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2020-03-24rtc: jz4740: Add support for JZ4760 SoCPaul Cercueil
The WENR feature (set a magic value to enable RTC registers read-write) first appeared on the JZ4760; the JZ4780 came much later. Since it would be dangerous to specify a newer SoC's compatible string as the fallback of an older SoC's compatible string, we add support for the "ingenic,jz4760-rtc" compatible string in the driver. This will permit to support the JZ4770 by having: compatible = "ingenic,jz4770-rtc", "ingenic,jz4760-rtc"; Instead of doing: compatible = "ingenic,jz4770-rtc", "ingenic,jz4780-rtc"; Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200311182318.22154-1-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-23rtc: class: support hctosys from modular RTC driversSteve Muckle
Due to distribution constraints it may not be possible to statically compile the required RTC driver into the kernel. Expand RTC_HCTOSYS support to cover all RTC devices (statically compiled or not) by checking at the end of RTC device registration whether the time should be synced. Signed-off-by: Steve Muckle <smuckle@google.com> Link: https://lore.kernel.org/r/20191106194625.116692-1-smuckle@google.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-23rtc: pm8xxx: clear alarm register when alarm is not enabled韩科才
Clear alarm register when alarm is not enabled otherwise the consumer may still start alarm timer if it find the alarm register is not zero. Signed-off-by: hankecai <hankecai@vivo.com> Link: https://lore.kernel.org/r/APoAZgAaCEiRpKG6PlzreaqE.1.1584791417367.Hmail.hankecai@vivo.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-23rtc: omap: drop unused dt-bindings headerUwe Kleine-König
The definitons in the dt-binding's gpio header only contains some constants to be used in device trees. It is not relevant for rtc-omap (as the gpio API hides the details) and in fact unused so it can just be dropped. Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Link: https://lore.kernel.org/r/20200321203737.29850-1-uwe@kleine-koenig.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-23rtc: bd70528: Avoid double error messaging when IRQ absentKeyur Patel
Since the commit 7723f4c ("driver core: platform: Add an error message to platform_get_irq*()") platform_get_irq() started issuing an error message. Thus, there is no need to have the same in the driver. Signed-off-by: Keyur Patel <iamkeyur96@gmail.com> Link: https://lore.kernel.org/r/20200321180838.12729-1-iamkeyur96@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-23rtc: max8907: add missing select REGMAP_IRQCorentin Labbe
I have hit the following build error: armv7a-hardfloat-linux-gnueabi-ld: drivers/rtc/rtc-max8907.o: in function `max8907_rtc_probe': rtc-max8907.c:(.text+0x400): undefined reference to `regmap_irq_get_virq' max8907 should select REGMAP_IRQ Fixes: 94c01ab6d7544 ("rtc: add MAX8907 RTC driver") Cc: stable <stable@vger.kernel.org> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1584545209-20433-1-git-send-email-clabbe@baylibre.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-23rtc: fsl-ftm-alarm: enable acpi supportPeng Ma
This patch enables ACPI support in Rtc Flex timer driver. Signed-off-by: Peng Ma <peng.ma@nxp.com> Link: https://lore.kernel.org/r/20200318025354.6447-1-peng.ma@nxp.com Link: https://lore.kernel.org/r/20200323072956.38263-1-peng.ma@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-22rtc: mxc: Use devm_add_action_or_reset() for calls to clk_disable_unprepare()Anson Huang
Use devm_add_action_or_reset() for calls to clk_disable_unprepare(), which can simplify the error handling, and .remove callback can be dropped. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1584349785-27042-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-22rtc: ds1307: handle oscillator failure flags for ds1388 variantChris Packham
The FLAG register is at a different location to the other supported RTCs so this requires an extra case in the existing switch statement. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Link: https://lore.kernel.org/r/20200207031812.14424-2-chris.packham@alliedtelesis.co.nz Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-19rtc: max8907: add missing select REGMAP_IRQCorentin Labbe
I have hit the following build error: armv7a-hardfloat-linux-gnueabi-ld: drivers/rtc/rtc-max8907.o: in function `max8907_rtc_probe': rtc-max8907.c:(.text+0x400): undefined reference to `regmap_irq_get_virq' max8907 should select REGMAP_IRQ Fixes: 94c01ab6d7544 ("rtc: add MAX8907 RTC driver") Cc: stable <stable@vger.kernel.org> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-17rtc: cmos: remove useless cast for driver_nameCorentin Labbe
Now the pnp_driver name is "const char *", there are no need to cast driver_name. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-03-17rtc: mt2712: fix build without PM_SLEEPAlexandre Belloni
Fix this build error when PM_SLEEP is not selected: drivers/rtc/rtc-mt2712.c:412:10: error: ‘mt2712_pm_ops’ undeclared here (not in a function); did you mean ‘mt2712_rtc_ops’? 412 | .pm = &mt2712_pm_ops, | ^~~~~~~~~~~~~ Link: https://lore.kernel.org/r/20200317143421.9551-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: 88pm860x: remove platform data supportAlexandre Belloni
There is no users of the rtc platform data left, remove its support. Link: https://lore.kernel.org/r/20200316102537.180398-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: 88pm860x: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200311223956.51352-6-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: 88pm860x: stop mangling alarm timeAlexandre Belloni
The RTC core always passes a valid alarm time there is no need to modify it. Link: https://lore.kernel.org/r/20200311223956.51352-5-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: 88pm860x: set rangeAlexandre Belloni
The 88pm860x RTC is a 32bit read only seconds counter with a 32bit offset. Link: https://lore.kernel.org/r/20200311223956.51352-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: 88pm860x: stop calling unused callbackAlexandre Belloni
pdata->sync is not defined by any platform, stop calling it. Link: https://lore.kernel.org/r/20200311223956.51352-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: 88pm860x: stop setting a default timeAlexandre Belloni
It doesn't make sense to set the RTC to a default value at probe time. Let the core handle invalid date and time. Link: https://lore.kernel.org/r/20200311223956.51352-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: 88pm860x: fix possible race conditionAlexandre Belloni
The RTC IRQ is requested before the struct rtc_device is allocated, this may lead to a NULL pointer dereference in the IRQ handler. To fix this issue, allocating the rtc_device struct before requesting the RTC IRQ using devm_rtc_allocate_device, and use rtc_register_device to register the RTC device. Also remove the unnecessary error message as the core already prints the info. Link: https://lore.kernel.org/r/20200311223956.51352-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: snvs: Use devm_add_action_or_reset() for calls to clk_disable_unprepare()Anson Huang
Use devm_add_action_or_reset() for calls to clk_disable_unprepare(), which can simplify the error handling. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1584109849-21402-1-git-send-email-Anson.Huang@nxp.com Link: https://lore.kernel.org/r/1584233264-26025-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: add support for the MediaTek MT2712 RTCRan Bi
This add support for the MediaTek MT2712 RTC. It was SoC based RTC, but had different architecture compared with MT7622 RTC. Signed-off-by: Ran Bi <ran.bi@mediatek.com> Link: https://lore.kernel.org/r/20200226051303.22560-3-ran.bi@mediatek.com Link: https://lore.kernel.org/r/20200316104701.209293-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: m48t35: remove SGI-IP27 kludgeThomas Bogendoerfer
With the IOC3 MFD driver it's no longer necessary to special case SGI-IP27. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Link: https://lore.kernel.org/r/20200309123514.15543-1-tsbogend@alpha.franken.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: sun6i: Make external 32k oscillator optionalJernej Skrabec
Some boards, like OrangePi PC2 (H5), OrangePi Plus 2E (H3) and Tanix TX6 (H6) don't have external 32kHz oscillator. Till H6, it didn't really matter if external oscillator was enabled because HW detected error and fall back to internal one. H6 has same functionality but it's the first SoC which have "auto switch bypass" bit documented and always enabled in driver. This prevents RTC to work correctly if external crystal is not present on board. There are other side effects - all peripherals which depends on this clock also don't work (HDMI CEC for example). Make clocks property optional. If it is present, select external oscillator. If not, stay on internal. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20200308135849.106333-2-jernej.skrabec@siol.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: puv3: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306010240.40056-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: puv3: set rangeAlexandre Belloni
This RTC is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306010240.40056-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: ab8500: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200306010101.39517-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: pl031: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion to allow extending support after 2106 and properly supporting the STv2 range. Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200306005809.38530-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: pl031: set rangeAlexandre Belloni
The PL031 and ST v1 RTC are 32bit seconds counters. STv2 is a BCD RTC apparently going from 0000 to 9999, hopefully handling the leap days properly until then. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200306005809.38530-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: pl031: remove useless invalid alarm handlingAlexandre Belloni
The core will never pass an invalid alarm to .set_alarm, it is not necessary to check for its validity. Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200306005809.38530-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: fsl-ftm-alarm: allow COMPILE_TESTAlexandre Belloni
Allow building building the driver with COMPILE_TEST. Link: https://lore.kernel.org/r/20200306131629.18837-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: mpc5121: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306074404.58909-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: mpc5121: set rangeAlexandre Belloni
The datasheet states that 4052 is the maximum value for year. However, the mpc5121 read_time and set_time function abuse the target time register instead of using the broken down time so it is limited to 2106. Link: https://lore.kernel.org/r/20200306074404.58909-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: mpc5121: convert to devm_rtc_allocate_deviceAlexandre Belloni
This simplifies the path for the rtc_ops selection. Link: https://lore.kernel.org/r/20200306074404.58909-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: mpc5121: simplify probeAlexandre Belloni
Use devm managed function to simplify probe and remove. Link: https://lore.kernel.org/r/20200306074404.58909-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: pm8xxx: stop validating valid alarm timeAlexandre Belloni
rtc_time64_to_tm never generates an invalid rtc_tm, stop validating it. Link: https://lore.kernel.org/r/20200306073758.58050-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: pm8xxx: : switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306073758.58050-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: pm8xxx: set rangeAlexandre Belloni
The pm8xxx are 32bit seconds counter. Link: https://lore.kernel.org/r/20200306073758.58050-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: pm8xxx: convert to devm_rtc_allocate_deviceAlexandre Belloni
This allows further improvement of the driver. Also remove the unnecessary error string as the core will already display error messages. Link: https://lore.kernel.org/r/20200306073758.58050-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: ds1305: switch to rtc_tm_to_time64Alexandre Belloni
Call the 64bit version of rtc_tm to time conversion. Link: https://lore.kernel.org/r/20200306073459.57197-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: ds1305: set rangeAlexandre Belloni
The ds1305 is a BCD rtc valid from 2000 to 2099. Link: https://lore.kernel.org/r/20200306073459.57197-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: ds1374: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306073404.56921-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: ds1374: set rangeAlexandre Belloni
The ds1374 is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306073404.56921-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: ds1374: fix possible race conditionAlexandre Belloni
The RTC IRQ is requested before the struct rtc_device is allocated, this may lead to a NULL pointer dereference in the IRQ handler. To fix this issue, allocating the rtc_device struct before requesting the RTC IRQ using devm_rtc_allocate_device, and use rtc_register_device to register the RTC device. Link: https://lore.kernel.org/r/20200306073404.56921-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: cpcap: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306015703.42101-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: cpcap: set rangeAlexandre Belloni
The CPCAP rtc is a 14bit day counter plus a 17bit seconds counter. Note that this failed on Nov 10 2014 so it is very likely this driver as never been used since. Link: https://lore.kernel.org/r/20200306015703.42101-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: cpcap: convert to devm_rtc_allocate_deviceAlexandre Belloni
This allows further improvement of the driver. Link: https://lore.kernel.org/r/20200306015703.42101-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: sa1100: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306010146.39762-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: sa1100: set rangeAlexandre Belloni
The SA1100 RTC is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306010146.39762-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: sa1100: fix possible race conditionAlexandre Belloni
Both RTC IRQs are requested before the struct rtc_device is allocated, this may lead to a NULL pointer dereference in the IRQ handler. To fix this issue, allocating the rtc_device struct before requesting the IRQs using devm_rtc_allocate_device, and use rtc_register_device to register the RTC device. Link: https://lore.kernel.org/r/20200306010146.39762-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: au1xxx: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306005958.39203-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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