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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 <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <tony@atomide.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-02-27Merge tag 'rtc-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linuxLinus Torvalds1-3/+15
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 <alexandre.belloni@free-electrons.com>
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 <geert@linux-m68k.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> 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: stable@vger.kernel.org Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-01-13rtc: add STM32 RTC driverAmelie Delaunay1-0/+11
This patch adds support for the STM32 RTC. Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <akinobu.mita@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <Nicolae_Rosia@mentor.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-11-09rtc: fix typos in KconfigAlexandre Belloni1-2/+2
s/buillt/built/g Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <alexandre.belloni@free-electrons.com>
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 <krzk@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <paul@crapouillou.net> Acked-by: Maarten ter Huurne <maarten@treewalker.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <hch@lst.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-10-14Merge tag 'rtc-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linuxLinus Torvalds1-15/+23
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', '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-mergedLee Jones1-2/+12
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 <ravi23ganiga@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <m.niestroj@grinn-global.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <alexandre.belloni@free-electrons.com>
2016-08-31rtc: isl12057: remove driverAlexandre Belloni1-10/+0
The Intersil isl12057 is now supported by the ds1307 driver. Acked-by: Arnaud Ebalard <arno@natisbad.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <arno@natisbad.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <arno@natisbad.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <w.egorov@phytec.de> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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 <wens@csie.org> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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 <benoit@wsystem.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <arnd@arndb.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <arnd@arndb.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <venkat.prashanth2498@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <mylene.josserand@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <ynvich@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-15rtc: rv3029: stop mentioning rv3029c2Alexandre Belloni1-1/+1
rv3029c2 is actually rv3029. c2 denotes an option. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <akinobu.mita@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <m@bues.ch> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <akinobu.mita@gmail.com> Suggested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14rtc: pxa: fix Kconfig indentationAlexandre Belloni1-4/+4
The pxa section is indented using spaces, use tabs. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <alexandre.belloni@free-electrons.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
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 <alexandre.belloni@free-electrons.com>
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 <ldewangan@nvidia.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <alexandre.belloni@free-electrons.com>
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 <soren.brinkmann@xilinx.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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 <joshua.henderson@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14rtc: add Alphascale asm9260 driverOleksij Rempel1-0/+10
Add support for RTC controller found on Alphascale asm9260 SoC. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14rtc: allow compilation of sun6i RTC for all sunxi SoCsAndre Przywara1-3/+4
At the moment the "sun6i" RTC drivers depends on having two specific SoC families selected. The Allwinner A64 SoC has the same RTC, so extend the Kconfig option to allow inclusion of the driver for all Allwinner SoCs. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14rtc: add driver for RX6110SA real time clockSteffen Trumtrar1-0/+9
The RX6110 comes in two different variants: SPI and I2C. This driver only supports the SPI variant. If the need ever arises to also support the I2C variant, this driver could easily be refactored to support both cases. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-02-04rtc: ds1307: add temperature sensor support for ds3231Akinobu Mita1-0/+9
DS3231 has the temperature registers with a resolution of 0.25 degree celsius. This enables to get the value through hwmon. # cat /sys/class/i2c-adapter/i2c-2/2-0068/hwmon/hwmon0/temp1_input 21000 Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-02-04rtc: mt6397: add IRQ domain dependencyArnd Bergmann1-1/+1
The mt6397 RTC driver can be built either when the MFD_MT6397 driver is enabled (which selects IRQ_DOMAIN), or when compile testing. The latter however fails without IRQ domains: drivers/rtc/rtc-mt6397.c: In function 'mtk_rtc_probe': drivers/rtc/rtc-mt6397.c:326:13: error: implicit declaration of function 'irq_create_mapping' [-Werror=implicit-function-declaration] rtc->irq = irq_create_mapping(mt6397_chip->irq_domain, res->start); This adds an explicit dependency for the COMPILE_TEST case. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Eddie Huang <eddie.huang@mediatek.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-02-04rtc: Remove Maxim 77802 driverJavier Martinez Canillas1-10/+0
The max77686 RTC driver now supports the max77802 RTC as well so there's no need to have a separate driver anymore. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Andi Shyti <andi.shyti@samsung.com> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-01-11rtc: Add Epson RX8010SJ RTC driverAkshay Bhat1-0/+10
This driver supports the following functions: - reading and setting time - alarms when connected to an IRQ - reading and clearing the voltage low flags Datasheet: http://www.epsondevice.com/docs/qd/en/DownloadServlet?id=ID000956 Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-11-08rtc: Add a driver for Micro Crystal RV8803Alexandre Belloni1-0/+9
This driver supports the following functions: - reading and settings time - alarms when connected to an IRQ - reading and clearing the voltage low flags - nvram Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-11-08rtc: ds1390: Add trickle charger device tree bindingIvan Grimaldi1-2/+2
Introduce a device tree binding for specifying the trickle charger configuration for ds1390. Signed-off-by: Ivan Grimaldi <grimaldi.ivan@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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