linux-toradex.git/drivers/w1, branch tegra-9.12.13 Linux kernel for Apalis and Colibri modules tegra-w1: Add support read_bit, write_bit and touch_bit routines 2010-02-25T22:35:57+00:00 Hoang Pham hopham@nvidia.com 2010-02-25T22:35:57+00:00 3c5f25f31edf3ae05052d69db18417d1908ac171 Change-Id: I313de2e32b1dd64470ce7eb9f21a60c590e689c6 
Change-Id: I313de2e32b1dd64470ce7eb9f21a60c590e689c6
tegra w1: Fix a lot of reset bus errors if no 1-wire device exists in the system 2010-02-18T23:49:42+00:00 Hoang Pham hopham@nvidia.com 2010-02-18T23:49:42+00:00 dd8a5e9c22b8fb3231c6713db56dd248dc114477 Change-Id: Idb7f83fcfee31ad6accbbabb80bd98477ceca3f2 
Change-Id: Idb7f83fcfee31ad6accbbabb80bd98477ceca3f2
tegra: Add 1-wire bus master driver for Tegra SOCs 2010-02-05T04:32:12+00:00 Hoang Pham HoPham@nvidia.com 2010-02-05T04:32:12+00:00 394c6535f18005ca80336b1b7128b488243e0381 Fix logic pinmux config select Change-Id: I49f8c399d57455c85ed373a66db6696cdd997bec 
Fix logic pinmux config select
Change-Id: I49f8c399d57455c85ed373a66db6696cdd997bec
drivers/w1/masters/w1-gpio.c: fix read_bit() 2009-03-12T23:20:23+00:00 Daniel Mack daniel@caiaq.de 2009-03-12T21:31:25+00:00 8d0df7a3d1ecbaf5d5602a59055c8ca993855bed W1 master implementations are expected to return 0 or 1 from their read_bit() function. However, not all platforms do return these values from gpio_get_value() - namely PXAs won't. Hence the w1 gpio-master needs to break the result down to 0 or 1 itself. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Ville Syrjala <syrjala@sci.fi> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
W1 master implementations are expected to return 0 or 1 from their
read_bit() function.  However, not all platforms do return these values
from gpio_get_value() - namely PXAs won't.  Hence the w1 gpio-master needs
to break the result down to 0 or 1 itself.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Ville Syrjala <syrjala@sci.fi>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
w1: add missing Kconfig/Makefile entries for DS2431 slave driver 2009-02-28T00:26:21+00:00 Herton Ronaldo Krzesinski herton@mandriva.com.br 2009-02-27T22:03:00+00:00 8ca2f156b06bdcbfd1ab543355279246d05e2499 Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
w1_ds2433: clear the validcrc flag after a write 2009-02-28T00:26:20+00:00 Ben Gardner gardner.ben@gmail.com 2009-02-27T22:02:58+00:00 dca17146f4b72b8966016c406d94ad3e48289b79 The w1_ds2433 driver does not read from the hardware if the CRC was valid on the last read. The validcrc flag should be cleared after a write so that the new value can be read. Signed-off-by: Ben Gardner <gardner.ben@gmail.com> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
The w1_ds2433 driver does not read from the hardware if the CRC was valid
on the last read.  The validcrc flag should be cleared after a write so
that the new value can be read.

Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
w1: w1 temp calculation overflow fix 2009-02-11T22:25:37+00:00 Ian Dall ian@beware.dropbear.id.au 2009-02-11T21:04:46+00:00 507e2fbaaacb6f164b4125b87c5002f95143174b Addresses http://bugzilla.kernel.org/show_bug.cgi?id=12646 When the temperature exceeds 32767 milli-degrees the temperature overflows to -32768 millidegrees. These are bothe well within the -55 - +125 degree range for the sensor. Fix overflow in left-shift of a u8. Signed-off-by: Ian Dall <ian@beware.dropbear.id.au> Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=12646

When the temperature exceeds 32767 milli-degrees the temperature overflows
to -32768 millidegrees.  These are bothe well within the -55 - +125 degree
range for the sensor.

Fix overflow in left-shift of a u8.

Signed-off-by: Ian Dall <ian@beware.dropbear.id.au>
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
w1: send status messages after command processing 2009-01-08T16:31:14+00:00 Evgeniy Polyakov zbr@ioremap.net 2009-01-08T02:09:05+00:00 4037014e3fb71e998189374e19ca141c59d15323 Send completion status of the commands to the userspace. Message and protocol are described in the documentation. Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Paul Alfille <paul.alfille@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Send completion status of the commands to the userspace.  Message and
protocol are described in the documentation.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
w1: added w1 reset command 2009-01-08T16:31:14+00:00 Evgeniy Polyakov zbr@ioremap.net 2009-01-08T02:09:04+00:00 f89735c4e281e8642907b38640c076ae5048f3a6 Command which allows to reset the bus. Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Paul Alfille <paul.alfille@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Command which allows to reset the bus.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
w1: move w1 commands from defines to enum 2009-01-08T16:31:13+00:00 Evgeniy Polyakov zbr@ioremap.net 2009-01-08T02:09:03+00:00 325a06fb13614fd4e5ea36996c0ce043752a93a0 Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Paul Alfille <paul.alfille@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>