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| * | rtc: puv3: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-9/+4
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306010240.40056-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: puv3: set rangeAlexandre Belloni2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | This RTC is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306010240.40056-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: ab8500: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion. Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200306010101.39517-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pl031: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-20/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion to allow extending support after 2106 and properly supporting the STv2 range. Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200306005809.38530-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pl031: set rangeAlexandre Belloni2020-03-161-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PL031 and ST v1 RTC are 32bit seconds counters. STv2 is a BCD RTC apparently going from 0000 to 9999, hopefully handling the leap days properly until then. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200306005809.38530-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pl031: remove useless invalid alarm handlingAlexandre Belloni2020-03-161-16/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | The core will never pass an invalid alarm to .set_alarm, it is not necessary to check for its validity. Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200306005809.38530-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: fsl-ftm-alarm: allow COMPILE_TESTAlexandre Belloni2020-03-161-1/+1
| | | | | | | | | | | | | | | | | | | | | Allow building building the driver with COMPILE_TEST. Link: https://lore.kernel.org/r/20200306131629.18837-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: mpc5121: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-5/+3
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306074404.58909-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: mpc5121: set rangeAlexandre Belloni2020-03-161-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | The datasheet states that 4052 is the maximum value for year. However, the mpc5121 read_time and set_time function abuse the target time register instead of using the broken down time so it is limited to 2106. Link: https://lore.kernel.org/r/20200306074404.58909-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: mpc5121: convert to devm_rtc_allocate_deviceAlexandre Belloni2020-03-161-10/+12
| | | | | | | | | | | | | | | | | | | | | This simplifies the path for the rtc_ops selection. Link: https://lore.kernel.org/r/20200306074404.58909-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: mpc5121: simplify probeAlexandre Belloni2020-03-161-14/+8
| | | | | | | | | | | | | | | | | | | | | Use devm managed function to simplify probe and remove. Link: https://lore.kernel.org/r/20200306074404.58909-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pm8xxx: stop validating valid alarm timeAlexandre Belloni2020-03-161-6/+0
| | | | | | | | | | | | | | | | | | | | | rtc_time64_to_tm never generates an invalid rtc_tm, stop validating it. Link: https://lore.kernel.org/r/20200306073758.58050-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pm8xxx: : switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-4/+4
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306073758.58050-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pm8xxx: set rangeAlexandre Belloni2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | The pm8xxx are 32bit seconds counter. Link: https://lore.kernel.org/r/20200306073758.58050-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pm8xxx: convert to devm_rtc_allocate_deviceAlexandre Belloni2020-03-161-9/+5
| | | | | | | | | | | | | | | | | | | | | | | | This allows further improvement of the driver. Also remove the unnecessary error string as the core will already display error messages. Link: https://lore.kernel.org/r/20200306073758.58050-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: ds1305: switch to rtc_tm_to_time64Alexandre Belloni2020-03-161-6/+2
| | | | | | | | | | | | | | | | | | | | | Call the 64bit version of rtc_tm to time conversion. Link: https://lore.kernel.org/r/20200306073459.57197-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: ds1305: set rangeAlexandre Belloni2020-03-161-0/+2
| | | | | | | | | | | | | | | | | | | | | The ds1305 is a BCD rtc valid from 2000 to 2099. Link: https://lore.kernel.org/r/20200306073459.57197-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: ds1374: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-6/+5
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306073404.56921-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: ds1374: set rangeAlexandre Belloni2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | The ds1374 is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306073404.56921-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: ds1374: fix possible race conditionAlexandre Belloni2020-03-161-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RTC IRQ is requested before the struct rtc_device is allocated, this may lead to a NULL pointer dereference in the IRQ handler. To fix this issue, allocating the rtc_device struct before requesting the RTC IRQ using devm_rtc_allocate_device, and use rtc_register_device to register the RTC device. Link: https://lore.kernel.org/r/20200306073404.56921-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: cpcap: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-2/+2
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306015703.42101-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: cpcap: set rangeAlexandre Belloni2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CPCAP rtc is a 14bit day counter plus a 17bit seconds counter. Note that this failed on Nov 10 2014 so it is very likely this driver as never been used since. Link: https://lore.kernel.org/r/20200306015703.42101-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: cpcap: convert to devm_rtc_allocate_deviceAlexandre Belloni2020-03-161-4/+4
| | | | | | | | | | | | | | | | | | | | | This allows further improvement of the driver. Link: https://lore.kernel.org/r/20200306015703.42101-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: sa1100: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-15/+6
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306010146.39762-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: sa1100: set rangeAlexandre Belloni2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | The SA1100 RTC is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306010146.39762-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: sa1100: fix possible race conditionAlexandre Belloni2020-03-161-8/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both RTC IRQs are requested before the struct rtc_device is allocated, this may lead to a NULL pointer dereference in the IRQ handler. To fix this issue, allocating the rtc_device struct before requesting the IRQs using devm_rtc_allocate_device, and use rtc_register_device to register the RTC device. Link: https://lore.kernel.org/r/20200306010146.39762-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: au1xxx: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-2/+2
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306005958.39203-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: au1xxx: set rangeAlexandre Belloni2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | The Alchemy counter0 is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306005958.39203-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: au1xxx: remove goto labelAlexandre Belloni2020-03-161-9/+2
| | | | | | | | | | | | | | | | | | | | | Simplify the driver by removing the goto label as it only does return ret. Link: https://lore.kernel.org/r/20200306005958.39203-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: au1xxx: convert to devm_rtc_allocate_deviceAlexandre Belloni2020-03-161-7/+6
| | | | | | | | | | | | | | | | | | | | | This allows further improvement of the driver. Link: https://lore.kernel.org/r/20200306005958.39203-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: starfire: switch to rtc_time64_to_tmAlexandre Belloni2020-03-161-1/+1
| | | | | | | | | | | | | | | | | | | | | Call the 64bit version of rtc_tm time conversion. Link: https://lore.kernel.org/r/20200306005910.38939-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: starfire: set rangeAlexandre Belloni2020-03-161-3/+5
| | | | | | | | | | | | | | | | | | | | | The starfire RTC is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306005910.38939-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pl030: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-14/+7
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion to avoid the y2106 issue. Link: https://lore.kernel.org/r/20200306005730.38268-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pl030: remove useless invalid alarm handlingAlexandre Belloni2020-03-161-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | The core will never pass an invalid alarm to .set_alarm, it is not necessary to check for its validity. Link: https://lore.kernel.org/r/20200306005730.38268-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: pl030: set rangeAlexandre Belloni2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | This RTC is a 32bit seconds counter. Link: https://lore.kernel.org/r/20200306005730.38268-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: davinci: remove useless error handlingAlexandre Belloni2020-03-161-9/+4
| | | | | | | | | | | | | | | | | | | | | | | | convertfromdays and convert2days never return errors, stop handling non existent errors. Link: https://lore.kernel.org/r/20200305215022.32533-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: davinci: let the core handle rtc rangeAlexandre Belloni2020-03-161-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let the core handle offsetting and windowing the RTC range. This rtc has hours, minutes, seconds and 16bit days. As the driver has the RTC epoch set to year 2000, this means that the end of the range is 2^16 days minus one second later. This is Sun Jun 6 23:59:59 UTC 2179. This is better than the currently set year 2099. Link: https://lore.kernel.org/r/20200305215022.32533-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: davinci: remove useless 24h alarm handlingAlexandre Belloni2020-03-161-21/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code handling invalid alarms meaning the alarm is in the next 24 hours is not necessary since commit f8245c26886c ("rtc: remove "RTC_ALM_SET mode" bugs") which actually predates this driver. Since then, .set_alarm is never called with an invalid alarm and this handling is not necessary in the driver. Link: https://lore.kernel.org/r/20200305215022.32533-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: davinci: convert to devm_rtc_allocate_deviceAlexandre Belloni2020-03-161-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | This allows further improvement of the driver. Also remove the unnecessary error string as the core will already display error messages. Link: https://lore.kernel.org/r/20200305215022.32533-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: sirfsoc: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2020-03-161-10/+10
| | | | | | | | | | | | | | | | | | | | | Call the 64bit versions of rtc_tm time conversion to avoid the y2106 issue. Link: https://lore.kernel.org/r/20200305160452.27808-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: sirfsoc: set rangeAlexandre Belloni2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This RTC is a 32bit counter running at 16Hz. This overflows every eight years and a half. However, the driver uses the SW_VALUE register to store the overflow, extending the counter to 64bit as long as the update happens before the overflow. Link: https://lore.kernel.org/r/20200305160452.27808-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: sirfsoc: convert to devm_rtc_allocate_deviceAlexandre Belloni2020-03-161-15/+8
| | | | | | | | | | | | | | | | | | | | | | | | This allows further improvement of the driver. Also remove the unnecessary error string as the core will already display error messages. Link: https://lore.kernel.org/r/20200305160452.27808-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: snvs: Improve Kconfig dependencyAnson Huang2020-03-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | i.MX SNVS RTC should depend on ARCH_MXC or COMPILE_TEST. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1583136785-4973-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: sysfs: use kobj_to_devsuguosong2020-03-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | use kobj_to_dev instead of open-conding it Signed-off-by: suguosong <suguosong@xiaomi.com> Link: https://lore.kernel.org/r/20200225021923.8570-1-guosongsu@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: cmos: Use spin_lock_irqsave() in cmos_interrupt()Ville Syrjälä2020-03-031-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cmos_interrupt() isn't always called from hardirq context, so we must use spin_lock_irqsave() & co. ================================ WARNING: inconsistent lock state 5.6.0-rc2-CI-CI_DRM_7981+ #1 Tainted: G U -------------------------------- inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage. rtcwake/4315 [HC0[0]:SC0[0]:HE1:SE1] takes: ffffffff82635198 (rtc_lock){?...}, at: cmos_interrupt+0x18/0x100 {IN-HARDIRQ-W} state was registered at: lock_acquire+0xa7/0x1c0 _raw_spin_lock+0x2a/0x40 cmos_interrupt+0x18/0x100 rtc_handler+0x75/0xc0 acpi_ev_fixed_event_detect+0xf9/0x132 acpi_ev_sci_xrupt_handler+0xb/0x28 acpi_irq+0x13/0x30 __handle_irq_event_percpu+0x41/0x2c0 handle_irq_event_percpu+0x2b/0x70 handle_irq_event+0x2f/0x50 handle_fasteoi_irq+0x8e/0x150 do_IRQ+0x7e/0x160 ret_from_intr+0x0/0x35 mwait_idle+0x7e/0x200 do_idle+0x1bb/0x260 cpu_startup_entry+0x14/0x20 start_secondary+0x15f/0x1b0 secondary_startup_64+0xa4/0xb0 irq event stamp: 42003 hardirqs last enabled at (42003): [<ffffffff81a36567>] _raw_spin_unlock_irqrestore+0x47/0x60 hardirqs last disabled at (42002): [<ffffffff81a362ed>] _raw_spin_lock_irqsave+0xd/0x50 softirqs last enabled at (41848): [<ffffffff81e00385>] __do_softirq+0x385/0x47f softirqs last disabled at (41841): [<ffffffff810bab3a>] irq_exit+0xba/0xc0 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(rtc_lock); <Interrupt> lock(rtc_lock); *** DEADLOCK *** 6 locks held by rtcwake/4315: #0: ffff888175dc9408 (sb_writers#5){.+.+}, at: vfs_write+0x1a4/0x1d0 #1: ffff88817406ca80 (&of->mutex){+.+.}, at: kernfs_fop_write+0xdd/0x1b0 #2: ffff888179be85e0 (kn->count#236){.+.+}, at: kernfs_fop_write+0xe6/0x1b0 #3: ffffffff82641e00 (system_transition_mutex){+.+.}, at: pm_suspend+0xb3/0x3b0 #4: ffffffff826b3ee0 (acpi_scan_lock){+.+.}, at: acpi_suspend_begin+0x47/0x80 #5: ffff888178fc3960 (&dev->mutex){....}, at: device_resume+0x92/0x1c0 stack backtrace: CPU: 3 PID: 4315 Comm: rtcwake Tainted: G U 5.6.0-rc2-CI-CI_DRM_7981+ #1 Hardware name: Google Soraka/Soraka, BIOS MrChromebox-4.10 08/25/2019 Call Trace: dump_stack+0x71/0x9b mark_lock+0x49a/0x500 ? print_shortest_lock_dependencies+0x200/0x200 __lock_acquire+0x6d4/0x15d0 ? __lock_acquire+0x460/0x15d0 lock_acquire+0xa7/0x1c0 ? cmos_interrupt+0x18/0x100 _raw_spin_lock+0x2a/0x40 ? cmos_interrupt+0x18/0x100 cmos_interrupt+0x18/0x100 cmos_resume+0x1fd/0x290 ? __acpi_pm_set_device_wakeup+0x24/0x100 pnp_bus_resume+0x5e/0x90 ? pnp_bus_suspend+0x10/0x10 dpm_run_callback+0x64/0x280 device_resume+0xd4/0x1c0 ? dpm_watchdog_set+0x60/0x60 dpm_resume+0x106/0x410 ? dpm_resume_early+0x38c/0x3e0 dpm_resume_end+0x8/0x10 suspend_devices_and_enter+0x16f/0xbe0 ? rcu_read_lock_sched_held+0x4d/0x80 pm_suspend+0x344/0x3b0 state_store+0x78/0xe0 kernfs_fop_write+0x112/0x1b0 vfs_write+0xb9/0x1d0 ksys_write+0x9f/0xe0 do_syscall_64+0x4f/0x220 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7ff934307154 Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5 RSP: 002b:00007ffe2647c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff934307154 RDX: 0000000000000004 RSI: 000055de3ec4e5a0 RDI: 000000000000000a RBP: 000055de3ec4e5a0 R08: 000055de3ec4c5e0 R09: 00007ff9349f3740 R10: 000055de3ec4a010 R11: 0000000000000246 R12: 000055de3ec4c500 R13: 0000000000000004 R14: 00007ff9345df2a0 R15: 00007ff9345de760 Fixes: c6d3a278cc12 ("rtc: cmos: acknowledge ACPI driven wake alarms upon resume") Fixes: 311ee9c151ad ("rtc: cmos: allow using ACPI for RTC alarm instead of HPET") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/20200221144739.11746-1-ville.syrjala@linux.intel.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: snvs: Remove unused include of of_device.hAnson Huang2020-02-181-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | There is nothing in use from of_device.h, remove it. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1581823666-16944-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: zynqmp: Clear alarm interrupt status before interrupt enableSrinivas Neeli2020-02-121-4/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix multiple occurring interrupts for alarm interrupt. RTC module doesn't clear the alarm interrupt status bit immediately after the interrupt is triggered.This is due to the sticky nature of the alarm interrupt status register. The alarm interrupt status register can be cleared only after the second counter outruns the set alarm value. To fix multiple spurious interrupts, disable alarm interrupt in the handler and clear the status bit before enabling the alarm interrupt. Fixes: 11143c19eb57 ("rtc: add xilinx zynqmp rtc driver") Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/1581503079-387-1-git-send-email-srinivas.neeli@xilinx.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| * | rtc: sh: Restore devm_ioremap() alignmentGeert Uytterhoeven2020-02-121-2/+1
| |/ | | | | | | | | | | | | | | | | | | | | The alignment of the continuation of the devm_ioremap() call in sh_rtc_probe() was broken. Join the lines, as all parameters can fit on a single line. Fixes: 4bdc0d676a643140 ("remove ioremap_nocache and devm_ioremap_nocache") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20200212084836.9511-1-geert+renesas@glider.be Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* | Merge branch 'efi-core-for-linus' of ↵Linus Torvalds2020-03-302-39/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI updates from Ingo Molnar: "The EFI changes in this cycle are much larger than usual, for two (positive) reasons: - The GRUB project is showing signs of life again, resulting in the introduction of the generic Linux/UEFI boot protocol, instead of x86 specific hacks which are increasingly difficult to maintain. There's hope that all future extensions will now go through that boot protocol. - Preparatory work for RISC-V EFI support. The main changes are: - Boot time GDT handling changes - Simplify handling of EFI properties table on arm64 - Generic EFI stub cleanups, to improve command line handling, file I/O, memory allocation, etc. - Introduce a generic initrd loading method based on calling back into the firmware, instead of relying on the x86 EFI handover protocol or device tree. - Introduce a mixed mode boot method that does not rely on the x86 EFI handover protocol either, and could potentially be adopted by other architectures (if another one ever surfaces where one execution mode is a superset of another) - Clean up the contents of 'struct efi', and move out everything that doesn't need to be stored there. - Incorporate support for UEFI spec v2.8A changes that permit firmware implementations to return EFI_UNSUPPORTED from UEFI runtime services at OS runtime, and expose a mask of which ones are supported or unsupported via a configuration table. - Partial fix for the lack of by-VA cache maintenance in the decompressor on 32-bit ARM. - Changes to load device firmware from EFI boot service memory regions - Various documentation updates and minor code cleanups and fixes" * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits) efi/libstub/arm: Fix spurious message that an initrd was loaded efi/libstub/arm64: Avoid image_base value from efi_loaded_image partitions/efi: Fix partition name parsing in GUID partition entry efi/x86: Fix cast of image argument efi/libstub/x86: Use ULONG_MAX as upper bound for all allocations efi: Fix a mistype in comments mentioning efivar_entry_iter_begin() efi/libstub: Avoid linking libstub/lib-ksyms.o into vmlinux efi/x86: Preserve %ebx correctly in efi_set_virtual_address_map() efi/x86: Ignore the memory attributes table on i386 efi/x86: Don't relocate the kernel unless necessary efi/x86: Remove extra headroom for setup block efi/x86: Add kernel preferred address to PE header efi/x86: Decompress at start of PE image load address x86/boot/compressed/32: Save the output address instead of recalculating it efi/libstub/x86: Deal with exit() boot service returning x86/boot: Use unsigned comparison for addresses efi/x86: Avoid using code32_start efi/x86: Make efi32_pe_entry() more readable efi/x86: Respect 32-bit ABI in efi32_pe_entry() efi/x86: Annotate the LOADED_IMAGE_PROTOCOL_GUID with SYM_DATA ...
| * | efi: Register EFI rtc platform device only when availableArd Biesheuvel2020-02-232-39/+0
| |/ | | | | | | | | | | | | | | | | | | Drop the separate driver that registers the EFI rtc on all EFI systems that have runtime services available, and instead, move the registration into the core EFI code, and make it conditional on whether the actual time related services are available. Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
generated by cgit v1.2.3-71-gd317 (git 2.46.0) at 2026-01-14 01:01:24 +0000