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2020-08-12Merge tag 'rtc-5.9' of ↵Linus Torvalds13-214/+242
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Not much this cycle - mostly non urgent driver fixes: - ds1374: use watchdog core - pcf2127: add alarm and pcf2129 support" * tag 'rtc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: rtc: pcf2127: fix alarm handling rtc: pcf2127: add alarm support rtc: pcf2127: add pca2129 device id rtc: max77686: Fix wake-ups for max77620 rtc: ds1307: provide an indication that the watchdog has fired rtc: ds1374: remove unused define rtc: ds1374: fix RTC_DRV_DS1374_WDT dependencies rtc: cleanup obsolete comment about struct rtc_class_ops rtc: pl031: fix set_alarm by adding back call to alarm_irq_enable rtc: ds1374: wdt: Use watchdog core for watchdog part rtc: Replace HTTP links with HTTPS ones rtc: goldfish: Enable interrupt in set_alarm() when necessary rtc: max77686: Do not allow interrupt to fire before system resume rtc: imxdi: fix trivial typos rtc: cpcap: fix range
2020-08-12rtc: pcf2127: fix alarm handlingAlexandre Belloni1-18/+19
Fix multiple issues when handling alarms: - Use threaded interrupt to avoid scheduling when atomic - Stop matching on week day as it may not be set correctly - Avoid parsing the DT interrupt and use what is provided by the i2c or spi subsystem - Avoid returning IRQ_NONE in case of error in the interrupt handler - Never write WDTF as specified in the datasheet - Set uie_unsupported, as for the pcf85063, setting alarms every seconds is not working correctly and confuses the RTC. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200812085114.474903-1-alexandre.belloni@bootlin.com
2020-08-12rtc: pcf2127: add alarm supportLiam Beguin1-0/+134
Add alarm support for the pcf2127 RTC chip family. Tested on pca2129. Signed-off-by: Liam Beguin <lvb@xiphos.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20200630024211.12782-3-liambeguin@gmail.com
2020-08-12rtc: pcf2127: add pca2129 device idLiam Beguin1-0/+3
The PCA2129 is the automotive grade version of the PCF2129. add it to the list of compatibles. Signed-off-by: Liam Beguin <lvb@xiphos.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20200630024211.12782-2-liambeguin@gmail.com
2020-08-07rtc: max77686: Fix wake-ups for max77620Jon Hunter1-4/+7
Following commit d8f090dbeafd ("rtc: max77686: Do not allow interrupt to fire before system resume"), RTC wake-ups stopped working on Jetson TX2 and Jetson Xavier platforms. The Jetson TX2 uses the max77620 PMIC and the Jetson Xavier uses max20024 PMIC. Both of these PMICs have the same max77620 RTC controller. For the max77620 RTC, the variable 'rtc_irq_from_platform' is defined as true in the max77686 driver and because of this the IRQ passed to the max77686 driver for RTC is the PMIC IRQ and not the parent. Hence, following commit d8f090dbeafd ("rtc: max77686: Do not allow interrupt to fire before system resume"), for the max77620 the RTC IRQ within the PMIC is now getting disabled on entry to suspend and unable to wake the system up. Fix this by only disabling interrupts on entry to suspend in the max77686 RTC driver, if the interrupt is the parent interrupt. Fixes: d8f090dbeafd ("rtc: max77686: Do not allow interrupt to fire before system resume") Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Tested-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200806125431.699339-1-jonathanh@nvidia.com
2020-08-05rtc: ds1307: provide an indication that the watchdog has firedChris Packham1-0/+6
There's not much feedback when the ds1388 watchdog fires. Generally it yanks on the reset line and the board reboots. Capture the fact that the watchdog has fired in the past so that userspace can retrieve it via WDIOC_GETBOOTSTATUS. This should help distinguish a watchdog triggered reset from a power interruption. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200727034615.19755-1-chris.packham@alliedtelesis.co.nz
2020-07-21rtc: ds1374: remove unused defineAlexandre Belloni1-3/+1
Remove unused define and fix typo where it should have been used. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200720075250.1019172-2-alexandre.belloni@bootlin.com
2020-07-21rtc: ds1374: fix RTC_DRV_DS1374_WDT dependenciesAlexandre Belloni1-2/+2
It is not enough to select WATCHDOG_CORE, the watchdog part of the driver now also depends on WATCHDOG. This is currently the best we can do because alarm support and watchdog support are mutually exclusive. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Link: https://lore.kernel.org/r/20200720075250.1019172-1-alexandre.belloni@bootlin.com
2020-07-16rtc: pl031: fix set_alarm by adding back call to alarm_irq_enableSudeep Holla1-0/+1
Commit c8ff5841a90b ("rtc: pl031: switch to rtc_time64_to_tm/rtc_tm_to_time64") seemed to have accidentally removed the call to pl031_alarm_irq_enable from pl031_set_alarm while switching to 64-bit apis. Let us add back the same to get the set alarm functionality back. Fixes: c8ff5841a90b ("rtc: pl031: switch to rtc_time64_to_tm/rtc_tm_to_time64") Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Tested-by: Valentin Schneider <valentin.schneider@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200714124556.20294-1-sudeep.holla@arm.com
2020-07-16rtc: ds1374: wdt: Use watchdog core for watchdog partJohnson CH Chen (陳昭勳)2-197/+62
Let ds1374 watchdog use watchdog core functions. It also includes improving watchdog timer setting and nowayout, and just uses ioctl() of watchdog core. Signed-off-by: Johnson Chen <johnsonch.chen@moxa.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/HK2PR01MB328182D5A54BFAA8A22E448AFA640@HK2PR01MB3281.apcprd01.prod.exchangelabs.com
2020-07-16rtc: Replace HTTP links with HTTPS onesAlexander A. Klimov4-5/+5
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200706062727.18481-1-grandmaster@al2klimov.de
2020-07-16rtc: goldfish: Enable interrupt in set_alarm() when necessaryHuacai Chen1-0/+1
When use goldfish rtc, the "hwclock" command fails with "select() to /dev/rtc to wait for clock tick timed out". This is because "hwclock" need the set_alarm() hook to enable interrupt when alrm->enabled is true. This operation is missing in goldfish rtc (but other rtc drivers, such as cmos rtc, enable interrupt here), so add it. Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/1592654683-31314-1-git-send-email-chenhc@lemote.com
2020-07-16rtc: max77686: Do not allow interrupt to fire before system resumeKrzysztof Kozlowski1-2/+18
The rtc-max77686 device shares the main interrupt line with parent MFD device (max77686 driver). During the system suspend, the parent MFD device disables this IRQ to prevent an early event happening before resuming I2C bus controller. The same should be done by rtc-max77686 driver because otherwise the interrupt handler max77686_rtc_alarm_irq() will be called before its resume function (max77686_rtc_resume()). Such issue is not fatal but disabling shared IRQ by all users ensures correct behavior. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200615161455.4420-1-krzk@kernel.org
2020-07-02rtc: imxdi: fix trivial typosTales L. da Aparecida1-2/+2
Fix typos 'pionter' -> 'pointer' and 'softwere' -> 'software' Signed-off-by: Tales L. da Aparecida <tales.aparecida@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200624012119.54768-1-tales.aparecida@gmail.com
2020-07-02rtc: cpcap: fix rangeSebastian Reichel1-1/+1
Unbreak CPCAP driver, which has one more bit in the day counter increasing the max. range from 2014 to 2058. The original commit introducing the range limit was obviously wrong, since the driver has only been written in 2017 (3 years after 14 bits would have run out). Fixes: d2377f8cc5a7 ("rtc: cpcap: set range") Reported-by: Sicelo A. Mhlongo <absicsz@gmail.com> Reported-by: Dev Null <devnull@uvos.xyz> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Tested-by: Merlijn Wajer <merlijn@wizzup.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Merlijn Wajer <merlijn@wizzup.org> Link: https://lore.kernel.org/r/20200629114123.27956-1-sebastian.reichel@collabora.com
2020-07-01rtc: remove fb-puv3 driverMike Rapoport3-296/+0
The unicore32 port is removed from the kernel. There is no point to keep stale RTC driver for this architecture. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Guenter Roeck <linux@roeck-us.net>
2020-06-07Merge tag 'rtc-5.8' of ↵Linus Torvalds16-149/+255
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Not much this cycle apart from the ingenic rtc driver rework. The fixes are mainly minor issues reported by coccinelle rather than real world issues. Subsystem: - new VL flag for backup switch over Drivers: - ingenic: only support device tree - pcf2127: report battery switch over, handle nowayout" * tag 'rtc-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (29 commits) rtc: pcf2127: watchdog: handle nowayout feature rtc: fsl-ftm-alarm: fix freeze(s2idle) failed to wake rtc: abx80x: Provide debug feedback for invalid dt properties rtc: abx80x: Add Device Tree matching table rtc: rv3028: Add missed check for devm_regmap_init_i2c() rtc: mpc5121: Use correct return value for mpc5121_rtc_probe() rtc: goldfish: Use correct return value for goldfish_rtc_probe() rtc: snvs: Add necessary clock operations for RTC APIs rtc: snvs: Make SNVS clock always prepared rtc: ingenic: Reset regulator register in probe rtc: ingenic: Fix masking of error code rtc: ingenic: Remove unused fields from private structure rtc: ingenic: Set wakeup params in probe rtc: ingenic: Enable clock in probe rtc: ingenic: Use local 'dev' variable in probe rtc: ingenic: Only support probing from devicetree rtc: mc13xxx: fix a double-unlock issue rtc: stmp3xxx: update contact email rtc: max77686: Use single-byte writes on MAX77620 rtc: pcf2127: report battery switch over ...
2020-06-06Merge tag 'sh-for-5.8' of git://git.libc.org/linux-shLinus Torvalds1-1/+1
Pull arch/sh updates from Rich Felker: "Fix for arch/sh build regression with newer binutils, removal of SH5, fixes for module exports, and misc cleanup" * tag 'sh-for-5.8' of git://git.libc.org/linux-sh: sh: remove sh5 support sh: add missing EXPORT_SYMBOL() for __delay sh: Convert ins[bwl]/outs[bwl] macros to inline functions sh: Convert iounmap() macros to inline functions sh: Add missing DECLARE_EXPORT() for __ashiftrt_r4_xx sh: configs: Cleanup old Kconfig IO scheduler options arch/sh: vmlinux.scr sh: Replace CONFIG_MTD_M25P80 with CONFIG_MTD_SPI_NOR in sh7757lcr_defconfig sh: sh4a: Bring back tmu3_device early device
2020-06-06rtc: pcf2127: watchdog: handle nowayout featureBruno Thomsen1-0/+1
Driver does not use module parameter for nowayout, so it need to statically initialize status variable of the watchdog_device based on CONFIG_WATCHDOG_NOWAYOUT. Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200604162602.76524-1-bruno.thomsen@gmail.com
2020-06-06rtc: fsl-ftm-alarm: fix freeze(s2idle) failed to wakeRan Wang1-1/+5
Use dev_pm_set_wake_irq() instead of flag IRQF_NO_SUSPEND to enable wakeup system feature for both freeze(s2idle) and mem(deep). Signed-off-by: Ran Wang <ran.wang_1@nxp.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200601071914.36444-1-ran.wang_1@nxp.com
2020-06-06rtc: abx80x: Provide debug feedback for invalid dt propertiesKevin P. Fleming1-6/+11
When the user provides an invalid value for tc-diode or tc-resistor generate a debug message instead of silently ignoring it. Signed-off-by: Kevin P. Fleming <kevin+linux@km6g.us> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200530122956.360689-1-kevin+linux@km6g.us
2020-06-01sh: remove sh5 supportArnd Bergmann1-1/+1
sh5 never became a product and has probably never really worked. Remove it by recursively deleting all associated Kconfig options and all corresponding files. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rich Felker <dalias@libc.org>
2020-05-30rtc: abx80x: Add Device Tree matching tableKevin P. Fleming1-0/+49
Enable automatic loading of the module when a Device Tree overlay specifies a device supported by this driver. Signed-off-by: Kevin P. Fleming <kevin+linux@km6g.us> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200528114617.166587-1-kevin+linux@km6g.us
2020-05-30rtc: rv3028: Add missed check for devm_regmap_init_i2c()Chuhong Yuan1-0/+2
rv3028_probe() misses a check for devm_regmap_init_i2c(). Add the missed check to fix it. Fixes: e6e7376cfd7b ("rtc: rv3028: add new driver") Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200528103950.912353-1-hslester96@gmail.com
2020-05-30rtc: mpc5121: Use correct return value for mpc5121_rtc_probe()Tiezhu Yang1-1/+1
When call function devm_platform_ioremap_resource(), we should use IS_ERR() to check the return value and return PTR_ERR() if failed. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/1590370788-15136-2-git-send-email-yangtiezhu@loongson.cn
2020-05-30rtc: goldfish: Use correct return value for goldfish_rtc_probe()Tiezhu Yang1-1/+1
When call function devm_platform_ioremap_resource(), we should use IS_ERR() to check the return value and return PTR_ERR() if failed. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/1590370788-15136-1-git-send-email-yangtiezhu@loongson.cn
2020-05-30rtc: snvs: Add necessary clock operations for RTC APIsAnson Huang1-2/+53
There could be still RTC registers access after RTC suspend with clock disabled, need to add clock operations for each RTC API to make sure accessing RTC registers is successfully. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/1590113996-31845-2-git-send-email-Anson.Huang@nxp.com
2020-05-30rtc: snvs: Make SNVS clock always preparedAnson Huang1-2/+2
In IRQ handler, ONLY clock enable/disable is called due to clock prepare can NOT be called in interrupt context, but clock enable/disable will return failure if prepare count is 0, to fix this issue, just make SNVS clock always prepared there, the SNVS clock has no prepare function implemented, so it won't impact anything. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/1590113996-31845-1-git-send-email-Anson.Huang@nxp.com
2020-05-21rtc: mt6397: Add support for the MediaTek MT6358 RTCRan Bi1-3/+15
This add support for the MediaTek MT6358 RTC. Driver using compatible data to store different RTC_WRTGR address offset. This replace RTC_WRTGR to RTC_WRTGR_MT6323 in mt6323-poweroff driver which only needed by armv7 CPU without ATF. Signed-off-by: Ran Bi <ran.bi@mediatek.com> Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Sebastian Reichel <sre@kernel.org> Reviewed-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-05-11rtc: ingenic: Reset regulator register in probePaul Cercueil1-0/+3
The regulator register specifies how many input clock cycles (minus one) are contained in one tick of the 1 Hz clock. Since this register can contain bogus values after the system boots, it needs to be reset in the probe register, otherwise the RTC may count way to slow or way too fast. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200505221336.222313-7-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: ingenic: Fix masking of error codePaul Cercueil1-1/+1
The code was returning -ENOENT on any error of platform_get_irq(), even if it returned a different error. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200505221336.222313-6-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: ingenic: Remove unused fields from private structurePaul Cercueil1-14/+12
The 'clk' and 'irq' fields were only ever used in the probe function. Therefore they can be moved to be simple local variables of the probe function. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200505221336.222313-5-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: ingenic: Set wakeup params in probePaul Cercueil1-51/+44
We can write the wakeup timing parameters as soon as the driver probes, there's no need to wait the very last moment. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200505221336.222313-4-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: ingenic: Enable clock in probePaul Cercueil1-2/+17
It makes no sense to request a clock and not enable it even though the hardware is being used. So the driver now enables the clock in the probe. Besides, now we can properly handle errors. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200505221336.222313-3-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: ingenic: Use local 'dev' variable in probePaul Cercueil1-15/+15
Clean a bit the probe function by adding a local struct device *dev variable. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200505221336.222313-2-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: ingenic: Only support probing from devicetreePaul Cercueil2-17/+4
With the recent work on supporting Device Tree on Ingenic SoCs, no driver ever probes from platform code anymore, so we can clean a bit this driver by removing the non-devicetree paths. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20200505221336.222313-1-paul@crapouillou.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: mc13xxx: fix a double-unlock issueQiushi Wu1-1/+3
In function mc13xxx_rtc_probe, the mc13xxx_unlock() is called before rtc_register_device(). But in the error path of rtc_register_device(), the mc13xxx_unlock() is called again, which causes a double-unlock problem. Thus add a call of the function “mc13xxx_lock” in an if branch for the completion of the exception handling. Fixes: e4ae7023e182a ("rtc: mc13xxx: set range") Signed-off-by: Qiushi Wu <wu000273@umn.edu> Link: https://lore.kernel.org/r/20200503182235.1652-1-wu000273@umn.edu Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: stmp3xxx: update contact emailWolfram Sang1-1/+1
The 'pengutronix' address is defunct for years. Use the proper contact address. Signed-off-by: Wolfram Sang <wsa@kernel.org> Link: https://lore.kernel.org/r/20200502142704.19308-1-wsa@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: max77686: Use single-byte writes on MAX77620Thierry Reding1-6/+16
The MAX77620 doesn't support bulk writes, so make sure the regmap code breaks bulk writes into multiple single-byte writes. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20200417170825.2551367-3-thierry.reding@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: pcf2127: report battery switch overAlexandre Belloni1-4/+12
Add support for the RTC_VL_BACKUP_SWITCH flag to report battery switch over events. Link: https://lore.kernel.org/r/20200511140335.799133-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: pcf2127: set regmap max_registerAlexandre Belloni1-0/+2
Set regmap max_register to ease debugging and enforce the register range. Link: https://lore.kernel.org/r/20200505201310.255145-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: pcf2127: remove unnecessary #ifdefAlexandre Belloni1-4/+0
There is not point in setting .ioctl to NULL when CONFIG_RTC_INTF_DEV is not defined because it would not be called anyway. Link: https://lore.kernel.org/r/20200505201310.255145-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-05-11rtc: pcf2127: let the core handle rtc rangeAlexandre Belloni1-3/+5
Let the core handle offsetting and windowing the RTC range. Link: https://lore.kernel.org/r/20200505201310.255145-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-18rtc: 88pm860x: remove useless range checkAlexandre Belloni1-6/+0
Because the core is now checking the RTC range, it is unnecessary to check it again in .set_time/ Link: https://lore.kernel.org/r/20200415200226.157361-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-18rtc: mt2712: switch to devm_platform_ioremap_resourceAlexandre Belloni1-3/+1
Using devm_platform_ioremap_resource instead of open coding it reduces the size of the binary. text data bss dec hex filename 3728 216 0 3944 f68 drivers/rtc/rtc-mt2712.o 3744 216 0 3960 f78 drivers/rtc/rtc-mt2712.o.old Link: https://lore.kernel.org/r/20200415200021.157118-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-18rtc: mt2712: remove unnecessary error stringAlexandre Belloni1-7/+1
Remove the unnecessary error string as the core will already display error messages when registration fails (i.e. never). Link: https://lore.kernel.org/r/20200415200021.157118-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-15rtc: rc5t619: Fix an ERR_PTR vs NULL checkDan Carpenter1-3/+1
The devm_kzalloc() function returns NULL on error, it doesn't return error pointers so this check doesn't work. Fixes: 540d1e15393d ("rtc: rc5t619: Add Ricoh RC5T619 RTC driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20200407092852.GI68494@mwanda Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-15rtc: remove unnecessary error message after platform_get_irqMarkus Elfring3-9/+3
The function “platform_get_irq” can log an error already. Thus omit redundant messages for the exception handling in the calling functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Link: https://lore.kernel.org/r/04116352-b464-041c-1939-96440133aa6f@web.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-07Merge tag 'mfd-next-5.7' of ↵Linus Torvalds3-0/+455
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull mfd updates from Lee Jones: "New Drivers: - Add support for IQS620A/621/622/624/625 Azoteq IQS62X Sensors New Device Support: - Add support for ADC, IRQ, Regulator, RTC and WDT to Ricoh RN5T618 PMIC - Add support for Comet Lake to Intel LPSS New Functionality: - Add support for Charger Detection to Spreadtrum SC27xx PMICs - Add support for Interrupt Polarity to Dialog Semi DA9062/61 PMIC - Add ACPI enumeration support to Diolan DLN2 USB Adaptor Fix-ups: - Device Tree; iqs62x, rn5t618, cros_ec_dev, stm32-lptimer, rohm,bd71837, rohm,bd71847 - I2C registration; rn5t618 - Kconfig; MFD_CPCAP, AB8500_CORE, MFD_WM8994, MFD_WM97xx, MFD_STPMIC1 - Use flexible-array members; omap-usb-tll, qcom-pm8xxx - Remove unnecessary casts; omap-usb-host, omap-usb-tll - Power (suspend/resume/poweroff) enhancements; rk808 - Improve error/sanity checking; dln2 - Use snprintf(); aat2870-core Bug Fixes: - Fix PCI IDs in intel-lpss-pci" * tag 'mfd-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (33 commits) mfd: intel-lpss: Fix Intel Elkhart Lake LPSS I2C input clock mfd: aat2870: Use scnprintf() for avoiding potential buffer overflow mfd: dln2: Allow to be enumerated via ACPI mfd: da9062: Add support for interrupt polarity defined in device tree dt-bindings: bd718x7: Yamlify and add BD71850 mfd: dln2: Fix sanity checking for endpoints mfd: intel-lpss: Add Intel Comet Lake PCH-V PCI IDs mfd: sc27xx: Add USB charger type detection support dt-bindings: mfd: Document STM32 low power timer bindings mfd: rk808: Convert RK805 to shutdown/suspend hooks mfd: rk808: Reduce shutdown duplication mfd: rk808: Stop using syscore ops mfd: rk808: Ensure suspend/resume hooks always work mfd: rk808: Always use poweroff when requested mfd: omap: Remove useless cast for driver.name mfd: Kconfig: Fix some misspelling of the word functionality mfd: pm8xxx: Replace zero-length array with flexible-array member mfd: omap-usb-tll: Replace zero-length array with flexible-array member mfd: cpcap: Fix compile if MFD_CORE is not selected mfd: cros_ec: Check DT node for usbpd-notify add ...
2020-04-04Merge tag 'rtc-5.7' of ↵Linus Torvalds36-520/+1085
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "More cleanup this cycle, with the final goal of removing the rtc_time_to_tm and rtc_tm_to_time wrappers. All the drivers that have been modified for this now are ready for the end of times (whether it happens in 2033, 2038, 2106, 2127 or even 4052). There is also a single new driver and the usual fixes and features. Summary: Subsystem: - The rtc_time_to_tm and rtc_tm_to_time wrappers have finally been removed and only the 64bit version remain. - hctosys now works with drivers compiled as modules New driver: - MediaTek MT2712 SoC based RTC Drivers: - set range for 88pm860x, au1xxx, cpcap, da9052, davinci, ds1305, ds1374, mcp5121, pl030, pl031, pm8xxx, puv3, sa1100, sirfsoc, starfire, sun6i - ds1307: DS1388 oscillator failure detection and watchdog support - jz4740: JZ4760 support - pcf85063: clock out pin support - sun6i: external 32k oscillator is now optional, the range is now handled by the core, providing a solution for 2034" * tag 'rtc-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (87 commits) rtc: ds1307: check for failed memory allocation on wdt rtc: class: remove redundant assignment to variable err rtc: remove rtc_time_to_tm and rtc_tm_to_time rtc: sun6i: let the core handle rtc range rtc: sun6i: switch to rtc_time64_to_tm/rtc_tm_to_time64 rtc: ds1307: add support for watchdog timer on ds1388 rtc: da9052: switch to rtc_time64_to_tm/rtc_tm_to_time64 rtc: da9052: set range rtc: da9052: convert to devm_rtc_allocate_device rtc: imx-sc: Align imx sc msg structs to 4 rtc: fsl-ftm-alarm: report alarm to core rtc: pcf85063: Add pcf85063 clkout control to common clock framework rtc: make definitions in include/uapi/linux/rtc.h actually useful for user space rtc: class: avoid unnecessary lookup in hctosys dt-bindings: rtc: Convert and update jz4740-rtc doc to YAML rtc: jz4740: Rename vendor-specific DT properties rtc: jz4740: Add support for JZ4760 SoC rtc: class: support hctosys from modular RTC drivers rtc: pm8xxx: clear alarm register when alarm is not enabled rtc: omap: drop unused dt-bindings header ...
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