- 03 Apr, 2014 40 commits
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Andreas Rohner authored
With this ioctl the segment usage entries in the SUFILE can be updated from userspace. This is useful, because it allows the userspace GC to modify and update segment usage entries for specific segments, which enables it to avoid unnecessary write operations. If a segment needs to be cleaned, but there is no or very little reclaimable space in it, the cleaning operation basically degrades to a useless moving operation. In the end the only thing that changes is the location of the data and a timestamp in the segment usage information. With this ioctl the GC can skip the cleaning and update the segment usage entries directly instead. This is basically a shortcut to cleaning the segment. It is still necessary to read the segment summary information, but the writing of the live blocks can be skipped if it's not worth it. [konishi.ryusuke@lab.ntt.co.jp: add description of NILFS_IOCTL_SET_SUINFO ioctl] Signed-off-by:
Andreas Rohner <andreas.rohner@gmx.net> Signed-off-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Andreas Rohner authored
Introduce nilfs_sufile_set_suinfo(), which expects an array of nilfs_suinfo_update structures and updates the segment usage information accordingly. This is basically a helper function for the newly introduced NILFS_IOCTL_SET_SUINFO ioctl. [konishi.ryusuke@lab.ntt.co.jp: use put_bh() instead of brelse() because we know bh != NULL] Signed-off-by:
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Andreas Rohner authored
Add the nilfs_suinfo_update structure, which contains the information needed to update one segment usage entry. The flags specify, which fields need to be updated. Signed-off-by:
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Ryusuke Konishi authored
Update git repository entry of nilfs2 file system and maintainer's email description. Signed-off-by:
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Fabian Frederick authored
init_inodecache is only called by __init init_coda Signed-off-by:
Fabian Frederick <fabf@skynet.be> Signed-off-by:
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Fabian Frederick authored
Summary: - all printk(KERN_foo converted to pr_foo() - add pr_fmt and remove redundant prefixes - convert befs_() to va_format (based on patch by Joe Perches) - remove non standard %Lu - use __func__ for all debugging [akpm@linux-foundation.org: fix printk warnings, reported by Fengguang] Signed-off-by:
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Fabian Frederick authored
init_inodecache is only called by __init init_befs_fs. Signed-off-by:
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Fabian Frederick authored
Use kzalloc for clean fs_info allocation like other filesystems. Signed-off-by:
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Fabian Frederick authored
init_inodecache is only called by __init init_minix_fs. Signed-off-by:
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Alexander Shiyan authored
The patch "rtc: verify a critical argument to rtc_update_irq() before using it" introduces validation for rtc_device in the RTC core, so there are no need to check this argument for rtc_update_irq() from the drivers. This patch removes such check for the existing rtc_update_irq() users. Signed-off-by:
Alexander Shiyan <shc_work@mail.ru> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Pankaj Dubey authored
NO_IRQ may be defined as '(unsigned int) -1' in some architectures (arm, sh ...), and either may not be defined in some architectures (arm64) which can enable RTC_DRV_S3C. Also since platform_get_irq returns err-code in case of any error, we do not need to intialize s3c_rtc_alarmno and s3c_rtc_tickno. Signed-off-by:
Pankaj Dubey <pankaj.dubey@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Adam Thomson authored
Using platform_get_irq_byname() to retrieve the IRQ number returns the VIRQ number rather than the local IRQ number for the device. Passing that value then into regmap_irq_get_virq() causes a failure because the function is expecting the local IRQ number (e.g. 0, 1, 2, 3, etc). This patch removes use of regmap_irq_get_virq() to prevent this failure from happening Signed-off-by:
Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Gregory Hermant authored
RTC drivers must not return an error after device registration. Signed-off-by:
Gregory Hermant <gregory.hermant@calao-systems.com> Acked-by:
Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Raghavendra Ganiga authored
Add support for maxim dallas rtc ds1347 Signed-off-by:
Raghavendra Chandra Ganiga <ravi23ganiga@gmail.com> Acked-by:
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Alexander Shiyan authored
RTC drivers must not return an error after device registration. This patch makes RTC registration as the last action. Signed-off-by:
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Josh Cartwright authored
Setup wakeup capability before rtc_register to ensure the rtc class core properly sets up our 'wakealarm' sysfs attribute. 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:
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Josh Cartwright authored
Add support for describing the PM8921/PM8058 RTC in device tree. Additionally: - drop support for describing the RTC using platform data, as there are no current in tree users who do so. - make allow_set_time a device-specific flag, instead of mucking with the rtc_ops Signed-off-by:Lee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Josh Cartwright authored
Make use of the devm_* variant of request_any_context_irq to allow for elimination of remove(). Signed-off-by:
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Josh Cartwright authored
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:
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Josh Cartwright authored
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:
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Alessandro Zummo authored
This small addition to the core simplifies code in the drivers and makes them more robust when handling shared IRQs. Signed-off-by:
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Wang Dongsheng authored
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:
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Jingoo Han authored
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:
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Jingoo Han authored
Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler. Signed-off-by:
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Mika Westerberg authored
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:
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Bharat Bhushan authored
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:
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Maxime Ripard authored
Switch the device tree to the new compatibles introduced in the RTC drivers to have a common pattern accross all Allwinner SoCs. Signed-off-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by:
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Maxime Ripard authored
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:
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Alexander Shiyan authored
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:
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Alexander Shiyan authored
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:
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Alexander Shiyan authored
1Hz interrupt is never unmasked, so no interrupts appears. This patch fix this issue. Signed-off-by:
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Alexander Shiyan authored
This patch removes excess layer for alarm_irq_enable() function. Signed-off-by:
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Alexander Shiyan authored
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:
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Alexander Shiyan authored
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:
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Simon Guinot authored
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:
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Simon Guinot authored
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:
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Xianglong Du authored
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:
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Anthony Olech authored
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:
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Sachin Kamat authored
linux/rtc.h was included twice. Signed-off-by:
Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by:
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Jingoo Han authored
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:
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