litmus-rt.git/include/linux/mfd, branch wip-binary-heap

w1: ds1wm: add a reset recovery parameter

2011-07-09T04:14:44+00:00

This fixes a regression in 3.0 reported by Paul Parsons regarding the
removal of the msleep(1) in the ds1wm_reset() function:

: The linux-3.0-rc4 DS1WM 1-wire driver is logging "bus error, retrying"
: error messages on an HP iPAQ hx4700 PDA (XScale-PXA270):
:
: 
: Driver for 1-wire Dallas network protocol.
: DS1WM w1 busmaster driver - (c) 2004 Szabolcs Gyurko
: 1-Wire driver for the DS2760 battery monitor  chip  - (c) 2004-2005, Szabolcs Gyurko
: ds1wm ds1wm: pass: 1 bus error, retrying
: ds1wm ds1wm: pass: 2 bus error, retrying
: ds1wm ds1wm: pass: 3 bus error, retrying
: ds1wm ds1wm: pass: 4 bus error, retrying
: ds1wm ds1wm: pass: 5 bus error, retrying
: ...
:
: The visible result is that the battery charging LED is erratic; sometimes
: it works, mostly it doesn't.
:
: The linux-2.6.39 DS1WM 1-wire driver worked OK.  I haven't tried 3.0-rc1,
: 3.0-rc2, or 3.0-rc3.

This sleep should not be required on normal circuitry provided the
pull-ups on the bus are correctly adapted to the slaves.  Unfortunately,
this is not always the case.  The sleep is restored but as a parameter to
the probe function in the pdata.

[akpm@linux-foundation.org: coding-style fixes]
Reported-by: Paul Parsons 
Tested-by: Paul Parsons 
Signed-off-by: Jean-François Dagenais 
Cc: Evgeniy Polyakov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

TPS65911: Comparator: Add comparator driver

2011-05-27T09:49:29+00:00

This driver adds functionality to the tps65911 chip driver.

Two of the comparators are configurable by software and measures
VCCS voltage to detect high or low voltage scenarios.

Signed-off-by: Jorge Eduardo Candelaria 
Acked-by: Samuel Ortiz 
Signed-off-by: Liam Girdwood

TPS65911: Add support for added GPIO lines

2011-05-27T09:49:29+00:00

GPIO 1 to 8 are added for TPS65911 chip version. The gpio driver
now handles more than one gpio lines. Subsequent versions of the
chip family can add new GPIO lines with minimal driver changes.

Signed-off-by: Jorge Eduardo Candelaria 
Acked-by: Grant Likely 
Signed-off-by: Liam Girdwood

TPS65911: Add new irq definitions

2011-05-27T09:49:10+00:00

TPS65911 adds new interrupt sources, as well as two new registers
to handle them, one for interrupt status and one for interrupt
masking. The added irqs are:

-VMBCH2 - Low and High threshold
-GPIO1-8 - Rising and falling edge detection
-WTCHDG - Watchdog interrupt
-PWRDN	- PWRDN reset interrupt

The code should handle these new registers only when the chip
version is TPS65911.

Signed-off-by: Jorge Eduardo Candelaria 
Acked-by: Samuel Ortiz 
Signed-off-by: Liam Girdwood

regulator: tps65911: Add new chip version

2011-05-27T09:49:10+00:00

The tps65911 chip introduces new features, including changes in
the regulator module.

- VDD1 and VDD2 remain unchanged.
- VDD3 is now named VDDCTRL and has a wider voltage range.
- LDOs are now named LDO1...8 and voltage ranges are sequential,
  making LDOs easier to handle.

Signed-off-by: Jorge Eduardo Candelaria 
Acked-by: Mark Brown 
Signed-off-by: Liam Girdwood

MFD: TPS65910: Add support for TPS65911 device

2011-05-27T09:49:10+00:00

The TPS65911 is the next generation of the TPS65910 family of
PMIC chips. It adds a few features:

- Watchdog Timer
- PWM & LED generators
- Comparators for system control status

It also adds a set of Interrupts and GPIOs, among other things.

The driver exports a function to identify between different
versions of the tps65910 family, allowing other modules to
identify the capabilities of the current chip.

Signed-off-by: Jorge Eduardo Candelaria 
Acked-by: Samuel Ortiz 
Signed-off-by: Liam Girdwood

regulator: Remove MAX8997_REG_BUCK1DVS/MAX8997_REG_BUCK2DVS/MAX8997_REG_BUCK5DVS macros

2011-05-27T09:49:10+00:00

In current implementation, the original macro implementation assumes the caller
pass the parameter starting from 1 (to match the register names in datasheet).
Thus we have unneeded plus one then minus one operations
when using MAX8997_REG_BUCK1DVS/MAX8997_REG_BUCK2DVS/MAX8997_REG_BUCK5DVS macros.

This patch removes these macros to avoid unneeded plus one then minus one operations
without reducing readability.

Signed-off-by: Axel Lin 
Acked-by: Kyungmin Park 
Acked-by: MyungJoo Ham 
Acked-by: Mark Brown 
Signed-off-by: Liam Girdwood

TPS65910: Add tps65910 regulator driver

2011-05-27T09:49:08+00:00

The regulator module consists of 3 DCDCs and 8 LDOs. The output
voltages are configurable and are meant to supply power to the
main processor and other components

Signed-off-by: Graeme Gregory 
Signed-off-by: Jorge Eduardo Candelaria 
Acked-by: Mark Brown 
Signed-off-by: Liam Girdwood

TPS65910: IRQ: Add interrupt controller

2011-05-27T09:48:43+00:00

This module controls the interrupt handling for the tps chip. The
interrupt sources are the following:

- GPIO falling/rising edge detection
- Battery voltage below/above threshold
- PWRON signal
- PWRHOLD signal
- Temperature detection
- RTC alarm and periodic event

Signed-off-by: Graeme Gregory 
Signed-off-by: Jorge Eduardo Candelaria 
Reviewed-by: Mark Brown 
Acked-by: Samuel Ortiz 
Signed-off-by: Liam Girdwood

TPS65910: GPIO: Add GPIO driver

2011-05-27T09:48:23+00:00

TPS65910 has one configurable GPIO that can be used for several
purposes. Subsequent versions of the TPS chip support more than
one GPIO.

Signed-off-by: Graeme Gregory 
Signed-off-by: Jorge Eduardo Candelaria 
Acked-by: Grant Likely 
Signed-off-by: Liam Girdwood