kernel/drivers/rtc/rtc-sirfsoc.c, branch linux-4.16.y

rtc: sirfsoc: move to regmap APIs from platform-specific APIs

2015-09-05T11:19:06Z

The current codes use CSR platform specific API exported by machine codes to read/write RTC registers. they are: sirfsoc_rtc_iobrg_readl() sirfsoc_rtc_iobrg_writel() commit b1999477ed91 ("ARM: prima2: move to use REGMAP APIs for rtciobrg") moves to regmap support, now we can move to use regmap APIs in RTC driver. Signed-off-by: Guo Zeng Signed-off-by: Barry Song Signed-off-by: Alexandre Belloni

Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2014-12-15T00:10:09Z

Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev__once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...

drivers/rtc/rtc-sirfsoc.c: replace local_irq_disable by spin_lock_irq for SMP safety

2014-12-11T01:41:15Z

Signed-off-by: Barry Song Cc: hao liu Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/rtc/rtc-sirfsoc.c: add alarm_irq_enable support

2014-12-11T01:41:15Z

Add missed alarm_irq_enable() callback for CSR SiRFSoC RTCs. [akpm@linux-foundation.org: remove unneeded cast] Signed-off-by: hao liu Signed-off-by: Barry Song Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/rtc/rtc-sirfsoc.c: move hardware initilization earlier in probe

2014-12-11T01:41:13Z

Move rtc register to be later than hardware initialization. The reason is that devm_rtc_device_register() will do read_time() which is a callback accessing hardware. This sometimes causes a hang in the hardware related callback. Signed-off-by: Guo Zeng Signed-off-by: Barry Song Cc: Alessandro Zummo Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: drop owner assignment from platform_drivers

2014-10-20T14:21:31Z

A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang

drivers/rtc/rtc-sirfsoc.c: fix kernel panic of backing from hibernation

2014-04-03T23:21:19Z

RTC settings will be lost if power supply is cut off after hibernation finished, but the current "restore" function does not restore RTC related settings, this causes rtc_read_time failure and kernel panic: rtc rtc0: **** DPM device timeout **** Stack trace: unwind_backtrace+0x0/0xf4 show_stack+0x10/0x14 dpm_wd_handler+0x24/0x28 call_timer_fn.isra.33+0x24/0x88 run_timer_softirq+0x178/0x1f0 __do_softirq+0x120/0x200 do_softirq+0x54/0x5c irq_exit+0x9c/0xd0 handle_IRQ+0x44/0x90 __irq_svc+0x40/0x70 _raw_spin_unlock_irqrestore+0x10/0x48 sirfsoc_rtc_iobrg_readl+0x34/0x3c sirfsoc_rtc_read_time+0x24/0x48 __rtc_read_time.isra.3+0x48/0x5c rtc_read_time+0x30/0x44 rtc_resume.part.9+0x20/0x104 rtc_resume+0x5c/0x64 dpm_run_callback.isra.4+0x2c/0x74 device_resume+0x9c/0x144 dpm_resume+0x100/0x224 hibernation_snapshot+0x170/0x398 hibernate+0x13c/0x1d8 state_store+0xb4/0xb8 kobj_attr_store+0x14/0x20 sysfs_write_file+0x160/0x190 vfs_write+0xb4/0x194 SyS_write+0x3c/0x78 this patch uses SIMPLE_DEV_PM_OPS() to make restore() execute the existing resume() function which will restore the set of RTC. Signed-off-by: Xianglong Du Signed-off-by: Barry Song Cc: Grant Likely Cc: Rob Herring Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: rtc-sirfsoc: remove unnecessary OOM messages

2014-04-03T23:21:18Z

The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han Acked-by: Barry Song Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/rtc/rtc-sirfsoc.c: remove redundant of_match_ptr

2013-11-13T03:09:30Z

The data structure of_match_ptr() protects is always compiled in. Hence of_match_ptr() is not needed. Signed-off-by: Sachin Kamat Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/rtc/rtc-sirfsoc.c: remove unneeded casts of void*

2013-11-13T03:09:28Z

Signed-off-by: Jingoo Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds