Commit 0b2f6228 authored by Arnaud Ebalard's avatar Arnaud Ebalard Committed by Linus Torvalds
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rtc: add support for Abracon AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip 



This patch adds support for Abracon AB-RTCMC-32.768kHz-B5ZE-S3
RTC/Calendar module w/ I2C interface.

This support includes RTC time reading and setting, Alarm (1 minute
accuracy) reading and setting, and battery low detection.  The device also
supports frequency adjustment and two timers but those features are
currently not implemented in this driver.  Due to alarm accuracy
limitation (and current lack of timer support in the driver), UIE mode is
not supported.

Signed-off-by: default avatarArnaud Ebalard <arno@natisbad.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Peter Huewe <peter.huewe@infineon.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Landley <rob@landley.net>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 446810f2

Documentation/devicetree/bindings/i2c/trivial-devices.txt

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@@ -9,6 +9,7 @@ document for it just like any other devices. 


Compatible		Vendor / Chip

==========		=============

abracon,abb5zes3		AB-RTCMC-32.768kHz-B5ZE-S3: Real Time Clock/Calendar Module with I2C Interface

ad,ad7414		SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature Pin

ad,adm9240		ADM9240:  Complete System Hardware Monitor for uProcessor-Based Systems

adi,adt7461		+/-1C TDM Extended Temp Range I.C

drivers/rtc/Kconfig

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@@ -153,6 +153,17 @@ config RTC_DRV_88PM80X 
	  This driver can also be built as a module. If so, the module

	  will be called rtc-88pm80x.



config RTC_DRV_ABB5ZES3

       depends on I2C

       select REGMAP_I2C

       tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"

       help

	  If you say yes here you get support for the Abracon

	  AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.



	  This driver can also be built as a module. If so, the module

	  will be called rtc-ab-b5ze-s3.



config RTC_DRV_AS3722

	tristate "ams AS3722 RTC driver"

	depends on MFD_AS3722

drivers/rtc/Makefile

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@@ -24,6 +24,7 @@ obj-$(CONFIG_RTC_DRV_88PM860X) += rtc-88pm860x.o 
obj-$(CONFIG_RTC_DRV_88PM80X)	+= rtc-88pm80x.o

obj-$(CONFIG_RTC_DRV_AB3100)	+= rtc-ab3100.o

obj-$(CONFIG_RTC_DRV_AB8500)	+= rtc-ab8500.o

obj-$(CONFIG_RTC_DRV_ABB5ZES3)	+= rtc-ab-b5ze-s3.o

obj-$(CONFIG_RTC_DRV_AS3722)	+= rtc-as3722.o

obj-$(CONFIG_RTC_DRV_AT32AP700X)+= rtc-at32ap700x.o

obj-$(CONFIG_RTC_DRV_AT91RM9200)+= rtc-at91rm9200.o

drivers/rtc/rtc-ab-b5ze-s3.c

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