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path: root/drivers/rtc/rtc-max77686.c
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2015-06-25rtc: max77686: Report platform modalias to fix module autoloadJavier Martinez Canillas1-0/+1
If the rtc-max77686 driver is built as a module, modalias information is not filled so the module is not autoloaded. Use the MODULE_DEVICE_TABLE() macro to export the platform ID table so the module contains that data. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-04-17rtc: use more standard kernel logging stylesJoe Perches1-2/+4
Neaten the logging a bit by adding #define pr_fmt Miscellanea: o Remove __FILE__/__func__ uses o Coalesce formats adding missing spaces o Align arguments o (rtc-cmos) Integrated 2 consecutive messages Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Joshua Kinard <kumba@gentoo.org> Cc: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-20rtc: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-14rtc: max77686: Use ffs() to calculate tm_wdayJavier Martinez Canillas1-11/+2
max77686_rtc_calculate_wday() is used to calculate the day of the week to be filled in struct rtc_time but that function only calculates the number of bits shifted. So the ffs() function can be used to find the first bit set instead of a special function. [akpm@linux-foundation.org: add comment clarifying ffs() use] Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: max77686: remove unneeded info logJavier Martinez Canillas1-2/+0
If devm_rtc_device_register() fails a dev_err() is already reported so there is no need to do an additional dev_info(). Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Cc: Doug Anderson <dianders@chromium.org> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: max77686: fail to probe if no RTC regmap irqchip is setJavier Martinez Canillas1-0/+6
The max77686 mfd driver adds a regmap IRQ chip which creates an IRQ domain that is used to map the virtual RTC alarm1 interrupt. The RTC driver assumes that this will always be true since the PMIC IRQ is a required property according to the max77686 DT binding doc. If an "interrupts" property is not defined for a max77686 PMIC, then the mfd probe function will fail and the RTC platform driver will never be probed. But even when it is not possible to probe the rtc-max77686 driver without a regmap IRQ chip, it's better to explicitly check if the IRQ chip data is not NULL and gracefully fail instead of getting an OOPS. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Doug Anderson <dianders@chromium.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: max77686: remove dead code for SMPL and WTSRJavier Martinez Canillas1-101/+0
The MAX77686 RTC chip has two features called SMPL (Sudden Momentary Power Loss) and WTSR (Watchdog Timeout and Software Resets). Support for these features seems to be implemented in the driver but compilation is disabled using a C pre-processor conditional. This code has been disabled since the driver was original merged in commit fca1dd031a28 ("rtc: max77686: add Maxim 77686 driver"). So, since this code has never been built, let's just remove it. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Doug Anderson <dianders@chromium.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: max77686: Allow the max77686 rtc to wakeup the systemDoug Anderson1-0/+28
This series add support for the Real Time clock present in the Maxim 77802 Power Managment IC. The version number is quite high because it previously was part of a bigger series [0] that aimed to add support for all the devices in the max77802 PMIC. But now that the max77802 dependencies were already merged for 3.17, the series were split but I kept the version numbering. While working on the max77802 rtc support a lot of feedback was given and the issues pointed out also apply to a driver for a similar PMIC RTC (max77686). So patches 01/06 to 05/06 in the series are cleanups for the max77686 driver and patch 06/06 adds the support for the max77802 RTC. The series were tested on an Exynos5250 Snow (max77686) and Exynos5420 Peach Pit (max77802) machines. This patch (of 6): The max77686 includes an RTC that keeps power during suspend. It's convenient to be able to use it as a wakeup source. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-07-21mfd: max77686: Convert to use regmap_irqJavier Martinez Canillas1-19/+8
By using the generic IRQ support in the Register map API, it is possible to get rid max77686-irq.c and simplify the code. Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-09-11drivers/rtc/rtc-max77686.c: Fix wrong registerSangjung Woo1-2/+2
Fix a read of the wrong register when checking whether the RTC timer has reached the alarm time. Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com> Signed-off-by: Myugnjoo Ham <myungjoo.ham@samsung.com> Reviewed-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03drivers/rtc/rtc-max77686.c: remove empty functionSachin Kamat1-6/+0
After the switch to devm_* functions and the removal of rtc_device_unregister(), the 'remove' function does not do anything. Delete it. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Chiwoong Byun <woong.byun@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03drivers/rtc/rtc-max77686.c: remove space before semicolonSachin Kamat1-1/+1
Fixes the following warning: WARNING: space prohibited before semicolon Signed-off-by: Sachin Kamat <sachin.kamat@linaro.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>
2013-04-29drivers/rtc/rtc-max77686.c: use devm_regmap_init_i2c()Sachin Kamat1-1/+1
This driver already uses other devm_* APIs. Convert regmap_init_i2c too. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Chiwoong Byun <woong.byun@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29drivers/rtc/rtc-max77686.c: fix incorrect return value on errorSachin Kamat1-4/+4
'ret' was not initialized to error code before returning. While at it also remove some redundant code and cleanup. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Chiwoong Byun <woong.byun@samsung.com> Cc: Jonghwa Lee <jonghwa3.lee@samsung.com> Cc: Laxman dewangan <ldewangan@nvidia.com> Cc: Venu Byravarasu <vbyravarasu@nvidia.com> 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>
2013-04-29rtc: rtc-max77686: use devm_rtc_device_register()Jingoo Han1-11/+4
devm_rtc_device_register() is device managed and makes cleanup paths simpler. Also, this patch uses devm_request_threaded_irq(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29drivers/rtc/rtc-max77686.c: use dev_info()/dev_emerg() instead of ↵Jingoo Han1-6/+9
pr_info()/pr_emerg() dev_info()/dev_emerg() are preferred to pr_info()/pr_emerg(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29drivers/rtc/rtc-max77686.c: fix indentation of bit definitionsJingoo Han1-5/+5
Fix indentation of bit definitions to enhance the readability. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29drivers/rtc/rtc-max77686.c: use devm_kzalloc()Jingoo Han1-7/+2
Use devm_kzalloc() to make cleanup paths more simple. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29drivers/rtc/rtc-max77686.c: add missing module author nameJingoo Han1-1/+1
Add missing module author name to MODULE_AUTHOR macro. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29drivers/rtc/rtc-max77686.c: use module_platform_driver()Jingoo Han1-11/+1
Use module_platform_driver() macro which makes the code smaller and simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-21rtc: max77686: use dev_info() instead of printk()Jingoo Han1-2/+2
Fix the checkpatch warning as below: WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-21rtc: max77686: add Maxim 77686 driverJonghwa Lee1-0/+641
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: Chiwoong Byun <woong.byun@samsung.com> Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myugnjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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