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2015-09-05ARM: dts: AM437x: Add the internal and external clock nodes for rtcKeerthy5-0/+37
rtc can either be supplied from internal 32k clock or external crystal generated 32k clock. Internal clock is SOC specific and the external clock is board dependent. Adding the corresponding nodes. Signed-off-by: Keerthy <j-keerthy@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: s5m: fix to update ctrl registerJoonyoung Shim1-0/+10
According to datasheet, the S2MPS13X and S2MPS14X should update write buffer via setting WUDR bit to high after ctrl register is written. If not, ALARM interrupt of rtc-s5m doesn't happen first time when i use tools/testing/selftests/timers/rtctest.c test program and hour format is used to 12 hour mode in Odroid-XU3 board. One more issue is the RTC doesn't keep time on Odroid-XU3 board when i turn on board after power off even if RTC battery is connected. It can be solved as setting WUDR & RUDR bits to high at the same time after RTC_CTRL register is written. It's same with condition of only writing ALARM registers, so this is for only S2MPS14 and we should set WUDR & A_UDR bits to high on S2MPS13. I can't find any reasonable description about this like fix from datasheet, but can find similar codes from rtc driver source of hardkernel kernel and vendor kernel. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Cc: <stable@vger.kernel.org> # v3.16 Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: add xilinx zynqmp rtc driverSuneel Garapati3-0/+287
Add support for RTC controller found on Xilinx Zynq Ultrascale+ MPSoC platform. Signed-off-by: Suneel Garapati <suneel.garapati@xilinx.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05devicetree: bindings: rtc: add bindings for xilinx zynqmp rtcSuneel Garapati1-0/+25
adds file for description on device node bindings for RTC found on Xilinx Zynq Ultrascale+ MPSoC. Signed-off-by: Suneel Garapati <suneel.garapati@xilinx.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: as3722: correct month valueBibek Basu1-2/+2
The RTC month value is 1-indexed, but the kernel assumes it is 0-indexed. This may result in the RTC not rolling over correctly. Signed-off-by: Bibek Basu <bbasu@nvidia.com> Signed-off-by: Felix Janda <felix.janda@posteo.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05ARM: config: Switch PXA27x platforms to use PXA RTC driverRob Herring6-6/+6
With the SA1100 and PXA RTC drivers be mutually exclusive and no longer sharing hardware, PXA27x/PXA3xx platforms must use the PXA RTC driver as the SA1100 platform device is no longer registered. This change should be almost transparent to userspace. Former users of pxa-rtc should be aware that 2 RTCs will be available on their kernels, rtc0 being sa1100-rtc and rtc1 being pxa-rtc. Any userspace relying on the fact that rtc0 was pxa-rtc should be fixed. As a consequence: - the first reboot after the switch will have the wrong time, - on dual boot platform where the other OS programs some logic into the sa1100 rtc IP, a lack of fix in userspace, ie. a kernel changing sa1100-rtc thinking it is pxa-rtc could have dire consequence, such as wiping the other OS data partition. (Thanks to Robert Jarmik for help on the above commit text.) Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Sergey Lapin <slapin@ossfans.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mike Rapoport <mike@compulab.co.il> Cc: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05ARM: mmp: remove unused RTC register definitionsRob Herring1-23/+0
Now that register definitions have been moved to the driver, regs-rtc.h is no longer used and can be removed. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05ARM: sa1100: remove unused RTC register definitionsRob Herring1-34/+0
Now that register definitions have been moved to the driver, we can remove them from machine specific code. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: sa1100/pxa: convert to run-time register mappingRob Herring3-27/+63
SA1100 and PXA differ only in register offsets which are currently hardcoded in a machine specific header. Some arm64 platforms (PXA1928) have this RTC block as well (and not the PXA270 variant). Convert the driver to use ioremap and set the register offsets dynamically. Since we are touching all the register accesses, convert them all to readl_relaxed/writel_relaxed. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> 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>
2015-09-05ARM: pxa: add memory resource to SA1100 RTC deviceRob Herring1-16/+2
The drivers for the SA1100 and PXA RTCs are now mutually exclusive, so add the memory resource for the sa1100-rtc device. Since the memory resource is already present in the pxa_rtc_resources, that makes sa1100_rtc_resources and pxa_rtc_resources equivalent, so use pxa_rtc_resources for both devices and remove the duplicate sa1100_rtc_resources. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: pxa: convert to use shared sa1100 functionsRob Herring4-34/+31
Currently, the rtc-sa1100 and rtc-pxa drivers co-exist as rtc-pxa has a superset of functionality. Having 2 drivers sharing the same memory resource is not allowed by the driver model if resources are properly declared. This problem was avoided by not adding memory resources to the SA1100 RTC driver, but that prevents clean-up of the SA1100 driver. This commit converts the PXA RTC to use the exported SA1100 RTC functions. Now the sa1100-rtc and pxa-rtc devices are mutually exclusive, so we must remove the sa1100-rtc from pxa27x and pxa3xx. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> 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: linux-arm-kernel@lists.infradead.org Cc: rtc-linux@googlegroups.com Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: sa1100: prepare to share sa1100_rtc_opsRob Herring2-29/+49
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>
2015-09-05rtc: ds3232: fix WARNING trace in resume functionWang Dongsheng1-1/+4
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: s3c: remove unnecessary NULL assignmentJoonyoung Shim1-1/+0
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: s3c: add missing clk controlJoonyoung Shim1-0/+3
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: Joonyoung Shim <jy0922.shim@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: s3c: fix disabled clocks for alarmJoonyoung Shim1-6/+18
The clock enable/disable codes for alarm have been removed from commit 24e1455493da ("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: Joonyoung Shim <jy0922.shim@samsung.com> Cc: <stable@vger.kernel.org> # v4.1 Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: at91sam9: remove useless includeAlexandre Belloni1-1/+0
Definitions from linux/platform_data/atmel.h are not used, remove the include. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: at91sam9: include linux/of.hAlexandre Belloni1-0/+1
This driver is using device tree but is not including of.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: armada38x: Align RTC set time procedure with the official errataNadav Haklai1-20/+12
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: check time validity when necessaryAlexandre Belloni1-29/+29
Check time validity when reading time as this is when we need to know. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: fix RX8025_BIT_CTRL2_CTFG initializationAlexandre Belloni1-1/+1
RX8025_BIT_CTRL2_CTFG was set to 0 only when it was already 0. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: remove useless initializationAlexandre Belloni1-1/+0
irq_freq is already initialized to 1 in rtc_device_register() Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: reset validity when setting timeAlexandre Belloni1-11/+20
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 <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: fix rx8025_init_client()Alexandre Belloni1-1/+1
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 <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: continue without alarm when irq request failsAlexandre Belloni1-2/+2
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 <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: cleanup accessorsAlexandre Belloni1-54/+31
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 <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: don't reset the timeAlexandre Belloni1-16/+22
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 <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: fix transfer modeAlexandre Belloni1-3/+3
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 <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: only handle dates between 2000 and 2099Alexandre Belloni1-10/+4
The hardware is only capable of handling dates between 2000 and 2099, enforce that. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: use BIT()Alexandre Belloni1-11/+12
Use BIT() instead of hand coding. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: remove useless probe error messageAlexandre Belloni1-16/+6
It is useless to print a message when probe fails as the user is already aware that it failed. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: switch to managed irq allocationAlexandre Belloni1-10/+4
Use devm_request_threaded_irq() so it is not necessary to call free_irq() explicitly. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: Convert to threaded IRQAlexandre Belloni1-33/+4
The driver currently emulates the concept of threaded IRQ using a workqueue, switch to threaded IRQ instead. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rx8025: remove useless headers and reorder themAlexandre Belloni1-5/+2
Remove the useless includes and order the remaining ones alphabetically. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: tx4939: clean up tx4939_rtc_nvram_read()/tx4939_rtc_nvram_write()Vladimir Zapolskiy1-4/+2
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: stk17ta8: clean up stk17ta8_nvram_read()/stk17ta8_nvram_write()Vladimir Zapolskiy1-2/+2
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: rp5c01: clean up rp5c01_nvram_read()/rp5c01_nvram_write()Vladimir Zapolskiy1-2/+2
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: m48t59: clean up m48t59_nvram_read()/m48t59_nvram_write()Vladimir Zapolskiy1-8/+10
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: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: ds1742: clean up ds1742_nvram_read()/ds1742_nvram_write()Vladimir Zapolskiy1-2/+2
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: ds1553: clean up ds1553_nvram_read()/ds1553_nvram_write()Vladimir Zapolskiy1-2/+2
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: ds1511: clean up ds1511_nvram_read()/ds1511_nvram_write()Vladimir Zapolskiy1-37/+5
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: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: ds1343: clean up ds1343_nvram_read()/ds1343_nvram_write()Vladimir Zapolskiy1-12/+0
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: ds1307: clean up ds1307_nvram_read()/ds1307_nvram_write()Vladimir Zapolskiy1-14/+0
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: ds1305: clean up ds1305_nvram_read()/ds1305_nvram_write()Vladimir Zapolskiy1-18/+0
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: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: cmos: clean up cmos_nvram_read()/cmos_nvram_write()Vladimir Zapolskiy1-13/+0
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: cmos: century supportSylvain Chouleur1-0/+29
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: at91rm9200: get and use slow clockAlexandre Belloni1-3/+24
Commit dca1a4b5ff6e ("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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: gemini: fix ptr_ret.cocci warningskbuild test robot1-4/+1
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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: Drop (un)likely before IS_ERR(_OR_NULL)viresh kumar3-3/+3
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: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05rtc: at91rm9200: sort headers alphabeticallyAlexandre Belloni1-8/+8
Sort included headers alphabetically. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-19 23:58:03 +0300