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linux/drivers/rtc/rtc-davinci.c

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RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
davinci: update gfp/slab.h includes Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2010-03-30 02:52:36 +09:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
drivers/rtc/rtc-davinci.c: fix whitespace warning Silences the following warning: WARNING: please, no space before tabs 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>
2013-07-03 15:05:46 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: use devm_ioremap_resource() Use devm_ioremap_resource() in order to make the code simpler, and remove redundant return value check of platform_get_resource() because the value is checked by devm_ioremap_resource(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Kevin Hilman <khilman@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03 14:49:48 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: use devm_kzalloc() Use devm_kzalloc() and remove the error path free and the unload free as devm functions take care of freeing resources. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 16:02:41 -08:00
rtc: rtc-davinci: remove unnecessary OOM messages The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. 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>
2014-04-03 14:49:39 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: use devm_kzalloc() Use devm_kzalloc() and remove the error path free and the unload free as devm functions take care of freeing resources. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 16:02:41 -08:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: use devm_ioremap_resource() Use devm_ioremap_resource() in order to make the code simpler, and remove redundant return value check of platform_get_resource() because the value is checked by devm_ioremap_resource(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Kevin Hilman <khilman@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03 14:49:48 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: davinci: Initialize drvdata before registering device Commit f44f7f96a20 ("RTC: Initialize kernel state from RTC") uncovered an issue in a number of RTC drivers, where the drivers call rtc_device_register before initializing the device or platform drvdata. This frequently results in null pointer dereferences when the rtc_device_register immediately makes use of the rtc device, calling rtc_read_alarm. The solution is to ensure the drvdata is initialized prior to registering the rtc device. CC: Alessandro Zummo <a.zummo@towertech.it> CC: Thomas Gleixner <tglx@linutronix.de> CC: rtc-linux@googlegroups.com Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> [fixed up commit log -jstultz] Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-05 11:46:14 +02:00
rtc: rtc-davinci: use devm_rtc_device_register() devm_rtc_device_register() is device managed and makes 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>
2013-04-29 16:18:58 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: return correct error code if rtc_device_register() fails rtc_device_register() returns a pointer containing error code in case of error. Use that in the error return. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 16:02:39 -08:00
rtc: rtc-davinci: remove unnecessary platform_set_drvdata() 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>
2013-07-03 15:06:19 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: use devm_*() functions Use devm_*() functions 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>
2013-02-21 16:45:45 -08:00
drivers/rtc: remove IRQF_DISABLED 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>
2012-03-23 15:02:34 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: remove unnecessary platform_set_drvdata() 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>
2013-07-03 15:06:19 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: add __exit annotation When platform_driver_probe() is used, bind/unbind via sysfs is disabled. Thus, __init/__exit annotations can be added to probe()/remove(). 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>
2013-04-29 16:18:22 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: add __exit annotation When platform_driver_probe() is used, bind/unbind via sysfs is disabled. Thus, __init/__exit annotations can be added to probe()/remove(). 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>
2013-04-29 16:18:22 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00
rtc: rtc-davinci: use module_platform_driver_probe() Use module_platform_driver_probe() 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>
2013-04-29 16:18:38 -07:00
RTC: DaVinci RTC driver This driver features: * Alarm support. * Periodic interrupt by using a timer include into the RTC module. * The update interrupt is not supported by this RTC module. This driver was tested on a DM365 EVM by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it>
2009-11-05 08:51:34 -06:00