diff options
| author |   Wolfram Sang <w.sang@pengutronix.de> | 2012-05-29 15:07:38 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-29 16:22:33 -0700 |
| commit | eb86c3064b3c53837fdfea17df1483d825919894 (patch) | |
| tree | 0d408fe43f43248477bb521fdd5b6856878199b0 /include/linux/rtc | |
| parent | rtc: ds1307: remove superfluous initialization (diff) | |
| download | wireguard-linux-eb86c3064b3c53837fdfea17df1483d825919894.tar.xz wireguard-linux-eb86c3064b3c53837fdfea17df1483d825919894.zip | |
rtc: ds1307: add trickle charger support
Some DS13XX devices have "trickle chargers". Its configuration register
is at different locations, the setup is the same, though. Since the
configuration is board specific, introduce a platform_data to this driver.
Tested with a DS1339 on a custom board.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Alessandro Zummo <alessandro.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/rtc')
| -rw-r--r-- | include/linux/rtc/ds1307.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/rtc/ds1307.h b/include/linux/rtc/ds1307.h new file mode 100644 index 000000000000..291b1c490367 --- /dev/null +++ b/include/linux/rtc/ds1307.h @@ -0,0 +1,22 @@ +/* + * ds1307.h - platform_data for the ds1307 (and variants) rtc driver + * (C) Copyright 2012 by Wolfram Sang, Pengutronix e.K. + * same license as the driver + */ + +#ifndef _LINUX_DS1307_H +#define _LINUX_DS1307_H + +#include <linux/types.h> + +#define DS1307_TRICKLE_CHARGER_250_OHM 0x01 +#define DS1307_TRICKLE_CHARGER_2K_OHM 0x02 +#define DS1307_TRICKLE_CHARGER_4K_OHM 0x03 +#define DS1307_TRICKLE_CHARGER_NO_DIODE 0x04 +#define DS1307_TRICKLE_CHARGER_DIODE 0x08 + +struct ds1307_platform_data { + u8 trickle_charger_setup; +}; + +#endif /* _LINUX_DS1307_H */ |