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path: root/drivers/rtc
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2020-03-16rtc: snvs: Use devm_add_action_or_reset() for calls to clk_disable_unprepare()Anson Huang
Use devm_add_action_or_reset() for calls to clk_disable_unprepare(), which can simplify the error handling. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1584109849-21402-1-git-send-email-Anson.Huang@nxp.com Link: https://lore.kernel.org/r/1584233264-26025-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: add support for the MediaTek MT2712 RTCRan Bi
This add support for the MediaTek MT2712 RTC. It was SoC based RTC, but had different architecture compared with MT7622 RTC. Signed-off-by: Ran Bi <ran.bi@mediatek.com> Link: https://lore.kernel.org/r/20200226051303.22560-3-ran.bi@mediatek.com Link: https://lore.kernel.org/r/20200316104701.209293-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: m48t35: remove SGI-IP27 kludgeThomas Bogendoerfer
With the IOC3 MFD driver it's no longer necessary to special case SGI-IP27. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Link: https://lore.kernel.org/r/20200309123514.15543-1-tsbogend@alpha.franken.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: sun6i: Make external 32k oscillator optionalJernej Skrabec
Some boards, like OrangePi PC2 (H5), OrangePi Plus 2E (H3) and Tanix TX6 (H6) don't have external 32kHz oscillator. Till H6, it didn't really matter if external oscillator was enabled because HW detected error and fall back to internal one. H6 has same functionality but it's the first SoC which have "auto switch bypass" bit documented and always enabled in driver. This prevents RTC to work correctly if external crystal is not present on board. There are other side effects - all peripherals which depends on this clock also don't work (HDMI CEC for example). Make clocks property optional. If it is present, select external oscillator. If not, stay on internal. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20200308135849.106333-2-jernej.skrabec@siol.net Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-03-16rtc: puv3: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: puv3: set rangeAlexandre Belloni
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>
2020-03-16rtc: ab8500: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: pl031: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: pl031: set rangeAlexandre Belloni
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>
2020-03-16rtc: pl031: remove useless invalid alarm handlingAlexandre Belloni
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>
2020-03-16rtc: fsl-ftm-alarm: allow COMPILE_TESTAlexandre Belloni
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>
2020-03-16rtc: mpc5121: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: mpc5121: set rangeAlexandre Belloni
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>
2020-03-16rtc: mpc5121: convert to devm_rtc_allocate_deviceAlexandre Belloni
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>
2020-03-16rtc: mpc5121: simplify probeAlexandre Belloni
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>
2020-03-16rtc: pm8xxx: stop validating valid alarm timeAlexandre Belloni
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>
2020-03-16rtc: pm8xxx: : switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: pm8xxx: set rangeAlexandre Belloni
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>
2020-03-16rtc: pm8xxx: convert to devm_rtc_allocate_deviceAlexandre Belloni
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>
2020-03-16rtc: ds1305: switch to rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: ds1305: set rangeAlexandre Belloni
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>
2020-03-16rtc: ds1374: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: ds1374: set rangeAlexandre Belloni
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>
2020-03-16rtc: ds1374: fix possible race conditionAlexandre Belloni
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>
2020-03-16rtc: cpcap: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: cpcap: set rangeAlexandre Belloni
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>
2020-03-16rtc: cpcap: convert to devm_rtc_allocate_deviceAlexandre Belloni
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>
2020-03-16rtc: sa1100: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: sa1100: set rangeAlexandre Belloni
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>
2020-03-16rtc: sa1100: fix possible race conditionAlexandre Belloni
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>
2020-03-16rtc: au1xxx: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: au1xxx: set rangeAlexandre Belloni
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>
2020-03-16rtc: au1xxx: remove goto labelAlexandre Belloni
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>
2020-03-16rtc: au1xxx: convert to devm_rtc_allocate_deviceAlexandre Belloni
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>
2020-03-16rtc: starfire: switch to rtc_time64_to_tmAlexandre Belloni
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>
2020-03-16rtc: starfire: set rangeAlexandre Belloni
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>
2020-03-16rtc: pl030: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: pl030: remove useless invalid alarm handlingAlexandre Belloni
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>
2020-03-16rtc: pl030: set rangeAlexandre Belloni
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>
2020-03-16rtc: davinci: remove useless error handlingAlexandre Belloni
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>
2020-03-16rtc: davinci: let the core handle rtc rangeAlexandre Belloni
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>
2020-03-16rtc: davinci: remove useless 24h alarm handlingAlexandre Belloni
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>
2020-03-16rtc: davinci: convert to devm_rtc_allocate_deviceAlexandre Belloni
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>
2020-03-16rtc: sirfsoc: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
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>
2020-03-16rtc: sirfsoc: set rangeAlexandre Belloni
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>
2020-03-16rtc: sirfsoc: convert to devm_rtc_allocate_deviceAlexandre Belloni
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>
2020-03-16rtc: snvs: Improve Kconfig dependencyAnson Huang
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>
2020-03-16rtc: sysfs: use kobj_to_devsuguosong
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>
2020-03-03rtc: cmos: Use spin_lock_irqsave() in cmos_interrupt()Ville Syrjälä
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>
2020-02-23efi: Register EFI rtc platform device only when availableArd Biesheuvel
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>
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