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2020-04-02rtc: sun6i: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni1-3/+3
Call the 64bit versions of rtc_tm time conversion. Tested-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Link: https://lore.kernel.org/r/20200330201226.860967-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-01rtc: ds1307: add support for watchdog timer on ds1388Chris Packham2-0/+116
The DS1388 variant has watchdog timer capabilities. When using a DS1388 and having enabled CONFIG_WATCHDOG_CORE register a watchdog device for the DS1388. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200330025500.6991-1-chris.packham@alliedtelesis.co.nz Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-01rtc: da9052: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni1-4/+2
Call the 64bit versions of rtc_tm time conversion. Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Link: https://lore.kernel.org/r/20200306073548.57579-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-01rtc: da9052: set rangeAlexandre Belloni1-0/+2
The da9052 is an rtc valid from 2000 to 2063 (max year is 63). Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Link: https://lore.kernel.org/r/20200306073548.57579-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-01rtc: da9052: convert to devm_rtc_allocate_deviceAlexandre Belloni1-3/+7
This allows further improvement of the driver. Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Link: https://lore.kernel.org/r/20200329224240.776568-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-29rtc: imx-sc: Align imx sc msg structs to 4Leonard Crestez1-1/+1
The imx SC api strongly assumes that messages are composed out of 4-bytes words but some of our message structs have odd sizeofs. This produces many oopses with CONFIG_KASAN=y. Fix by marking with __aligned(4). Fixes: a3094fc1a15e ("rtc: imx-sc: add rtc alarm support") Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lore.kernel.org/r/13404bac8360852d86c61fad5ae5f0c91ffc4cb6.1582216144.git.leonard.crestez@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-29rtc: fsl-ftm-alarm: report alarm to coreBiwen Li1-0/+2
Report interrupt state to the RTC core. Signed-off-by: Biwen Li <biwen.li@nxp.com> Link: https://lore.kernel.org/r/20200327084457.45161-1-biwen.li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-26rtc: pcf85063: Add pcf85063 clkout control to common clock frameworkMichael McCormick1-0/+157
The PCF85063 has a configurable clock output signal. Add support for it using in the CCF. Signed-off-by: Michael McCormick <michael.mccormick@enatel.net> Link: https://lore.kernel.org/r/20200124015239.24662-1-michael.mccormick@enatel.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-26rtc: make definitions in include/uapi/linux/rtc.h actually useful for user spaceEugene Syromiatnikov1-4/+7
BIT() macro is not defined in UAPI headers; there is, however, similarly defined _BITUL() macro present in include/uapi/linux/const.h; use it instead and include <linux/const.h> and <linux/ioctl.h> in order to make the definitions provided in the header useful. Fixes: 3431ca4837bf ("rtc: define RTC_VL_READ values") Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com> Link: https://lore.kernel.org/r/20200324041209.GA30727@asgard.redhat.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-24rtc: class: avoid unnecessary lookup in hctosysAlexandre Belloni1-14/+2
rtc_hctosys is only called when the relevant RTC is found, avoid looking it up while we already have a pinter to the proper struct rtc_device. Link: https://lore.kernel.org/r/20200323213039.297458-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-24dt-bindings: rtc: Convert and update jz4740-rtc doc to YAMLPaul Cercueil2-37/+83
Convert the jz4740-rtc doc to YAML, and update it to reflect the new changes in the driver: - More compatible strings are specified, with fallbacks if needed, - The vendor-specific properties are now properly prefixed with the 'ingenic,' prefix. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200311182318.22154-3-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-24rtc: jz4740: Rename vendor-specific DT propertiesPaul Cercueil1-2/+3
These properties are never set anywhere within any of the upstream devicetree files, so I assume I'm not breaking the ABI with this change. Rename vendor-specific DT properties to have the 'ingenic,' prefix, which they should have had from the start. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200311182318.22154-2-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-24rtc: jz4740: Add support for JZ4760 SoCPaul Cercueil1-1/+3
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 Muckle4-73/+61
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1-0/+11
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-König1-1/+0
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 Patel1-3/+1
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 Labbe1-0/+1
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 Ma1-6/+15
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 Huang1-27/+19
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 Packham1-0/+9
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>
2020-03-17rtc: mt2712: fix build without PM_SLEEPAlexandre Belloni1-0/+2
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 Belloni1-10/+1
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 Belloni1-4/+4
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 Belloni1-40/+1
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 Belloni1-0/+1
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 Belloni1-17/+1
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 Belloni1-13/+0
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 Belloni1-6/+8
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 Huang1-14/+13
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>
2020-03-16MAINTAINERS: add MT2712 RTC filesRan Bi1-0/+2
This patch add MT2712 RTC related files to MAINTAINERS file. Signed-off-by: Ran Bi <ran.bi@mediatek.com> Link: https://lore.kernel.org/r/20200226051303.22560-5-ran.bi@mediatek.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: add support for the MediaTek MT2712 RTCRan Bi3-0/+432
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>