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2014-04-03rtc: mc13xxx: change RTC validation schemeAlexander Shiyan1-18/+14
Datasheet says: "When the VSRTC voltage drops to the range of 0.9 - 0.8V, the RTCPORB reset signal is generated and the contents of the RTC will be reset. <skip>. To inform the processor that the contents of the RTC are no longer valid due to the reset, a timer reset interrupt function is implemented with the RTCRSTI bit." This patch makes the RTC valid by default until RTCRST interrupt occurs. Signed-off-by: Alexander Shiyan <[email protected]> Cc: Uwe Kleine-König <[email protected]> Cc: Sascha Hauer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: mc13xxx: fix 1Hz interruptAlexander Shiyan1-1/+1
1Hz interrupt is never unmasked, so no interrupts appears. This patch fix this issue. Signed-off-by: Alexander Shiyan <[email protected]> Cc: Uwe Kleine-König <[email protected]> Cc: Sascha Hauer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: mc13xxx: simplify alarm_irq_enable()Alexander Shiyan1-9/+3
This patch removes excess layer for alarm_irq_enable() function. Signed-off-by: Alexander Shiyan <[email protected]> Cc: Uwe Kleine-König <[email protected]> Cc: Sascha Hauer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: mc13xxx: request IRQs after RTC registrationAlexander Shiyan1-21/+11
Interrupts can appear after request_irq and interrupt handlers can use the RTC device, but currently we register RTC after IRQs. This patch changes this order and simplify error path a bit. Signed-off-by: Alexander Shiyan <[email protected]> Cc: Uwe Kleine-König <[email protected]> Cc: Sascha Hauer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: mc13xxx: remove __exit_p()Alexander Shiyan1-2/+2
Since we no longer allow building without hotplug, the mc13xxx_rtc_remove() function is always present and we should not use __exit_p() to refer to it. Signed-off-by: Alexander Shiyan <[email protected]> Cc: Uwe Kleine-König <[email protected]> Cc: Sascha Hauer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03drivers/rtc/rtc-ds1307.c: add alarm support for mcp7941x chipsSimon Guinot1-1/+182
Add alarm support for the Microchip RTC devices MCP794xx. Note that two programmable alarms are provided by the chip but only one is used by the driver. Signed-off-by: Simon Guinot <[email protected]> Cc: Jason Cooper <[email protected]> Cc: Andrew Lunn <[email protected]> Cc: Gregory Clement <[email protected]> Cc: Sebastian Hesselbarth <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03drivers/rtc/rtc-ds1307.c: fix sysfs wakealarm attribute creationSimon Guinot1-1/+1
In order to allow the creation of the sysfs attribute wakealarm, this patch moves the device_set_wakeup_capable() call above the RTC device registration. Signed-off-by: Simon Guinot <[email protected]> Cc: Jason Cooper <[email protected]> Cc: Andrew Lunn <[email protected]> Cc: Gregory Clement <[email protected]> Cc: Sebastian Hesselbarth <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03drivers/rtc/rtc-sirfsoc.c: fix kernel panic of backing from hibernationXianglong Du1-53/+9
RTC settings will be lost if power supply is cut off after hibernation finished, but the current "restore" function does not restore RTC related settings, this causes rtc_read_time failure and kernel panic: rtc rtc0: **** DPM device timeout **** Stack trace: unwind_backtrace+0x0/0xf4 show_stack+0x10/0x14 dpm_wd_handler+0x24/0x28 call_timer_fn.isra.33+0x24/0x88 run_timer_softirq+0x178/0x1f0 __do_softirq+0x120/0x200 do_softirq+0x54/0x5c irq_exit+0x9c/0xd0 handle_IRQ+0x44/0x90 __irq_svc+0x40/0x70 _raw_spin_unlock_irqrestore+0x10/0x48 sirfsoc_rtc_iobrg_readl+0x34/0x3c sirfsoc_rtc_read_time+0x24/0x48 __rtc_read_time.isra.3+0x48/0x5c rtc_read_time+0x30/0x44 rtc_resume.part.9+0x20/0x104 rtc_resume+0x5c/0x64 dpm_run_callback.isra.4+0x2c/0x74 device_resume+0x9c/0x144 dpm_resume+0x100/0x224 hibernation_snapshot+0x170/0x398 hibernate+0x13c/0x1d8 state_store+0xb4/0xb8 kobj_attr_store+0x14/0x20 sysfs_write_file+0x160/0x190 vfs_write+0xb4/0x194 SyS_write+0x3c/0x78 this patch uses SIMPLE_DEV_PM_OPS() to make restore() execute the existing resume() function which will restore the set of RTC. Signed-off-by: Xianglong Du <[email protected]> Signed-off-by: Barry Song <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03drivers/rtc/rtc-da9052.c: remove redundant private structure fieldAnthony Olech1-3/+1
Remove redundant irq field in private rtc structure. Signed-off-by: Anthony Olech <[email protected]> Acked-by: David Dajun Chen <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03drivers/rtc/rtc-isl12057.c: remove duplicate includeSachin Kamat1-1/+0
linux/rtc.h was included twice. Signed-off-by: Sachin Kamat <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-jz4740: use devm_ioremap_resource()Jingoo Han1-20/+5
Use devm_ioremap_resource() in order to make the code simpler, and move 'struct resource *mem' from 'struct jz4740_rtc' to jz4740_rtc_probe() because the 'mem' variable is used only in jz4740_rtc_probe(). Also the redundant return value check of platform_get_resource() is removed, because the value is checked by devm_ioremap_resource(). Signed-off-by: Jingoo Han <[email protected]> Cc: Lars-Peter Clausen <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-vt8500: use devm_ioremap_resource()Jingoo Han1-23/+5
Use devm_ioremap_resource() in order to make the code simpler, and move 'struct resource *res' from 'struct vt8500_rtc' to vt8500_rtc_probe() because the 'res' variable is used only in vt8500_rtc_probe(). Signed-off-by: Jingoo Han <[email protected]> Cc: Tony Prisk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-davinci: use devm_ioremap_resource()Jingoo Han1-25/+4
Use devm_ioremap_resource() in order to make the code simpler, and remove redundant return value check of platform_get_resource() because the value is checked by devm_ioremap_resource(). Signed-off-by: Jingoo Han <[email protected]> Cc: Kevin Hilman <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-coh901331: use devm_ioremap_resource()Jingoo Han1-15/+3
Use devm_ioremap_resource() in order to make the code simpler, and remove redundant return value check of platform_get_resource() because the value is checked by devm_ioremap_resource(). Signed-off-by: Jingoo Han <[email protected]> Acked-by: Linus Walleij <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-spear: remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-lpc32xx: remove unnecessary OOM messagesJingoo Han1-3/+2
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-sirfsoc: remove unnecessary OOM messagesJingoo Han1-5/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Acked-by: Barry Song <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-rx8025: remove unnecessary OOM messagesJingoo Han1-1/+0
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-pm8xxx: remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-nuc900: remove unnecessary OOM messagesJingoo Han1-3/+2
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-moxart: remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-ds1390: remove unnecessary OOM messagesJingoo Han1-3/+2
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-davinci: remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: rtc-at32ap700x: remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Acked-by: Hans-Christian Egtvedt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03drivers/rtc/rtc-imxdi.c: check the return value from clk_prepare_enable()Fabio Estevam1-1/+3
clk_prepare_enable() may fail, so let's check its return value and propagate it in the case of error. Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-04-03rtc: fix potential race conditionAlessandro Zummo9-65/+70
RTC drivers must not return an error after device registration. [[email protected]: coding-style fixes] Signed-off-by: Alessandro Zummo <[email protected]> Reported-by: Ales Novak <[email protected]> Cc: Alexander Shiyan <[email protected]> Cc: Atsushi Nemoto <[email protected]> Cc: Jiri Kosina <[email protected]> Cc: Srikanth Srinivasan <[email protected]> Cc: Lee Jones <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Joonsoo Kim <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-03-04drivers/rtc/rtc-s3c.c: fix incorrect way of save/restore of S3C2410_TICNT ↵Vikas Sajjan1-5/+12
for TYPE_S3C64XX On exynos5250, exynos5420 and exynos5260 it was observed that, after 1 cycle of S2R, the rtc-tick occurs at a very fast rate as compared to the rtc-tick occuring before S2R. This patch fixes the above issue by correcting the wrong way of save/restore of S3C2410_TICNT for TYPE_S3C64XX. Signed-off-by: Vikas Sajjan <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-02-21rtc: mv: reset date if after year 2038Thomas Petazzoni1-0/+12
Dates after January, 19th 2038 are badly handled by userspace due to the time being stored on 32 bits. This causes issues on some Marvell platform on which the RTC is initialized by default to a date that's beyond 2038, causing a really weird behavior of the RTC. In order to avoid that, reset the date to a sane value if the RTC is beyond 2038. Signed-off-by: Thomas Petazzoni <[email protected]> Signed-off-by: Jason Cooper <[email protected]>
2014-02-18Merge tag 'dropmachtimexh-v2' of git://git.pengutronix.de/git/ukl/linux into ↵Olof Johansson2-2/+1
next/cleanup This cleanup series gets rid of <mach/timex.h> for platforms not using ARCH_MULTIPLATFORM. (For multi-platform code it's already unused since 387798b (ARM: initial multiplatform support).) To make this work some code out of arch/arm needed to be adapted. The respective changes got acks by their maintainers to be taken via armsoc (with Andrew Morton substituting for Alessandro Zummo as rtc maintainer). Compared to the previous pull request there was another patch added that fixes a (non-critical) regression on ixp4xx. Olof Johansson asked to not squash this fix into the original commit to save him from the need to reverify the series. * tag 'dropmachtimexh-v2' of git://git.pengutronix.de/git/ukl/linux: ARM: ixp4xx: fix timer latch calculation ARM: drop <mach/timex.h> for !ARCH_MULTIPLATFORM, too ARM: rpc: stop using <mach/timex.h> ARM: ixp4xx: stop using <mach/timex.h> input: ixp4xx-beeper: don't use symbols from <mach/timex.h> ARM: at91: don't use <mach/timex.h> ARM: ep93xx: stop using mach/timex.h ARM: mmp: stop using mach/timex.h ARM: netx: stop using mach/timex.h ARM: sa1100: stop using mach/timex.h clocksource: sirf/marco+prima2: drop usage of CLOCK_TICK_RATE rtc: pxa: drop unused #define TIMER_FREQ rtc: at91sam9: include <mach/hardware.h> explicitly ARM/serial: at91: switch atmel serial to use gpiolib Signed-off-by: Olof Johansson <[email protected]>
2014-02-18rtc: isl12057: use PTR_ERR_OR_ZERO to fix coccinelle warningsFengguang Wu1-4/+1
drivers/rtc/rtc-isl12057.c:278:1-3: WARNING: PTR_RET can be used Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR Generated by: coccinelle/api/ptr_ret.cocci CC: Arnaud Ebalard <[email protected]> CC: Jason Cooper <[email protected]> Signed-off-by: Fengguang Wu <[email protected]> Signed-off-by: Jason Cooper <[email protected]>
2014-01-23Merge branch 'akpm' (incoming from Andrew)Linus Torvalds15-119/+760
Merge second patch-bomb from Andrew Morton: - various misc bits - the rest of MM - add generic fixmap.h, use it - backlight updates - dynamic_debug updates - printk() updates - checkpatch updates - binfmt_elf - ramfs - init/ - autofs4 - drivers/rtc - nilfs - hfsplus - Documentation/ - coredump - procfs - fork - exec - kexec - kdump - partitions - rapidio - rbtree - userns - memstick - w1 - decompressors * emailed patches from Andrew Morton <[email protected]>: (197 commits) lib/decompress_unlz4.c: always set an error return code on failures romfs: fix returm err while getting inode in fill_super drivers/w1/masters/w1-gpio.c: add strong pullup emulation drivers/memstick/host/rtsx_pci_ms.c: fix ms card data transfer bug userns: relax the posix_acl_valid() checks arch/sh/kernel/dwarf.c: use rbtree postorder iteration helper instead of solution using repeated rb_erase() fs-ext3-use-rbtree-postorder-iteration-helper-instead-of-opencoding-fix fs/ext3: use rbtree postorder iteration helper instead of opencoding fs/jffs2: use rbtree postorder iteration helper instead of opencoding fs/ext4: use rbtree postorder iteration helper instead of opencoding fs/ubifs: use rbtree postorder iteration helper instead of opencoding net/netfilter/ipset/ip_set_hash_netiface.c: use rbtree postorder iteration instead of opencoding rbtree/test: test rbtree_postorder_for_each_entry_safe() rbtree/test: move rb_node to the middle of the test struct rapidio: add modular rapidio core build into powerpc and mips branches partitions/efi: complete documentation of gpt kernel param purpose kdump: add /sys/kernel/vmcoreinfo ABI documentation kdump: fix exported size of vmcoreinfo note kexec: add sysctl to disable kexec_load fs/exec.c: call arch_pick_mmap_layout() only once ...
2014-01-23Merge tag 'drivers-for-linus' of ↵Linus Torvalds4-0/+853
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM driver updates from Olof Johansson: "Updates of SoC-near drivers and other driver updates that makes more sense to take through our tree. The largest part of this is a conversion of device registration for some renesas shmobile/sh devices over to use resources. This has required coordination with the corresponding arch/sh changes, and we've agreed to merge the arch/sh changes through our tree. Added in this branch is support for Trusted Foundations secure firmware, which is what is used on many of the commercial Nvidia Tegra products that are in the market, including the Nvidia Shield. The code is local to arch/arm at this time since it's uncertain whether it will be shared with arm64 longer-term, if needed we will refactor later. A couple of new RTC drivers used on ARM boards, merged through our tree on request by the RTC maintainer. ... plus a bunch of smaller updates across the board, gpio conversions for davinci, etc" * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits) watchdog: davinci: rename platform driver to davinci-wdt tty: serial: Limit msm_serial_hs driver to platforms that use it mmc: msm_sdcc: Limit driver to platforms that use it usb: phy: msm: Move mach dependent code to platform data clk: versatile: fixup IM-PD1 clock implementation clk: versatile: pass a name to ICST clock provider ARM: integrator: pass parent IRQ to the SIC irqchip: versatile FPGA: support cascaded interrupts from DT gpio: davinci: don't create irq_domain in case of unbanked irqs gpio: davinci: use chained_irq_enter/chained_irq_exit API gpio: davinci: add OF support gpio: davinci: remove unused variable intc_irq_num gpio: davinci: convert to use irqdomain support. gpio: introduce GPIO_DAVINCI kconfig option gpio: davinci: get rid of DAVINCI_N_GPIO gpio: davinci: use {readl|writel}_relaxed() instead of __raw_* serial: sh-sci: Add OF support serial: sh-sci: Add device tree bindings documentation serial: sh-sci: Remove platform data mapbase and irqs fields serial: sh-sci: Remove platform data scbrr_algo_id field ...
2014-01-23drivers/rtc/rtc-rx8581.c: add SMBus-only adapters supportAndreas Werner1-13/+68
Add support for SMBus-only adapters (e.g. i2c-piix4). The driver has implemented only support for I2C adapters which implement the I2C_FUNC_SMBUS_I2C_BLOCK functionality before. With this patch it is possible to load and use the RTC driver with I2C and SMBUS adapters like the rtc-ds1307 does. Tested on AMD G Series Platform (i2c-piix4 adapter driver). Signed-off-by: Andreas Werner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-s5m.c: s5m_rtc_{suspend,resume}() should depend on ↵Geert Uytterhoeven1-0/+2
CONFIG_PM_SLEEP If CONFIG_PM_SLEEP=n: drivers/rtc/rtc-s5m.c:643: warning: `s5m_rtc_resume' defined but not used drivers/rtc/rtc-s5m.c:654: warning: `s5m_rtc_suspend' defined but not used Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23rtc: max8907: weekday encoding fixesStephen Warren1-6/+5
The current MAX8907 driver has two issues related to weekday value handling: 1) The HW WEEKDAY register has range 0..6 rather than 1..7 as documented. Note that I validated the actual HW range by observing the HW register roll from 6->0 rather than 6->7->1 as would otherwise be expected. This matches Linux's tm_wday range of 0..6. When the CMOS RAM content is lost, the date returned from the device is 2007-01-01 00:00:00, which is a Monday. The WEEKDAY register reads 1 in this case. This matches the numbering in Linux's tm_wday field. Hence we should write Linux's tm_wday value to the register without modifying it. Hence, remove the +1/-1 calculations for WEEKDAY/tm_wday. 2) There's no need to make alarms match on the WEEKDAY register, since the other fields together uniquely define the alarm date/time. Ignoring the WEEKDAY value in the match isolates the driver from any incorrect value in the current time copy of the WEEKDAY register. Each change individually, or both together, solves an issue that I observed; "hwclock -r" would time out waiting for its alarm to fire if the CMOS RAM content had been lost, and hence the WEEKDAY register value mismatched what the driver expected it to be. "hwclock -w" would solve this by over-writing the HW default WEEKDAY register value with what the driver expected. Signed-off-by: Stephen Warren <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-hym8563.c: staticize local symbolSachin Kamat1-1/+1
'hym8563_clkout_ops' is used only in this file. Signed-off-by: Sachin Kamat <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-hym8563.c: remove redundant of_match_ptr() helperSachin Kamat1-1/+1
'hym8563_dt_idtable' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-ds1742.c: remove redundant of_match_ptr() helperSachin Kamat1-1/+1
'ds1742_rtc_of_match' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-cmos.c: propagate hpet_register_irq_handler() failureAndrew Morton1-4/+2
If hpet_register_irq_handler() fails, cmos_do_probe() will incorrectly return 0. Reported-by: Julia Lawall <[email protected]> Cc: John Stultz <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23rtc: honor device tree /alias entries when assigning IDsStephen Warren1-4/+20
Assign RTC device IDs based on device tree /aliases entries if present, falling back to the existing numbering scheme if there is no /aliases entry (which includes when the system isn't booted using DT), or there is a numbering conflict. This is useful in systems with multiple RTC devices, to ensure that the best RTC device is selected as /dev/rtc0, which provides the overall system time. For example, Tegra has an on-SoC RTC that is not battery backed, typically coupled with an off-SoC RTC that is battery backed. Only the latter is useful for populating the system time, yet the former is useful e.g. for wakeup timing, since the time is not lost when the system is sleeps. Signed-off-by: Stephen Warren <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-pcf2127.c: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERODuan Jiong1-4/+1
Fix a coccinelle error regarding usage of IS_ERR and PTR_ERR instead of PTR_ERR_OR_ZERO. Signed-off-by: Duan Jiong <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/Kconfig: disable RTC_DRV_CMOS on AtariGeert Uytterhoeven1-1/+1
On ARAnyM (emulating an Atari Falcon, which doesn't have an RTC IRQ, as the Second Multi Function Peripheral MFP 68901 is available on Atari TT only), rtc-cmos doesn't work well: - The date is of by 32 years (2045 instead of 2013): rtc_cmos rtc_cmos: setting system clock to 2045-12-02 10:56:17 UTC (2395824977) - The hwclock utility doesn't work: hwclock: ioctl() to /dev/rtc to turn on update interrupts failed unexpectedly, errno=5: Input/output error. As rtc-generic works fine for the RTC part, and nvram works for the NVRAM part, we'll continue on using that. Signed-off-by: Geert Uytterhoeven <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-cmos.c: remove superfluous name castGeert Uytterhoeven1-1/+1
device_driver.name is "const char *" Signed-off-by: Geert Uytterhoeven <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23rtc: add hym8563 rtc-driverHeiko Stuebner3-0/+618
The Haoyu Microelectronics HYM8563 provides rtc and alarm functions as well as a clock output of up to 32kHz. Signed-off-by: Heiko Stuebner <[email protected]> Cc: Rob Herring <[email protected]> Cc: Pawel Moll <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Stephen Warren <[email protected]> Cc: Ian Campbell <[email protected]> Cc: Grant Likely <[email protected]> Cc: Mike Turquette <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Mark Brown <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-vr41xx.c: use devm_*() functionsJingoo Han1-38/+12
Use devm_*() functions to make cleanup paths simpler, and remove unnecessary remove(). Signed-off-by: Jingoo Han <[email protected]> Cc: Yoichi Yuasa <[email protected]> Cc: Grygorii Strashko <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-twl.c: use devm_*() functionsJingoo Han1-25/+13
Use devm_*() functions to make cleanup paths simpler, and remove unnecessary remove(). Signed-off-by: Jingoo Han <[email protected]> Cc: Yoichi Yuasa <[email protected]> Cc: Grygorii Strashko <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-ds1742.c: add devicetree supportAlexander Shiyan1-1/+9
This patch allows the driver to be enabled with devicetree. Signed-off-by: Alexander Shiyan <[email protected]> Acked-by: Mark Rutland <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-mxc.c: check the return value from clk_prepare_enable()Fabio Estevam1-1/+4
clk_prepare_enable() may fail, so let's check its return value and propagate it in the case of error. Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-mxc.c: remove unneeded labelFabio Estevam1-4/+1
There is no need to jump to the 'exit_free_pdata' label when devm_clk_get() fails, as we can directly return the error and simplify the code a bit. Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-01-23drivers/rtc/rtc-ds1305.c: remove unnecessary spi_set_drvdata()Jingoo Han1-1/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>