[PATCH] Add max6902 RTC support
Add support for the MAX6902 SPI RTC chip. Tested on a pxa2xx cpu.
The compulab code comes from the kernel patch the produce for their
cn-x255 board. (inside a zip file on the
http://www.compulab.co.il/x255/html/x255-developer.htm)
The original file (drivers/char/max6902.c) was GPL, which is of course
an appropriate licence:
/*
* max6902.c
*
* Driver for MAX6902 RTC
*
* Copyright (C) 2004 Compulab Ltd.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*
*/
For reference, you can get the original file here:
http://raph.people.8d.com/misc/max6902.c
[akpm@osdl.org: cleanups]
Signed-off-by: Raphael Assenat <raph@raphnet.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 37ee69f..94746cf 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -217,4 +217,14 @@
This driver can also be built as a module. If so, the module
will be called rtc-test.
+config RTC_DRV_MAX6902
+ tristate "Maxim 6902"
+ depends on RTC_CLASS && SPI
+ help
+ If you say yes here you will get support for the
+ Maxim MAX6902 spi RTC chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-max6902.
+
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