diff options
| author | Milo Kim <Milo.Kim@ti.com> | 2012-09-19 18:53:33 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-09-23 20:51:34 +0200 |
| commit | eea6b7cc53aaecf868e1643058159807c744e04e (patch) | |
| tree | 1922328c8edb85f2c106075c966baa07f15ea831 /include/linux/mfd/lp8788-isink.h | |
| parent | 804971ec3793d30f40c1a74775dd3fe89deb461a (diff) | |
| download | blackbird-op-linux-eea6b7cc53aaecf868e1643058159807c744e04e.tar.gz blackbird-op-linux-eea6b7cc53aaecf868e1643058159807c744e04e.zip | |
mfd: Add lp8788 mfd driver
TI LP8788 PMU provides regulators, battery charger, ADC,
RTC, backlight driver and current sinks.
This MFD patch supports the I2C communication using the regmap,
the interrupt handling using the linear IRQ domain and
configurable platform data structures for each driver module.
(Driver Architecture)
< mfd devices >
LP8788 HW .......... mfd .......... regulator drivers
I2C power supply driver
IRQs iio adc driver
rtc driver
backlight driver
current sink drivers
o regulators : LDOs and BUCKs
o power supply : Battery charger
o iio adc : Battery voltage/temperature
o rtc : RTC and alarm
o backlight
o current sink : LED and vibrator
All MFD device modules are registered by LP8788 MFD core driver.
For sharing information such like the virtual IRQ number,
MFD core driver uses the resource structure.
Then each module can retrieve the specific IRQ number and detect it
in the IRQ thread.
Configurable platform data is handled in each driver module.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/linux/mfd/lp8788-isink.h')
| -rw-r--r-- | include/linux/mfd/lp8788-isink.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/mfd/lp8788-isink.h b/include/linux/mfd/lp8788-isink.h new file mode 100644 index 000000000000..f38262d21ff1 --- /dev/null +++ b/include/linux/mfd/lp8788-isink.h @@ -0,0 +1,52 @@ +/* + * TI LP8788 MFD - common definitions for current sinks + * + * Copyright 2012 Texas Instruments + * + * Author: Milo(Woogyom) Kim <milo.kim@ti.com> + * + * 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. + * + */ + +#ifndef __ISINK_LP8788_H__ +#define __ISINK_LP8788_H__ + +/* register address */ +#define LP8788_ISINK_CTRL 0x99 +#define LP8788_ISINK12_IOUT 0x9A +#define LP8788_ISINK3_IOUT 0x9B +#define LP8788_ISINK1_PWM 0x9C +#define LP8788_ISINK2_PWM 0x9D +#define LP8788_ISINK3_PWM 0x9E + +/* mask bits */ +#define LP8788_ISINK1_IOUT_M 0x0F /* Addr 9Ah */ +#define LP8788_ISINK2_IOUT_M 0xF0 +#define LP8788_ISINK3_IOUT_M 0x0F /* Addr 9Bh */ + +/* 6 bits used for PWM code : Addr 9C ~ 9Eh */ +#define LP8788_ISINK_MAX_PWM 63 +#define LP8788_ISINK_SCALE_OFFSET 3 + +static const u8 lp8788_iout_addr[] = { + LP8788_ISINK12_IOUT, + LP8788_ISINK12_IOUT, + LP8788_ISINK3_IOUT, +}; + +static const u8 lp8788_iout_mask[] = { + LP8788_ISINK1_IOUT_M, + LP8788_ISINK2_IOUT_M, + LP8788_ISINK3_IOUT_M, +}; + +static const u8 lp8788_pwm_addr[] = { + LP8788_ISINK1_PWM, + LP8788_ISINK2_PWM, + LP8788_ISINK3_PWM, +}; + +#endif |
