04 Jul, 2013
1 commit
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Power-up timing
The DS2408 is sensitive to the power-on slew rate and can inadvertently
power up with a test mode feature enabled. When this occurs, the P0 port
does not respond to the Channel Access Write command. For most reliable
operation, it is recommended to disable the test mode after every power-on
reset using the Disable Test Mode sequence shown below. The 64-bit ROM
code must be transmitted in the same bit sequence as with the Match ROM
command, i.e., least significant bit first. This precaution is
recommended in parasite power mode (VCC pin connected to GND) as well as
with VCC power.Disable Test Mode:
RST,PD,96h,,3Ch,RST,PD[akpm@linux-foundation.org: don't use kerenldoc token to introduce a non-kerneldoc comment, tweak whitespace]
Signed-off-by: Jean-Francois Dagenais
Cc: Evgeniy Polyakov
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Jun, 2013
1 commit
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This patch allows the 1-wire bus to autoload the corresponding module
for each slave being attached.
This works similar to bluetooth protocols.Signed-off-by: Alexander Stein
Signed-off-by: Greg Kroah-Hartman
27 May, 2013
1 commit
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We want the changes in here.
Signed-off-by: Greg Kroah-Hartman
22 May, 2013
1 commit
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Since commit ab78029 (drivers/pinctrl: grab default handles from device core)
we can rely on device core for handling pinctrl, so remove
devm_pinctrl_get_select_default() from the driver.Signed-off-by: Fabio Estevam
Signed-off-by: Greg Kroah-Hartman
18 May, 2013
1 commit
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devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.Signed-off-by: Wolfram Sang
10 May, 2013
1 commit
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Pull removal of GENERIC_GPIO from Grant Likely:
"GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any
valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
is possible to do so which has been causing confusion and breakage.
This branch does the work to completely eliminate GENERIC_GPIO."* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
gpio: update gpio Chinese documentation
Remove GENERIC_GPIO config option
Convert selectors of GENERIC_GPIO to GPIOLIB
blackfin: force use of gpiolib
m68k: coldfire: use gpiolib
mips: pnx833x: remove requirement for GENERIC_GPIO
openrisc: default GENERIC_GPIO to false
avr32: default GENERIC_GPIO to false
xtensa: remove explicit selection of GENERIC_GPIO
sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
powerpc: remove redundant GENERIC_GPIO selection
unicore32: default GENERIC_GPIO to false
unicore32: remove unneeded select GENERIC_GPIO
arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
arm: remove redundant GENERIC_GPIO selection
mips: alchemy: require gpiolib
mips: txx9: change GENERIC_GPIO to GPIOLIB
mips: loongson: use GPIO driver on CONFIG_GPIOLIB
mips: remove redundant GENERIC_GPIO select
01 May, 2013
4 commits
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Use platform_device_put() instead of platform_device_unregister() if
platform_device_add() fail, and platform_device_del() should be used in
the error handling case after platform_device_add() success.Signed-off-by: Wei Yongjun
Cc: Evgeniy Polyakov
Cc: Greg KH
Cc: Neil Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use platform_device_put() instead of platform_device_unregister() if
platform_device_add() fail, and platform_device_del() should be used in
the error handling case after platform_device_add() success.Signed-off-by: Wei Yongjun
Cc: Evgeniy Polyakov
Cc: Greg KH
Cc: Neil Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use platform_device_put() instead of platform_device_unregister() if
platform_device_add() fail, and platform_device_del() should be used in
the error handling case after platform_device_add() success.Signed-off-by: Wei Yongjun
Cc: Evgeniy Polyakov
Cc: Greg KH
Cc: Neil Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use platform_device_put() instead of platform_device_unregister() if
platform_device_add() fails, and also add the return value check of
platform_device_add_data().Signed-off-by: Wei Yongjun
Cc: Evgeniy Polyakov
Cc: Greg KH
Cc: Neil Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Apr, 2013
1 commit
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GENERIC_GPIO is now equivalent to GPIOLIB and features that depended on
GENERIC_GPIO can now depend on GPIOLIB to allow removal of this option.Signed-off-by: Alexandre Courbot
Acked-by: Linus Walleij
Acked-by: Grant Likely
27 Mar, 2013
1 commit
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…/broonie/misc into char-misc-next
Mark writes:
ASoC/extcon: arizona: Fix interaction between HPDET and headphone outputs
This patch series covers both ASoC and extcon subsystems and fixes an
interaction between the HPDET function and the headphone outputs - we
really shouldn't run HPDET while the headphone is active. The first
patch is a refactoring to make the extcon side easier.
16 Mar, 2013
2 commits
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Acked-by: Evgeniy Polyakov
Signed-off-by: Jean-Francois Dagenais
Signed-off-by: Greg Kroah-Hartman -
De-activating this reading back will effectively half the time required
for a write to the output register.Acked-by: Evgeniy Polyakov
Signed-off-by: Jean-Francois Dagenais
Signed-off-by: Greg Kroah-Hartman
13 Mar, 2013
4 commits
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According to Documentation/driver-model/devres.txt:
devm_request_and_ioremap() : obsoleted by devm_ioremap_resource()
Signed-off-by: Fabio Estevam
Signed-off-by: Greg Kroah-Hartman -
On Sat, Mar 02, 2013 at 10:45:10AM +0100, Sven Geggus wrote:
> This is the bad commit I found doing git bisect:
> 04f482faf50535229a5a5c8d629cf963899f857c is the first bad commit
> commit 04f482faf50535229a5a5c8d629cf963899f857c
> Author: Patrick McHardy
> Date: Mon Mar 28 08:39:36 2011 +0000Good job. I was too lazy to bisect for bad commit;)
Reading the code I found problematic kthread_should_stop call from netlink
connector which causes the oops. After applying a patch, I've been testing
owfs+w1 setup for nearly two days and it seems to work very reliable (no
hangs, no memleaks etc).
More detailed description and possible fix is given below:Function w1_search can be called from either kthread or netlink callback.
While the former works fine, the latter causes oops due to kthread_should_stop
invocation.This patch adds a check if w1_search is serving netlink command, skipping
kthread_should_stop invocation if so.Signed-off-by: Marcin Jurkowski
Acked-by: Evgeniy Polyakov
Cc: Josh Boyer
Tested-by: Sven Geggus
Signed-off-by: Greg Kroah-Hartman
Cc: stable # 3.0+ -
Commit 8a1861d997 ("w1-gpio: Simplify & get rid of defines") removed the
compile guards from the device-tree id table, thereby generating a
warning when building without device-tree support.Signed-off-by: Johan Hovold
Signed-off-by: Greg Kroah-Hartman -
Commit 8a1861d997 ("w1-gpio: Simplify & get rid of defines") changed
(apparently unknowingly) the driver to a hotpluggable platform-device
driver but did not not update the section markers for probe and remove
(to __devinit/exit, which have since been removed). A later commit fixed
the section mismatch for probe, but left remove marked with __exit.Signed-off-by: Johan Hovold
Cc: stable # 3.8
Signed-off-by: Greg Kroah-Hartman
01 Mar, 2013
1 commit
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Pull ARM SoC i.MX DT changes from Olof Johansson:
"This branch contains of devicetree changes for the Freescale i.MX
platform.The base patch of the branch changes the format of the dts files to a
slightly different format that makes it easier to do derivative board
definitions, but it also introduces a lot of churn in the process
since every line of the file is touched.On top of that are a handful of the regular changes; enabling more
boards as DT-based instead of legacy board files (mx25pdk), enabling
another driver for devicetree and thus adding bindings (onewire), etc.I'm not happy about the churn, and will likely not take it for other
platforms in the future."* tag 'late-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
ARM: dts: add dtsi for imx6q and imx6dl
ARM: dts: rename imx6q.dtsi to imx6qdl.dtsi
ARM: dts: i.MX6: Add regulator delay support
ARM: dts: Add device tree entry for onewire master on i.MX53
ARM: i.MX53: Add clocks for i.mx53 onewire master.
W1: Add device tree support to MXC onewire master.
ARM: imx: enable imx6q-cpufreq support
ARM: dts: Add apf51 basic support
ARM i.MX6: change mxs usbphy clock usage
ARM: dts: imx6q: Remove silicon version from SDMA firmware
ARM i.MX53: dts: add oftree for MBa53 baseboard
ARM i.MX53: add dts for the TQ tqma53 module
ARM: dts: imx53: pinctrl update
ARM i.MX51 babbage: Add keypad support
ARM: dts: imx: Add imx51 KPP entry
ARM: dts: imx25-karo-tx25: Put status entry in the end
ARM: mx25pdk: Add device tree support
ARM: dts: imx: use nodes label in board dts
ARM: dts: add missing imx dtb targets
ARM: boot: dts: Add an entry for imx27-pdk.dtb
...
28 Feb, 2013
1 commit
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Also fixes some whitespace inconsistency in Kconfig and w1_family.h when
DS2408 chip support was added.Signed-off-by: Mariusz Bialonczyk
Acked-by: Evgeniy Polyakov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Feb, 2013
1 commit
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Pull char/misc driver patches from Greg Kroah-Hartman:
"Here's the big char/misc driver patches for 3.9-rc1.Nothing major here, just lots of different driver updates (mei,
hyperv, ipack, extcon, vmci, etc.).All of these have been in the linux-next tree for a while."
* tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (209 commits)
w1: w1_therm: Add force-pullup option for "broken" sensors
w1: ds2482: Added 1-Wire pull-up support to the driver
vme: add missing put_device() after device_register() fails
extcon: max8997: Use workqueue to check cable state after completing boot of platform
extcon: max8997: Set default UART/USB path on probe
extcon: max8997: Consolidate duplicate code for checking ADC/CHG cable type
extcon: max8997: Set default of ADC debounce time during initialization
extcon: max8997: Remove duplicate code related to set H/W line path
extcon: max8997: Move defined constant to header file
extcon: max77693: Make max77693_extcon_cable static
extcon: max8997: Remove unreachable code
extcon: max8997: Make max8997_extcon_cable static
extcon: max77693: Remove unnecessary goto statement to improve readability
extcon: max77693: Convert to devm_input_allocate_device()
extcon: gpio: Rename filename of extcon-gpio.c according to kernel naming style
CREDITS: update email and address of Harald Hoyer
extcon: arizona: Use MICDET for final microphone identification
extcon: arizona: Always take the first HPDET reading as the final one
extcon: arizona: Clear _trig_sts bits after jack detection
extcon: arizona: Don't HPDET magic when headphones are enabled
...
19 Feb, 2013
2 commits
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Signed-off-by: Michael Arndt
Acked-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
Signed-off-by: Michael Arndt
Acked-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman
10 Feb, 2013
1 commit
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Signed-off-by: Martin Fuzzey
Acked-by: Sascha Hauer
Acked-by: Evgeniy Polyakov
Signed-off-by: Shawn Guo
30 Jan, 2013
1 commit
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This fixes the following section mismatch:
WARNING: drivers/w1/masters/w1-gpio.o(.data+0x188): Section mismatch in
reference from the variable w1_gpio_driver to the function
.init.text:w1_gpio_probe()
The variable w1_gpio_driver references
the function __init w1_gpio_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_consoleSigned-off-by: Hauke Mehrtens
Acked-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman
23 Jan, 2013
1 commit
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Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.Signed-off-by: Thierry Reding
Acked-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman
16 Jan, 2013
3 commits
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w1_therm includes some obsolete code to detect bad_roms, this is no
longer relevant.
The retry code is only used for this bad_rom test, however there is a
CRC check that detects a bad read, but does not trigger a retry. This
patch removes all the bad_rom code and uses the CRC check to trigger
retries.Signed-off-by: David Stevenson
Acked-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.At the same time, this fixes two faults. First, mdev, the result of
kzalloc, was never freed. Second, on failure of ioremap, 0 was returned.
This has been replaced by -EBUSY, which was the failure value for the call
to request_mem_region, with which the call to ioremap has been combined.The warning message on failure of ioremap is dropped, because
devm_request_and_ioremap already gives such messages on failure.Finally, the initial call to platform_get_resource is moved closer to the
call to devm_request_and_ioremap, which takes care of checking whether its
result is NULL, implying that a test on the result of this call to
platform_get_resource is not needed.Signed-off-by: Julia Lawall
Acked-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.Signed-off-by: Julia Lawall
Acked-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman
04 Jan, 2013
1 commit
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This slipped in through the merging of different trees. Remove
__devexit_p() use in the mxc_w1 driver.Cc: Evgeniy Polyakov
Cc: Fabio Estevam
Cc: Bill Pemberton
Cc: Sascha Hauer
Signed-off-by: Greg Kroah-Hartman
17 Dec, 2012
1 commit
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These devices are not available on other architectures, so
let's limit them to omap.If the driver subsystem maintainers want to build test
system wide changes without building for each target,
it's easy to carry a test patch that just strips out the
depends entries from Kconfig files.Signed-off-by: Tony Lindgren
Signed-off-by: Linus Torvalds
27 Nov, 2012
2 commits
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There's no reason to have the OF defines; it complicates the driver.
There's also no need for the funky platform_driver_probe.Add a few warnings in case there's a failure; helps us find out
what went wrong.Signed-off-by: Pantelis Antoniou
Signed-off-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
Enable pinctrl for w1-gpio.
Acked-by: Tony Lindgren
Signed-off-by: Pantelis Antoniou
Signed-off-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman
22 Nov, 2012
7 commits
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Remove conditional code based on CONFIG_HOTPLUG being false. It's
always on now in preparation of it going away as an option.Signed-off-by: Bill Pemberton
Cc: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.Signed-off-by: Bill Pemberton
Cc: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.Signed-off-by: Bill Pemberton
Cc: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.Signed-off-by: Bill Pemberton
Cc: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman -
We are dealing with mxc_w1 registers.
While at it use dev_err() instead.
Signed-off-by: Fabio Estevam
Signed-off-by: Greg Kroah-Hartman -
Using module_platform_driver() makes the code smaller and cleaner.
Signed-off-by: Fabio Estevam
Signed-off-by: Greg Kroah-Hartman -
With the new i.mx clock framework the mxc_w1 clock is registered as:
clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1.0");
So we do not need to pass "owire" string and can use NULL instead.
While at it, also fix the clock error handling code.
Acked-by: Sascha Hauer
Acked-by: Evgeniy Polyakov
Signed-off-by: Fabio Estevam
-----
Changes since v2:
- Add Ack's
Changes since v1:
- Fix clock error handling
drivers/w1/masters/mxc_w1.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
Signed-off-by: Greg Kroah-Hartman
