in irq chip mfd: sprd-sc27xx-spi: Replace irqchip mask_invert with unmask_base ...
2022-12-15rtc: isl12026: drop obsolete dependency on COMPILE_TESTJean Delvare
Since commit 0166dc11be91 ("of: make CONFIG_OF user selectable"), it is possible to test-build any driver which depends on OF on any architecture by explicitly selecting OF. Therefore depending on COMPILE_TEST as an alternative is no longer needed. It is actually better to always build such drivers with OF enabled, so that the test builds are closer to how each driver will actually be built on its intended target. Building them without OF may not test much as the compiler will optimize out potentially large parts of the code. In the worst case, this could even pop false positive warnings. Dropping COMPILE_TEST here improves the quality of our testing and avoids wasting time on non-existent issues. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20221124154359.039be06c@endymion.delvare Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2022-12-07mfd: Remove dm355evm_msp driverArnd Bergmann
The DaVinci DM355EVM platform is gone after the removal of all unused board files, so the MTD device along with its sub-devices can be removed as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221019152947.3857217-7-arnd@kernel.org
2022-11-15rtc: remove davinci rtc driverArnd Bergmann
The Davinci dm365 SoC support was removed, so the rtc driver has no remaining users. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Marc Zyngier <maz@kernel.org> Acked-by: Kevin Hilman <khilman@baylibre.com> Link: https://lore.kernel.org/r/20221019152947.3857217-9-arnd@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2022-10-13rtc: isl12022: switch to using regmap APIRasmus Villemoes
The regmap abstraction allows us to avoid the private i2c transfer helpers, and also offers some nice utility functions such as the regmap_update_bits family. While at it, simplify the code even more by not keeping track of ->write_enabled: rtc_set_time is not a hot path, so one extra i2c read doesn't hurt (regmap_update_bits elides the write when the bits are already as desired). Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Link: https://lore.kernel.org/r/20220921114624.3250848-9-linux@rasmusvillemoes.dk Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2022-07-26rtc: Add NCT3018Y real time clock driverMia Lin
Add real time clock support for NCT3018Y. Signed-off-by: Mia Lin <mimi05633@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220713090647.8028-4-mimi05633@gmail.com
2022-07-26rtc: vr41xx: remove driverThomas Bogendoerfer
Commit d3164e2f3b0a ("MIPS: Remove VR41xx support") removed support for MIPS VR41xx platform, so remove exclusive drivers for this platform, too. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220715135330.134684-1-tsbogend@alpha.franken.de
2022-06-24rtc: Introduce ti-k3-rtcNishanth Menon
Introduce support for Texas Instruments Real Time Clock controller on newer K3 family of SoCs such as AM62x. The hardware module that is being supported is the "digital only" version which doesn't have capability of external wakeup sources and external power backup. However, for many practical applications, this should suffice as RTC is operational across low power sequences. The hardware block by itself is split into two distinct domains internally to further reduce the power consumption with the actual counter block and comparators clocked off a 32k clock source (which based on SoC integration can be sourced by an external crystal) and an register interface block which is driven by the bus clock. While optimal from power perspective, it does create some complicated synchronizations and sequences that one must be wary of in the driver handling. Acked-by: Andrew Davis <afd@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Tested-by: Georgi Vlaev <g-vlaev@ti.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220623170808.20998-3-nm@ti.com
2022-06-24rtc: Add driver for Microchip PolarFire SoCConor Dooley
Add support for the built-in RTC on Microchip PolarFire SoC Co-Developed-by: Daire McNamara <daire.mcnamara@microchip.com> Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220601123320.2861043-2-conor.dooley@microchip.com
2022-05-17rtc: rzn1: Add new RTC driverMichel Pollet
Add a basic RTC driver for the RZ/N1. Signed-off-by: Michel Pollet <michel.pollet@bp.renesas.com> Co-developed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220516082504.33913-3-miquel.raynal@bootlin.com
2022-04-01Merge tag 'rtc-5.18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "The bulk of the patches are about replacing the uie_unsupported struct rtc_device member by a feature bit. Subsystem: - remove uie_unsupported, all users have been converted to clear RTC_FEATURE_UPDATE_INTERRUPT and provide a reason - RTCs with an alarm with a resolution of a minute are now letting the core handle rounding down the alarm time - fix use-after-free on device removal New driver: - OP-TEE RTC PTA Drivers: - sun6i: Add H616 support - cmos: Fix the AltCentury for AMD platforms - spear: set range" * tag 'rtc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (56 commits) rtc: check if __rtc_read_time was successful rtc: gamecube: Fix refcount leak in gamecube_rtc_read_offset_from_sram rtc: mc146818-lib: Fix the AltCentury for AMD platforms rtc: optee: add RTC driver for OP-TEE RTC PTA rtc: pm8xxx: Return -ENODEV if set_time disallowed rtc: pm8xxx: Attach wake irq to device clk: sunxi-ng: sun6i-rtc: include clk/sunxi-ng.h rtc: remove uie_unsupported rtc: xgene: stop using uie_unsupported rtc: hym8563: switch to RTC_FEATURE_UPDATE_INTERRUPT rtc: hym8563: let the core handle the alarm resolution rtc: hym8563: switch to devm_rtc_allocate_device rtc: efi: switch to RTC_FEATURE_UPDATE_INTERRUPT rtc: efi: switch to devm_rtc_allocate_device rtc: add new RTC_FEATURE_ALARM_WAKEUP_ONLY feature rtc: spear: fix spear_rtc_read_time rtc: spear: drop uie_unsupported rtc: spear: set range rtc: spear: switch to devm_rtc_allocate_device rtc: pcf8563: switch to RTC_FEATURE_UPDATE_INTERRUPT ...
2022-03-25rtc: optee: add RTC driver for OP-TEE RTC PTAClément Léger
This drivers allows to communicate with a RTC PTA handled by OP-TEE [1]. This PTA allows to query RTC information, set/get time and set/get offset depending on the supported features. [1] https://github.com/OP-TEE/optee_os/pull/5179 Signed-off-by: Clément Léger <clement.leger@bootlin.com> Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220308133505.471601-1-clement.leger@bootlin.com
2022-03-07rtc: max77686: Add MAX77714 supportLuca Ceresoli
The RTC included in the MAX77714 PMIC is very similar to the one in the MAX77686. Reuse the rtc-max77686.c driver with the minimum required changes for the MAX77714 RTC. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2022-01-05rtc: Add driver for RTC in Sunplus SP7021Vincent Shih
Add driver for RTC in Sunplus SP7021 Signed-off-by: Vincent Shih <vincent.sunplus@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/1638517579-10316-2-git-send-email-vincent.sunplus@gamil.com
2021-12-16rtc: gamecube: Add a RTC driver for the GameCube, Wii and Wii UEmmanuel Gil Peyrot
These three consoles share a device, the MX23L4005, which contains a clock and 64 bytes of SRAM storage, and is exposed on the EXI bus (similar to SPI) on channel 0, device 1. This driver allows it to be used as a Linux RTC device, where time can be read and set. The hardware also exposes two timers, one which shuts down the console and one which powers it on, but these aren’t supported currently. On the Wii U, the counter bias is stored in a XML file, /config/rtc.xml, encrypted in the SLC (eMMC storage), using a proprietary filesystem. In order to avoid having to implement all that, this driver assumes a bootloader will parse this XML file and write the bias into the SRAM, at the same location the other two consoles have it. Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211215175501.6761-2-linkmauve@linkmauve.fr
2021-11-12Merge tag 'rtc-5.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "This includes new ioctls to get and set parameters and in particular the backup switch mode that is needed for some RTCs to actually enable the backup voltage (and have a useful RTC). The same interface can also be used to get the actual features supported by the RTC so userspace has a better way than trying and failing. Summary: Subsystem: - Add new ioctl to get and set extra RTC parameters, this includes backup switch mode - Expose available features to userspace, in particular, when alarmas have a resolution of one minute instead of a second. - Let the core handle those alarms with a minute resolution New driver: - MSTAR MSC313 RTC Drivers: - Add SPI ID table where necessary - Add BSM support for rv3028, rv3032 and pcf8523 - s3c: set RTC range - rx8025: set range, implement .set_offset and .read_offset" * tag 'rtc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits) rtc: rx8025: use .set_offset/.read_offset rtc: rx8025: use rtc_add_group rtc: rx8025: clear RTC_FEATURE_ALARM when alarm are not supported rtc: rx8025: set range rtc: rx8025: let the core handle the alarm resolution rtc: rx8025: switch to devm_rtc_allocate_device rtc: ab8500: let the core handle the alarm resolution rtc: ab-eoz9: support UIE when available rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPT rtc: rv3032: let the core handle the alarm resolution rtc: s35390a: let the core handle the alarm resolution rtc: handle alarms with a minute resolution rtc: pcf85063: silence cppcheck warning rtc: rv8803: fix writing back ctrl in flag register rtc: s3c: Add time range rtc: s3c: Extract read/write IO into separate functions rtc: s3c: Remove usage of devm_rtc_device_register() rtc: tps80031: Remove driver rtc: sun6i: Allow probing without an early clock provider rtc: pcf8523: add BSM support ...
2021-10-23rtc: tps80031: Remove driverDmitry Osipenko
Driver was upstreamed in 2013 and never got a user, remove it. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211021192258.21968-2-digetx@gmail.com
2021-10-18rtc: pcf8523: switch to regmapAlexandre Belloni
Use regmap to access the RTC registers, this is a huge reduction in code lines and generated code. Values on ARMv7: text data bss dec hex 5180 132 0 5312 14c0 before 3900 132 0 4032 fc0 after Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018153651.82069-1-alexandre.belloni@bootlin.com
2021-10-17rtc: s3c: remove HAVE_S3C_RTC in favor of direct dependenciesWill McVicker
The config HAVE_S3C_RTC is not really needed since we can simply just add the dependencies directly to RTC_DRV_S3C. Also, one less config to keep track of! Signed-off-by: Will McVicker <willmcvicker@google.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211013212256.3425889-1-willmcvicker@google.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-09-26rtc: Add support for the MSTAR MSC313 RTCDaniel Palmer
This adds support for the RTC block on the Mstar MSC313e SoCs and newer. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Co-developed-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Romain Perier <romain.perier@gmail.com> Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210823171613.18941-3-romain.perier@gmail.com
2021-09-09rtc: rx8010: select REGMAP_I2CYu-Tung Chang
The rtc-rx8010 uses the I2C regmap but doesn't select it in Kconfig so depending on the configuration the build may fail. Fix it. Signed-off-by: Yu-Tung Chang <mtwget@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210830052532.40356-1-mtwget@gmail.com
2021-08-10rtc: move RTC_LIB_KUNIT_TEST to proper locationAlexandre Belloni
Move RTC_LIB_KUNIT_TEST under RTC_LIB so it is clear in the menu this is part of the RTC subsystem. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210810212008.631359-2-alexandre.belloni@bootlin.com
2021-08-10rtc: Improve performance of rtc_time64_to_tm(). Add tests.Cassio Neri
The current implementation of rtc_time64_to_tm() contains unnecessary loops, branches and look-up tables. The new one uses an arithmetic-based algorithm appeared in [1] and is approximately 4.3 times faster (YMMV). The drawback is that the new code isn't intuitive and contains many 'magic numbers' (not unusual for this type of algorithm). However, [1] justifies all those numbers and, given this function's history, the code is unlikely to need much maintenance, if any at all. Add a KUnit test case that checks every day in a 160,000 years interval starting on 1970-01-01 against the expected result. Add a new config RTC_LIB_KUNIT_TEST symbol to give the option to run this test suite. [1] Neri, Schneider, "Euclidean Affine Functions and Applications to Calendar Algorithms". https://arxiv.org/abs/2102.06959 Signed-off-by: Cassio Neri <cassio.neri@gmail.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210624201343.85441-1-cassio.neri@gmail.com
2021-06-20rtc: bd70528: Drop BD70528 supportMatti Vaittinen
The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210527105819.GA3111334@localhost.localdomain
2021-05-25rtc: bd70528: fix BD71815 watchdog dependencyArnd Bergmann
The added Kconfig dependency is slightly incorrect, which can lead to a link failure when the watchdog is a loadable module: arm-linux-gnueabi-ld: drivers/rtc/rtc-bd70528.o: in function `bd70528_set_rtc_based_timers': rtc-bd70528.c:(.text+0x6cc): undefined reference to `bd70528_wdt_set' arm-linux-gnueabi-ld: drivers/rtc/rtc-bd70528.o: in function `bd70528_set_time': rtc-bd70528.c:(.text+0xaa0): undefined reference to `bd70528_wdt_lock' arm-linux-gnueabi-ld: rtc-bd70528.c:(.text+0xab8): undefined reference to `bd70528_wdt_unlock' arm-linux-gnueabi-ld: drivers/rtc/rtc-bd70528.o: in function `bd70528_alm_enable': rtc-bd70528.c:(.text+0xfc0): undefined reference to `bd70528_wdt_lock' arm-linux-gnueabi-ld: rtc-bd70528.c:(.text+0x1030): undefined reference to `bd70528_wdt_unlock' The problem is that it allows to be built-in if MFD_ROHM_BD71828 is built-in, even when the watchdog is a loadable module. Rework this so that having the watchdog as a loadable module always forces the rtc to be a module as well instead of built-in, regardless of bd71828. Fixes: c56dc069f268 ("rtc: bd70528: Support RTC on ROHM BD71815") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210422151545.2403356-1-arnd@kernel.org
2021-05-03Merge tag 'rtc-5.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Mostly small fixes and two drivers gaining alarm support. Summary: Subsystem: - UIE emulation has been reworked to avoid calling driver callbacks when it is known it will not work Drivers: - ab-eoz9: add alarm support - pcf8523: add alarm support" * tag 'rtc-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (27 commits) rtc: sysfs: check features instead of ops rtc: omap: use rtc_write to access OMAP_RTC_OSC_REG rtc: s5m: Remove reference to parent's device pdata rtc: ds1307: Fix wday settings for rx8130 rtc: pcf8523: report oscillator failures rtc: pcf8523: add alarm support rtc: pcf8523: remove useless define rtc: rtc_update_irq_enable: rework UIE emulation rtc: ds1307: remove flags rtc: ds1307: replace HAS_ALARM by RTC_FEATURE_ALARM rtc: imx-sc: remove .read_alarm rtc: ds1511: remove unused function rtc: fsl-ftm-alarm: add MODULE_TABLE() rtc: rtc-spear: replace spin_lock_irqsave by spin_lock in hard IRQ dt-bindings: rtc: qcom-pm8xxx-rtc: Add qcom pm8xxx rtc bindings rtc: pm8xxx: Add RTC support for PMIC PMK8350 rtc: ab-eoz9: make use of RTC_FEATURE_ALARM rtc: ab-eoz9: add alarm support rtc: ab-eoz9: set regmap max_register rtc: pcf85063: fallback to parent of_node ...
2021-04-16rtc: goldfish: remove dependency to OFLaurent Vivier
We want to use the goldfish RTC on a machine without OF. As there is no real dependency on it, remove the OF dependency from the goldfish entry in Kconfig Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210323221430.3735147-2-laurent@vivier.eu
2021-04-14Merge tags 'ib-mfd-clk-gpio-regulator-rtc-v5.13', 'ib-mfd-extcon-v5.13', ↵Lee Jones
'ib-mfd-input-v5.13-1', 'ib-mfd-platform-x86-v5.13', 'ib-mfd-power-v5.13', 'ib-mfd-pwm-rtc-v5.13-1' and 'ib-regulator-list-ramp-helpers-v5.13' into ibs-for-mfd-merged Immutable branch between MFD, Clock, GPIO, Regulator and RTC due for the v5.13 merge window Immutable branch between MFD and Extcon due for the v5.13 merge window Immutable branch between MFD and Input due for the v5.13 merge window Immutable branch between MFD and Platform/x86 due for the v5.13 merge window Immutable branch between MFD and Power due for the v5.13 merge window Immutable branch between MFD, PWM and RTC due for the v5.13 merge window
2021-04-14rtc: bd70528: Support RTC on ROHM BD71815Matti Vaittinen
BD71815 contains similar RTC block as BD71828. Only the address offsets seem different. Support also BD71815 RTC using rtc-bd70528. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-03-15rtc: imxdi: Convert to a DT-only driverFabio Estevam
i.MX has been converted to a DT-only platform, so make the driver depend on OF, remove the CONFIG_OF ifdefery and remove of_match_ptr(). Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210315172029.173250-1-festevam@gmail.com
2021-03-10rtc: New driver for RTC in Netronix embedded controllerJonathan Neuschäfer
With this driver, mainline Linux can keep its time and date in sync with the vendor kernel. Advanced functionality like alarm and automatic power-on is not yet supported. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
generated by cgit (git 2.34.1) at 2024-06-04 13:34:31 +0000