]>
 
 
www.infradead.org Git - users/jedix/linux-maple.git/log 
 
 
 
 
 
 
Alexandre Belloni [Fri, 19 Apr 2019 08:25:00 +0000  (10:25 +0200)] 
 
rtc: ds2404: remove ds2404_chip_ops 
 
There is only one ds2404_chip_ops struct that is implemented, remove the 
unnecessary indirection. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:24:59 +0000  (10:24 +0200)] 
 
rtc: ds2404: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:24:58 +0000  (10:24 +0200)] 
 
rtc: ds2404: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:24:57 +0000  (10:24 +0200)] 
 
rtc: ds2404: switch to rtc_time64_to_tm 
 
Call the 64bit version of rtc_time_to_tm now that the range is enforced by 
the core. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:24:56 +0000  (10:24 +0200)] 
 
rtc: ds2404: set range 
 
The real-time clock is a 5-byte binary counter. It is incremented 256 times 
per second. The least significant byte is a count of fractional seconds. 
The upper four bytes are a count of seconds. The realtime clock can 
accumulate 136 years of seconds before rolling over. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:00:05 +0000  (10:00 +0200)] 
 
rtc: ep93xx: fix checkpatch issues 
 
Fix sysfs attribute declaration as suggested by checkpatch. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:00:04 +0000  (10:00 +0200)] 
 
rtc: ep93xx: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:00:03 +0000  (10:00 +0200)] 
 
rtc: ep93xx: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:00:02 +0000  (10:00 +0200)] 
 
rtc: ep93xx: switch to rtc_time64_to_tm 
 
Call the 64bit version of rtc_time_to_tm now that the range is enforced by 
the core. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:00:01 +0000  (10:00 +0200)] 
 
rtc: ep93xx: set range 
 
The ep93xx RTC is a 32-bit seconds counter. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 08:00:00 +0000  (10:00 +0200)] 
 
rtc: ep93xx: use rtc_add_group 
 
Use rtc_add_group to add the sysfs group in a race free manner. 
This has the side effect of moving the files to their proper location. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 07:59:59 +0000  (09:59 +0200)] 
 
rtc: ep93xx: convert to devm_rtc_allocate_device 
 
This allows further improvement of the driver. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 19 Apr 2019 07:59:58 +0000  (09:59 +0200)] 
 
rtc: ep93xx: stop setting platform_data
Since commit 
28dc5f803899  ("drivers/rtc/rtc-ep93xx.c: use
dev_get_platdata()"), platform_data is not used directly, it is not
necessary to set it anymore.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> 
 
Han Nandor [Tue, 16 Apr 2019 10:57:54 +0000  (10:57 +0000)] 
 
rtc: ds3232: get SRAM access using NVMEM Framework 
 
DS3232 RTC has 236 bytes of persistent memory. 
 
Add RTC SRAM read and write access using 
the NVMEM Framework. 
 
Signed-off-by: Han Nandor <nandor.han@vaisala.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 16 Apr 2019 08:33:08 +0000  (10:33 +0200)] 
 
rtc: mc13xxx: fix style issue 
 
Use unsigned int instead of unsigned. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 16 Apr 2019 08:33:07 +0000  (10:33 +0200)] 
 
rtc: mc13xxx: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 16 Apr 2019 08:33:06 +0000  (10:33 +0200)] 
 
rtc: mc13xxx: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss64. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 16 Apr 2019 08:33:05 +0000  (10:33 +0200)] 
 
rtc: mc13xxx: set range 
 
All supported PMICs have a 15 bits days counter and hours, minutes, seconds 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Thomas Bogendoerfer [Tue, 16 Apr 2019 09:34:04 +0000  (11:34 +0200)] 
 
rtc: ds1685: use threaded interrupt 
 
Handling of extended interrupts (kickstart, wake-up, ram-clear) was 
moved off to a work queue, but the interrupts aren't acknowledged 
in the interrupt handler. This leads to a deadlock, if driver 
is used with interrupts. To fix this we use a threaded interrupt, get rid 
of the work queue and do locking with just the rtc mutex lock. 
 
Fixes: aaaf5fbf56f1 ("rtc: add driver for DS1685 family of real time clocks")  
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Thomas Bogendoerfer [Tue, 16 Apr 2019 09:34:03 +0000  (11:34 +0200)] 
 
rtc: ds1685: remove dead code 
 
ds1685_rtc_begin_ctrl_access/ds1685_rtc_end_ctrl_access aren't used, 
so get rid of it. 
 
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Thomas Bogendoerfer [Thu, 11 Apr 2019 14:33:21 +0000  (16:33 +0200)] 
 
rtc: ds1685: fix crash caused by referencing wrong device struct 
 
sysfs entries added by rtc_add_group are called with the rtc device 
as argument and not the underlying device. Fixed by using the dev->parent 
 
Fixes: cfb74916e2ec ("rtc: ds1685: use rtc_add_group")  
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 10:16:31 +0000  (12:16 +0200)] 
 
rtc: lpc32xx: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 10:16:30 +0000  (12:16 +0200)] 
 
rtc: lpc32xx: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 10:16:29 +0000  (12:16 +0200)] 
 
rtc: lpc32xx: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_tm time conversion now that the range is 
enforced by the core. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 10:16:28 +0000  (12:16 +0200)] 
 
rtc: lpc32xx: simplify IRQ setup 
 
Move the optional IRQ setup to a single location. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 10:16:27 +0000  (12:16 +0200)] 
 
rtc: lpc32xx: set range 
 
The LPC32xx RTC is a 32bit second counter. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 10:16:26 +0000  (12:16 +0200)] 
 
rtc: lpc32xx: convert to devm_rtc_allocate_device 
 
This allows further improvement of the driver. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Anson Huang [Thu, 11 Apr 2019 02:19:48 +0000  (02:19  +0000)] 
 
rtc: mxc_v2: use dev_pm_set_wake_irq() to simplify code 
 
With calling dev_pm_set_wake_irq() to set MXC_V2 RTC as wakeup source 
for suspend, generic wake irq mechanism will automatically enable 
it as wakeup source when suspend, then the suspend/resume callback 
which are ONLY for enabling/disabling irq wake can be removed, it 
simplifies the code. 
 
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Anson Huang [Thu, 11 Apr 2019 02:06:04 +0000  (02:06  +0000)] 
 
rtc: mxc: use dev_pm_set_wake_irq() to simplify code 
 
With calling dev_pm_set_wake_irq() to set MXC RTC as wakeup source 
for suspend, generic wake irq mechanism will automatically enable 
it as wakeup source when suspend, then the suspend/resume callback 
which are ONLY for enabling/disabling irq wake can be removed, it 
simplifies the code. 
 
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Andy Shevchenko [Wed, 10 Apr 2019 14:05:59 +0000  (17:05 +0300)] 
 
rtc: rx8025: Fix a parameter to %ptR in rx8025_read_alarm()
The commit 
1921cab11723  ("rtc: rx8025: Switch to use %ptR") converted
the driver to use new %p extension, but actually used wrong type of
the parameter in one case.
Fix a parameter to %ptR in rx8025_read_alarm().
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> 
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> 
 
YueHaibing [Wed, 10 Apr 2019 13:43:36 +0000  (21:43 +0800)] 
 
rtc: sirfsoc: Make sysrtc_regmap_config static 
 
Fix sparse warning: 
 
drivers/rtc/rtc-sirfsoc.c:282:28: warning: 
 symbol 'sysrtc_regmap_config' was not declared. Should it be static? 
 
Reported-by: Hulk Robot <hulkci@huawei.com>  
Signed-off-by: YueHaibing <yuehaibing@huawei.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 19:59:45 +0000  (21:59 +0200)] 
 
rtc: ab3100: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of the custom license line. 
 
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 19:59:44 +0000  (21:59 +0200)] 
 
rtc: ab3100: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss64. 
 
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 9 Apr 2019 19:59:43 +0000  (21:59 +0200)] 
 
rtc: ab3100: set range 
 
The ab3100 has a 48bit counter running at 65536 Hz (despite one of the 
comment). The max value is then (2^48 - 1)/2^16 == 2^32 - 1. 
 
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 10 Apr 2019 20:56:04 +0000  (22:56 +0200)] 
 
rtc: pcf85363: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 10 Apr 2019 20:56:03 +0000  (22:56 +0200)] 
 
rtc: pcf85363: remove useless forward declaration 
 
It is not necessary to forward declare pcf85363_driver as it is not used 
before being declared. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 10 Apr 2019 20:56:02 +0000  (22:56 +0200)] 
 
rtc: pcf85363: remove bogus i2c functionality check 
 
regmap is abstracting the i2c functionalities the best it can, there is no 
need to check. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 10 Apr 2019 20:56:01 +0000  (22:56 +0200)] 
 
rtc: pcf85363: set range 
 
This is a standard BCD RTC that will fail in 2100. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 10 Apr 2019 20:56:00 +0000  (22:56 +0200)] 
 
rtc: pcf85363: remove unused struct pcf85363 member 
 
pcf85363->dev is unused, remove it. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:12:23 +0000  (23:12 +0200)] 
 
rtc: stmp3xxx: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:12:22 +0000  (23:12 +0200)] 
 
rtc: stmp3xxx: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:12:21 +0000  (23:12 +0200)] 
 
rtc: stmp3xxx: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_tm time conversion now that the range is 
enforced by the core. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:12:20 +0000  (23:12 +0200)] 
 
rtc: stmp3xxx: set range 
 
From the datasheet: "HW_RTC_SECONDS provides access to the 32-bit real-time 
seconds counter." 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:16:46 +0000  (23:16 +0200)] 
 
rtc: tegra: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Acked-by: Thierry Reding <treding@nvidia.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:16:45 +0000  (23:16 +0200)] 
 
rtc: tegra: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_tm time conversion now that the range is 
enforced by the core. 
 
Acked-by: Thierry Reding <treding@nvidia.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:16:44 +0000  (23:16 +0200)] 
 
rtc: tegra: set range 
 
The Tegra 20 RTC is a 32bit seconds counter (with an unused millisecond 
counter). 
 
Acked-by: Thierry Reding <treding@nvidia.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:10:27 +0000  (23:10 +0200)] 
 
rtc: coh901331: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of the custom license line. 
 
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:10:26 +0000  (23:10 +0200)] 
 
rtc: coh901331: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss. 
 
Acked-by: Linus Walleij <linus.walleij@linaro.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:10:25 +0000  (23:10 +0200)] 
 
rtc: coh901331: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_tm time conversion now that the range is 
enforced by the core. 
 
Acked-by: Linus Walleij <linus.walleij@linaro.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:10:24 +0000  (23:10 +0200)] 
 
rtc: coh901331: set range 
 
The COH 901 331 is a 32bit seconds counter. 
 
Acked-by: Linus Walleij <linus.walleij@linaro.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:05:41 +0000  (23:05 +0200)] 
 
rtc: ds1672: switch debug message to %ptR 
 
Use %ptR to simplify debug message. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:05:40 +0000  (23:05 +0200)] 
 
rtc: ds1672: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:05:39 +0000  (23:05 +0200)] 
 
rtc: ds1672: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:05:38 +0000  (23:05 +0200)] 
 
rtc: ds1672: use rtc_time64_to_tm 
 
Use the 64bit version of rtc_time_to_tm.rtc_time_to_tm. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:05:37 +0000  (23:05 +0200)] 
 
rtc: ds1672: remove useless indirection 
 
ds1672_get_datetime and ds1672_set_mmss are only used after casting dev 
to an i2c_client. Remove that useless indirection. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:05:36 +0000  (23:05 +0200)] 
 
rtc: ds1672: remove sysfs debug interface 
 
Remove the control sysfs file as it is not documented, read only and was 
only used to provide the oscillator state. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:05:35 +0000  (23:05 +0200)] 
 
rtc: ds1672: move oscillator handling to .read_time 
 
Return -EINVAL when trying to read an invalid time instead of just probe 
because this is a useful information for userspace. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:05:34 +0000  (23:05 +0200)] 
 
rtc: ds1672: set range 
 
The ds1672 is a 32bit seconds counter. 
 
Also remove erroneous comment claiming that epoch is set to 2000, it was 
not. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Sun, 7 Apr 2019 21:30:12 +0000  (23:30 +0200)] 
 
rtc: test: use .set_time 
 
Use .set_time instead of the deprecated .set_mmss64. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Xuefeng Wang [Fri, 15 Feb 2019 03:13:59 +0000  (11:13 +0800)] 
 
rtc: lib: check whether tm->tm_year in int32 range
When setting rtc alarm (RTC_WKALM_SET), the tm_year is not checked if it
is in suiteable range. Use INT_MAX - 1900 to check it.
UBSAN: Undefined behaviour in drivers/rtc/rtc-lib.c:119:30
signed integer overflow:
2147483647  + 1900 cannot be represented in type 'int'
CPU: 1 PID: 20994 Comm: syz-executor0 Not tainted 4.19.18-514.55.6.9.x86_64
+ #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1
04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xca/0x13e lib/dump_stack.c:113
 ubsan_epilogue+0xe/0x81 lib/ubsan.c:159
 handle_overflow+0x193/0x1e2 lib/ubsan.c:190
 rtc_tm_to_time64+0x267/0x280 drivers/rtc/rtc-lib.c:119
 rtc_tm_to_ktime+0x16/0x70 drivers/rtc/rtc-lib.c:129
 rtc_set_alarm+0x1a9/0x2d0 drivers/rtc/interface.c:466
 rtc_dev_ioctl+0x6db/0x810 drivers/rtc/rtc-dev.c:380
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0x1a5/0x10b0 fs/ioctl.c:690
 ksys_ioctl+0x89/0xa0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x74/0xb0 fs/ioctl.c:710
 do_syscall_64+0xc8/0x580 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x462589
Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89
f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08
0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8
64 89 01 48
RSP: 002b:
00007f5348896c58  EFLAGS: 
00000246  ORIG_RAX: 
0000000000000010 
RAX: 
ffffffffffffffda  RBX: 
000000000072bf00  RCX: 
0000000000462589 
RDX: 
0000000020000000  RSI: 
000000004028700f  RDI: 
0000000000000003 
RBP: 
0000000000000003  R08: 
0000000000000000  R09: 
0000000000000000 
R10: 
0000000000000000  R11: 
0000000000000246  R12: 
00007f53488976bc 
R13: 
00000000004bf67e  R14: 
00000000006f96e0  R15: 
00000000ffffffff 
==========================================================================
Signed-off-by: Xuefeng Wang <wxf.wang@hisilicon.com> 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> 
 
Wolfram Sang [Wed, 3 Apr 2019 15:19:52 +0000  (17:19 +0200)] 
 
rtc: don't reference bogus function pointer in kdoc 
 
The mentioned function pointer is long gone since early 2011. Remove the 
reference in the comment and reword it slightly. 
 
Fixes: 51ba60c5bb3b ("RTC: Cleanup rtc_class_ops->update_irq_enable()")  
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Tue, 2 Apr 2019 21:54:47 +0000  (23:54 +0200)] 
 
rtc: remove unnecessary Kconfig dependencies 
 
Remove the unused "depends on I2C" as the config options are already 
guarded by if I2C. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:16 +0000  (18:08 +0200)] 
 
rtc: pcf85063: add RTC_VL_READ/RTC_VL_CLR support 
 
Allow reading the oscillator status bit. Also allow clearing it even if 
that makes little sense and can't be done in a race free way. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:15 +0000  (18:08 +0200)] 
 
rtc: pcf85063: add offset correction support 
 
The PCF850363 has an offset correction with two modes: 
 
With mode 0, the correction is triggered once every two hours and then 
correction pulses are applied once per minute until the programmed 
correction values have been implemented. This gives a step of 4.34 ppm. 
 
With mode 1, the correction is triggered once every four minutes and then 
correction pulses are applied once per second up to a maximum of 60 pulses. 
When correction values greater than 60 pulses are used, additional 
correction pulses are made in the 59 th second. This gives a step of 4.069 
ppm. 
 
Use the correction closest to the requested value. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:14 +0000  (18:08 +0200)] 
 
rtc: pcf85063: add nvram support 
 
The pcf85063 has one byte of nvram. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:13 +0000  (18:08 +0200)] 
 
rtc: pcf85063: add Micro Crystal RV8263 support 
 
The Micro Crystal RV8263 has the same IC as the pcf85063 but has an on 
board crystal. This means that the CAP_SEL bit has to be cleared so the 
correct capacitance is selected for the crystal. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:12 +0000  (18:08 +0200)] 
 
rtc: pcf85063: add alarm support 
 
Add support for the alarms. The match on the weekday is not used as it it 
not necessarily properly set. 
 
The tested RTC shows a behaviour where setting an alarm on the second right 
after an alarm that fired is not working, probably because of the circuit 
that ensures an alarm only fires once. This is why uie_unsupported is set. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:11 +0000  (18:08 +0200)] 
 
rtc: pcf85063: differentiate pcf85063a and pcf85063tp 
 
As stated in a comment pcf85063a and pcf85063tp don't have the same number 
of registers. Especially, pcf85063tp doesn't have alarm support. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:10 +0000  (18:08 +0200)] 
 
rtc: pcf85063: switch to regmap 
 
Switch to regmap to simplify register accesses and remove the need for 
pcf85063_stop_clock/pcf85063_start_clock. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:09 +0000  (18:08 +0200)] 
 
rtc: pcf85063: set range 
 
This is a standard BCD RTC that will fail in 2100. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:08 +0000  (18:08 +0200)] 
 
rtc: pcf85063: convert to devm_rtc_allocate_device 
 
This allows further improvement of the driver. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:07 +0000  (18:08 +0200)] 
 
rtc: pcf85063: remove bogus i2c functionality check 
 
Only smbus reads and write are done in the driver, plain i2c functionality 
is not required. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:33:49 +0000  (18:33 +0200)] 
 
rtc: pcf85063: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 1 Apr 2019 16:08:05 +0000  (18:08 +0200)] 
 
rtc: pcf85063: switch to probe_new 
 
struct i2c_device_id argument of probe() is not used, so use probe_new() 
instead. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Anson Huang [Mon, 1 Apr 2019 05:29:13 +0000  (05:29  +0000)] 
 
rtc: snvs: use devm_platform_ioremap_resource() to simplify code 
 
Use the new helper devm_platform_ioremap_resource() which wraps the 
platform_get_resource() and devm_ioremap_resource() together, to 
simplify the code. 
 
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Anson Huang [Mon, 1 Apr 2019 05:21:43 +0000  (05:21  +0000)] 
 
rtc: mxc: use devm_platform_ioremap_resource() to simplify code 
 
Use the new helper devm_platform_ioremap_resource() which wraps the 
platform_get_resource() and devm_ioremap_resource() together, to 
simplify the code. 
 
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Anson Huang [Wed, 27 Mar 2019 06:18:20 +0000  (06:18 +0000)] 
 
rtc: snvs: use dev_pm_set_wake_irq() to simplify code 
 
With calling dev_pm_set_wake_irq() to set SNVS RTC as wakeup 
source for suspend, generic wake irq mechanism will automatically 
enable it as wakeup source when suspend, then the suspend/resume 
callback which are ONLY for enabling/disabling irq wake can be 
removed, it simplifies the code. 
 
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Joel Stanley [Wed, 27 Mar 2019 01:02:15 +0000  (11:32 +1030)] 
 
rtc: Add ASPEED RTC driver 
 
Read and writes the time to the non-battery backed RTC in the ASPEED BMC 
system on chip families. 
 
Signed-off-by: Joel Stanley <joel@jms.id.au>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Joel Stanley [Wed, 27 Mar 2019 01:02:14 +0000  (11:32 +1030)] 
 
dt-bindings: rtc: Add on-chip ASPEED RTC documentation 
 
Describe the RTC as used in the ASPEED BMC SoCs. 
 
Signed-off-by: Joel Stanley <joel@jms.id.au>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 25 Mar 2019 17:17:19 +0000  (18:17 +0100)] 
 
rtc: brcmstb-waketimer: switch to rtc_time64_to_tm 
 
Call the 64bit version of rtc_time_to_tm as the range is enforced by the 
core. 
 
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Pi-Hsun Shih [Mon, 11 Mar 2019 07:55:40 +0000  (15:55 +0800)] 
 
rtc: mt6397: Don't call irq_dispose_mapping. 
 
The IRQ mapping was changed to not being created in the rtc-mt6397 
driver, so the irq_dispose_mapping is no longer needed. 
Also the dev_id passed to free_irq should be the same as the last 
argument passed to request_threaded_irq. 
This prevents a "Trying to free already-free IRQ 274" warning when 
unbinding the driver. 
 
Fixes: e695d3a0b3b3 ("mfd: mt6397: Create irq mappings in mfd core driver")  
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
YueHaibing [Tue, 19 Mar 2019 15:25:31 +0000  (23:25 +0800)] 
 
rtc: opal: Make opal_tpo_alarm_irq_enable static 
 
Fix sparse warning: 
 
drivers/rtc/rtc-opal.c:227:5: 
 warning: symbol 'opal_tpo_alarm_irq_enable' was not declared. Should it be static? 
 
Signed-off-by: YueHaibing <yuehaibing@huawei.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Geert Uytterhoeven [Fri, 22 Mar 2019 07:26:12 +0000  (08:26 +0100)] 
 
rtc: Fix timestamp value for RTC_TIMESTAMP_BEGIN_1900
Printing "mktime64(1900, 1, 1, 0, 0, 0)" gives -
2208988800 .
Fixes: 83bbc5ac63326433 ("rtc: Add useful timestamp definitions") 
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> 
 
Alexandre Belloni [Fri, 22 Mar 2019 07:16:11 +0000  (08:16 +0100)] 
 
rtc: wm831x: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 22 Mar 2019 07:16:10 +0000  (08:16 +0100)] 
 
rtc: wm831x: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_tm time conversion now that the range is 
enforced by the core. 
 
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 22 Mar 2019 07:16:09 +0000  (08:16 +0100)] 
 
rtc: wm831x: remove unnecessary goto 
 
There is no specific handling in the error path of wm831x_rtc_probe, remove 
the unnecessary goto and label. 
 
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 22 Mar 2019 07:16:08 +0000  (08:16 +0100)] 
 
rtc: wm831x: set range 
 
The wm831x has a 32bit second counter. 
 
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Thu, 21 Mar 2019 10:15:57 +0000  (11:15 +0100)] 
 
rtc: da9063: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_tm time conversion now that the range is 
enforced by the core. 
 
Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Thu, 21 Mar 2019 10:15:56 +0000  (11:15 +0100)] 
 
rtc: da9063: set range 
 
The DA9062 and DA9063 have a year register that can go up to 0x3F. 
 
Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 22 Mar 2019 07:22:56 +0000  (08:22 +0100)] 
 
rtc: sun4v: switch to SPDX identifier 
 
Use SPDX-License-Identifier to be clearer on the license. Choose the v2 
only as this is the default Linux license. 
 
Acked-by: David S. Miller <davem@davemloft.net>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 22 Mar 2019 07:22:55 +0000  (08:22 +0100)] 
 
rtc: sun4v: set range 
 
The Sun4v Hypervisor Core API Specification states: 
Time is described by a single unsigned 64-bit word equivalent to a time_t 
for the POSIX time(2) system call. The word contains the time since the 
Epoch (00:00:00 UTC, January 1, 1970), measured in seconds. 
 
Acked-by: David S. Miller <davem@davemloft.net>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Fri, 22 Mar 2019 07:22:54 +0000  (08:22 +0100)] 
 
rtc: sun4v: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_tm time conversion as the hypervisor handles 
64bit values. 
 
Acked-by: David S. Miller <davem@davemloft.net>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 18 Mar 2019 13:22:55 +0000  (14:22 +0100)] 
 
rtc: omap: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Mon, 18 Mar 2019 13:26:08 +0000  (14:26 +0100)] 
 
rtc: omap: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_time_to_tm now that the range is enforced by 
the core. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 20 Mar 2019 12:44:28 +0000  (13:44 +0100)] 
 
rtc: ps3: set range 
 
The PS3 has a 64bit second counter from 2000. While this exceeds the 64bit 
UNIX timestamp, there is not doubt that non of them will still be working 
by then. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 20 Mar 2019 12:44:27 +0000  (13:44 +0100)] 
 
rtc: ps3: convert to devm_rtc_allocate_device 
 
This allows further improvement of the driver. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 20 Mar 2019 12:44:26 +0000  (13:44 +0100)] 
 
rtc: ps3: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text. 
 
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 20 Mar 2019 12:44:25 +0000  (13:44 +0100)] 
 
rtc: ps3: switch to rtc_time64_to_tm/rtc_tm_to_time64 
 
Call the 64bit versions of rtc_tm time conversion as the PS3 handles 64bit 
values. 
 
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 20 Mar 2019 12:40:42 +0000  (13:40 +0100)] 
 
rtc: at91sam9: correct trivial checkpatch warnings 
 
Correct trivial checkpatch warnings, mostly whitespace issues and 
unbalanced braces. 
 
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>  
Alexandre Belloni [Wed, 20 Mar 2019 12:40:41 +0000  (13:40 +0100)] 
 
rtc: at91sam9: convert to SPDX identifier 
 
Use SPDX-License-Identifier instead of a verbose license text 
 
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>  
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>