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rtc: tps65910: Add RTC calibration support

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Texas Instrument's TPS65910 has support for compensating RTC crystal
inaccuracies. When enabled every hour RTC counter value will be compensated
with two's complement value.

Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Vesa Jääskeläinen
2016-12-23 13:15:58 +02:00
committed by Alexandre Belloni
parent 666b5d1e9f
commit aecb57da7a
2 changed files with 144 additions and 0 deletions
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include/linux/mfd/tps65910.h
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@@ -134,6 +134,7 @@
/* RTC_CTRL_REG bitfields */
#define TPS65910_RTC_CTRL_STOP_RTC 0x01 /*0=stop, 1=run */
#define TPS65910_RTC_CTRL_AUTO_COMP 0x04
#define TPS65910_RTC_CTRL_GET_TIME 0x40
/* RTC_STATUS_REG bitfields */