Add an rtc driver for Maxim 8997 multifunction chip.  Max8997 has rtc
module in it.  and it can be used for timekeeping clock and system alarm.
It provide various operational mode those are BCD/binary, 24/12hour,
am/pm.  Driver sets binary/24/ for default.  Maxim 8997 also supports
SMPL(Sudden Momentary Power Loss), WTSR (Watchdog Timeout and Software
Reset).
Signed-off-by: NJonghwa Lee <jonghwa3.lee@samsung.com>
Cc: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: NTorben Hohn <torbenh@linutronix.de>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add an RTC driver for TPS80031/TPS80032 chips by TI.  This driver
supports:
 - Setting and getting time and date.
 - Setting and reading alarm time.
 - Alarm and interrupt functionlity.

[akpm@linux-foundation.org: remove obsolete __devinit/__devexit]
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: NDevendra Naga <devendra.aaru@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

TI LP8788 PMU supports regulators, battery charger, RTC, ADC, backlight
driver and current sinks.  This patch enables LP8788 rtc module.
Signed-off-by: NMilo(Woogyom) Kim <milo.kim@ti.com>
Cc: "devendra.aaru" <devendra.aaru@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add a driver to support max77686 rtc.  MAX77686 rtc support smpl and wtsr
mode.  It has two alarm register which can be used for alarming to wake
system up.  This drvier uses regmap to access its register.

[akpm@linux-foundation.org: remove inline, __devinit annotations]
[jg1.han@samsung.com: fix build warnings]
[akpm@linux-foundation.org: simplify code]
Signed-off-by: NChiwoong Byun <woong.byun@samsung.com>
Signed-off-by: NJonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: NMyugnjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The purpose of this option is to allow ARM/etc systems that rely on the
class RTC subsystem to have the same kind of automatic NTP based
synchronization that we have on PC platforms. Today ARM does not
implement update_persistent_clock and makes extensive use of the class
RTC system.

When enabled CONFIG_RTC_SYSTOHC will provide a generic
rtc_update_persistent_clock that stores the current time in the RTC and
is intended complement the existing CONFIG_RTC_HCTOSYS option that loads
the RTC at boot.

Like with RTC_HCTOSYS the platform's update_persistent_clock is used
first, if it works. Platforms with mixed class RTC and non-RTC drivers
need to return ENODEV when class RTC should be used. Such an update for
PPC is included in this patch.

Long term, implementations of update_persistent_clock should migrate to
proper class RTC drivers and use CONFIG_RTC_SYSTOHC instead.

Tested on ARM kirkwood and PPC405
Signed-off-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

Add an RTC driver for TPS6586X chips by TI.  This driver supports:

- Setting and getting time and date.
- Setting and reading alarm time.
- Alarm and interrupt functionlity.

[akpm@linux-foundation.org: remove stray semicolons]
[akpm@linux-foundation.org: start epoch in 2009]
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Tested-by: NMarc Dietrich <marvin24@gmx.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

A driver for the DA9055 PMIC.  This has a dependency upon the DA9055 MFD
core.

Functionally tested on Samsung SMDKV6410.
Signed-off-by: NDavid Dajun Chen <dchen@diasemi.com>
Signed-off-by: NAshish Jangam <ashish.jangam@kpitcummins.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add an RTC driver for PCF8523 chips by NXP Semiconductors.  No support is
currently provided for the alarm and interrupt functions.  Only the time
and date functionality is implemented.
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add an RTC driver for the RTC device on Ricoh MFD Rc5t583.  Ricoh RTC has
3 types of alarms.  The current patch adds support for the Y-Alarm of
RC5t583 RTC.
Signed-off-by: NVenu Byravarasu <vbyravarasu@nvidia.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The MAX8907 is an I2C-based power-management IC containing voltage
regulators, a reset controller, a real-time clock, and a touch-screen
controller.

The driver is based on an original by or fixed by:
* Tom Cherry
* Prashant Gaikwad
* Joseph Yoon

During upstreaming, I (swarren):
* Converted to regmap.
* Fixed handling of RTC_HOUR register containing 12.
* Fixed handling of RTC_WEEKDAY register.
* General cleanup.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Cc: Tom Cherry <tcherry@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Joseph Yoon <tyoon@nvidia.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

TPS65910 PMIC is a MFD with RTC as one of the device.  Adding RTC driver
for supporting RTC device present inside TPS65910 PMIC.

Only support for RTC alarm is implemented as part of this patch.
Signed-off-by: NVenu Byravarasu <vbyravarasu@nvidia.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add an RTC driver for Freescale Secure Non-Volatile Storage (SNVS)
Low Power (LP) RTC.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

[akpm@linux-foundation.org: fix warning]
Signed-off-by: NSven Schnelle <svens@stackframe.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

add rtc driver for MARVELL 88PM80X PMIC and enable rtc function.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NQiao Zhou <zhouqiao@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

In order to keep consistency with other rtc drivers,rename CONFIG_RTC_MXC
to CONFIG_RTC_DRV_MXC.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NWolfram Sang <w.sang@pengutronix.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
[akpm@linux-foundation.org: fix missed arch/arm/configs/imx_v6_v7_defconfig]
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

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: NDavid Dajun Chen <dchen@diasemi.com>
Signed-off-by: NAshish 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: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add RTC support(TOY counter0) for loongson1B SOC
Signed-off-by: Nzhao zhang <zhzhl555@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add support for PMIC8xxx based RTC.  PMIC8xxx is Qualcomm's power
management IC that internally houses an RTC module.  This driver
communicates with the PMIC module over SSBI bus.

[akpm@linux-foundation.org: cosmetic tweaks]
Acked-by: NWan ZongShun <mcuos.com@gmail.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NAnirudh Ghayal <aghayal@codeaurora.org>
Signed-off-by: NAshay Jaiswal <ashayj@codeaurora.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The patch moves rtc driver for PKUnity-v3 SoC from arch/unicore32/kernel/
to drivers/rtc/, with renaming it to rtc-puv3.c.
Also, Kconfig, Makefile, and MAINTAINERS are modified correspondingly.
Signed-off-by: NGuan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Signed-off-by: NRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add basic support for ST m41t93 SPI RTCs.  Tested with factory-new and
with "run-in" species with and without backup batteries.
Signed-off-by: NNikolaus Voss <n.voss@weinmann.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add support for the Micro Crystal RV3029-C2 RTC chips.
Signed-off-by: NHeiko Schocher <hs@denx.de>
Signed-off-by: NGregory Hermant <gregory.hermant@calao-systems.com>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add support for EM Microelectronic EM3027 RTC chip.
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This adds a driver for the RTC devices in VIA and WonderMedia
Systems-on-Chip.  Alarm, 1Hz interrupts, reading and setting time are
supported.
Signed-off-by: NAlexey Charkov <alchark@gmail.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Alexey Charkov <alchark@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Enable rtc function in 88pm860x PMIC.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This is a simple RTC driver that lets Tilera hardware boot up and
set the clock correctly.
Acked-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

This is a platform driver that supports the built-in real-time clock on
Tegra SOCs.
Signed-off-by: NAndrew Chew <achew@nvidia.com>
Acked-by: NAlessandro Zummo <a.zummo@towertech.it>
Acked-by: NWan ZongShun <mcuos.com@gmail.com>
Acked-by: NJon Mayo <jmayo@nvidia.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Replace EXTRA_CFLAGS with ccflags-y.
Signed-off-by: Nmatt mooney <mfm@muteddisk.com>
Acked-by: NWANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

Provide the standard kernel rtc driver interface on top of the vrtc layer
added in the previous patch.
Signed-off-by: NFeng Tang <feng.tang@intel.com>
LKML-Reference: <20101110172911.3311.20593.stgit@localhost.localdomain>
[Fixed swapped arguments on IPC]
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
[Cleaned up and the device creation moved to arch/x86/platform]
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The mfd driver for MC13783 recently got support for MC13892 and was
renamed accordingly from mc13783-core to mc13xxx-core.  Do the same for
rtc-mc13783.

The only relevant change is to use platform id's to tell the platform bus
that this driver is responsible for mc13892-rtc devices, too.
Acked-by: NAlessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This adds support for the RTC provided by the Maxim 8998 chip. This
driver was tested on a GONI board by using the rtc-test application from
the Documentation/rtc.txt.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NAlessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add an RTC driver for the built-in RTC in the LPC32XX SoC.  This patch
includes updates from the initial review comments and updates from the v3
review.
Signed-off-by: NKevin Wells <wellsk40@gmail.com>
Signed-off-by: NDurgesh Pattamatta <durgesh.pattamatta@nxp.com>
Reviewed-by: NWolfram Sang <w.sang@pengutronix.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add a driver for the DS3232 RTC chip via the I2C bus.  Alarms are not
supported in this version of the driver.

[akpm@linux-foundation.org: fix Kconfig help text]
Signed-off-by: NMingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: NJingchang Lu <b22599@freescale.com>
Signed-off-by: NSrikanth Srinivasan <srikanth.srinivasan@freescale.com>
Signed-off-by: NRoy Zang <tie-fei.zang@freescale.com>
Acked-by: NWan ZongShun <mcuos.com@gmail.com>
Cc: Kumar Gala <kumar.gala@freescale.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

- derived from rtc-pcf8563

- no SRAM driver
Signed-off-by: NRoman Fietze <roman.fietze@telemotive.de>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This driver is based on code from Freescale which accompanies their i.MX25
PDK board, with some cleanup.
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sascha Hauer <kernel@pengutronix.de>
Acked-by: NWan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add support for the RTC unit on JZ4740 SoCs.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: rtc-linux@googlegroups.com
Acked-by: NWan ZongShun <mcuos.com@gmail.com>
Cc: linux-mips@linux-mips.org 
Cc: linux-kernel@vger.kernel.org
Cc: Alessandro Zummo <a.zummo@towertech.it>,
Patchwork: https://patchwork.linux-mips.org/patch/1424/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Add a driver for the RTC on the AB8500 power management chip.  This is a
client of the AB8500 MFD driver.
Signed-off-by: NVirupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Signed-off-by: NRabin Vincent <rabin.vincent@stericsson.com>
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Acked-by: NSrinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This driver features:

* Alarm support.
* Periodic interrupt by using a timer include into the RTC module.
* The update interrupt is not supported by this RTC module.

This driver was tested on a DM365 EVM by using the rtc-test application
from the Documentation/rtc.txt.
Signed-off-by: NMiguel Aguilar <miguel.aguilar@ridgerun.com>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Acked-by: NAlessandro Zummo <a.zummo@towertech.it>

MAX8925 is a PMIC that contains RTC component.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>