linux-toradex.git/drivers/w1, branch v3.1.2

drivers/power/ds2780_battery.c: add a nolock function to w1 interface

2011-11-11T17:43:49+00:00

commit 9fe678fa2feb4aaac0b4220de63e1b7f8ccebae6 upstream.

Adds a nolock function to the w1 interface to avoid locking the
mutex if needed.

Signed-off-by: Clifton Barnes 
Cc: Evgeniy Polyakov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

MAINTAINERS: Evgeniy has moved

2011-08-25T23:25:33+00:00

Signed-off-by: Evgeniy Polyakov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

w1: fix for loop in w1_f29_remove_slave()

2011-08-25T23:25:33+00:00

The for loop was looking for i <= 0 instead of i >= 0 so this function
never did anything.  Also we started with i = NB_SYSFS_BIN_FILES instead
of "NB_SYSFS_BIN_FILES - 1" which is an off by one bug.

Reported-by: Bojan Prtvar 
Signed-off-by: Dan Carpenter 
Acked-by: Jean-Franois Dagenais 
Cc: Evgeniy Polyakov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

atomic: use

2011-07-26T23:49:47+00:00

This allows us to move duplicated code in 
(atomic_inc_not_zero() for now) to 

Signed-off-by: Arun Sharma 
Reviewed-by: Eric Dumazet 
Cc: Ingo Molnar 
Cc: David Miller 
Cc: Eric Dumazet 
Acked-by: Mike Frysinger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/w1/slaves/w1_therm.c: add support for DS28EA00

2011-07-26T23:49:45+00:00

Signed-off-by: Christian Glindkamp 
Cc: Evgeniy Polyakov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

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

w1: W1_MASTER_DS1WM should depend on GENERIC_HARDIRQS

2011-06-16T03:04:00+00:00

On m68k (which doesn't support generic hardirqs yet):

  drivers/w1/masters/ds1wm.c: In function `ds1wm_probe':
  drivers/w1/masters/ds1wm.c: error: implicit declaration of function `irq_set_irq_type'

Signed-off-by: Geert Uytterhoeven 
Cc: Evgeniy Polyakov 
Cc: Jean-Franois Dagenais 
Cc: Matt Reimer 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

w1: add Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC support

2011-05-27T00:12:38+00:00

Add support for the Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC.

It was suggested to combine this functionality with the current ds2782
driver.  Unfortunately, I'm unable to commit the time to refactoring this
driver to that extent and I don't have a platform with the ds2782 part to
validate that there are no regression issues by adding this functionality.

[akpm@linux-foundation.org: use min_t()]
Signed-off-by: Clifton Barnes 
Tested-by: Haojian Zhuang 
Cc: Evgeniy Polyakov 
Cc: Ryan Mallon 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

w1: have netlink search update kernel list

2011-05-27T00:12:38+00:00

Reorganize so the netlink connector one wire search command will update
the kernel list of detected slave devices.  Otherwise, a newly detected
device is unusable because unless it's in the kernel list of known devices
any commands will result in ENODEV status.

Signed-off-by: David Fries 
Cc: Evgeniy Polyakov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

w1: complete the 1-wire (w1) ds1wm driver search algorithm

2011-05-27T00:12:38+00:00

This adds multi-slave support of the w1 bus for the ds1wm Synthesizable
1-Wire Bus Master.  Also many fixes and tweaks based on the rev3 of the
datasheet http://datasheets.maxim-ic.com/en/ds/DS1WM.pdf

Signed-off-by: Jean-François Dagenais 
Cc: Evgeniy Polyakov 
Cc: Szabolcs Gyurko 
Cc: Matt Reimer 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds