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2017-10-26rtc: mediatek: add driver for RTC on MT7622 SoCSean Wang1-0/+10
This patch introduces the driver for the RTC on MT7622 SoC. Signed-off-by: Sean Wang <[email protected]> Reviewed-by: Yingjoe Chen <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-09-05rtc: Add Realtek RTD1295Andreas Färber1-0/+8
Based on QNAP's arch/arm/mach-rtk119x/driver/rtk_rtc_drv.c code and mach-rtk119x/driver/dc2vo/fpga/include/mis_reg.h register definitions. The base year 2014 was observed on all of Zidoo X9S, ProBox2 Ava and Beelink Lake I. Signed-off-by: Andreas Färber <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-09-01rtc: goldfish: Add RTC driver for Android emulatorMiodrag Dinic1-0/+8
Add device driver for a virtual RTC device in Android emulator. The compatible string used by OS for binding the driver is defined as "google,goldfish-rtc". Signed-off-by: Miodrag Dinic <[email protected]> Signed-off-by: Goran Ferenc <[email protected]> Signed-off-by: Aleksandar Markovic <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-09-01rtc: ds1307: add basic support for ds1341 chipNikita Yushchenko1-5/+5
This adds support for reading and writing date/time from/to ds1341 chip. ds1341 chip has other features - alarms, input clock (can be used instead of intercal oscillator for better accuracy), output clock ("square wave generation"). However, not all of that is available at the same time. Same chip pins, CLKIN/nINTA and SQW/nINTB, can be used either for input/output clocks, or for alarm interrupts. Role of these pins on particular board depends on hardware wiring. We can add device tree properties that describe if each of pins is wired as clock, or as interrupt, or left unconnected, and enable support for corresponding functionality based on that. But that is cumbersome, requires hardware for testing, and has to deal with bit enabling/disabling output clock also affects which pins alarm interrupts are routed to. Another factor is that there are hardware setups (i.e. ZII RDU2) that power DS1341 from SuperCap, which makes power saving critical. For such setups, kernel driver should leave register bits that control mentioned pins in the state configured by bootloader. Given all that, it was decided to limit support to "only date/time" for now. That is enough for common use case. Full (and cumbersome) implementation can be added later if ever needed. Signed-off-by: Nikita Yushchenko <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Tested-by: Aleksander Morgado <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-09-01rtc: rk808: Name RK805 in Kconfig for RTC_DRV_RK808Elaine Zhang1-2/+2
The RK808 and RK805 PMICs are using a similar register map. We can reuse the rtc driver for the RK805 PMIC. So let's add the RK805 in the Kconfig description. Signed-off-by: Elaine Zhang <[email protected]> Signed-off-by: Joseph Chen <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-07-07rtc: add generic nvmem supportAlexandre Belloni1-0/+8
Many RTCs have an on board non volatile storage. It can be battery backed RAM or an EEPROM. Use the nvmem subsystem to export it to both userspace and in-kernel consumers. This stays compatible with the previous (non documented) ABI that was using /sys/class/rtc/rtcx/device/nvram to export that memory. But will warn about the deprecation. Signed-off-by: Alexandre Belloni <[email protected]>
2017-07-06rtc: ds3232: add temperature supportKirill Esipov1-0/+8
DS3232/DS3234 has the temperature registers with a resolution of 0.25 degree celsius. This enables to get the value through hwmon. # cat /sys/class/hwmon/hwmon0/temp1_input 37250 Signed-off-by: Kirill Esipov <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-07-06rtc: gemini/ftrtc010: rename driver and symbolsLinus Walleij1-5/+5
The Gemini RTC is actually a generic IP block from Faraday Technology names FTRTC010. Rename the driver file and all symbols to match this IP name. The relationship can be clearly seen in the U-Boot driver posted by Po-Yu Chuang for the Faraday A320 board: https://lists.denx.de/pipermail/u-boot/2009-September/061326.html Remove the dependency on ARCH_GEMINI but select the driver for ARCH_GEMINI so we get a smooth transition. The IP block is synthsized on different silicon and architectures. Cc: Po-Yu Chuang <[email protected]> Acked-by: Hans Ulli Kroll <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-07-05rtc: brcmstb-waketimer: Add Broadcom STB wake-timerBrian Norris1-0/+11
This adds support for the Broadcom STB wake-timer which is a timer in the chip's 27Mhz clock domain that offers the ability to wake the system (wake-up source) from suspend states (S2, S3, S5). It is supported using the rtc framework allowing us to configure alarms for system wake-up. Signed-off-by: Brian Norris <[email protected]> Signed-off-by: Markus Mayer <[email protected]> Signed-off-by: Florian Fainelli <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-04-03rtc: sh: add support for rza seriesChris Brandt1-2/+2
This same RTC is used in RZ/A series MPUs, therefore with some slight changes, this driver can be reused. Additionally, since ARM architectures require Device Tree configurations, device tree support has been added. Signed-off-by: Chris Brandt <[email protected]> Reviewed-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-03-09rtc: cpcap: new rtc driverSebastian Reichel1-0/+7
This driver supports the Motorola CPCAP PMIC found on some of Motorola's mobile phones, such as the Droid 4. Tested-by: Tony Lindgren <[email protected]> Signed-off-by: Sebastian Reichel <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-02-27Merge tag 'rtc-4.11' of ↵Linus Torvalds1-3/+15
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Subsystem: - constify rtc_class_ops structures New driver: - STM32 Drivers: - armada38x: fix errata, Armada 7K/8K support - ds3232: fix wakeup support - gemini: DT support - m48t86: huge cleanup and platform_data removal - mcp795: alarm support - sun6i: proper oscillator handling - tegra: proper clock handling - tps65910: calibration support" * tag 'rtc-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (44 commits) rtc: ds3232: Call device_init_wakeup before device_register rtc: pcf2127: bulk read only date and time registers. rtc: armada38x: Add support for Armada 7K/8K rtc: armada38x: Prepare driver to manage different versions rtc: ds3232: Add regmap max_register definition. rtc: ds3232: Cleanup whitespace around register and bit definitions. rtc: m48t86: remove unused platform_data ARM: Orion5x: ts78xx: allow rtc-m48t86 to manage it's own resources ARM: Orion5x: ts78xx: remove RTC detection ARM: ep93xx: ts72xx: allow rtc-m48t86 to manage its own resources rtc: m48t86: verify that the RTC is actually present rtc: m48t86: add NVRAM support rtc: m48t86: allow driver to manage its resources rtc: m48t86: shorten register name defines bindings: rtc: correct wrong reference in required properties rtc: sun6i: Fix return value check in sun6i_rtc_clk_init() rtc: sun6i: extend test coverage rtc: sun6i: Fix compatibility with old DT binding rtc: snvs: add a missing write sync rtc: bq32000: add support to enable disable the trickle charge FET bypass ...
2017-02-01rtc: sun6i: extend test coverageAlexandre Belloni1-2/+3
COMPILE_TEST was wrongly placed, move it to the "depends on" line. Also depend on COMMON_CLK as the driver now needs it to be properly compiled. Signed-off-by: Alexandre Belloni <[email protected]>
2017-01-26rtc: jz4740: make the driver buildable as a module againAlexandre Belloni1-1/+4
By using kernel_halt() instead of machine_halt(), we can make the driver build as a module. However, jz4740 platforms not loading this module will not be able to power off. Suggested-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]> Revert "rtc: jz4740: make the driver builtin only" This reverts commit b9168c539c0b2de756aaffd380384dbde8adbe07.
2017-01-24rtc: sun6i: Disable the build as a moduleMaxime Ripard1-1/+1
Since we have to provide the clock very early on, the RTC driver cannot be built as a module. Make sure that won't happen. Cc: [email protected] Signed-off-by: Maxime Ripard <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-01-13rtc: add STM32 RTC driverAmelie Delaunay1-0/+11
This patch adds support for the STM32 RTC. Signed-off-by: Amelie Delaunay <[email protected]> Reviewed-by: Mathieu Poirier <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-12-19rtc: add support for EPSON TOYOCOM RTC-7301SF/DGAkinobu Mita1-0/+11
This adds support for EPSON TOYOCOM RTC-7301SF/DG which has parallel interface compatible with SRAM. This driver supports basic clock, calendar and alarm functionality. Tested with Microblaze linux running on Artix7 FPGA board with my own custom IP for RTC-7301. Signed-off-by: Akinobu Mita <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-11-30rtc: twl: make driver DT onlyNicolae Rosia1-0/+1
Since there are no platform based users and all users of this code are TI OMAP-based which is DT only, it makes sense to remove unused code. Signed-off-by: Nicolae Rosia <[email protected]> Tested-by: Tony Lindgren <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-11-09rtc: fix typos in KconfigAlexandre Belloni1-2/+2
s/buillt/built/g Signed-off-by: Alexandre Belloni <[email protected]>
2016-11-09rtc: jz4740: make the driver builtin onlyAlexandre Belloni1-4/+1
Since the driver is now calling machine_halt() that is not exported, it has to be built in the kernel. Building it as a module will fail at linking time. Signed-off-by: Alexandre Belloni <[email protected]>
2016-11-05rtc: Enable compile testing for Maxim and Samsung driversKrzysztof Kozlowski1-3/+4
max8907, max77686 and s5m RTC drivers can be compile tested to increase build coverage. The s5m-rtc uses REGMAP_IRQ so add this as explicit dependency. Signed-off-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-11-04rtc: jz4740: Add support for the RTC in the jz4780 SoCPaul Cercueil1-3/+3
The RTC unit present in the JZ4780 works mostly the same as the one in the JZ4740. The major difference is that register writes need to be explicitly enabled, by writing a magic code (0xA55A) to a "write enable" register before each access. Signed-off-by: Paul Cercueil <[email protected]> Acked-by: Maarten ter Huurne <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-10-19rtc: cmos: don't refer to asm-generic/rtc.hChristoph Hellwig1-2/+2
That header has been gone for a while. I've fixed up the Kconfig comment, but the one in rtc-cmos.c doesn't make any sense to me even looking at its history. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-10-14Merge tag 'rtc-4.9' of ↵Linus Torvalds1-15/+23
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "RTC for 4.9 Subsystem: - delete owner assignment in multiple drivers - constify rtc_class_ops structures Drivers: - ac100: support clock-output-names - cmos: properly handle ACPI alarms and quirky BIOSes and other fixes - ds1307: fix century bit support while staying comaptible with previous behaviour by default - ds1347: switch to regmap - isl12057 is now handled by ds1307 - omap: support external wakeup - rv8803: allow to disable voltage drop detection" * tag 'rtc-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (25 commits) rtc: rv8803: set VDETOFF and SWOFF via device tree dt/bindings: Add bindings for Micro Crystal rv8803 devicetree: Add Micro Crystal AG vendor id rtc: cmos: avoid unused function warning rtc: ac100: Add NULL checking for devm_kzalloc call rtc: ds1347: changed raw spi calls to register map calls rtc: cmos: Restore alarm after resume rtc: cmos: Clear ACPI-driven alarms upon resume rtc: omap: Support ext_wakeup configuration rtc: cmos: Initialize hpet timer before irq is registered rtc: asm9260: rework locking rtc: asm9260: allow COMPILE_TEST rtc: constify rtc_class_ops structures rtc: ac100: support clock-output-names in device tree binding rtc: rx6110: remove owner assignment rtc: pic32: Delete owner assignment rtc: bq32k: Fix handling of oscillator failure flag rtc: bq32k: Use correct mask name for 'minutes' register. rtc: sysfs: fix a cast removing the const attribute Documentation: dt: Intersil isl12057 is not a trivial device ...
2016-10-04Merge branches 'ib-mfd-gpio-4.9', 'ib-mfd-gpio-regulator-4.9', ↵Lee Jones1-2/+12
'ib-mfd-input-4.9', 'ib-mfd-regulator-4.9', 'ib-mfd-regulator-4.9.1', 'ib-mfd-regulator-rtc-4.9', 'ib-mfd-regulator-rtc-4.9-1' and 'ib-mfd-rtc-4.9' into ibs-for-mfd-merged
2016-09-22rtc: ds1347: changed raw spi calls to register map callsRaghavendra Ganiga1-0/+1
This patch changes calls of spi read write calls to register map read and write calls in rtc ds1347 Signed-off-by: Raghavendra Chandra Ganiga <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-09-21rtc: omap: Support ext_wakeup configurationMarcin Niestroj1-0/+3
Support configuration of ext_wakeup sources. This patch makes it possible to enable ext_wakeup and set it's polarity, depending on board configuration. AM335x's dedicated PMIC (tps65217) uses ext_wakeup to notify about power-button presses. Handling power-button presses enables to recover from RTC-only power states correctly. Signed-off-by: Marcin Niestroj <[email protected]> Acked-by: Tony Lindgren <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-09-05rtc: asm9260: allow COMPILE_TESTAlexandre Belloni1-1/+1
The rtc-asm9260 driver compiles correctly on other architectures, add COMPILE_TEST to improve code coverage. Signed-off-by: Alexandre Belloni <[email protected]>
2016-08-31rtc: isl12057: remove driverAlexandre Belloni1-10/+0
The Intersil isl12057 is now supported by the ds1307 driver. Acked-by: Arnaud Ebalard <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-08-31rtc: ds1307: add Intersil ISL12057 supportAlexandre Belloni1-4/+4
Intersil ISL12057 is a drop-in replacement for DS1337. It can be supported by the ds1307 driver. Acked-by: Arnaud Ebalard <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-08-31rtc: ds1307: fix century bit supportAlexandre Belloni1-0/+14
Add an option to properly support the century bit of ds1337 and compatibles and ds1340. Because the driver had a bug until now, it is not possible to switch users to the fixed code directly as RTCs in the field will wrongly have the century bit set. Acked-by: Arnaud Ebalard <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-08-31rtc: Kconfig: Name RK818 in Kconfig for RTC_DRV_RK808Wadim Egorov1-2/+2
The RK808 and RK818 PMICs are using a similar register map. We can reuse the rtc driver for the RK818 PMIC. So let's add the RK818 in the Kconfig description. Signed-off-by: Wadim Egorov <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Signed-off-by: Lee Jones <[email protected]>
2016-08-08rtc: ac100: Add RTC driver for X-Powers AC100Chen-Yu Tsai1-0/+10
X-Powers AC100 is a codec / RTC combo chip. This driver supports the RTC sub-device. The RTC block also has clock outputs and non-volatile storage. Non-volatile storage wthin the RTC hardware is not supported. Clock output support is added in the next patch. Signed-off-by: Chen-Yu Tsai <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Signed-off-by: Lee Jones <[email protected]>
2016-07-28rtc: rv8803: Kconfig: Indicate rx8900 supportBenoît Thébaudeau1-3/+3
This driver supports the Epson RX8900, but this was not indicated in Kconfig. Signed-off-by: Benoît Thébaudeau <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-06-26rtc: move mc146818 helper functions out-of-lineArnd Bergmann1-0/+6
The mc146818_get_time/mc146818_set_time functions are rather large inline functions in a global header file and are used in several drivers and in x86 specific code. Here we move them into a separate .c file that is compiled whenever any of the users require it. This also lets us remove the linux/acpi.h header inclusion from mc146818rtc.h, which in turn avoids some warnings about duplicate definition of the TRUE/FALSE macros. Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-06-26mn10300: use RTC_DRV_CMOS instead of CONFIG_RTCArnd Bergmann1-1/+1
nn10300 has a dependency on mc146818_get_time/mc146818_set_time, which we want to move from the mc146818rtc.h header into the rtc subsystem, which in turn is not usable on mn10300. This changes mn10300 to use the modern rtc-cmos driver instead of the old RTC driver, and that in turn lets us completely remove the read_persistent_clock/update_persistent_clock callbacks. Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-06-04rtc: add support for Maxim max6916Venkat Prashanth B U1-0/+12
Add support for Maxim max6916 RTC. Signed-off-by: Venkat Prashanth B U <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-05-21rtc: rv3029: Add support of RV3049Mylène Josserand1-18/+19
Add support of Microcrystal RV3049 RTC (SPI) using regmap on the RV3029 (I2C) driver. Signed-off-by: Mylène Josserand <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-05-20rtc: ds1302: rewrite using SPISergey Yanovich1-6/+9
DS1302 is an half-duplex SPI device. The driver respects this fact now. Pin configurations should be implemented using SPI subsystem. Signed-off-by: Sergei Ianovich <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-15rtc: rv3029: stop mentioning rv3029c2Alexandre Belloni1-1/+1
rv3029c2 is actually rv3029. c2 denotes an option. Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: pcf2127: add support for spi interfaceAkinobu Mita1-9/+10
pcf2127 has selectable I2C-bus and SPI-bus interface support. This adds support for SPI interface. Signed-off-by: Akinobu Mita <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Alexandre Belloni <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: rv3029: Add thermometer hwmon supportMichael Büsch1-0/+9
This adds support to - enable/disable the thermometer - set the temperature scanning interval - read the current temperature that is used for temp compensation. via hwmon interface Signed-off-by: Michael Buesch <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: merge ds3232 and ds3234Akinobu Mita1-19/+25
According to "Feature Comparison of the DS323x Real-Time Clocks" (http://pdfserv.maximintegrated.com/en/an/AN5143.pdf), DS3232 and DS3234 are very similar. This merges rtc-ds3232 and rtc-ds3234 with using regmap. This change also enables to support alarm for ds3234. Signed-off-by: Akinobu Mita <[email protected]> Suggested-by: Alexandre Belloni <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: pxa: fix Kconfig indentationAlexandre Belloni1-4/+4
The pxa section is indented using spaces, use tabs. Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: enable COMPILE_TESTAlexandre Belloni1-23/+23
There are several arch-specific RTC drivers that can be successfully compiled on other platforms. Add a COMPILE_TEST dependency for those. Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]>
2016-03-14rtc: always show I2CAlexandre Belloni1-1/+0
Always show there is an I2C section, like the other sections. Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: max77686: Add support for MAX20024/MAX77620 RTC IPLaxman Dewangan1-2/+2
Maxim Semiconductor's PMIC MAX77686 has RTC IP which is reused in the MAX77620/MAX20024 PMICs. Add support for these devices in MAX77686 RTC driver. This device does not have RTC alarm pending status outside of RTC IP. The RTC IP is having separate I2C address for its register access. Signed-off-by: Laxman Dewangan <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: rv3029: reword Kconfig optionAlexandre Belloni1-2/+2
The Kconfig option for rv3029 is not mentioning any part number, explicitly show rv3029. Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: Group Kconfig entries by vendorSoren Brinkmann1-44/+44
The RTC entries are mostly grouped by vendor. Move the few outliers in place. Also, change the one occurrence of 'nxp' to 'NXP' to make all NXP entries consistent. Signed-off-by: Soren Brinkmann <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: pic32: Add PIC32 real time clock driverJoshua Henderson1-0/+10
This driver adds support for the PIC32 real time clock and calendar peripheral: - reading and setting time - alarms provided by dedicated IRQ Signed-off-by: Joshua Henderson <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
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