Commit graph

340 commits

Author SHA1 Message Date
Christoph Hellwig
290cd0f07f rtc: cmos: don't refer to asm-generic/rtc.h
That header has been gone for a while.  I've fixed up the Kconfig
comment, but the one in rtc-cmos.c doesn't make any sense to me
even looking at its history.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-10-19 09:41:48 +02:00
Linus Torvalds
8b70f71617 RTC for 4.9
Subsystem:
  - delete owner assignment in multiple drivers
  - constify rtc_class_ops structures
 
 Drivers:
  - ac100: support clock-output-names
  - cmos: properly handle ACPI alarms and quirky BIOSes and other fixes
  - ds1307: fix century bit support while staying comaptible with previous
    behaviour by default
  - ds1347: switch to regmap
  - isl12057 is now handled by ds1307
  - omap: support external wakeup
  - rv8803: allow to disable voltage drop detection
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCgAGBQJYASBeAAoJENiigzvaE+LCDO4QAJAi0TV2i0vYaJLDWyCGDx3P
 cts/Su2JdLgeLxilKvyYgwUpp8fsv681ZaZi+a6Jln/cn0MOcWwJoopiC30CSR8M
 9UxmRsFR9Ev/Cm/NZChcsTQwyTHOumnzZzxtnYr0RWOw7s4K68gEQEpWWT7qHTp1
 KVwfIvjAIPcozw25QWWGUWHu22PsI38NTH5Bg+rimMCToNbSDFAm+d62cdeIbkJF
 FoQIut0/Lh5UZ12+T8l0iBydY3bINeo1SZY5yAwQGRzJBecxRccbtKlnUjXnywke
 xAO5KQzegkLPTU4R6ssK/SQfVlDrfG3fkjWNvUEC/Vyw94v2SaFB1XjvlCXwL3mN
 XqzWXeestqFvKRjbYsM0NwsPX4+wxjDNq9YaAhpFYDAA9BL3vREB41qf/dCOFywG
 tqHBRpwN9g7u/72SLJ3icYdjmpaQIQbLF9wl8LJiPrWn4xwTNVIB2u3APcSuxE7/
 q49jD72LyEVhOUyGs0Hev584s4PC2fMoveq52ng0gMVbOtX0A0FJQQMcR2/2DIOp
 GLzPVuupx/8Eck9RFdr06Iv74j/bD7tScfiifZt6LfY5c8K7HOYykoskaRz3XMV4
 gx7Aajb8+jMVvI2TOthIa/WCXktQ8MBWTMZ6vbCxxpIRPBYuDqKmt1hXsYR5s6ql
 fMrn+tWltdRQKGIF2GrR
 =ZqqR
 -----END PGP SIGNATURE-----

Merge tag 'rtc-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "RTC for 4.9

  Subsystem:
   - delete owner assignment in multiple drivers
   - constify rtc_class_ops structures

  Drivers:
   - ac100: support clock-output-names
   - cmos: properly handle ACPI alarms and quirky BIOSes and other fixes
   - ds1307: fix century bit support while staying comaptible with
     previous behaviour by default
   - ds1347: switch to regmap
   - isl12057 is now handled by ds1307
   - omap: support external wakeup
   - rv8803: allow to disable voltage drop detection"

* tag 'rtc-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (25 commits)
  rtc: rv8803: set VDETOFF and SWOFF via device tree
  dt/bindings: Add bindings for Micro Crystal rv8803
  devicetree: Add Micro Crystal AG vendor id
  rtc: cmos: avoid unused function warning
  rtc: ac100: Add NULL checking for devm_kzalloc call
  rtc: ds1347: changed raw spi calls to register map calls
  rtc: cmos: Restore alarm after resume
  rtc: cmos: Clear ACPI-driven alarms upon resume
  rtc: omap: Support ext_wakeup configuration
  rtc: cmos: Initialize hpet timer before irq is registered
  rtc: asm9260: rework locking
  rtc: asm9260: allow COMPILE_TEST
  rtc: constify rtc_class_ops structures
  rtc: ac100: support clock-output-names in device tree binding
  rtc: rx6110: remove owner assignment
  rtc: pic32: Delete owner assignment
  rtc: bq32k: Fix handling of oscillator failure flag
  rtc: bq32k: Use correct mask name for 'minutes' register.
  rtc: sysfs: fix a cast removing the const attribute
  Documentation: dt: Intersil isl12057 is not a trivial device
  ...
2016-10-14 13:13:44 -07:00
Lee Jones
b304746c2a Merge branches 'ib-mfd-gpio-4.9', 'ib-mfd-gpio-regulator-4.9', 'ib-mfd-input-4.9', 'ib-mfd-regulator-4.9', 'ib-mfd-regulator-4.9.1', 'ib-mfd-regulator-rtc-4.9', 'ib-mfd-regulator-rtc-4.9-1' and 'ib-mfd-rtc-4.9' into ibs-for-mfd-merged 2016-10-04 15:47:01 +01:00
Raghavendra Ganiga
ee85bb5bbe rtc: ds1347: changed raw spi calls to register map calls
This patch changes calls of spi read write calls to register map
read and write calls in rtc ds1347

Signed-off-by: Raghavendra Chandra Ganiga <ravi23ganiga@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-09-22 00:14:40 +02:00
Marcin Niestroj
97ea1906b3 rtc: omap: Support ext_wakeup configuration
Support configuration of ext_wakeup sources. This patch makes it
possible to enable ext_wakeup and set it's polarity, depending on board
configuration. AM335x's dedicated PMIC (tps65217) uses ext_wakeup to
notify about power-button presses. Handling power-button presses enables
to recover from RTC-only power states correctly.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-09-21 21:46:04 +02:00
Alexandre Belloni
7f742e8e8a rtc: asm9260: allow COMPILE_TEST
The rtc-asm9260 driver compiles correctly on other architectures, add
COMPILE_TEST to improve code coverage.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-09-05 17:15:50 +02:00
Alexandre Belloni
e8aa7dcbf0 rtc: isl12057: remove driver
The Intersil isl12057 is now supported by the ds1307 driver.

Acked-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-08-31 18:21:34 +02:00
Alexandre Belloni
78aaa06d79 rtc: ds1307: add Intersil ISL12057 support
Intersil ISL12057 is a drop-in replacement for DS1337. It can be supported
by the ds1307 driver.

Acked-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-08-31 18:21:34 +02:00
Alexandre Belloni
50d6c0ea81 rtc: ds1307: fix century bit support
Add an option to properly support the century bit of ds1337 and compatibles
and ds1340.
Because the driver had a bug until now, it is not possible to switch users
to the fixed code directly as RTCs in the field will wrongly have the
century bit set.

Acked-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-08-31 18:21:34 +02:00
Wadim Egorov
5d2fd5c79e rtc: Kconfig: Name RK818 in Kconfig for RTC_DRV_RK808
The RK808 and RK818 PMICs are using a similar register map.
We can reuse the rtc driver for the RK818 PMIC. So let's add
the RK818 in the Kconfig description.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-08-31 13:48:57 +01:00
Chen-Yu Tsai
d00a18a42c rtc: ac100: Add RTC driver for X-Powers AC100
X-Powers AC100 is a codec / RTC combo chip. This driver supports
the RTC sub-device.

The RTC block also has clock outputs and non-volatile storage.
Non-volatile storage wthin the RTC hardware is not supported.
Clock output support is added in the next patch.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-08-08 12:53:36 +01:00
Benoît Thébaudeau
34166a00ec rtc: rv8803: Kconfig: Indicate rx8900 support
This driver supports the Epson RX8900, but this was not indicated in
Kconfig.

Signed-off-by: Benoît Thébaudeau <benoit@wsystem.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-07-28 09:59:30 +02:00
Arnd Bergmann
d6faca40f4 rtc: move mc146818 helper functions out-of-line
The mc146818_get_time/mc146818_set_time functions are rather large
inline functions in a global header file and are used in several
drivers and in x86 specific code.

Here we move them into a separate .c file that is compiled whenever
any of the users require it. This also lets us remove the linux/acpi.h
header inclusion from mc146818rtc.h, which in turn avoids some
warnings about duplicate definition of the TRUE/FALSE macros.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-06-26 01:20:08 +02:00
Arnd Bergmann
5ee98ab3a8 mn10300: use RTC_DRV_CMOS instead of CONFIG_RTC
nn10300 has a dependency on mc146818_get_time/mc146818_set_time,
which we want to move from the mc146818rtc.h header into the
rtc subsystem, which in turn is not usable on mn10300.

This changes mn10300 to use the modern rtc-cmos driver instead
of the old RTC driver, and that in turn lets us completely
remove the read_persistent_clock/update_persistent_clock callbacks.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-06-26 01:20:08 +02:00
Venkat Prashanth B U
06776c8921 rtc: add support for Maxim max6916
Add support for Maxim max6916 RTC.

Signed-off-by: Venkat Prashanth B U <venkat.prashanth2498@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-06-04 16:05:59 +02:00
Mylène Josserand
c2a1c14540 rtc: rv3029: Add support of RV3049
Add support of Microcrystal RV3049 RTC (SPI) using regmap on the
RV3029 (I2C) driver.

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-21 17:06:52 +02:00
Sergey Yanovich
d25a5ed37d rtc: ds1302: rewrite using SPI
DS1302 is an half-duplex SPI device. The driver respects this fact now.
Pin configurations should be implemented using SPI subsystem.

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-20 12:33:51 +02:00
Alexandre Belloni
399221ccf4 rtc: rv3029: stop mentioning rv3029c2
rv3029c2 is actually rv3029. c2 denotes an option.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-15 00:29:33 +01:00
Akinobu Mita
9408ec1af8 rtc: pcf2127: add support for spi interface
pcf2127 has selectable I2C-bus and SPI-bus interface support.

This adds support for SPI interface.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:41 +01:00
Michael Büsch
a696b31e2f rtc: rv3029: Add thermometer hwmon support
This adds support to
- enable/disable the thermometer
- set the temperature scanning interval
- read the current temperature that is used for temp compensation.
via hwmon interface

Signed-off-by: Michael Buesch <m@bues.ch>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:40 +01:00
Akinobu Mita
080481f54e rtc: merge ds3232 and ds3234
According to "Feature Comparison of the DS323x Real-Time Clocks"
(http://pdfserv.maximintegrated.com/en/an/AN5143.pdf), DS3232 and
DS3234 are very similar.

This merges rtc-ds3232 and rtc-ds3234 with using regmap.
This change also enables to support alarm for ds3234.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Suggested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:35 +01:00
Alexandre Belloni
832315b05b rtc: pxa: fix Kconfig indentation
The pxa section is indented using spaces, use tabs.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:34 +01:00
Alexandre Belloni
7a587eae2a rtc: enable COMPILE_TEST
There are several arch-specific RTC drivers that can be successfully
compiled on other platforms. Add a COMPILE_TEST dependency for those.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2016-03-14 17:08:31 +01:00
Alexandre Belloni
e0252ec77b rtc: always show I2C
Always show there is an I2C section, like the other sections.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:28 +01:00
Laxman Dewangan
726fe738bd rtc: max77686: Add support for MAX20024/MAX77620 RTC IP
Maxim Semiconductor's PMIC MAX77686 has RTC IP which is
reused in the MAX77620/MAX20024 PMICs.

Add support for these devices in MAX77686 RTC driver. This
device does not have RTC alarm pending status outside of
RTC IP. The RTC IP is having separate I2C address for its
register access.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:27 +01:00
Alexandre Belloni
d2c6b8743b rtc: rv3029: reword Kconfig option
The Kconfig option for rv3029 is not mentioning any part number, explicitly
show rv3029.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:25 +01:00
Soren Brinkmann
d084885e98 rtc: Group Kconfig entries by vendor
The RTC entries are mostly grouped by vendor. Move the few outliers in
place.
Also, change the one occurrence of 'nxp' to 'NXP' to make all NXP
entries consistent.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:22 +01:00
Joshua Henderson
51aa905c91 rtc: pic32: Add PIC32 real time clock driver
This driver adds support for the PIC32 real time clock and calendar
peripheral:
	- reading and setting time
	- alarms provided by dedicated IRQ

Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:21 +01:00
Oleksij Rempel
125e550fd2 rtc: add Alphascale asm9260 driver
Add support for RTC controller found on Alphascale asm9260
SoC.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:14 +01:00
Andre Przywara
2863934e23 rtc: allow compilation of sun6i RTC for all sunxi SoCs
At the moment the "sun6i" RTC drivers depends on having two specific
SoC families selected.
The Allwinner A64 SoC has the same RTC, so extend the Kconfig option
to allow inclusion of the driver for all Allwinner SoCs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:10 +01:00
Steffen Trumtrar
68298c2dac rtc: add driver for RX6110SA real time clock
The RX6110 comes in two different variants: SPI and I2C.
This driver only supports the SPI variant.

If the need ever arises to also support the I2C variant, this driver
could easily be refactored to support both cases.

Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:10 +01:00
Akinobu Mita
445c02076f rtc: ds1307: add temperature sensor support for ds3231
DS3231 has the temperature registers with a resolution of 0.25
degree celsius.  This enables to get the value through hwmon.

	# cat /sys/class/i2c-adapter/i2c-2/2-0068/hwmon/hwmon0/temp1_input
	21000

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-02-04 23:44:17 +01:00
Arnd Bergmann
04d3ba70a3 rtc: mt6397: add IRQ domain dependency
The mt6397 RTC driver can be built either when the MFD_MT6397 driver
is enabled (which selects IRQ_DOMAIN), or when compile testing.
The latter however fails without IRQ domains:

drivers/rtc/rtc-mt6397.c: In function 'mtk_rtc_probe':
drivers/rtc/rtc-mt6397.c:326:13: error: implicit declaration of function 'irq_create_mapping' [-Werror=implicit-function-declaration]
  rtc->irq = irq_create_mapping(mt6397_chip->irq_domain, res->start);

This adds an explicit dependency for the COMPILE_TEST case.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-02-04 23:44:17 +01:00
Javier Martinez Canillas
cd0e7c1e54 rtc: Remove Maxim 77802 driver
The max77686 RTC driver now supports the max77802 RTC as
well so there's no need to have a separate driver anymore.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-02-04 23:44:15 +01:00
Akshay Bhat
ed13d89b08 rtc: Add Epson RX8010SJ RTC driver
This driver supports the following functions:
 - reading and setting time
 - alarms when connected to an IRQ
 - reading and clearing the voltage low flags

Datasheet:
http://www.epsondevice.com/docs/qd/en/DownloadServlet?id=ID000956
Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-01-11 20:19:59 +01:00
Alexandre Belloni
1e3929ef0e rtc: Add a driver for Micro Crystal RV8803
This driver supports the following functions:
 - reading and settings time
 - alarms when connected to an IRQ
 - reading and clearing the voltage low flags
 - nvram

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-11-08 14:12:32 +01:00
Ivan Grimaldi
fa395fb8fc rtc: ds1390: Add trickle charger device tree binding
Introduce a device tree binding for specifying the trickle charger
configuration for ds1390.

Signed-off-by: Ivan Grimaldi <grimaldi.ivan@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-11-08 14:12:23 +01:00
Suneel Garapati
11143c19eb rtc: add xilinx zynqmp rtc driver
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>
2015-09-05 19:37:19 +02:00
Rob Herring
3cdf4ad963 rtc: pxa: convert to use shared sa1100 functions
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>
2015-09-05 19:37:15 +02:00
S Twiss
80ca3277bc rtc: da9063: Add DA9062 RTC capability to DA9063 RTC driver
Add DA9062 RTC support into the existing DA9063 RTC driver component by
using generic access tables for common register and bit mask definitions.

The following change will add generic register and bit mask support to the
DA9063 RTC. The changes are slightly complicated by requiring support for
three register sets: DA9063-AD, DA9063-BB and DA9062-AA.

The following alterations have been made to the DA9063 RTC:

- Addition of a da9063_compatible_rtc_regmap structure to hold all generic
  registers and bitmasks for this type of RTC component.
- A re-write of struct da9063 to use pointers for regmap and compatible
  registers/masks definitions
- Addition of a of_device_id table for DA9063 and DA9062 defaults
- Refactoring functions to use struct da9063_compatible_rtc accesses to
  generic registers/masks instead of using defines from registers.h
- Re-work of da9063_rtc_probe() to use of_match_node() and dev_get_regmap()
  to provide initialisation of generic registers and masks and access to
  regmap

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05 13:19:08 +02:00
Joachim Eastwood
c28b42e3ae rtc: add rtc-lpc24xx driver
Add driver for the RTC found on NXP LPC178x/18xx/408x/43xx devices.
The RTC provides calendar and clock functionality together with
alarm interrupt support.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-09-05 13:19:06 +02:00
Shawn Guo
8a0fa18436 rtc: snvs: select option REGMAP_MMIO
Select REGMAP_MMIO to fix the following build error seen with x86_64
randconfig.

  drivers/built-in.o: In function `snvs_rtc_probe':
rtc-snvs.c:(.text+0x567730): undefined reference to `devm_regmap_init_mmio_clk'

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Frank Li <Frank.Li@freescale.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-08-11 23:04:47 +08:00
Linus Torvalds
78c10e556e Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:

 - Improvements to the tlb_dump code
 - KVM fixes
 - Add support for appended DTB
 - Minor improvements to the R12000 support
 - Minor improvements to the R12000 support
 - Various platform improvments for BCM47xx
 - The usual pile of minor cleanups
 - A number of BPF fixes and improvments
 - Some improvments to the support for R3000 and DECstations
 - Some improvments to the ATH79 platform support
 - A major patchset for the JZ4740 SOC adding support for the CI20 platform
 - Add support for the Pistachio SOC
 - Minor BMIPS/BCM63xx platform support improvments.
 - Avoid "SYNC 0" as memory barrier when unlocking spinlocks
 - Add support for the XWR-1750 board.
 - Paul's __cpuinit/__cpuinitdata cleanups.
 - New Malta CPU board support large memory so enable ZONE_DMA32.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
  MIPS: spinlock: Adjust arch_spin_lock back-off time
  MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
  MIPS: BCM47xx: Simplify handling SPROM revisions
  MIPS: Cobalt Don't use module_init in non-modular MTD registration.
  MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
  MIPS: use for_each_sg()
  MIPS: BCM47xx: Don't select BCMA_HOST_PCI
  MIPS: BCM47xx: Add helper variable for storing NVRAM length
  MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
  MIPS: Replace smp_mb with release barrier function in unlocks.
  MIPS: i8259: DT support
  MIPS: Malta: Basic DT plumbing
  MIPS: include errno.h for ENODEV in mips-cm.h
  MIPS: Define GCR_GIC_STATUS register fields
  MIPS: BPF: Introduce BPF ASM helpers
  MIPS: BPF: Use BPF register names to describe the ABI
  MIPS: BPF: Move register definition to the BPF header
  MIPS: net: BPF: Replace RSIZE with SZREG
  MIPS: BPF: Free up some callee-saved registers
  MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
  ...
2015-06-27 12:44:34 -07:00
Linus Torvalds
c13c810063 RTC for 4.2
Core:
  - Coding style and whitespace fixes (interface, Makefile and Kconfig)
  - New rtc_tm_sub() helper
  - New CONFIG_RTC_SYSTOHC_DEVICE option
  - Removed rtc_set_mmss()
 
 New drivers:
  - Mediatek MT6397
  - Cortina Gemini
 
 Drivers:
  - Year 2106 fixes for isl1208, pcf8563 and sunxi
  - update author email for at32ap700x and efi
  - ds1307: alarm fix
  - efi: use correct EFI 'epoch'
  - hym8563: make irq optional
  - imxdi: cleanups and better handling of the security/tamper monitoring
  - snvs: fix wakealarm
  - Compilation fixes or warning removal for gemini, mt6397, palmas, pfc8563
  - Trivial cleanups for ab8500, ds1216, ds1286, ds1672, ep93xx,
 hid-sensor-time, max6900, max8998, max77686, max77802, mc13xxx, mv, mxc, s3c,
 spear, v3020
  - Kconfig fixes for stmp3xxx and xgene
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJVi7VHAAoJEKbNnwlvZCyzv+YP/1sMAsrusvx3cUEmhJurNk5H
 +vPUdogbr8df9voLkHqTaK1B5+LrL5EXYu+y/6VOwaLIiYv7P9k/eOeZ44fraidc
 H7xnDQ7cOGzE5LpjPg8+o56rh3rGDF1UdZBwbFTgfv4gmZi+GAf+2MEUam+dVVtF
 K9+7Xu77A6EgW+h2uHix8GVtflHdRk/Vxjxl0uOR9BM9O883N5dYYZ7sjenfG65D
 dctAEo+U1xUCw3GCIQ63DvD0joThQk7IB9xJmK/lE5nIv4tbGp5PV8VSNkjKxbFz
 1wa9SR1dhBdjbJ6ZeHh8N5EJ0d5MrssW1blsb7/06MHTu0KYgCndU5EEDOE2pVqD
 GJooYa6RsNqz/KElJ7/0z4T+DJxW7BWaZYRIwv4jpuA4/Y74O5FDw0ULOqxhB8zd
 kVgfWb0feNQikaZio8gOyzIBkw3CBZBu+f6HMJGaeYWSzTNsDLgA8ee7mUawMP31
 ljOxOuPMiTGUbAczK9URo/acZYWNyCOQdm85FxCuwCuPe48m7CyTU6wWBX0Vwj5q
 y3sHH5stcykCesneNj+IJ8v/knqo9d6M43CbCbwBeo0DJskuXF6jjQ9QLBNZP9U0
 7qQa7isL3j3J7T5EouJIBQH2yy4SFiffVOZOPbJ8l+iRUPZUMdOEs2VkQs8BKIZ+
 znu/Ov941h8/HbyI6rcl
 =mugF
 -----END PGP SIGNATURE-----

Merge tag 'rtc-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Core:
   - Coding style and whitespace fixes (interface, Makefile and Kconfig)
   - New rtc_tm_sub() helper
   - New CONFIG_RTC_SYSTOHC_DEVICE option
   - Removed rtc_set_mmss()

  New drivers:
   - Mediatek MT6397
   - Cortina Gemini

  Drivers:
   - Year 2106 fixes for isl1208, pcf8563 and sunxi
   - update author email for at32ap700x and efi
   - ds1307: alarm fix
   - efi: use correct EFI 'epoch'
   - hym8563: make irq optional
   - imxdi: cleanups and better handling of the security/tamper monitoring
   - snvs: fix wakealarm
   - Compilation fixes or warning removal for gemini, mt6397, palmas, pfc8563
   - Trivial cleanups for ab8500, ds1216, ds1286, ds1672, ep93xx,
     hid-sensor-time, max6900, max8998, max77686, max77802, mc13xxx, mv,
     mxc, s3c, spear, v3020
   - Kconfig fixes for stmp3xxx and xgene"

* tag 'rtc-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (48 commits)
  rtc: remove useless I2C dependencies
  rtc: whitespace fixes
  rtc: Properly sort Makefile
  MAINTAINERS: Add RTC subsystem repository
  rtc: pfc8563: fix uninitialized variable warning
  rtc: ds1307: Enable the mcp794xx alarm after programming time
  rtc: hym8563: make the irq optional
  rtc: gemini: fix cocci warnings
  rtc: mv: correct 24 hour error message
  rtc: mv: use BIT()
  rtc: efi: use correct EFI 'epoch'
  rtc: interface: Remove rtc_set_mmss()
  sparc: time: Replace update_persistent_clock() with CONFIG_RTC_SYSTOHC
  rtc: NTP: Add CONFIG_RTC_SYSTOHC_DEVICE for NTP synchronization
  rtc: sunxi: Replace deprecated rtc_tm_to_time()
  rtc: isl1208: Replace deprecated rtc_tm_to_time()
  rtc: Introduce rtc_tm_sub() helper function
  rtc: pcf8563: Replace deprecated rtc_time_to_tm() and rtc_tm_to_time()
  rtc: palmas: Initialise bb_charging flag before using it
  rtc: simplify use of devm_ioremap_resource
  ...
2015-06-25 18:55:33 -07:00
Alexandre Belloni
3783055ef4 rtc: remove useless I2C dependencies
Multiple options depend on I2C but are already under under if I2C. Remove
those useless dependencies.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25 01:13:48 +02:00
Alexandre Belloni
98ab2c938c rtc: whitespace fixes
Some entries in the Kconfig are improperly indented with spaces instead of
tabs.
Also fix whitespaces in Makefile.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25 01:13:47 +02:00
Xunlei Pang
9c5150b31b rtc: NTP: Add CONFIG_RTC_SYSTOHC_DEVICE for NTP synchronization
Currently, CONFIG_RTC_SYSTOHC uses CONFIG_RTC_HCTOSYS_DEVICE which
is originally used by CONFIG_RTC_HCTOSYS, but this rtc device has
some limiations, for example, it must be battery-backed, be able
to work with irq off and through system suspension, etc.

So add CONFIG_RTC_SYSTOHC_DEVICE used exclusively for CONFIG_RTC_SYSTOHC,
it is more lenient compared to CONFIG_RTC_HCTOSYS_DEVICE, and could
be assigned any available RTC in the system.

Default value is CONFIG_RTC_HCTOSYS_DEVICE which is "rtc0" by default.
After this patch, NTP will sync up "rtc0" by default.

Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25 01:13:42 +02:00
Hans Ulli Kroll
98a9bb5bf4 rtc: driver for Cortina Gemini
Driver for the on chip RTC found on Cortina's SoC Gemini.

Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
[alexandre.belloni@free-electrons.com: use devm_request_irq() and remove
useless goto]
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25 01:13:39 +02:00
Alexandre Belloni
20d048ac8b rtc: stmp3xxx select STMP_DEVICE
rtc-stmp3xxx depends on lib/stmp_device, select it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25 01:13:39 +02:00
Tianping Fang
fc2979118f rtc: mediatek: Add MT6397 RTC driver
Add Mediatek MT6397 RTC driver

Signed-off-by: Tianping Fang <tianping.fang@mediatek.com>
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25 01:13:35 +02:00