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path: root/drivers/rtc
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2013-02-11drivers/rtc/rtc-isl1208.c: call rtc_update_irq() from the alarm irq handlerJan Luebbe1-0/+3
commit 72fca4a4b32dc778b5b885c3498700e42b610d49 upstream. Previously the alarm event was not propagated into the RTC subsystem. By adding a call to rtc_update_irq, this fixes a timeout problem with the hwclock utility. Signed-off-by: Jan Luebbe <jlu@pengutronix.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11drivers/rtc/rtc-vt8500.c: fix handling of data passed in struct rtc_timeTony Prisk1-3/+4
commit 2f90b68309683f2c5765a1b04ca23d71e51f1494 upstream. tm_mon is 0..11, whereas vt8500 expects 1..12 for the month field, causing invalid date errors for January, and causing the day field to roll over incorrectly. The century flag is only handled in vt8500_rtc_read_time, but not set in vt8500_rtc_set_time. This patch corrects the behaviour of the century flag. Signed-off-by: Edgar Toernig <froese@gmx.de> Signed-off-by: Tony Prisk <linux@prisktech.co.nz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11drivers/rtc/rtc-vt8500.c: correct handling of CR_24H bitfieldTony Prisk1-2/+2
commit 532db570e5181abc8f4f7bfa6c77c69ec2240198 upstream. Control register bitfield for 12H/24H mode is handled incorrectly. Setting CR_24H actually enables 12H mode. This patch renames the define and changes the initialization code to correctly set 24H mode. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> Cc: Edgar Toernig <froese@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31drivers/rtc/rtc-imxdi.c: add missing spin lock initializationJan Luebbe1-0/+2
commit fee0de7791f967c2c5f0d43eb7b7261761b45e64 upstream. Signed-off-by: Jan Luebbe <jlu@pengutronix.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Roland Stigge <stigge@antcom.de> Cc: Grant Likely <grant.likely@secretlab.ca> Tested-by: Roland Stigge <stigge@antcom.de> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-02drivers/rtc/rtc-rs5c348.c: fix hour decoding in 12-hour modeAtsushi Nemoto1-2/+5
commit 7dbfb315b2aaef0a115765946bf3026d074c33a7 upstream. Correct the offset by subtracting 20 from tm_hour before taking the modulo 12. [ "Why 20?" I hear you ask. Or at least I did. Here's the reason why: RS5C348_BIT_PM is 32, and is - stupidly - included in the RS5C348_HOURS_MASK define. So it's really subtracting out that bit to get "hour+12". But then because it does things modulo 12, it needs to add the 12 in again afterwards anyway. This code is confused. It would be much clearer if RS5C348_HOURS_MASK just didn't include the RS5C348_BIT_PM bit at all, then it wouldn't need to do the silly subtract either. Whatever. It's all just math, the end result is the same. - Linus ] Reported-by: James Nute <newten82@gmail.com> Tested-by: James Nute <newten82@gmail.com> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-02drivers/rtc/rtc-twl.c: ensure all interrupts are disabled during probeKevin Hilman1-0/+5
commit 8dcebaa9a0ae8a0487f4342f3d56d2cb1c980860 upstream. On some platforms, bootloaders are known to do some interesting RTC programming. Without going into the obscurities as to why this may be the case, suffice it to say the the driver should not make any assumptions about the state of the RTC when the driver loads. In particular, the driver probe should be sure that all interrupts are disabled until otherwise programmed. This was discovered when finding bursty I2C traffic every second on Overo platforms. This I2C overhead was keeping the SoC from hitting deep power states. The cause was found to be the RTC firing every second on the I2C-connected TWL PMIC. Special thanks to Felipe Balbi for suggesting to look for a rogue driver as the source of the I2C traffic rather than the I2C driver itself. Special thanks to Steve Sakoman for helping track down the source of the continuous RTC interrups on the Overo boards. Signed-off-by: Kevin Hilman <khilman@ti.com> Cc: Felipe Balbi <balbi@ti.com> Tested-by: Steve Sakoman <steve@sakoman.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Tested-by: Shubhrajyoti Datta <omaplinuxkernel@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-15rtc: wm831x: Feed the write counter into device_add_randomness()Mark Brown1-1/+23
commit 9dccf55f4cb011a7552a8a2749a580662f5ed8ed upstream. The tamper evident features of the RTC include the "write counter" which is a pseudo-random number regenerated whenever we set the RTC. Since this value is unpredictable it should provide some useful seeding to the random number generator. Only do this on boot since the goal is to seed the pool rather than add useful entropy. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-16drivers/rtc/rtc-mxc.c: fix irq enabled interrupts warningBenoît Thébaudeau1-2/+3
commit b59f6d1febd6cbe9fae4589bf72da0ed32bc69e0 upstream. Fixes WARNING: at irq/handle.c:146 handle_irq_event_percpu+0x19c/0x1b8() irq 25 handler mxc_rtc_interrupt+0x0/0xac enabled interrupts Modules linked in: (unwind_backtrace+0x0/0xf0) from (warn_slowpath_common+0x4c/0x64) (warn_slowpath_common+0x4c/0x64) from (warn_slowpath_fmt+0x30/0x40) (warn_slowpath_fmt+0x30/0x40) from (handle_irq_event_percpu+0x19c/0x1b8) (handle_irq_event_percpu+0x19c/0x1b8) from (handle_irq_event+0x28/0x38) (handle_irq_event+0x28/0x38) from (handle_level_irq+0x80/0xc4) (handle_level_irq+0x80/0xc4) from (generic_handle_irq+0x24/0x38) (generic_handle_irq+0x24/0x38) from (handle_IRQ+0x30/0x84) (handle_IRQ+0x30/0x84) from (avic_handle_irq+0x2c/0x4c) (avic_handle_irq+0x2c/0x4c) from (__irq_svc+0x40/0x60) Exception stack(0xc050bf60 to 0xc050bfa8) bf60: 00000001 00000000 003c4208 c0018e20 c050a000 c050a000 c054a4c8 c050a000 bf80: c05157a8 4117b363 80503bb4 00000000 01000000 c050bfa8 c0018e2c c000e808 bfa0: 60000013 ffffffff (__irq_svc+0x40/0x60) from (default_idle+0x1c/0x30) (default_idle+0x1c/0x30) from (cpu_idle+0x68/0xa8) (cpu_idle+0x68/0xa8) from (start_kernel+0x22c/0x26c) Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sascha Hauer <kernel@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-16drivers/rtc/rtc-ab8500.c: use IRQF_ONESHOT when requesting a threaded IRQLee Jones1-1/+1
commit 3cfd16a551dc0c188160e1765168a04baf2d3198 upstream. This driver's IRQ registration is failing because the kernel now forces IRQs to be ONESHOT if no IRQ handler is passed. Signed-off-by: Lee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-16drivers/rtc/rtc-spear.c: fix use-after-free in spear_rtc_remove()Devendra Naga1-1/+1
commit 2a643893e50fde71d7ba84b5592ec61b467b9ab6 upstream. `config' is freed and is then used in the rtc_device_unregister() call, causing a kernel panic. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Reviewed-by: Viresh Kumar <viresh.linux@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-17drivers/rtc/rtc-pl031.c: configure correct wday for 2000-01-01Rajkumar Kasirajan1-0/+18
The reset date of the ST Micro version of PL031 is 2000-01-01. The correct weekday for 2000-01-01 is saturday, but pl031 is initialized to sunday. This may lead to alarm malfunction, so configure the correct wday if RTC_DR indicates reset. Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: Mattias Wallin <mattias.wallin@stericsson.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-04Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Thomas Gleixner. * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rtc: Fix possible null pointer dereference in rtc-mpc5121.c
2012-04-26rtc: Fix possible null pointer dereference in rtc-mpc5121.cJohn Stultz1-2/+1
Mark Loard pointed out: "For example, this beauty from rtc-mpc5121.c in the same update: ... rtc->rtc = rtc_device_register("mpc5200-rtc", &op->dev, &mpc5200_rtc_ops, THIS_MODULE); ... rtc->rtc->uie_unsupported = 1; // <<<< Ooops NULL pointer >>>> if (IS_ERR(rtc->rtc)) { // <<<< this needs to be earlier >>>> err = PTR_ERR(rtc->rtc); goto out_free_irq; } ..." This patch moves setting the uie_unsupported flag to after we validate the rtc->rtc pointer to resolve this. Reported by: Mark Lord <kernel@teksavvy.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Link: http://lkml.kernel.org/r/1335300215-21427-1-git-send-email-john.stultz@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2012-04-25drivers/rtc/rtc-ds1307.c: fix BUG shown with lock debugging enabledAnatolij Gustschin1-0/+1
Add struct bin_attribute initialization to fix the following bug: rtc-ds1307 3-0068: rtc core: registered ds1307 as rtc0 BUG: key cfb14fcc not in .data! ------------[ cut here ]------------ WARNING: at kernel/lockdep.c:2986 sysfs_add_file_mode+0x84/0xdc() Modules linked in: [<c0018d94>] (unwind_backtrace+0x0/0xf8) from [<c0031f7c>] (warn_slowpath_common+0x4c/0x64) [<c0031f7c>] (warn_slowpath_common+0x4c/0x64) from [<c0031fb0>] (warn_slowpath_null+0x1c/0x24) [<c0031fb0>] (warn_slowpath_null+0x1c/0x24) from [<c012f7ac>] (sysfs_add_file_mode+0x84/0xdc) [<c012f7ac>] (sysfs_add_file_mode+0x84/0xdc) from [<c04b11e4>] (ds1307_probe+0x5e4/0x6ac) [<c04b11e4>] (ds1307_probe+0x5e4/0x6ac) from [<c036e600>] (i2c_device_probe+0xdc/0x108) [<c036e600>] (i2c_device_probe+0xdc/0x108) from [<c02cdf84>] (driver_probe_device+0x90/0x210) [<c02cdf84>] (driver_probe_device+0x90/0x210) from [<c02ce198>] (__driver_attach+0x94/0x98) [<c02ce198>] (__driver_attach+0x94/0x98) from [<c02cc824>] (bus_for_each_dev+0x50/0x7c) [<c02cc824>] (bus_for_each_dev+0x50/0x7c) from [<c02cd780>] (bus_add_driver+0x184/0x244) [<c02cd780>] (bus_add_driver+0x184/0x244) from [<c02ce43c>] (driver_register+0x78/0x12c) [<c02ce43c>] (driver_register+0x78/0x12c) from [<c03701ac>] (i2c_register_driver+0x2c/0xb4) [<c03701ac>] (i2c_register_driver+0x2c/0xb4) from [<c0008798>] (do_one_initcall+0x34/0x178) [<c0008798>] (do_one_initcall+0x34/0x178) from [<c0691860>] (kernel_init+0xdc/0x194) [<c0691860>] (kernel_init+0xdc/0x194) from [<c0013cf0>] (kernel_thread_exit+0x0/0x8) Since commit 6992f5334995af4 ("sysfs: Use one lockdep class per sysfs attribute") this initialization is required. Reported-by: Stefano Babic <sbabic@denx.de> Tested-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Stefano Babic <sbabic@denx.de> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12drivers/rtc/rtc-pl031.c: enable clock on all ST variantsLinus Walleij1-2/+1
The ST variants of the PL031 all require bit 26 in the control register to be set before they work properly. Discovered this when testing on the Nomadik board where it would suprisingly just stand still. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Cc: Alessandro Rubini <rubini@unipv.it> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12drivers/rtc/rtc-twl.c: use static register while reading timeKonstantin Shlyakhovoy1-5/+38
RTC stores time and date in several registers. Due to the fact that these registers can't be read instantaneously, there is a chance that reading from counting registers gives an error of one minute, one hour, one day, etc. To address this issue, the RTC has hardware support to copy the RTC counting registers to static shadowed registers. The current implementation does not use this feature, and in a stress test, we can reproduce this error at a rate of around two times per 300000 readings. Fix the implementation to ensure that the right snapshot of time is captured. Signed-off-by: Konstantin Shlyakhovoy <x0155534@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Benoit Cousson <b-cousson@ti.com> Cc: linux-omap <linux-omap@vger.kernel.org> Acked-by: Mykola Oleksiienko <x0174904@ti.com> Acked-by: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@ti.com> Acked-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12drivers/rtc/rtc-s3c.c: add placeholder for driver private dataTushar Behera1-5/+18
Driver data field is a pointer, hence assigning that to an integer results in compilation warnings. Fixes following compilation warnings: drivers/rtc/rtc-s3c.c: In function `s3c_rtc_get_driver_data': drivers/rtc/rtc-s3c.c:452:3: warning: return makes integer from pointer without a cast [enabled by default] drivers/rtc/rtc-s3c.c: At top level: drivers/rtc/rtc-s3c.c:674:3: warning: initialization makes pointer from integer without a cast [enabled by default] drivers/rtc/rtc-s3c.c:674:3: warning: (near initialization for `s3c_rtc_dt_match[1].data') [enabled by default] drivers/rtc/rtc-s3c.c:677:3: warning: initialization makes pointer from integer without a cast [enabled by default] drivers/rtc/rtc-s3c.c:677:3: warning: (near initialization for `s3c_rtc_dt_match[2].data') [enabled by default] drivers/rtc/rtc-s3c.c:680:3: warning: initialization makes pointer from integer without a cast [enabled by default] drivers/rtc/rtc-s3c.c:680:3: warning: (near initialization for `s3c_rtc_dt_match[3].data') [enabled by default] Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12drivers/rtc/rtc-s3c.c: fix compilation errorTushar Behera1-4/+4
Fix this error: drivers/rtc/rtc-s3c.c: At top level: drivers/rtc/rtc-s3c.c:671:3: error: request for member `data' in something not a structure or union drivers/rtc/rtc-s3c.c:674:3: error: request for member `data' in something not a structure or union drivers/rtc/rtc-s3c.c:677:3: error: request for member `data' in something not a structure or union drivers/rtc/rtc-s3c.c:680:3: error: request for member `data' in something not a structure or union Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12drivers/rtc/rtc-efi.c: fix section mismatch warningJan Beulich1-1/+0
efi_rtc_init() uses platform_driver_probe(), so there's no need to also set efi_rtc_driver's probe member (as it won't be used anyway). This fixes a modpost section mismatch warning (as efi_rtc_probe() validly is __init). Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12drivers/rtc/rtc-r9701.c: reset registers if invalid values are detectedAndreas Dumberger1-0/+22
hwclock refuses to set date/time if RTC registers contain invalid values. Check the date/time register values at probe time and initialize them to make hwclock happy. Signed-off-by: Andreas Dumberger <andreas.dumberger@tqs.de> Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-05Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds1-2/+2
Merge batch of fixes from Andrew Morton: "The simple_open() cleanup was held back while I wanted for laggards to merge things. I still need to send a few checkpoint/restore patches. I've been wobbly about merging them because I'm wobbly about the overall prospects for success of the project. But after speaking with Pavel at the LSF conference, it sounds like they're further toward completion than I feared - apparently davem is at the "has stopped complaining" stage regarding the net changes. So I need to go back and re-review those patchs and their (lengthy) discussion." * emailed from Andrew Morton <akpm@linux-foundation.org>: (16 patches) memcg swap: use mem_cgroup_uncharge_swap fix backlight: add driver for DA9052/53 PMIC v1 C6X: use set_current_blocked() and block_sigmask() MAINTAINERS: add entry for sparse checker MAINTAINERS: fix REMOTEPROC F: typo alpha: use set_current_blocked() and block_sigmask() simple_open: automatically convert to simple_open() scripts/coccinelle/api/simple_open.cocci: semantic patch for simple_open() libfs: add simple_open() hugetlbfs: remove unregister_filesystem() when initializing module drivers/rtc/rtc-88pm860x.c: fix rtc irq enable callback fs/xattr.c:setxattr(): improve handling of allocation failures fs/xattr.c:listxattr(): fall back to vmalloc() if kmalloc() failed fs/xattr.c: suppress page allocation failure warnings from sys_listxattr() sysrq: use SEND_SIG_FORCED instead of force_sig() proc: fix mount -t proc -o AAA
2012-04-05drivers/rtc/rtc-88pm860x.c: fix rtc irq enable callbackJett.Zhou1-2/+2
According to 88pm860x spec, rtc alarm irq enable control is bit3 for RTC_ALARM_EN, so fix it. Signed-off-by: Jett.Zhou <jtzhou@marvell.com> Cc: Axel Lin <axel.lin@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@marvell.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-29Merge tag 'cleanup2' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull "ARM: cleanups of io includes" from Olof Johansson: "Rob Herring has done a sweeping change cleaning up all of the mach/io.h includes, moving some of the oft-repeated macros to a common location and removing a bunch of boiler plate. This is another step closer to a common zImage for multiple platforms." Fix up various fairly trivial conflicts (<mach/io.h> removal vs changes around it, tegra localtimer.o is *still* gone, yadda-yadda). * tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits) ARM: tegra: Include assembler.h in sleep.S to fix build break ARM: pxa: use common IOMEM definition ARM: dma-mapping: convert ARCH_HAS_DMA_SET_COHERENT_MASK to kconfig symbol ARM: __io abuse cleanup ARM: create a common IOMEM definition ARM: iop13xx: fix missing declaration of iop13xx_init_early ARM: fix ioremap/iounmap for !CONFIG_MMU ARM: kill off __mem_pci ARM: remove bunch of now unused mach/io.h files ARM: make mach/io.h include optional ARM: clps711x: remove unneeded include of mach/io.h ARM: dove: add explicit include of dove.h to addr-map.c ARM: at91: add explicit include of hardware.h to uncompressor ARM: ep93xx: clean-up mach/io.h ARM: tegra: clean-up mach/io.h ARM: orion5x: clean-up mach/io.h ARM: davinci: remove unneeded mach/io.h include [media] davinci: remove includes of mach/io.h ARM: OMAP: Remove remaining includes for mach/io.h ARM: msm: clean-up mach/io.h ...
2012-03-29Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer core updates from Thomas Gleixner. * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: ia64: vsyscall: Add missing paranthesis alarmtimer: Don't call rtc_timer_init() when CONFIG_RTC_CLASS=n x86: vdso: Put declaration before code x86-64: Inline vdso clock_gettime helpers x86-64: Simplify and optimize vdso clock_gettime monotonic variants kernel-time: fix s/then/than/ spelling errors time: remove no_sync_cmos_clock time: Avoid scary backtraces when warning of > 11% adj alarmtimer: Make sure we initialize the rtctimer ntp: Fix leap-second hrtimer livelock x86, tsc: Skip refined tsc calibration on systems with reliable TSC rtc: Provide flag for rtc devices that don't support UIE ia64: vsyscall: Use seqcount instead of seqlock x86: vdso: Use seqcount instead of seqlock x86: vdso: Remove bogus locking in update_vsyscall_tz() time: Remove bogus comments time: Fix change_clocksource locking time: x86: Fix race switching from vsyscall to non-vsyscall clock
2012-03-28Merge tag 'mfd_3.4-1' of ↵Linus Torvalds1-0/+27
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFD changes from Samuel Ortiz: - 4 new drivers: Freescale i.MX on-chip Anatop, Ricoh's RC5T583 and TI's TPS65090 and TPS65217. - New variants support (8420, 8520 ab9540), cleanups and bug fixes for the abx500 and db8500 ST-E chipsets. - Some minor fixes and update for the wm8994 from Mark. - The beginning of a long term TWL cleanup effort coming from the TI folks. - Various fixes and cleanups for the s5m, TPS659xx, pm860x, and MAX8997 drivers. Fix up trivial conflicts due to duplicate patches and header file cleanups (<linux/device.h> removal etc). * tag 'mfd_3.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (97 commits) gpio/twl: Add DT support to gpio-twl4030 driver gpio/twl: Allocate irq_desc dynamically for SPARSE_IRQ support mfd: Detach twl6040 from the pmic mfd driver mfd: Replace twl-* pr_ macros by the dev_ equivalent and do various cleanups mfd: Micro-optimization on twl4030 IRQ handler mfd: Make twl4030 SIH SPARSE_IRQ capable mfd: Move twl-core IRQ allocation into twl[4030|6030]-irq files mfd: Remove references already defineid in header file from twl-core mfd: Remove unneeded header from twl-core mfd: Make twl-core not depend on pdata->irq_base/end ARM: OMAP2+: board-omap4-*: Do not use anymore TWL6030_IRQ_BASE in board files mfd: Return twl6030_mmc_card_detect IRQ for board setup Revert "mfd: Add platform data for MAX8997 haptic driver" mfd: Add support for TPS65090 mfd: Add some da9052-i2c section annotations mfd: Build rtc5t583 only if I2C config is selected to y. mfd: Add anatop mfd driver mfd: Fix compilation error in tps65910.h mfd: Add 8420 variant to db8500-prcmu mfd: Add 8520 PRCMU variant to db8500-prcmu ...
2012-03-28Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-0/+9
Pull "ARM: More device tree support updates" from Olof Johansson: "This branch contains a number of updates for device tree support on several ARM platforms, in particular: * AT91 continues the device tree conversion adding support for a number of on-chip drivers and other functionality * ux500 adds probing of some of the core SoC blocks through device tree * Initial device tree support for ST SPEAr600 platforms * kirkwood continues the conversion to device-tree probing" Manually merge arch/arm/mach-ux500/Kconfig due to MACH_U8500 rename, and drivers/usb/gadget/at91_udc.c due to header file include cleanups. Also do an "evil merge" for the MACH_U8500 config option rename that the affected RMI4 touchscreen driver in staging. It's called MACH_MOP500 now, and it was missed during previous merges. * tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) ARM: SPEAr600: Add device-tree support to SPEAr600 boards ARM: ux500: Provide local timer support for Device Tree ARM: ux500: Enable PL022 SSP Controller in Device Tree ARM: ux500: Enable PL310 Level 2 Cache Controller in Device Tree ARM: ux500: Enable PL011 AMBA UART Controller for Device Tree ARM: ux500: Enable Cortex-A9 GIC (Generic Interrupt Controller) in Device Tree ARM: ux500: db8500: list most devices in the snowball device tree ARM: ux500: split dts file for snowball into generic part ARM: ux500: combine the board init functions for DT boot ARM: ux500: Initial Device Tree support for Snowball ARM: ux500: CONFIG: Enable Device Tree support for future endeavours ARM: kirkwood: use devicetree for rtc-mv ARM: kirkwood: rtc-mv devicetree bindings ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0 ARM: kirkwood: fdt: facilitate new boards during fdt migration ARM: kirkwood: fdt: absorb kirkwood_init() ARM: kirkwood: fdt: use mrvl ticker symbol ARM: orion: wdt: use resource vice direct access ARM: Kirkwood: Remove tclk from kirkwood_asoc_platform_data. ARM: orion: spi: remove enable_clock_fix which is not used ...
2012-03-27Merge branch 'platforms' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds1-1/+1
Pull ARM platform updates from Russell King: "This covers platform stuff for platforms I have a direct interest in (iow, I have the hardware). Essentially: - as we no longer support any other Acorn platforms other than RiscPC anymore, we can collect all that code into mach-rpc. - convert Acorn expansion card stuff to use IRQ allocation functions, and get rid of NO_IRQ from there. - cleanups to the ebsa110 platform to move some private stuff out of its header files. - large amount of SA11x0 updates: - conversion of private DMA implementation to DMA engine support (this actually gives us greater flexibility in drivers over the old API.) - re-worked ucb1x00 updates - convert to genirq, remove sa11x0 dependencies, fix various minor issues - move platform specific sa11x0 framebuffer data into platform files in arch/arm instead of keeping this in the driver itself - update sa11x0 IrDA driver for DMA engine, and allow it to use DMA for SIR transmissions as well as FIR - rework sa1111 support for genirq, and irq allocation - fix sa1111 IRQ support so it works again - use sparse IRQ support After this, I have one more pull request remaining from my current set, which I think is going to be the most problematical as it generates 8 conflicts." Fixed up the trivial conflict in arch/arm/mach-rpc/Makefile as per Russell. * 'platforms' of git://git.linaro.org/people/rmk/linux-arm: (125 commits) ARM: 7343/1: sa11x0: convert to sparse IRQ ARM: 7342/2: sa1100: prepare for sparse irq conversion ARM: 7341/1: input: prepare jornada720 keyboard and ts for sa11x0 sparse irq ARM: 7340/1: rtc: sa1100: include mach/irqs.h instead of asm/irq.h ARM: sa11x0: remove unused DMA controller definitions ARM: sa11x0: remove old SoC private DMA driver USB: sa1111: add hcd .reset method USB: sa1111: add OHCI shutdown methods USB: sa1111: reorganize ohci-sa1111.c USB: sa1111: get rid of nasty printk(KERN_DEBUG "%s: ...", __FILE__) USB: sa1111: sparse and checkpatch cleanups ARM: sa11x0: don't static map sa1111 ARM: sa1111: use dev_err() rather than printk() ARM: sa1111: cleanup sub-device registration and unregistration ARM: sa1111: only setup DMA for DMA capable devices ARM: sa1111: register sa1111 devices with dmabounce in bus notifier ARM: sa1111: move USB interface register definitions to ohci-sa1111.c ARM: sa1111: move PCMCIA interface register definitions to sa1111_generic.c ARM: sa1111: move PS/2 interface register definitions to sa1111p2.c ARM: sa1111: delete unused physical GPIO register definitions ...
2012-03-27Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-57/+28
Pull "ARM: device tree work" from Arnd Bergmann: "Most of these patches convert code from using static platform data to describing the hardware in the device tree. This is only the first half of the changes for v3.4 because a lot of patches for this topic came in the last week before the merge window. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fix up trivial conflicts in arch/arm/mach-vexpress/{Kconfig,core.h} * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (86 commits) Document: devicetree: add OF documents for arch-mmp ARM: dts: append DTS file of pxa168 ARM: mmp: append OF support on pxa168 ARM: mmp: enable rtc clk in pxa168 i2c: pxa: add OF support serial: pxa: add OF support arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board ARM: OMAP2+: Remove extra ifdefs for board-generic ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected ASoC: DT: Add digital microphone binding to PAZ00 board. ARM: dt: Add ARM PMU to tegra*.dtsi ARM: at91: at91sam9x5cm/dt: add leds support ARM: at91: usb_a9g20/dt: add gpio-keys support ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support ARM: at91: at91sam9m10g45ek/dt: add leds support ARM: at91: usb_a9g20/dt: add leds support ARM: at91/pio: add new PIO3 features ARM: at91: add sam9_smc.o to at91sam9x5 build ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter ARM: at91/tc: add device tree support to atmel_tclib ...
2012-03-27Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds3-48/+154
Pull "ARM: driver specific updates" from Arnd Bergmann: "These are all specific to some driver. They are typically the platform side of a change in the drivers directory, such as adding a new driver or extending the interface to the platform. In cases where there is no maintainer for the driver, or the maintainer prefers to have the platform changes in the same branch as the driver changes, the patches to the drivers are included as well. A much smaller set of driver updates that depend on other branches getting merged first will be sent later. The new export of tegra_chip_uid conflicts with other changes in fuse.c. In rtc-sa1100.c, the global removal of IRQF_DISABLED conflicts with the cleanup of the interrupt handling of that driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fixed up aforementioned trivial conflicts. * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits) ARM: SAMSUNG: change the name from s3c-sdhci to exynos4-sdhci mmc: sdhci-s3c: add platform data for the second capability ARM: SAMSUNG: support the second capability for samsung-soc ARM: EXYNOS: add support DMA for EXYNOS4X12 SoC ARM: EXYNOS: Add apb_pclk clkdev entry for mdma1 ARM: EXYNOS: Enable MDMA driver regulator: Remove bq24022 regulator driver rtc: sa1100: add OF support pxa: magician/hx4700: Convert to gpio-regulator from bq24022 ARM: OMAP3+: SmartReflex: fix error handling ARM: OMAP3+: SmartReflex: fix the use of debugfs_create_* API ARM: OMAP3+: SmartReflex: micro-optimization for sanity check ARM: OMAP3+: SmartReflex: misc cleanups ARM: OMAP3+: SmartReflex: move late_initcall() closer to its argument ARM: OMAP3+: SmartReflex: add missing platform_set_drvdata() ARM: OMAP3+: hwmod: add SmartReflex IRQs ARM: OMAP3+: SmartReflex: clear ERRCONFIG_VPBOUNDINTST only on a need ARM: OMAP3+: SmartReflex: Fix status masking in ERRCONFIG register ARM: OMAP3+: SmartReflex: Add a shutdown hook ARM: OMAP3+: SmartReflex Class3: disable errorgen before disable VP ... Conflicts: arch/arm/mach-tegra/Makefile arch/arm/mach-tegra/fuse.c drivers/rtc/rtc-sa1100.c
2012-03-27Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2-71/+12
Pull "ARM: global cleanups" from Arnd Bergmann: "Quite a bit of code gets removed, and some stuff moved around, mostly the old samsung s3c24xx stuff. There should be no functional changes in this series otherwise. Some cleanups have dependencies on other arm-soc branches and will be sent in the second round. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fixed up trivial conflicts mainly due to #include's being changes on both sides. * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (121 commits) ep93xx: Remove unnecessary includes of ep93xx-regs.h ep93xx: Move EP93XX_SYSCON defines to SoC private header ep93xx: Move crunch code to mach-ep93xx directory ep93xx: Make syscon access functions private to SoC ep93xx: Configure GPIO ports in core code ep93xx: Move peripheral defines to local SoC header ep93xx: Convert the watchdog driver into a platform device. ep93xx: Use ioremap for backlight driver ep93xx: Move GPIO defines to gpio-ep93xx.h ep93xx: Don't use system controller defines in audio drivers ep93xx: Move PHYS_BASE defines to local SoC header file ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver ARM: EXYNOS: add clock registers for exynos4x12-cpufreq PM / devfreq: update the name of EXYNOS clock registers that were omitted PM / devfreq: update the name of EXYNOS clock register ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock ARM: EXYNOS: use static declaration on regarding clock ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs ARM: OMAP2+: Fix build error after merge ARM: S3C24XX: remove call to s3c24xx_setup_clocks ...
2012-03-25ARM: 7340/1: rtc: sa1100: include mach/irqs.h instead of asm/irq.hRob Herring1-1/+1
Since asm/irq.h may not include mach/irqs.h, include mach/irqs.h directly. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-25ARM: pxa: use common IOMEM definitionRob Herring1-0/+1
pxa was missed in the moving of IOMEM to a common definition, so lots of IOMEM redefined warnings were introduced. So remove pxa IOMEM definition and fix all the fallout. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@marvell.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: rtc-linux@googlegroups.com Cc: alsa-devel@alsa-project.org
2012-03-24Merge branch 'kirkwood/dt' into next/dt2Arnd Bergmann1-0/+9
This was part of the for-next branch earlier but for some reasons a rebuild of the tree missed it, so I'm putting it back in now. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-23Merge branch 'amba' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds2-24/+2
Pull #2 ARM updates from Russell King: "Further ARM AMBA primecell updates which aren't included directly in the previous commit. I wanted to keep these separate as they're touching stuff outside arch/arm/." * 'amba' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7362/1: AMBA: Add module_amba_driver() helper macro for amba_driver ARM: 7335/1: mach-u300: do away with MMC config files ARM: 7280/1: mmc: mmci: Cache MMCICLOCK and MMCIPOWER register ARM: 7309/1: realview: fix unconnected interrupts on EB11MP ARM: 7230/1: mmc: mmci: Fix PIO read for small SDIO packets ARM: 7227/1: mmc: mmci: Prepare for SDIO before setting up DMA job ARM: 7223/1: mmc: mmci: Fixup use of runtime PM and use autosuspend ARM: 7221/1: mmc: mmci: Change from using legacy suspend ARM: 7219/1: mmc: mmci: Change vdd_handler to a generic ios_handler ARM: 7218/1: mmc: mmci: Provide option to configure bus signal direction ARM: 7217/1: mmc: mmci: Put power register deviations in variant data ARM: 7216/1: mmc: mmci: Do not release spinlock in request_end ARM: 7215/1: mmc: mmci: Increase max_segs from 16 to 128
2012-03-23rtc: ds1307: generalise ram size and offsetAustin Boyle1-31/+47
Generalise NVRAM to support RAM with other size and offset, such as the 64 bytes of SRAM on the mcp7941x. [rdunlap@xenotime.net: fix printk format warning] Signed-off-by: Austin Boyle <Austin.Boyle@aviatnet.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: David Anders <danders.dev@gmail.com> Cc: Alessandro Zummo <alessandro.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23rtc: ds1307: comment and format cleanupDavid Anders1-13/+24
Do some cleanup of the comment sections as well as correct some formatting issues reported by checkpatch.pl. Signed-off-by: David Anders <x0132446@ti.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Austin Boyle <Austin.Boyle@aviatnet.com> Cc: Alessandro Zummo <alessandro.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23rtc: ds1307: simplify irq setup codeWolfram Sang1-6/+5
No need to have two seperate if-blocks for setting up the irq. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: David Anders <danders.dev@gmail.com> Cc: Austin Boyle <Austin.Boyle@aviatnet.com> Cc: Alessandro Zummo <alessandro.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23rtc: ds1307: refactor chip_desc tableWolfram Sang1-29/+19
The chip_desc table is suboptimal. Currently it requires an entry for every new chip type, even if it is empty. This has already been forgotten for the ds1388. Refactor the code, so new entries are only needed, when they chip type really needs a (non-empty) description. Also make the table visually more appealing. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Austin Boyle <Austin.Boyle@aviatnet.com> Cc: David Anders <danders.dev@gmail.com> Cc: Alessandro Zummo <alessandro.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23rtc: driver for DA9052/53 PMIC v1Ashish Jangam3-0/+301
RTC Driver for Dialog Semiconductor DA9052/53 PMICs. This patch is functionally tested on Samsung SMDKV6410. [akpm@linux-foundation.org: clean up file header layout, remove unneeded initialisation of local arrays] Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com> Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Cc: David Dajun Chen <dchen@diasemi.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23drivers/rtc/rtc-max8925.c: fix alarm->enabled mistake in ↵Kevin Liu1-5/+15
max8925_rtc_read_alarm/max8925_rtc_set_alarm max8925_rtc_read_alarm() should set alrm->enabled based on both ALARM_IRQ_MASK and ALARM_CTRL setting. max8925_rtc_set_alarm() should enable/disable alarm according to ALARM_CTRL reg setting. Signed-off-by: Kevin Liu <kliu5@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23drivers/rtc/rtc-max8925.c: fix max8925_rtc_read_alarm() return value errorKevin Liu1-0/+1
max8925_rtc_read_alarm should always return 0 with success Signed-off-by: Kevin Liu <kliu5@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23drivers/rtc/rtc-pm8xxx.c: make pm8xxx_rtc_pm_ops staticNavin P1-1/+1
Signed-off-by: Navin P <zicrim@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23drivers/rtc: remove IRQF_DISABLEDYong Zhang21-32/+31
Since commit e58aa3d2d0cc ("genirq: run irq handlers with interrupts disabled") we run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled - see commit b738a50a2026 ("genirq: warn when handler enables interrupts"). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23drivers/rtc/rtc-twl.c: return correct RTC event from ISRVenu Byravarasu1-3/+3
Following changes are made as part of this change: 1. As TWL RTC supports periodic interrupt, the correct event should be RTC_PF instead of RTC_UF. 2. No need to initialize variable "events" to 0 & then OR it with the event values. Hence fixing it. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23drivers/rtc/rtc-twl.c: simplify RTC interrupt clearingVenu Byravarasu1-1/+1
For clearing RTC interrupt, programming ALARM bit only is sufficient, as all other bits are any way not affected by writing 0 to them. Hence removed unwanted OR operation. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23drivers/rtc/rtc-twl.c: enable RTC irrespective of its prior stateVenu Byravarasu1-10/+2
As part of probe, before enabling RTC, RTC_CTRL register is read to check if it is already running. If RTC is used by kernel alone, then this read is not required. Even if RTC was enabled already by boot loader, setting STOP_RTC bit again should not harm. Hence removed unwanted read operation. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23drivers/rtc/rtc-twl.c: optimize IRQ bit accessVenu Byravarasu1-0/+8
As the TWL RTC driver has a cached copy of enabled RTC interrupt bits in variable rtc_irq_bits, that can be checked before really setting or masking any of the interrupt bits. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23MIPS: add RTC support for loongson1Bzhao zhang3-0/+221
Add RTC support(TOY counter0) for loongson1B SOC Signed-off-by: zhao zhang <zhzhl555@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23rtc: convert rtc i2c drivers to module_i2c_driverAxel Lin19-227/+19
Factor out some boilerplate code for i2c driver registration into module_i2c_driver. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Piotr Ziecik <kosmo@semihalf.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Scott Wood <scottwood@freescale.com> Cc: Srikanth Srinivasan <srikanth.srinivasan@freescale.com> Cc: Mike Rapoport <mike@compulab.co.il> Cc: Sergey Lapin <slapin@ossfans.org> Cc: Roman Fietze <roman.fietze@telemotive.de> Cc: Herbert Valerio Riedel <hvr@gnu.org> Cc: Alexander Bigga <ab@mycable.de> Cc: Dale Farnsworth <dale@farnsworth.org> Cc: Gregory Hermant <gregory.hermant@calao-systems.com> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Martyn Welch <martyn.welch@ge.com> Cc: Byron Bradley <byron.bbradley@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23rtc: convert rtc spi drivers to module_spi_driverAxel Lin9-103/+9
Factor out some boilerplate code for spi driver registration into module_spi_driver. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Mark Jackson <mpfj@mimc.co.uk> Cc: Dennis Aberilla <denzzzhome@yahoo.com> Cc: Nikolaus Voss <n.voss@weinmann.de> Cc: "Kim B. Heino" <Kim.Heino@bluegiga.com> Cc: Raphael Assenat <raph@raphnet.net> Cc: Chris Verges <chrisv@cyberswitching.com> Cc: Magnus Damm <damm@opensource.se> Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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