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linux/drivers/rtc/rtc-max8998.c

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rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: max8998: Add irq domain support This patch adds irq domain support for max8998 interrupts. To keep both non-DT and DT worlds happy, simple domain is used, which is linear when no explicit IRQ base is specified and legacy, with static mapping, otherwise. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-24 14:39:52 +02:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
Drivers: rtc: remove __dev* attributes. 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>
2012-12-21 13:09:38 -08:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: max8998: Add support for Device Tree This patch adds Device Tree support to max8998 driver. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Mark Brown <broonie@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-25 16:08:10 +02:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
rtc: rtc-max8998: use devm_*() functions 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>
2013-04-29 16:20:43 -07:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
rtc: max8998: 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: Wolfram Sang <w.sang@pengutronix.de> CC: Alessandro Zummo <a.zummo@towertech.it> CC: Thomas Gleixner <tglx@linutronix.de> CC: rtc-linux@googlegroups.com Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-06 17:27:07 -07:00
rtc: rtc-max8998: use devm_*() functions 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>
2013-04-29 16:20:43 -07:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
rtc: rtc-max8998: 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 15:06:28 -07:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: max8998: Add irq domain support This patch adds irq domain support for max8998 interrupts. To keep both non-DT and DT worlds happy, simple domain is used, which is linear when no explicit IRQ base is specified and legacy, with static mapping, otherwise. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-24 14:39:52 +02:00
rtc: rtc-max8998: use devm_*() functions 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>
2013-04-29 16:20:43 -07:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: max8998: Add irq domain support This patch adds irq domain support for max8998 interrupts. To keep both non-DT and DT worlds happy, simple domain is used, which is linear when no explicit IRQ base is specified and legacy, with static mapping, otherwise. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-24 14:39:52 +02:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
drivers/rtc/rtc-max8998.c: check for pdata presence before dereferencing Currently the driver can crash with a NULL pointer dereference if no pdata is provided, despite of successful registration of the MFD part. This patch fixes the problem by adding a NULL check before dereferencing the pdata pointer. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-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>
2013-05-24 15:55:35 -07:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: ds1672, max6900, max8998: Add MODULE_DEVICE_TABLE The device table is required to load modules based on modaliases. After adding MODULE_DEVICE_TABLE, below entries will be added to modules.alias: alias i2c:ds1672 rtc_ds1672 alias i2c:max6900 rtc_max6900 alias platform:lp3974-rtc rtc_max8998 alias platform:max8998-rtc rtc_max8998 Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Dale Farnsworth <dale@farnsworth.org> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2011-04-18 20:16:57 +08:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
mfd: Support LP3974 RTC The first releases of LP3974 have a large delay in RTC registers, which requires 2 seconds of delay after writing to a rtc register (recommended by National Semiconductor's engineers) before reading it. If "rtc_delay" field of the platform data is true, the rtc driver assumes that such delays are required. Although we have not seen LP3974s without requiring such delays, we assume that such LP3974s will be released soon (or they have done so already) and they are supported by "lp3974" without setting "rtc_delay" at the platform data. This patch adds delays with msleep when writing values to RTC registers if the platform data has rtc_delay set. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-04 14:17:39 +09:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00
rtc: convert drivers/rtc/* to use module_platform_driver() This patch converts the drivers in drivers/rtc/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Ben Dooks <ben@simtec.co.uk> Cc: John Stultz <john.stultz@linaro.org> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-10 15:10:48 -08:00
rtc: Add MAX8998 rtc driver This adds support for the RTC provided by the Maxim 8998 chip. This driver was tested on a GONI board by using the rtc-test application from the Documentation/rtc.txt. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-06 11:28:08 +09:00