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rtc: tps65910: add RTC driver for TPS65910 PMIC RTC

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TPS65910 PMIC is a MFD with RTC as one of the device.  Adding RTC driver
for supporting RTC device present inside TPS65910 PMIC.

Only support for RTC alarm is implemented as part of this patch.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.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 17:13:55 -07:00
committed by Linus Torvalds
parent 477d30d787
commit 0e783980b8
4 changed files with 373 additions and 0 deletions
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10
include/linux/mfd/tps65910.h
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@@ -132,6 +132,16 @@
*
*/
/* RTC_CTRL_REG bitfields */
#define TPS65910_RTC_CTRL_STOP_RTC 0x01 /*0=stop, 1=run */
#define TPS65910_RTC_CTRL_GET_TIME 0x40
/* RTC_STATUS_REG bitfields */
#define TPS65910_RTC_STATUS_ALARM 0x40
/* RTC_INTERRUPTS_REG bitfields */
#define TPS65910_RTC_INTERRUPTS_EVERY 0x03
#define TPS65910_RTC_INTERRUPTS_IT_ALARM 0x08
/*Register BCK1 (0x80) register.RegisterDescription */
#define BCK1_BCKUP_MASK 0xFF