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* rtc: at91sam9: Remove unnecessary offset variable checksNobuhiro Iwamatsu2021-07-101-1/+1
| | | | | | | | | | | | | | The offset variable is checked by at91_rtc_readalarm(), but this check is unnecessary because the previous check knew that the value of this variable was not 0. This removes that unnecessary offset variable checks. Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210708051340.341345-1-nobuhiro1.iwamatsu@toshiba.co.jp
* rtc: rework rtc_register_device() resource managementBartosz Golaszewski2020-11-191-1/+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
* rtc: use devm_platform_ioremap_resource() to simplify codeYueHaibing2019-10-071-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20191006102953.57536-2-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-3-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-4-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-5-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-6-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-7-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-8-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-9-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-10-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-11-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-12-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-13-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-14-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-15-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-16-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-17-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-18-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-19-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-20-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-21-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-22-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-23-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-24-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-25-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-26-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-27-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-28-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-29-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-30-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-31-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-32-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-33-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-34-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20191006102953.57536-35-yuehaibing@huawei.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: Remove dev_err() usage after platform_get_irq()Stephen Boyd2019-08-131-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: linux-rtc@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20190730181557.90391-40-swboyd@chromium.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: correct trivial checkpatch warningsAlexandre Belloni2019-04-041-20/+20
| | | | | | | | Correct trivial checkpatch warnings, mostly whitespace issues and unbalanced braces. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: convert to SPDX identifierAlexandre Belloni2019-04-041-5/+1
| | | | | | | Use SPDX-License-Identifier instead of a verbose license text Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni2019-04-041-10/+4
| | | | | | | | Call the 64bit versions of rtc_tm time conversion as the range is enforced by the core. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: set rangeAlexandre Belloni2019-04-041-0/+1
| | | | | | | | The AT91 RTT is a 32bit second counter that is saved in a 32bit global purpose register. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: convert to devm_rtc_allocate_deviceAlexandre Belloni2019-04-041-3/+4
| | | | | | | This allows further improvement of the driver. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: drop platform_data supportAlexandre Belloni2019-04-041-36/+8
| | | | | | | ARCH_AT91 is DT only for a while, drop platform data support. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: Switch to use %ptRAndy Shevchenko2018-12-101-12/+4
| | | | | | | | Use %ptR instead of open coded variant to print content of struct rtc_time in human readable format. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: Set name of regmap_configJeffy Chen2018-03-171-0/+1
| | | | | | | | We are now allowing to register debugfs without a valid device, and not having a valid name will end up using "dummy*" to create debugfs dir. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* rtc: at91sam9: Fix missing spin_lock_init()Wei Yongjun2016-07-261-0/+1
| | | | | | | | | | The driver allocates the spinlock but not initialize it. Use spin_lock_init() on it to initialize it correctly. This is detected by Coccinelle semantic patch. Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* rtc: at91sam9: remove duplicate assignment of variable mrColin Ian King2016-05-201-1/+1
| | | | | | | | mr is written twice with the same value, remove one of the redundant assignments to mr. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* rtc: at91sam9: remove useless includeAlexandre Belloni2015-09-051-1/+0
| | | | | | | Definitions from linux/platform_data/atmel.h are not used, remove the include. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* rtc: at91sam9: include linux/of.hAlexandre Belloni2015-09-051-0/+1
| | | | | | This driver is using device tree but is not including of.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* rtc: at91sam9: get sclk rate after enabling itAlexandre Belloni2015-09-051-6/+7
| | | | | | | | | | | See help for clk_get_rate(): "obtain the current clock rate (in Hz) for a clock source. This is only valid once the clock source has been enabled." It currently returns the correct value but that may not stay that way. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* rtc: at91sam9: sort headers alphabeticallyAlexandre Belloni2015-09-051-8/+8
| | | | | | | | Sort included headers alphabetically. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* rtc: at91sam9: remove useless checkAlexandre Belloni2015-09-051-2/+1
| | | | | | | | | rtc->sclk necessarily points to a valid clocks at this point. Else the probe would have aborted. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* rtc: at91sam9: properly handle error caseAlexandre Belloni2015-09-051-3/+10
| | | | | | | | | | In case of a probe error, it is possible to abort after issuing clk_prepare_enable(). Ensure the clock is disabled and unprepared in that case. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* rtc: at91sam9: rework wakeup and interrupt handlingBoris BREZILLON2015-03-041-12/+61
| | | | | | | | | | | | | | | | | | The IRQ line used by the RTC device is usually shared with the system timer (PIT) on at91 platforms. Since timers are registering their handlers with IRQF_NO_SUSPEND, we should expect being called in suspended state, and properly wake the system up when this is the case. Set IRQF_COND_SUSPEND flag when registering the IRQ handler to inform irq core that it can safely be called while the system is suspended. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* drivers/rtc/rtc-at91sam9.c: constify struct regmap_configKrzysztof Kozlowski2015-02-141-1/+1
| | | | | | | | | The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds2014-12-151-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
| * rtc: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+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>
* | rtc: at91sam9: use clk API instead of relying on AT91_SLOW_CLOCKBoris BREZILLON2014-11-131-4/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RTT block is using the slow clock which is accessible through the clk API. Use the clk API to retrieve, enable and get the slow clk rate instead of the AT91_SLOW_CLOCK macro (which hardcodes the slow clk rate). Doing this allows us to reference the clk thus preventing the CCF from disabling it during the "disable unused" phase. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | rtc: at91sam9: make use of syscon/regmap to access GPBR registersBoris BREZILLON2014-11-131-9/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GPBR registers are not part of the RTT block and thus should not be defined in the reg property of the rtt node. Use syscon to provide a proper DT representation and reference the GPBR syscon device in a new "atmel,rtt-rtc-time-reg" property which store both the syscon device phandle and the register offset within the GPBR block. When using non DT boards, we won't be able to retrieve the syscon regmap, hence we need to create our own regmap using the memory region defined in the 2nd memory resource assigned to the RTT platform device. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | rtc: at91sam9: add DT supportBoris BREZILLON2014-11-131-0/+9
| | | | | | | | | | | | | | | | | | | | | | Add of_match_table to the existing driver so that rtt nodes defined in at91 DTs can be attached to this driver. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | rtc: at91sam9: replace devm_ioremap by devm_ioremap_resourceBoris BREZILLON2014-11-131-19/+10
| | | | | | | | | | | | | | | | | | | | | | | | Replace devm_ioremap calls by devm_ioremap_resource which already check resource consistency (resource != NULL) and print an error in case of failure. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | rtc: at91sam9: use standard readl/writel functions instead of raw versionsBoris BREZILLON2014-11-131-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Raw versions of writel and writel should not be directly used and should be replaced by their relaxed versions (readl/writel_relaxed), which take endianness conversion into account. In this driver we prefer the standard readl/writel function which add the appropriate memory barrier around the access (the performance penalty is negligible for this kind of application). Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | rtc: at91sam9: remove references to mach specific headersBoris BREZILLON2014-11-131-4/+18
|/ | | | | | | | | | | | | In order to support multi platform kernel drivers should not include machine specific headers. Copy RTT macros in the driver code and remove any machine specific headers. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* rtc: at91sam9: include <mach/hardware.h> explicitlyUwe Kleine-König2013-12-201-1/+1
| | | | | | | | | | | | | | | | The driver needs the symbol AT91_SLOW_CLOCK which is defined in arch/arm/mach-at91/include/mach/hardware.h. This file is included implicitly via linux/module.h -> linux/kmod.h -> linux/gfp.h -> linux/mmzone.h -> linux/memory_hotplug.h -> linux/notifier.h -> linux/srcu.h -> linux/workqueue.h -> linux/timer.h -> linux/ktime.h -> linux/jiffies.h -> linux/timex.h -> mach/timex.h -> mach/hardware.h . So better include it explicitly not only because the last link will go away soon. Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
* rtc: rtc-at91sam9: remove unnecessary platform_set_drvdata()Jingoo Han2013-07-041-14/+5
| | | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d063100 ("device-core: Ensure drvdata = NULL when no driver is bound"). Thus, it is not needed to manually clear the device driver data to NULL. 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>
* rtc: rtc-at91sam9: convert at91_rtc_driver to dev_pm_opsJingoo Han2013-04-301-13/+10
| | | | | | | | | Instead of using legacy suspend/resume methods, using newer dev_pm_ops structure allows better control over power management. 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>
* rtc: rtc-at91sam9: use devm_*() functionsJingoo Han2013-04-301-22/+12
| | | | | | | | Use devm_*() functions to make cleanup paths 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>
* Drivers: rtc: remove __dev* attributes.Greg Kroah-Hartman2013-01-041-3/+3
| | | | | | | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Mike Frysinger <vapier.adi@gmail.com> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* arm: at91: move platfarm_data to include/linux/platform_data/atmel.hJean-Christophe PLAGNIOL-VILLARD2012-11-061-1/+1
| | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
* drivers/rtc/rtc-at91sam9.c: use module_platform_driver() macroDevendra Naga2012-10-051-12/+1
| | | | | | | | | | | | | This driver does seems to do only platform_driver_register in the init function and platform_driver_unregister in the exit function, so replace all this code including the module_init and module_exit with module_platform_driver macro... Signed-off-by: Devendra Naga <develkernel412222@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>
* ARM: at91: fix rtc-at91sam9 irq issue due to sparse irq supportLudovic Desroches2012-08-231-7/+15
| | | | | | | | | AT91_ID_SYS as virq is incorrect because of spare irq support which introduces NR_IRQS_LEGACY offset. It modifies rtc-at91sam9 driver in order to get irq from resources. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-03-281-57/+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 ...
| * ARM: at91/rtc-at91sam9: pass the GPBR to use via resourcesJean-Christophe PLAGNIOL-VILLARD2012-02-231-5/+19
| | | | | | | | | | | | | | | | | | | | | | | | The GPBR registers are used for storing RTC values. The GPBR registers to use are now provided using standard resource entry. The array is filled in SoC specific code. rtc-at91sam9 RTT as RTC driver is modified to retrieve this information. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> [nicolas.ferre@atmel.com: rework resources assignment] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Ryan Mallon <rmallon@gmail.com>
| * ARM: at91:rtc/rtc-at91sam9: ioremap register bankJean-Christophe PLAGNIOL-VILLARD2012-02-231-3/+10
| | | | | | | | | | | | | | | | Instead of computing virtual address with AT91_VA_BASE_SYS, use the appropriate ioremap() call on the driver "memory" resource. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
| * ARM: at91/rtc-at91sam9: each SoC can select the RTT device to useJean-Christophe PLAGNIOL-VILLARD2012-02-231-52/+9
| | | | | | | | | | | | | | | | | | For the RTT as RTC driver rtc-at91sam9, the platform_device structure is filled during SoC initialization. This will allow to convert this RTC driver as a standard platform driver. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | drivers/rtc: remove IRQF_DISABLEDYong Zhang2012-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | ARM: at91:rtc/rtc-at91sam9: ioremap register bankJean-Christophe PLAGNIOL-VILLARD2012-02-131-3/+10
|/ | | | | | | | Instead of computing virtual address with AT91_VA_BASE_SYS, use the appropriate ioremap() call on the driver "memory" resource. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* RTC: Clean out UIE icotl implementationsJohn Stultz2011-03-091-28/+0
| | | | | | | | | | | | | | | With the generic RTC rework, the UIE mode irqs are handled in the generic layer, and only hardware specific ioctls get passed down to the rtc driver layer. So this patch removes the UIE mode ioctl handling in the rtc driver layer, which never get used. CC: Thomas Gleixner <tglx@linutronix.de> CC: Alessandro Zummo <a.zummo@towertech.it> CC: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> CC: rtc-linux@googlegroups.com Signed-off-by: John Stultz <john.stultz@linaro.org>
* RTC: fix typo in drivers/rtc/rtc-at91sam9.cJelle Martijn Kok2011-02-251-1/+1
| | | | | | | | | | The member of the rtc_class_ops struct is called alarm_irq_enable and not alarm_irq_enabled CC: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jelle Martijn Kok <jmkok@youcom.nl> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* RTC: Convert rtc drivers to use the alarm_irq_enable methodJohn Stultz2011-02-031-6/+14
| | | | | | | | | | | | | | | | | | | Some rtc drivers use the ioctl method instead of the alarm_irq_enable method for enabling alarm interupts. With the new virtualized RTC rework, its important for drivers to use the alarm_irq_enable instead. This patch converts the drivers that use the AIE ioctl method to use the alarm_irq_enable method. Other ioctl cmds are left untouched. I have not been able to test or even compile most of these drivers. Any help to make sure this change is correct would be appreciated! CC: Alessandro Zummo <a.zummo@towertech.it> CC: Thomas Gleixner <tglx@linutronix.de> CC: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> Reported-by: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> Tested-by: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> Signed-off-by: John Stultz <john.stultz@linaro.org>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* rtc-at91sam9: Correct size given to memsetJulia Lawall2010-03-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Memset should be given the size of the structure, not the size of the pointer. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; T *x; expression E; @@ memset(x, E, sizeof( + * x)) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2009-03-251-2/+2
| | | | | | | | Cc: a.zummo@towertech.it Cc: rtc-linux@googlegroups.com Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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