- 05 Sep, 2015 40 commits
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Rob Herring authored
Factor out the RTC initialization from the platform device specific parts in order to share the RTC device ops with other drivers. Specifically, it will be shared with rtc-pxa driver. Signed-off-by:
Rob Herring <robh@kernel.org> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Russell King <linux@arm.linux.org.uk> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: rtc-linux@googlegroups.com Signed-off-by:
Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Wang Dongsheng authored
If ds3232 work on some platform that is not implementing irq_set_wake, ds3232 will get a WARNING trace in resume. So fix ds3232->suspended state to false when irq_set_irq_wake return error. WARNING: CPU: 0 PID: 729 at kernel/irq/manage.c:604 irq_set_irq_wake+0x4b/0x8c() Unbalanced IRQ 201 wake disable Modules linked in: CPU: 0 PID: 729 Comm: sh Not tainted 3.12.19-rt30+ #25 [<800107d9>] (unwind_backtrace+0x1/0x88) from [<8000e4ef>] (show_stack+0xb/0xc) [<8000e4ef>] (show_stack+0xb/0xc) from [<802b5fa9>] (dump_stack+0x4d/0x60) [<802b5fa9>] (dump_stack+0x4d/0x60) from [<800186dd>] (warn_slowpath_common+0x45/0x64) [<800186dd>] (warn_slowpath_common+0x45/0x64) from [<80018717>] (warn_slowpath_fmt+0x1b/0x24) [<80018717>] (warn_slowpath_fmt+0x1b/0x24) from [<8003a8d3>] (irq_set_irq_wake+0x4b/0x8c) [<8003a8d3>] (irq_set_irq_wake+0x4b/0x8c) from [<80204fcb>] (ds3232_resume+0x2d/0x36) [<80204fcb>] (ds3232_resume+0x2d/0x36) from [<801954c7>] (dpm_run_callback.isra.13+0xb/0x28) [<801954c7>] (dpm_run_callback.isra.13+0xb/0x28) from [<80195b1b>] (device_resume+0x7b/0xa2) [<80195b1b>] (device_resume+0x7b/0xa2) from [<80195f0f>] (dpm_resume+0xbb/0x19c) [<80195f0f>] (dpm_resume+0xbb/0x19c) from [<801960d9>] (dpm_resume_end+0x9/0x12) [<801960d9>] (dpm_resume_end+0x9/0x12) from [<80037e1d>] (suspend_devices_and_enter+0x17d/0x1d0) [<80037e1d>] (suspend_devices_and_enter+0x17d/0x1d0) from [<80037ee1>] (pm_suspend+0x71/0x128) [<80037ee1>] (pm_suspend+0x71/0x128) from [<80037449>] (state_store+0x6d/0x80) [<80037449>] (state_store+0x6d/0x80) from [<800af4d5>] (sysfs_write_file+0x9f/0xde) [<800af4d5>] (sysfs_write_file+0x9f/0xde) from [<8007a437>] (vfs_write+0x7b/0x104) [<8007a437>] (vfs_write+0x7b/0x104) from [<8007a7f7>] (SyS_write+0x27/0x48) [<8007a7f7>] (SyS_write+0x27/0x48) from [<8000c121>] (ret_fast_syscall+0x1/0x44) Signed-off-by:
Wang Dongsheng <dongsheng.wang@freescale.com> Signed-off-by:
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Joonyoung Shim authored
It's unnecessary the code that assigns info->rtc_clk to NULL in s3c_rtc_remove. Signed-off-by:
Joonyoung Shim <jy0922.shim@samsung.com> Reviewed-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by:
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Joonyoung Shim authored
It's missed to call clk_unprepare() about info->rtc_src_clk in s3c_rtc_remove and to call clk_disable_unprepare about info->rtc_clk in error routine of s3c_rtc_probe. Signed-off-by:
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Joonyoung Shim authored
The clock enable/disable codes for alarm have been removed from commit 24e14554 ("drivers/rtc/rtc-s3c.c: delete duplicate clock control") and the clocks are disabled even if alarm is set, so alarm interrupt can't happen. The s3c_rtc_setaie function can be called several times with 'enabled' argument having same value, so it needs to check whether clocks are enabled or not. Signed-off-by:
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Alexandre Belloni authored
Definitions from linux/platform_data/atmel.h are not used, remove the include. Signed-off-by: -
Alexandre Belloni authored
This driver is using device tree but is not including of.h Signed-off-by: -
Nadav Haklai authored
According to the Armada38x functional errata FE-3124064, writing to the RTC TIME register may fail. As a workaround, after writing to RTC TIME register, issue a dummy write of 0x0 twice to the RTC Status register. This is the updated implementation of the Errata that eliminates the need of the long 100ms delay during the RTC set time procedure. [gregory.clement@free-electrons.com]: removed the mutex and use the spinlock again Signed-off-by:
Nadav Haklai <nadavh@marvell.com> Reviewed-by:
Neta Zur Hershkovits <neta@marvell.com> Signed-off-by:
Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by:
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Alexandre Belloni authored
Check time validity when reading time as this is when we need to know. Signed-off-by: -
Alexandre Belloni authored
RX8025_BIT_CTRL2_CTFG was set to 0 only when it was already 0. Signed-off-by: -
Alexandre Belloni authored
irq_freq is already initialized to 1 in rtc_device_register() Signed-off-by: -
Alexandre Belloni authored
Wait for the user to set the time to reset the validity bits. Until then, the time may be invalid. Signed-off-by: -
Alexandre Belloni authored
rx8025_init_client is modifying ctrl[0] and writing it to RX8025_REG_CTRL2 but ctrl[0] is actually RX8025_REG_CTRL1. Signed-off-by: -
Alexandre Belloni authored
Instead of bailing out, disable alarms and continue when devm_request_threaded_irq() fails. This allows to still provide some functionality. Signed-off-by: -
Alexandre Belloni authored
Remove useless error messages, at that point, the user already knows something went wrong but will not be able to do anything about it anyway. It is also highly unlikely that some registers are readable/writable but not some other ones. Also, transform rx8025_read_reg to be more resemblant to i2c_smbus_read_byte_data() Signed-off-by: -
Alexandre Belloni authored
Stop setting the time to epoch when it is invalid. The proper way to handle that is to return an error when it is invalid instead of returning an incorrect value. Signed-off-by: -
Alexandre Belloni authored
The datasheet specifies that transfer mode must be 0 for write and either 0x4 (simplified read) or 0 (standard read). 0x8 is not specified, use standard mode. Signed-off-by: -
Alexandre Belloni authored
The hardware is only capable of handling dates between 2000 and 2099, enforce that. Signed-off-by: -
Alexandre Belloni authored
Use BIT() instead of hand coding. Signed-off-by: -
Alexandre Belloni authored
It is useless to print a message when probe fails as the user is already aware that it failed. Signed-off-by: -
Alexandre Belloni authored
Use devm_request_threaded_irq() so it is not necessary to call free_irq() explicitly. Signed-off-by: -
Alexandre Belloni authored
The driver currently emulates the concept of threaded IRQ using a workqueue, switch to threaded IRQ instead. Signed-off-by: -
Alexandre Belloni authored
Remove the useless includes and order the remaining ones alphabetically. Signed-off-by: -
Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Signed-off-by:
Vladimir Zapolskiy <vz@mleia.com> Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Spinlock acquisition/release is moved out of the loop body to get atomic states of NVRAM reading and writing operations. Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c The change enables burst mode of access to SRAM for any read()/write() operations, it is worth to mention that this may influence on userspace, for instance prior to the change read(fd, buf, 1); read(fd, buf + 1, 1); and read(fd, buf, 2); sequences of syscalls over DS1511's sysfs "nvram" fd led to different DS1511 state changes and/or buf content, if some userspace applications are written specifically for DS1511 and exploit this strange "feature", they may be impacted. Also the change corrects NVRAM size accessible to userspace from 255 bytes to 256 bytes. Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller size in fs/sysfs/file.c Signed-off-by:
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Vladimir Zapolskiy authored
The change removes redundant sysfs binary file boundary checks, since this task is already done on caller side in fs/sysfs/file.c Signed-off-by:
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Sylvain Chouleur authored
If century field is supported by the RTC CMOS device, then we should use it and then do not consider years greater that 169 as an error. For information, the year field of the rtc_time structure contains the value to add to 1970 to obtain the current year. This was a hack to be able to support years for 1970 to 2069. This patch remains compatible with this implementation. Signed-off-by:
Sylvain Chouleur <sylvain.chouleur@intel.com> Signed-off-by:
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Alexandre Belloni authored
Commit dca1a4b5 ("clk: at91: keep slow clk enabled to prevent system hang") added a workaround for the slow clock as it is not properly handled by its users. Get and use the slow clock as it is necessary for the at91rm9200 rtc. Acked-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by:
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kbuild test robot authored
drivers/rtc/rtc-gemini.c:151:1-3: WARNING: PTR_ERR_OR_ZERO can be used Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR Generated by: scripts/coccinelle/api/ptr_ret.cocci Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
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viresh kumar authored
IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. gemini driver was using likely() for a failure case while the rtc driver is getting registered. That looks wrong and it should really be unlikely. But because we are killing all the unlikely() flags, lets kill that too. Signed-off-by:
Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by:
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Alexandre Belloni authored
Sort included headers alphabetically. Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com>
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Alexandre Belloni authored
See help for clk_get_rate(): "obtain the current clock rate (in Hz) for a clock source. This is only valid once the clock source has been enabled." It currently returns the correct value but that may not stay that way. Signed-off-by:
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