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* | | rtc: pm8xxx: use regmap API for register accessesJosh Cartwright2014-04-031-88/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the parent mfd driver has been made to work again, and has been reworked to create a regmap instance intended for its children to use, rework the pm8xxx driver to use the regmap API for its register accesses. Signed-off-by: Josh Cartwright <joshc@codeaurora.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: pm8xxx: fixup checkpatch/style issuesJosh Cartwright2014-04-031-44/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patchset is based on Stephen Boyd's PM8921 modernization/cleanups (http://lkml.kernel.org/g/1393441166-32692-1-git-send-email-sboyd@codeaurora.org), and allows for this RTC driver to be usable again. This patch (of 6): Before performing additional cleanups to this driver, do the easy cleanups first. Signed-off-by: Josh Cartwright <joshc@codeaurora.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: verify a critical argument to rtc_update_irq() before using itAlessandro Zummo2014-04-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This small addition to the core simplifies code in the drivers and makes them more robust when handling shared IRQs. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-ds3232.c: enable ds3232 to work as wakeup sourceWang Dongsheng2014-04-031-24/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add suspend/resume and device_init_wakeup to enable ds3232 as wakeup source, /sys/class/rtc/rtcX/wakealarm for set wakeup alarm. Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-palmas.c: use SIMPLE_DEV_PM_OPS macroJingoo Han2014-04-031-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-as3722.c: use SIMPLE_DEV_PM_OPS macroJingoo Han2014-04-031-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-cmos.c: fix compilation warning when !CONFIG_PM_SLEEPMika Westerberg2014-04-031-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_PM will be set also if only CONFIG_PM_RUNTIME is set which causes the compiler to emit following warning: drivers/rtc/rtc-cmos.c:845:12: warning: =E2=80=98cmos_resume=E2=80=99 defined but not used [-Wunused-function] Fix this by using CONFIG_PM_SLEEP instead of CONFIG_PM and removing it from the driver pm ops as this has been taken care by SIMPLE_DEV_PM_OPS() already. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-ds3232.c: make it possible to share an irqBharat Bhushan2014-04-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's possible to have RTC irq shared with other device (e.g. t4240qds board shares ds3232irq with phy one). Handle this in driver. Signed-off-by: Bharat Bhushan <Bharat.Bhushan@freescale.com> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: sunxi: change compatiblesMaxime Ripard2014-04-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Allwinner A10 compatibles were following a slightly different compatible patterns than the rest of the SoCs for historical reasons. Change the compatibles to match the other pattern in the RTC driver for consistency. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: mc13xxx: make rtc_read_time() more readableAlexander Shiyan2014-04-031-36/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unnecessary locks when reading the time and make the read operation until the values of day matched between reading the seconds, it will make the mc13xxx_rtc_read_time() procedure more readable. Additionally, patch introduced a "seconds in a day" definition. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: mc13xxx: change RTC validation schemeAlexander Shiyan2014-04-031-18/+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 <shc_work@mail.ru> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: mc13xxx: fix 1Hz interruptAlexander Shiyan2014-04-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1Hz interrupt is never unmasked, so no interrupts appears. This patch fix this issue. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: mc13xxx: simplify alarm_irq_enable()Alexander Shiyan2014-04-031-9/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes excess layer for alarm_irq_enable() function. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: mc13xxx: request IRQs after RTC registrationAlexander Shiyan2014-04-031-21/+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 <shc_work@mail.ru> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: mc13xxx: remove __exit_p()Alexander Shiyan2014-04-031-2/+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 <shc_work@mail.ru> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-ds1307.c: add alarm support for mcp7941x chipsSimon Guinot2014-04-031-1/+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 <simon.guinot@sequanux.org> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@free-electrons.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-ds1307.c: fix sysfs wakealarm attribute creationSimon Guinot2014-04-031-1/+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 <simon.guinot@sequanux.org> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@free-electrons.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-sirfsoc.c: fix kernel panic of backing from hibernationXianglong Du2014-04-031-53/+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 <Xianglong.Du@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-da9052.c: remove redundant private structure fieldAnthony Olech2014-04-031-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove redundant irq field in private rtc structure. Signed-off-by: Anthony Olech <anthony.olech.opensource@diasemi.com> Acked-by: David Dajun Chen <david.chen@diasemi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-isl12057.c: remove duplicate includeSachin Kamat2014-04-031-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | linux/rtc.h was included twice. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-jz4740: use devm_ioremap_resource()Jingoo Han2014-04-031-20/+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 <jg1.han@samsung.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-vt8500: use devm_ioremap_resource()Jingoo Han2014-04-031-23/+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 <jg1.han@samsung.com> Cc: Tony Prisk <linux@prisktech.co.nz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-davinci: use devm_ioremap_resource()Jingoo Han2014-04-031-25/+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 <jg1.han@samsung.com> Cc: Kevin Hilman <khilman@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-coh901331: use devm_ioremap_resource()Jingoo Han2014-04-031-15/+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 <jg1.han@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-spear: remove unnecessary OOM messagesJingoo Han2014-04-031-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-lpc32xx: remove unnecessary OOM messagesJingoo Han2014-04-031-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-sirfsoc: remove unnecessary OOM messagesJingoo Han2014-04-031-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-rx8025: remove unnecessary OOM messagesJingoo Han2014-04-031-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-pm8xxx: remove unnecessary OOM messagesJingoo Han2014-04-031-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-nuc900: remove unnecessary OOM messagesJingoo Han2014-04-031-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-moxart: remove unnecessary OOM messagesJingoo Han2014-04-031-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-ds1390: remove unnecessary OOM messagesJingoo Han2014-04-031-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-davinci: remove unnecessary OOM messagesJingoo Han2014-04-031-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: rtc-at32ap700x: remove unnecessary OOM messagesJingoo Han2014-04-031-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-imxdi.c: check the return value from clk_prepare_enable()Fabio Estevam2014-04-031-1/+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 <fabio.estevam@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: fix potential race conditionAlessandro Zummo2014-04-039-65/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RTC drivers must not return an error after device registration. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Reported-by: Ales Novak <alnovak@suse.cz> Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Srikanth Srinivasan <srikanth.srinivasan@freescale.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/rtc/rtc-s3c.c: fix incorrect way of save/restore of S3C2410_TICNT ↵Vikas Sajjan2014-03-041-5/+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 <vikas.sajjan@samsung.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'akpm' (incoming from Andrew)Linus Torvalds2014-01-2315-119/+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 <akpm@linux-foundation.org>: (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 ...
| * | drivers/rtc/rtc-rx8581.c: add SMBus-only adapters supportAndreas Werner2014-01-231-13/+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 <andreas.werner@men.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | drivers/rtc/rtc-s5m.c: s5m_rtc_{suspend,resume}() should depend on ↵Geert Uytterhoeven2014-01-231-0/+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 <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | rtc: max8907: weekday encoding fixesStephen Warren2014-01-231-6/+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 <swarren@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | drivers/rtc/rtc-hym8563.c: staticize local symbolSachin Kamat2014-01-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | 'hym8563_clkout_ops' is used only in this file. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | drivers/rtc/rtc-hym8563.c: remove redundant of_match_ptr() helperSachin Kamat2014-01-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | 'hym8563_dt_idtable' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | drivers/rtc/rtc-ds1742.c: remove redundant of_match_ptr() helperSachin Kamat2014-01-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | 'ds1742_rtc_of_match' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | drivers/rtc/rtc-cmos.c: propagate hpet_register_irq_handler() failureAndrew Morton2014-01-231-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If hpet_register_irq_handler() fails, cmos_do_probe() will incorrectly return 0. Reported-by: Julia Lawall <julia.lawall@lip6.fr> Cc: John Stultz <john.stultz@linaro.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | rtc: honor device tree /alias entries when assigning IDsStephen Warren2014-01-231-4/+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 <swarren@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | drivers/rtc/rtc-pcf2127.c: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERODuan Jiong2014-01-231-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a coccinelle error regarding usage of IS_ERR and PTR_ERR instead of PTR_ERR_OR_ZERO. Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | drivers/rtc/Kconfig: disable RTC_DRV_CMOS on AtariGeert Uytterhoeven2014-01-231-1/+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 <geert@linux-m68k.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | drivers/rtc/rtc-cmos.c: remove superfluous name castGeert Uytterhoeven2014-01-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | device_driver.name is "const char *" Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | rtc: add hym8563 rtc-driverHeiko Stuebner2014-01-233-0/+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 <heiko@sntech.de> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Grant Likely <grant.likely@linaro.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Richard Weinberger <richard.weinberger@gmail.com> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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