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path: root/drivers/rtc/rtc-isl1208.c
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2024-06-28rtc: isl1208: Update correct procedure for clearing alarmBiju Das1-5/+7
As per the latest HW manual[1], there is an internal delay(~250 microsec) from setting ALME = 0 to disabling the alarm function, so the user must add a short delay of greater than 250µs between setting ALME = 0 and clearing ALM. Currently setting of ALME = 0 is done after clearing the ALM, so just reverse the operation and add a delay of 275 microsec. [1]https://www.renesas.com/us/en/document/dst/raa215300-datasheet?r=1506351 Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20240618152635.48956-3-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-06-28rtc: isl1208: Add a delay for clearing alarmBiju Das1-0/+13
As per the latest HW manual[1], the INT# output is pulled low after the alarm is triggered. After the INT# output is pulled low, it is low for at least 250ms, even if the correct action is taken to clear it. It is impossible to clear ALM if it is still active. The host must wait for the RTC to progress past the alarm time plus the 250ms delay before clearing ALM. [1]https://www.renesas.com/us/en/document/dst/raa215300-datasheet?r=1506351 Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20240618152635.48956-2-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-06-28rtc: isl1208: Fix return value of nvmem callbacksJoy Chakraborty1-7/+4
Read/write callbacks registered with nvmem core expect 0 to be returned on success and a negative value to be returned on failure. isl1208_nvmem_read()/isl1208_nvmem_write() currently return the number of bytes read/written on success, fix to return 0 on success and negative on failure. Fixes: c3544f6f51ed ("rtc: isl1208: Add new style nvmem support to driver") Cc: stable@vger.kernel.org Signed-off-by: Joy Chakraborty <joychakr@google.com> Link: https://lore.kernel.org/r/20240612080831.1227131-1-joychakr@google.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-08-27rtc: isl1208: Fix incorrect logic in isl1208_set_xtoscb()Biju Das1-2/+1
The XTOSCB bit is not bit 0, but xtosb_val is either 0 or 1. If it is 1, test will never succeed. Fix this issue by using double negation. While at it, remove unnecessary blank line from probe(). Reported-by: Pavel Machek <pavel@denx.de> Closes: https://lore.kernel.org/all/ZN4BgzG2xmzOzdFZ@duo.ucw.cz/ Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Pavel Machek <pavel@denx.de> Link: https://lore.kernel.org/r/20230817161038.407960-1-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-07-27rtc: Explicitly include correct DT includesRob Herring1-1/+1
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230724205456.767430-1-robh@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-07-27rtc: isl1208: Simplify probe()Biju Das1-11/+3
Simplify the probe() by replacing of_device_get_match_data() and i2c_match_id() by i2c_get_match_data() as we have similar I2C and DT-based matching table. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230710114747.106496-1-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26rtc: isl1208: Add support for the built-in RTC on the PMIC RAA215300Biju Das1-0/+12
The built-in RTC found on PMIC RAA215300 is the same as ISL1208. However, the external oscillator bit is inverted on PMIC version 0x11. The PMIC driver detects PMIC version and instantiates the RTC device based on i2c_device_id. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20230623140948.384762-11-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26rtc: isl1208: Add isl1208_set_xtoscb()Biju Das1-6/+51
As per the HW manual, set the XTOSCB bit as follows: If using an external clock signal, set the XTOSCB bit as 1 to disable the crystal oscillator. If using an external crystal, the XTOSCB bit needs to be set at 0 to enable the crystal oscillator. Add isl1208_set_xtoscb() to set XTOSCB bit based on the clock-names property. Fallback is enabling the internal crystal oscillator. While at it, introduce a variable "sr" for reading the status register in probe() as it is reused for writing and also remove the unnecessary blank line. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20230623140948.384762-10-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26rtc: isl1208: Drop enum isl1208_id and split isl1208_configs[]Biju Das1-23/+33
Drop enum isl1208_id and split the array isl1208_configs[] as individual variables, and make lines shorter by referring to e.g. &config_isl1219 instead of &isl1208_configs[TYPE_ISL1219]. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230623140948.384762-9-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26rtc: isl1208: Make similar I2C and DT-based matching tableBiju Das1-6/+6
The isl1208_id[].driver_data could store a pointer to the config, like for DT-based matching, making I2C and DT-based matching more similar. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230623140948.384762-8-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26rtc: isl1208: Drop name variableBiju Das1-5/+4
Drop unused name variable from struct isl1208_config. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230623140948.384762-7-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-06rtc: Switch i2c drivers back to use .probe()Uwe Kleine-König1-1/+1
After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230505121136.1185653-1-u.kleine-koenig@pengutronix.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2022-11-15rtc: isl1208: Convert to .probe_new()Uwe Kleine-König1-2/+4
.probe_new() doesn't get the i2c_device_id * parameter, so determine that explicitly in .probe(). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221021130706.178687-4-u.kleine-koenig@pengutronix.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2022-06-24rtc: isl1208: do not advertise update interrupt feature if no interrupt ↵Quentin Schulz1-3/+7
specified If an ISL1208 device does not have an interrupt line routed, the feature shouldn't be advertised (it is by default in rtc core) or it'll confuse userspace requesting that feature (such as hwclock from util-linux). Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220523145320.123713-1-foss+kernel@0leil.net
2021-02-06rtc: isl1208: quiet maybe-unused variable warningAlexandre Belloni1-1/+1
When CONFIG_OF is disabled then the matching table is not referenced. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210202112219.3610853-9-alexandre.belloni@bootlin.com
2020-11-19rtc: rework rtc_register_device() resource managementBartosz Golaszewski1-1/+1
rtc_register_device() is a managed interface but it doesn't use devres by itself - instead it marks an rtc_device as "registered" and the devres callback for devm_rtc_allocate_device() takes care of resource release. This doesn't correspond with the design behind devres where managed structures should not be aware of being managed. The correct solution here is to register a separate devres callback for unregistering the device. While at it: rename rtc_register_device() to devm_rtc_register_device() and add it to the list of managed interfaces in devres.rst. This way we can avoid any potential confusion of driver developers who may expect there to exist a corresponding unregister function. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20201109163409.24301-8-brgl@bgdev.pl
2020-11-19rtc: add devm_ prefix to rtc_nvmem_register()Bartosz Golaszewski1-1/+1
rtc_nvmem_register() is a managed interface. It doesn't require any release function to be called at driver detach. To avoid confusing driver authors, let's rename it to devm_rtc_nvmem_register() and add it to the list of managed interfaces in Documentation/. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20201109163409.24301-6-brgl@bgdev.pl
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner1-6/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-17rtc: isl1208: Add new style nvmem support to driverTrent Piepho1-0/+50
Add support for the RTC's NVRAM using the standard nvmem support that is part of the Linux RTC framework. This driver already has a sysfs attribute that provides access to the RTC's NVRAM as a single 16-bit value. Some chips have more than two bytes of NVRAM, so this will not work for them. It's also non-standard. This sysfs attribute is left in for backward compatibility, but will only be able to read the first two bytes of NVRAM. The nvmem interface will allow access to all NVRAM, e.g. eight bytes on the isl1218. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-02-17rtc: isl1208: Support more chip variationsTrent Piepho1-22/+55
Add more support in the driver for dealing with differences in is1208 compatible chips. Put the 1208, 1209, 1218, and 1219 in the list and encode information about nvram size, tamper, and timestamp features. This adds support for the isl1209, which has a tamper detect but no timestamp feature. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-02-17rtc: isl1208: Introduce driver state structTrent Piepho1-12/+21
This driver has no state of its own, depending entirely on what is in the generic rtc device. Intoduce a state struct. For now it only contains a pointer to the rtc device struct, but future patches will add more data. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-01-10rtc: isl1208: fix negative digital trim reportingTrent Piepho1-4/+5
isl1208_i2c_get_dtr() was returning the dtr value directly, but could also return a negative error code. Negative trimming values, e.g. -20, would get interpreted as an error code, e.g. -ENOTDIR. This patch offsets the dtr value by 100 so it's positive and won't alias an error code. Also fix check that considered a return value of -1 to be success. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-11-22rtc: isl1208: Use i2c block read/write routinesTrent Piepho1-33/+4
The Linux i2c layer has functions to execute common SMBUS/I2C transactions. The register access code here is identical to the I2C read/write block data routines. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-09-28rtc: isl1208: don't include core header fileAlexandre Belloni1-4/+3
The core header file is reserved for the core, stop including it. Also reorder includes alphabetically. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-09-28rtc: isl1208: avoid possible sysfs raceAlexandre Belloni1-17/+10
Use rtc_add_group to add the common sysfs group to avoid a possible race condition. [Denis.Osterland@diehl.com: use to_i2c_client(dev->parent)] Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> The move of atrim, dtrim usr sysfs properties from i2c device to rtc device require to access them via dev->parent. This patch also aligns timestamp0.
2018-08-14rtc: isl1208: set ev-evienb bit from device treeDenis Osterland1-3/+18
Add support to disable event in pull-up. Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-08-14rtc: isl1208: Add "evdet" interrupt source for isl1219Denis Osterland1-16/+30
Add support for "evdet" named interrupt source. The check if i2c client irq matches evdet irq is needed for the case that there is only one interrupt named "evdet". In this case i2c client code handles this like an unnamed interrupt souce and assigns the value. Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com> Reviewed-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-08-14rtc: isl1208: add support for isl1219 with tamper detectionMichael Grzeschik1-7/+124
We add support for the ISL1219 chip that got an integrated tamper detection function. This patch implements the feature by adding an additional timestamp0 file to sysfs device path. This file contains seconds since epoch, if an event occurred, or is empty, if none occurred. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-03-17rtc: isl1208: switch to rtc_register_deviceDenis Osterland1-4/+4
Fix possible race condition. It is not allowed to return with an error code after RTC is registered. Suggested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com> Reviewed-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-03-17rtc: isl1208: enable interrupt after context preparationMichael Grzeschik1-17/+17
The interrupt handler got enabled very early. If the interrupt cause is triggering immediately before the context is fully prepared. This can lead to undefined behaviour. Therefor we move the interrupt enable code to the end of the probe function. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-03-01rtc: isl1208: Fix unintended clear of SR bitsDenis Osterland1-0/+5
After successful sr = isl1208_i2c_set_regs(client, 0, regs, ISL1208_RTC_SECTION_LEN); sr will be 0. As a result sr = i2c_smbus_write_byte_data(client, ISL1208_REG_SR, sr & ~ISL1208_REG_SR_WRTC); is equal to sr = i2c_smbus_write_byte_data(client, ISL1208_REG_SR, 0); which clears all flags in SR. Add an additional read of SR, to have value of SR in sr again. Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2017-03-09rtc: isl1208: Add OF device ID tableJavier Martinez Canillas1-2/+10
The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-05-20rtc: remove useless DRV_VERSIONAlexandre Belloni1-6/+0
Many drivers are defining a DRV_VERSION. This is often only used for MODULE_VERSION and sometimes to print an info message at probe time. This is kind of pointless as they are all versionned with the kernel anyway. Also the core will print a message when a new rtc is found. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-11-08rtc: isl1208: Pass the IRQF_ONESHOT flagFabio Estevam1-1/+1
Since commit 1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. So pass the IRQF_ONESHOT flag in this case. The semantic patch that makes this change is available in scripts/coccinelle/misc/irqf_oneshot.cocci Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: isl1208: Replace deprecated rtc_tm_to_time()Xunlei Pang1-8/+1
isl1208_i2c_set_alarm() uses deprecated rtc_tm_to_time(), which will overflow in year 2106 on 32-bit machines. This patch solves this by: - Replacing rtc_tm_to_time() with rtc_tm_sub() Cc: Herbert Valerio Riedel <hvr@gnu.org> Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2013-11-13drivers/rtc/rtc-isl1208.c: use devm_* APIsSachin Kamat1-25/+11
devm_* APIs are device managed and make code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Herbert Valerio Riedel <hvr@gnu.org> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-13drivers/rtc/rtc-isl1208.c: remove redundant checksSachin Kamat1-5/+1
i2c_smbus_read_byte_data() returns negative errno on failure. Return the value obtained from it directly. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Herbert Valerio Riedel <hvr@gnu.org> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05drivers/rtc/rtc-isl1208.c: call rtc_update_irq() from the alarm irq handlerJan Luebbe1-0/+3
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> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-19Fix misspellings of "whether" in comments.Adam Buchbinder1-1/+1
"Whether" is misspelled in various comments across the tree; this fixes them. No code changes. Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-06drivers/rtc/rtc-isl1208.c: convert struct i2c_msg initialization to C99 formatShubhrajyoti D1-4/+16
Convert the struct i2c_msg initialization to C99 format. This makes maintaining and editing the code simpler. Also helps once other fields like transferred are added in future. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.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>
2012-10-06drivers/rtc/rtc-isl1208.c: add support for the ISL1218Ben Gardner1-0/+1
The ISL1218 chip is identical to the ISL1208, except that it has 6 additional user-storage registers. This patch does not enable access to those additional registers, but only adds the chip name to the list. Signed-off-by: Ben Gardner <gardner.ben@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>
2012-03-23rtc: convert rtc i2c drivers to module_i2c_driverAxel Lin1-14/+1
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>
2011-03-22drivers/rtc/rtc-isl1208.c: add alarm supportRyan Mallon1-5/+171
Add alarm/wakeup support to rtc isl1208 driver Signed-off-by: Ryan Mallon <ryan@bluewatersys.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>
2010-05-25rtc-isl1208: use sysfs_{create/remove}_groupH Hartley Sweeten1-34/+11
Instead of individually creating and removing the sysfs device attribute files, wrap them in an attribute_group and use sysfs_{create/remove}_group. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-23rtc: rtc-isl1208: reject invalid datesChris Elston1-0/+7
This patch for the rtc-isl1208 driver makes it reject invalid dates. Signed-off-by: Chris Elston <celston@katalix.com> [a.zummo@towertech.it: added comment explaining the check] Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: Hebert Valerio Riedel <hvr@gnu.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20drivers/rtc/: use bcd2bin/bin2bcdAdrian Bunk1-21/+21
Change drivers/rtc/ to use the new bcd2bin/bin2bcd functions instead of the obsolete BCD_TO_BIN/BIN_TO_BCD/BCD2BIN/BIN2BCD macros. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12rtc-isl1208: fix double removal of a sysfs entryAlessandro Zummo1-1/+1
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: Herbert Valerio Riedel <hvr@gnu.org> Cc: Hartley Sweeten <hartleys@visionengravers.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29i2c: Convert most new-style drivers to use module aliasingJean Delvare1-0/+7
Based on earlier work by Jon Smirl and Jochen Friedrich. Update most new-style i2c drivers to use standard module aliasing instead of the old driver_name/type driver matching scheme. I've left the video drivers apart (except for SoC camera drivers) as they're a bit more diffcult to deal with, they'll have their own patch later. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Jon Smirl <jonsmirl@gmail.com> Cc: Jochen Friedrich <jochen@scram.de>
2008-04-29i2c: Add support for device alias namesJean Delvare1-1/+1
Based on earlier work by Jon Smirl and Jochen Friedrich. This patch allows new-style i2c chip drivers to have alias names using the official kernel aliasing system and MODULE_DEVICE_TABLE(). At this point, the old i2c driver binding scheme (driver_name/type) is still supported. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Jochen Friedrich <jochen@scram.de> Cc: Jon Smirl <jonsmirl@gmail.com> Cc: Kay Sievers <kay.sievers@vrfy.org>
2008-04-28rtc-isl1208: new style conversion and minor bug fixesAlessandro Zummo1-187/+170
[akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: Herbert Valerio Riedel <hvr@gnu.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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