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path: root/drivers/rtc
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2015-06-27Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2-2/+2
Pull MIPS updates from Ralf Baechle: - Improvements to the tlb_dump code - KVM fixes - Add support for appended DTB - Minor improvements to the R12000 support - Minor improvements to the R12000 support - Various platform improvments for BCM47xx - The usual pile of minor cleanups - A number of BPF fixes and improvments - Some improvments to the support for R3000 and DECstations - Some improvments to the ATH79 platform support - A major patchset for the JZ4740 SOC adding support for the CI20 platform - Add support for the Pistachio SOC - Minor BMIPS/BCM63xx platform support improvments. - Avoid "SYNC 0" as memory barrier when unlocking spinlocks - Add support for the XWR-1750 board. - Paul's __cpuinit/__cpuinitdata cleanups. - New Malta CPU board support large memory so enable ZONE_DMA32. * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits) MIPS: spinlock: Adjust arch_spin_lock back-off time MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA MIPS: BCM47xx: Simplify handling SPROM revisions MIPS: Cobalt Don't use module_init in non-modular MTD registration. MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/ MIPS: use for_each_sg() MIPS: BCM47xx: Don't select BCMA_HOST_PCI MIPS: BCM47xx: Add helper variable for storing NVRAM length MIPS: IRQ/IP27: Move IRQ allocation API to platform code. MIPS: Replace smp_mb with release barrier function in unlocks. MIPS: i8259: DT support MIPS: Malta: Basic DT plumbing MIPS: include errno.h for ENODEV in mips-cm.h MIPS: Define GCR_GIC_STATUS register fields MIPS: BPF: Introduce BPF ASM helpers MIPS: BPF: Use BPF register names to describe the ABI MIPS: BPF: Move register definition to the BPF header MIPS: net: BPF: Replace RSIZE with SZREG MIPS: BPF: Free up some callee-saved registers MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers ...
2015-06-26Merge tag 'rtc-v4.2-1' of ↵Linus Torvalds32-323/+1155
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Core: - Coding style and whitespace fixes (interface, Makefile and Kconfig) - New rtc_tm_sub() helper - New CONFIG_RTC_SYSTOHC_DEVICE option - Removed rtc_set_mmss() New drivers: - Mediatek MT6397 - Cortina Gemini Drivers: - Year 2106 fixes for isl1208, pcf8563 and sunxi - update author email for at32ap700x and efi - ds1307: alarm fix - efi: use correct EFI 'epoch' - hym8563: make irq optional - imxdi: cleanups and better handling of the security/tamper monitoring - snvs: fix wakealarm - Compilation fixes or warning removal for gemini, mt6397, palmas, pfc8563 - Trivial cleanups for ab8500, ds1216, ds1286, ds1672, ep93xx, hid-sensor-time, max6900, max8998, max77686, max77802, mc13xxx, mv, mxc, s3c, spear, v3020 - Kconfig fixes for stmp3xxx and xgene" * tag 'rtc-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (48 commits) rtc: remove useless I2C dependencies rtc: whitespace fixes rtc: Properly sort Makefile MAINTAINERS: Add RTC subsystem repository rtc: pfc8563: fix uninitialized variable warning rtc: ds1307: Enable the mcp794xx alarm after programming time rtc: hym8563: make the irq optional rtc: gemini: fix cocci warnings rtc: mv: correct 24 hour error message rtc: mv: use BIT() rtc: efi: use correct EFI 'epoch' rtc: interface: Remove rtc_set_mmss() sparc: time: Replace update_persistent_clock() with CONFIG_RTC_SYSTOHC rtc: NTP: Add CONFIG_RTC_SYSTOHC_DEVICE for NTP synchronization rtc: sunxi: Replace deprecated rtc_tm_to_time() rtc: isl1208: Replace deprecated rtc_tm_to_time() rtc: Introduce rtc_tm_sub() helper function rtc: pcf8563: Replace deprecated rtc_time_to_tm() and rtc_tm_to_time() rtc: palmas: Initialise bb_charging flag before using it rtc: simplify use of devm_ioremap_resource ...
2015-06-25rtc: remove useless I2C dependenciesAlexandre Belloni1-7/+3
Multiple options depend on I2C but are already under under if I2C. Remove those useless dependencies. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: whitespace fixesAlexandre Belloni2-30/+30
Some entries in the Kconfig are improperly indented with spaces instead of tabs. Also fix whitespaces in Makefile. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: Properly sort MakefileAlexandre Belloni1-17/+17
Properly sort the Makefile by filename Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: pfc8563: fix uninitialized variable warningArnd Bergmann1-1/+1
Gcc is unable to prove that alm_pending is always initialized when it is used, so it prints a harmless warning: drivers/rtc/rtc-pcf8563.c: In function 'pcf8563_probe': drivers/rtc/rtc-pcf8563.c:449:5: warning: 'alm_pending' may be used uninitialized in this function [-Wmaybe-uninitialized] This uses the same conditional expression that is used inside of the pcf8563_get_alarm_mode() function, to help gcc figure it out and shut up that warning, and make the ARM defconfigs build again with no warnings. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: a45d528aab8b ("rtc: pcf8563: clear expired alarm at boot time") Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: ds1307: Enable the mcp794xx alarm after programming timeNishanth Menon1-6/+6
Alarm interrupt enable register is at offset 0x7, while the time registers for the alarm follow that. When we program Alarm interrupt enable prior to programming the time, it is possible that previous time value could be close or match at the time of alarm enable resulting in interrupt trigger which is unexpected (and does not match the time we expect it to trigger). To prevent this scenario from occuring, program the ALM0_EN bit only after the alarm time is appropriately programmed. Ofcourse, I2C programming is non-atomic, so there are loopholes where the interrupt wont trigger if the time requested is in the past at the time of programming the ALM0_EN bit. However, we will not have unexpected interrupts while the time is programmed after the interrupt are enabled. Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: hym8563: make the irq optionalHeiko Stübner1-8/+10
Sometimes the irq line is not connected to any soc-pin. This does not hinder basic timekeeping functionality of the rtc, so probe should not fail in this case. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: gemini: fix cocci warningskbuild test robot1-2/+1
Use resource_size function on resource object instead of explicit computation. No need to set .owner here. The core will do it. Remove .owner field if calls are used which set it automatically Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: mv: correct 24 hour error messageAlexandre Belloni1-4/+4
The driver can't accommodate the 12 hour mode but the error message states that the 24 hour mode is not supported. Also fix the typos (hour vs hours). Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: mv: use BIT()Alexandre Belloni1-2/+3
Use bit instead of hand coding the shift and correct the 24 hour vs 24 hours typo. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: efi: use correct EFI 'epoch'Ard Biesheuvel1-25/+14
The rtc-efi driver declares that the EFI 'epoch' is 1/1/1998, but the UEFI spec does not define it at all. It does define a range of [1900, 9999] for the 'Year' member of the EFI_TIME struct, so let's use 1900 as the minimum year and not 1998. Also, move the validation of the year to the convert_from_efi_time() routine where all other EFI_TIME fields are validated as well. This prevents rtc_read_time() failures when the RTC that backs the EFI time services is set to a date before 1998, e.g., when it has lost power. This also optimizes the compute_wday() routine, by replacing the for loop with a simple arithmetic expression, and by reusing the yearday value that we need to compute anyway when populating the rtc_time::tm_yday field. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: rtc-linux@googlegroups.com Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: interface: Remove rtc_set_mmss()Xunlei Pang1-45/+0
Now rtc_set_mmss() has no users, just remove it. We still have rtc_set_time() doing similar things. Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: NTP: Add CONFIG_RTC_SYSTOHC_DEVICE for NTP synchronizationXunlei Pang2-10/+21
Currently, CONFIG_RTC_SYSTOHC uses CONFIG_RTC_HCTOSYS_DEVICE which is originally used by CONFIG_RTC_HCTOSYS, but this rtc device has some limiations, for example, it must be battery-backed, be able to work with irq off and through system suspension, etc. So add CONFIG_RTC_SYSTOHC_DEVICE used exclusively for CONFIG_RTC_SYSTOHC, it is more lenient compared to CONFIG_RTC_HCTOSYS_DEVICE, and could be assigned any available RTC in the system. Default value is CONFIG_RTC_HCTOSYS_DEVICE which is "rtc0" by default. After this patch, NTP will sync up "rtc0" by default. Cc: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: sunxi: Replace deprecated rtc_tm_to_time()Xunlei Pang1-17/+15
sunxi_rtc_setalarm() uses deprecated rtc_tm_to_time(), which will overflow in year 2106 on 32-bit machines. This patch solves this by: - Replacing rtc_tm_to_time() with rtc_tm_sub() Also remove the unnecessary initial zeroing of some local variables in sunxi_rtc_setalarm(). Cc: Carlo Caione <carlo.caione@gmail.com> Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: isl1208: Replace deprecated rtc_tm_to_time()Xunlei Pang1-8/+1
isl1208_i2c_set_alarm() uses deprecated rtc_tm_to_time(), which will overflow in year 2106 on 32-bit machines. This patch solves this by: - Replacing rtc_tm_to_time() with rtc_tm_sub() Cc: Herbert Valerio Riedel <hvr@gnu.org> Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: pcf8563: Replace deprecated rtc_time_to_tm() and rtc_tm_to_time()Xunlei Pang1-4/+4
pcf8563_rtc_set_alarm() uses deprecated rtc_tm_to_time() and rtc_time_to_tm(), which will overflow in year 2106 on 32-bit machines. This patch solves this by: - Replacing rtc_time_to_tm() with rtc_time64_to_tm() - Replacing rtc_tm_to_time() with rtc_tm_to_time64() Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: palmas: Initialise bb_charging flag before using itLaxman Dewangan1-1/+1
Initialise the variable high_bb_charging before using it to avoid configuring wrong value and fix following compilation warning: /* rtc-palmas.c: In function ‘palmas_rtc_probe’: rtc-palmas.c:242:7: warning: ‘high_bb_charging’ may be used uninitialized in this function */ Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: simplify use of devm_ioremap_resourceJulia Lawall3-12/+3
Remove unneeded error handling on the result of a call to platform_get_resource when the value is passed to devm_ioremap_resource. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression pdev,res,n,e,e1; expression ret != 0; identifier l; @@ - res = platform_get_resource(pdev, IORESOURCE_MEM, n); ... when != res - if (res == NULL) { ... \(goto l;\|return ret;\) } ... when != res + res = platform_get_resource(pdev, IORESOURCE_MEM, n); e = devm_ioremap_resource(e1, res); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> [viresh.kumar@linaro.org: acked rtc-spear] Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: pcf8563 fix: return -EINVAL if we read an invalid time.Jan Kardell1-8/+3
Return -EINVAL if the voltage low bit is set to avoid getting a bogus time at boot. There was a comment stating that util-linux hwclock refuses to set a new time if we return an error code on read, but at least the current version do set the time as expected. Remove the comment and the check for valid time, and let the rtc core check it for us. Signed-off-by: Jan Kardell <jan.kardell@telliq.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: driver for Cortina GeminiHans Ulli Kroll3-0/+188
Driver for the on chip RTC found on Cortina's SoC Gemini. Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> [alexandre.belloni@free-electrons.com: use devm_request_irq() and remove useless goto] Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: stmp3xxx select STMP_DEVICEAlexandre Belloni1-0/+1
rtc-stmp3xxx depends on lib/stmp_device, select it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: snvs: fix wakealarm by call enable_irq_wake earlierStefan Agner1-9/+21
When entering suspend while an wakeup alarm is set, enable_set_wake should make sure that the RTC interrupt keep being enabled and the .irq_set_wake for the RTC interrupt get called. However, since the driver uses the suspend_noirq callback, the call to enable_irq_wake has been made after disabling the interrupts. While .irq_set_wake has been called properly, the interrupt remained disabled. Use the suspend callback to call enable_irq_wake early enough to ensure the RTC interrupt remains enabled. Fixes: 7654e9d4fd8f ("drivers/rtc/rtc-snvs: fix suspend/resume") Cc: <stable@vger.kernel.org> # 3.19 Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: rtc-v3020: use gpio_request_array()Jingoo Han1-30/+11
Using gpio_request_array()/gpio_free_array() can make the code simpler because it can set the direction and initial value in one shot and the for loop is unnecessary. Also, struct v3020_gpio is removed, because the struct v3020_gpio is replaced with struct gpio. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: ep93xx: Use readl/writel for ioH Hartley Sweeten1-3/+3
Drivers should not be using the __raw_* io accessors. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: max77802: Report platform modalias to fix module autoloadJavier Martinez Canillas1-0/+1
If the rtc-max77802 driver is built as a module, modalias information is not filled so the module is not autoloaded. Use the MODULE_DEVICE_TABLE() macro to export the platform ID table so the module contains that data. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: max77686: Report platform modalias to fix module autoloadJavier Martinez Canillas1-0/+1
If the rtc-max77686 driver is built as a module, modalias information is not filled so the module is not autoloaded. Use the MODULE_DEVICE_TABLE() macro to export the platform ID table so the module contains that data. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: ds1672, max6900, max8998: Add MODULE_DEVICE_TABLEAxel Lin3-0/+3
The device table is required to load modules based on modaliases. After adding MODULE_DEVICE_TABLE, below entries will be added to modules.alias: alias i2c:ds1672 rtc_ds1672 alias i2c:max6900 rtc_max6900 alias platform:lp3974-rtc rtc_max8998 alias platform:max8998-rtc rtc_max8998 Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Dale Farnsworth <dale@farnsworth.org> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: mt6397: fix build on some 32bits platformsAlexandre Belloni1-2/+3
On some !ARM 32bits platforms, the following compilation error happens because of the division on a 64bits value in mtk_rtc_read_time(): drivers/built-in.o: In function `mtk_rtc_read_time': rtc-mt6397.c:(.text+0x265d13f): undefined reference to `__divdi3' rtc-mt6397.c:(.text+0x265d150): undefined reference to `__moddi3' Use div_s64() as done in rtc_time64_to_tm() to solve that. Reported-by: kbuild test robot <fengguang.wu@intel.com> Acked-by: Eddie Huang <eddie.huang@mediatek.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: mc13xxx: fix obfuscated and wrong format stringRasmus Villemoes1-1/+1
According to C99, %2.s means 'print two spaces' (a precision of . without following digits or * means 0). The kernel's printf implementation, however, treats that case as if no precision was given, but relying on that quirk is rather silly. Also, since no - (aka left-justify) flag is given, the field with of 2 would then cause the alarm->enabled case to come out as "o n". Deobfuscate it. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: mediatek: Add MT6397 RTC driverTianping Fang3-0/+405
Add Mediatek MT6397 RTC driver Signed-off-by: Tianping Fang <tianping.fang@mediatek.com> Signed-off-by: Eddie Huang <eddie.huang@mediatek.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: xgene: Set hardware dependencyJean Delvare1-0/+1
The rtc-xgene driver is only useful on X-Gene SoC. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Iyappan Subramanian <isubramanian@apm.com> Cc: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: at32ap700x: update author emailHans-Christian Egtvedt1-1/+1
This patch updates the email address of the rtc-at32ap700x driver supported by me to an email account I will use on a more regular basis in the future. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-24Merge tag 'mfd-for-linus-4.2' of ↵Linus Torvalds3-0/+366
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "Changes to existing drivers: - Constify structures; throughout the subsystem - Move support to DT in; cros_ec - DT changes and documentation; cros-ec, max77693, max77686, arizona, da9063 - ACPI changes and documentation; mfd-core - Use different platform specific API in; cros_ec_*, arizona-core - Remove unused parent field from; cros_ec_i2c - Add wake-up/reset delay in; cross_ec_spi, arizona-core - Staticise structures/functions in; cros_ec - Remove redundant code; arizona-core, max77686 - Bugfix; twl4030-power - Allow compile test; aat2870, tps65910 - MAINTAINERS adaptions; samsung, syscon - Resource Management (devm_*); arizona-core - Refactor Reset code; arizona-core - Insist on at least one full boot; arizona-core - Trivial formatting; arizona-core - Add low-power-sleep; arizona-core - IRQ ONESHOT changes; twl4030-irq, mc13xxx-core, wm831x-auxadc, htc-i2cpld, wm8350-core, ab8500-debugfs, ab8500-gpadc, si476x-i2c (Re-)moved drivers: - Move protocol helpers out to drivers/platform; cros_ec New drivers/supported devices: - Add support for AXP22x into axp20x - Add support for OnKey into da9063-core - Add support for Pinctrl into mt6397-core - New STMicroelectronics LPC Watchdog driver - New STMicroelectronics LPC Real-Time Clock driver" * tag 'mfd-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (59 commits) mfd: lpc_ich: Assign subdevice ids automatically mfd: si476x-i2c: Pass the IRQF_ONESHOT flag mfd: ab8500-gpadc: Pass the IRQF_ONESHOT flag mfd: ab8500-debugfs: Pass the IRQF_ONESHOT flag mfd: wm8350-core: Pass the IRQF_ONESHOT flag mfd: htc-i2cpld: Pass the IRQF_ONESHOT flag mfd: wm831x-auxadc: Pass the IRQF_ONESHOT flag mfd: mc13xxx-core: Pass the IRQF_ONESHOT flag mfd: twl4030-irq: Pass the IRQF_ONESHOT flag mfd: mt6397-core: Add GPIO sub-module support mfd: arizona: Add convience defines for micd_rate/micd_bias_starttime mfd: dt: Add bindings for DA9063 OnKey mfd: da9063: Add support for OnKey driver mfd: arizona: Fix incorrect Makefile conditionals mfd: arizona: Add stub for wm5102_patch() mfd: Check ACPI device companion before checking resources Documentation: Add WM8998/WM1814 device tree bindings mfd: arizona: Split INx_MODE into two fields mfd: wm5110: Add delay before releasing reset line mfd: arizona: Add better support for system suspend ...
2015-06-21MIPS: Loongson: Naming style cleanup and reworkHuacai Chen2-2/+2
Currently, code of Loongson-2/3 is under loongson directory and code of Loongson-1 is under loongson1 directory. Besides, there are Kconfig options such as MACH_LOONGSON and MACH_LOONGSON1. This naming style is very ugly and confusing. Since Loongson-2/3 are both 64-bit general- purpose CPU while Loongson-1 is 32-bit SoC, we rename both file names and Kconfig symbols from loongson/loongson1 to loongson64/loongson32. [ralf@linux-mips.org: Resolve a number of simple conflicts.] Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Cc: Kelvin Cheung <keguang.zhang@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9790/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-19rtc: imxdi: when locked, do not fail silentlyJuergen Borleis1-3/+24
If the DryICE unit is locked it is impossible to set the time. Provide an error message for this case. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Robert Schwebel <rsc@pengutronix.de> [rsc: got NDA clearance from Freescale] Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: imxdi: monitor a security violation at runtimeJuergen Borleis1-2/+19
Maybe the unit enters the hardware related state at runtime and not at system boot time (after a power cycle). Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Robert Schwebel <rsc@pengutronix.de> [rsc: got NDA clearance from Freescale] Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: imxdi: add the unit recovery codeJuergen Borleis1-38/+279
This code is required to recover the unit from a security violation. Hopefully this code can recover the unit from a hardware related invalid state as well. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Robert Schwebel <rsc@pengutronix.de> [rsc: got NDA clearance from Freescale] Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: imxdi: add some background info about the states the machine can be inJuergen Borleis1-0/+43
Document the i.MX DryIce machine states. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Robert Schwebel <rsc@pengutronix.de> [rsc: got NDA clearance from Freescale] Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: imxdi: avoid the __raw* register access functionsJuergen Borleis1-22/+22
Be independent of the endianness of the kernel. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: s3c: Integrate Exynos3250 into S3C6410Krzysztof Kozlowski1-13/+1
There are now no differences between RTC on Exynos3250 and S3C6410. Merge everything into one so duplicated code could be removed. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: interface: Remove unused return value from rtc_timer_cancel()Krzysztof Kozlowski1-3/+1
The rtc_timer_cancel() always returns 0 and cannot fail (calls only other void-returning functions). Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: mxc: Constify platform_device_idKrzysztof Kozlowski1-1/+1
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: hid-sensor-time: Constify platform_device_idKrzysztof Kozlowski1-1/+1
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: ab8500: Constify platform_device_idKrzysztof Kozlowski1-1/+1
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-19rtc: efi: Update author email addressdann frazier1-2/+2
I'm no longer employed by HP. Signed-off-by: dann frazier <dannf@dannf.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-05-15drivers/rtc/rtc-armada38x.c: remove unused local `flags'Andrew Morton1-1/+1
Reported-by: Fengguang Wu <fengguang.wu@gmail.com> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-06rtc: armada38x: fix concurrency access in armada38x_rtc_set_timeGregory CLEMENT1-12/+12
While setting the time, the RTC TIME register should not be accessed. However due to hardware constraints, setting the RTC time involves sleeping during 100ms. This sleep was done outside the critical section protected by the spinlock, so it was possible to read the RTC TIME register and get an incorrect value. This patch introduces a mutex for protecting the RTC TIME access, unlike the spinlock it is allowed to sleep in a critical section protected by a mutex. The RTC STATUS register can still be used from the interrupt handler but it has no effect on setting the time. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: <stable@vger.kernel.org> [4.0] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-06rtc: add rtc-abx80x, a driver for the Abracon AB x80x i2c rtcPhilippe De Muyter3-0/+318
This is a basic driver for the ultra-low-power Abracon AB x80x series of RTC chips. It supports in particular, the supersets AB0805 and AB1805. It allows reading and writing the time, and enables the supercapacitor/ battery charger. [arnd@arndb.de: abx805 depends on i2c] [alexandre.belloni@free-electrons.com: renam buffer from date to buf in abx80x_rtc_read_time()] Signed-off-by: Philippe De Muyter <phdm@macqel.be> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Paul Bolle <pebolle@tiscali.nl> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-30rtc: st: Add new driver for ST's LPC RTCLee Jones3-0/+366
ST's Low Power Controller (LPC) controls two devices; watchdog and RTC. Only one of the devices can be used at any one time. This is enforced by the correlating MFD driver. This portion of the driver-set controls the Real Time Clock. Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Lee Jones <lee.jones@linaro.org>