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rtc: rc5t583: add ricoh rc5t583 RTC driver

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Add an RTC driver for the RTC device on Ricoh MFD Rc5t583.  Ricoh RTC has
3 types of alarms.  The current patch adds support for the Y-Alarm of
RC5t583 RTC.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Venu Byravarasu
2012-10-04 17:14:04 -07:00
committed by Linus Torvalds
parent a16e8393ac
commit 90829c089e
4 changed files with 364 additions and 0 deletions
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22
include/linux/mfd/rc5t583.h
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@@ -146,6 +146,28 @@
#define RC5T583_GPIO_MON_IOIN 0xAB
#define RC5T583_GPIO_GPOFUNC 0xAC
/* RTC registers */
#define RC5T583_RTC_SEC 0xE0
#define RC5T583_RTC_MIN 0xE1
#define RC5T583_RTC_HOUR 0xE2
#define RC5T583_RTC_WDAY 0xE3
#define RC5T583_RTC_DAY 0xE4
#define RC5T583_RTC_MONTH 0xE5
#define RC5T583_RTC_YEAR 0xE6
#define RC5T583_RTC_ADJ 0xE7
#define RC5T583_RTC_AW_MIN 0xE8
#define RC5T583_RTC_AW_HOUR 0xE9
#define RC5T583_RTC_AW_WEEK 0xEA
#define RC5T583_RTC_AD_MIN 0xEB
#define RC5T583_RTC_AD_HOUR 0xEC
#define RC5T583_RTC_CTL1 0xED
#define RC5T583_RTC_CTL2 0xEE
#define RC5T583_RTC_AY_MIN 0xF0
#define RC5T583_RTC_AY_HOUR 0xF1
#define RC5T583_RTC_AY_DAY 0xF2
#define RC5T583_RTC_AY_MONTH 0xF3
#define RC5T583_RTC_AY_YEAR 0xF4
/* RICOH_RC5T583 IRQ definitions */
enum {
RC5T583_IRQ_ONKEY,