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* Merge tag 'for-v4.14' of ↵Linus Torvalds2017-09-093-124/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset changes from Sebastian Reichel: "New chip/feature support: - bq27xxx: support updating battery config from DT - bq24190: support loading battery charge info from DT - LTC2941: add LTC2942/LTC2944 support - max17042: add ACPI support - max1721x: new driver Misc: - Move bq27xxx w1 driver from w1 into power-supply subsystem - Introduce power_supply_set_input_current_limit_from_supplier - constify stuff - some minor fixes" * tag 'for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (39 commits) power: supply: bq27xxx: enable writing capacity values for bq27421 power: supply: bq24190_charger: Get input_current_limit from our supplier power: supply: bq24190_charger: Export 5V boost converter as regulator power: supply: bq24190_charger: Add power_supply_battery_info support power: supply: bq24190_charger: Add property system-minimum-microvolt power: supply: bq24190_charger: Enable devicetree config dt-bindings: power: supply: Add docs for TI BQ24190 battery charger power: supply: bq27xxx: Remove duplicate chip data arrays power: supply: bq27xxx: Enable data memory update for certain chips power: supply: bq27xxx: Add chip IDs for previously shadowed chips power: supply: bq27xxx: Create single chip data table power: supply: bq24190_charger: Add ti,bq24192i to devicetree table power: supply: bq24190_charger: Add input_current_limit property power: supply: Add power_supply_set_input_current_limit_from_supplier helper power: supply: max17042_battery: Fix compiler warning power: supply: core: Delete two error messages for a failed memory allocation in power_supply_check_supplies() power: supply: make device_attribute const power: supply: max17042_battery: Fix ACPI interrupt issues power: supply: max17042_battery: Add support for ACPI enumeration power: supply: lp8788: Make several arrays static const * const ...
| * power: supply: move HDQ interface for bq27xxx from w1 to power/supplyAndrew F. Davis2017-07-253-124/+0
| | | | | | | | | | | | | | | | | | | | The HDQ interface driver should be in this folder just like the I2C interface driver. Move this driver out of drivers/w1/slave and into drivers/power/supply. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
* | drivers: w1: add hwmon temp support for w1_thermJaghathiswari Rankappagounder Natarajan2017-08-311-0/+86
| | | | | | | | | | | | | | | | | | This change adds hwmon temp support for w1_therm. Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | drivers: w1: refactor w1_slave_show to make the temp reading functionality ↵Jaghathiswari Rankappagounder Natarajan2017-08-311-31/+51
| | | | | | | | | | | | | | | | | | | | | | | | separate Inside the w1_slave_show function refactor the code to read the temp into a separate function. Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | drivers: w1: Add 1w slave driver for DS28E05 EEPROMAndrew Worsley2017-08-283-0/+322
| | | | | | | | | | | | | | | | | | Add a one wire driver for the DS28E05 one wire slave chip. This chip requires OverDrive support to talk to it. Signed-off-by: Andrew Worsley <amworsley@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | w1: ds2438: make several functions staticColin Ian King2017-08-281-4/+5
|/ | | | | | | | | | | | | | | | The functions w1_ds2438_get_page, w1_ds2438_get_temperature, w1_ds2438_change_config_bit and w1_ds2438_get_voltage are local to the source and do not need to be in global scope, so make it static. Cleans up sparse warnings: symbol 'w1_ds2438_get_page' was not declared. Should it be static? symbol 'w1_ds2438_get_temperature' was not declared. Should it be static? symbol 'w1_ds2438_change_config_bit' was not declared. Should it be static? symbol 'w1_ds2438_get_voltage' was not declared. Should it be static? Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: Add subsystem kernel public interfaceAndrew F. Davis2017-06-0915-43/+53
| | | | | | | | | | | | | | | | | | | | Like other subsystems we should be able to define slave devices outside of the w1 directory. To do this we move public facing interface definitions to include/linux/w1.h and rename the internal definition file to w1_internal.h. As w1_family.h and w1_int.h contained almost entirely public driver interface definitions we simply removed these files and moved the remaining definitions into w1_internal.h. With this we can now start to move slave devices out of w1/slaves and into the subsystem based on the function they implement, again like other drivers. Signed-off-by: Andrew F. Davis <afd@ti.com> Reviewed-by: Sebastian Reichel <sre@kernel.org> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: Organize driver source to natural/common orderAndrew F. Davis2017-05-2513-55/+52
| | | | | | | | | | | | | | | Structures and functions should be ordered such that forward declaration use is minimized. MODULE_* macros should immediately follow the structures and functions upon which they act. Remaining MODULE_* macros should be at the end of the file in alphabetical order. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: w1_ds2760.h: fix defines indentationMariusz Bialonczyk2017-03-171-4/+6
| | | | | Signed-off-by: Mariusz Bialonczyk <manio@skyboo.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: add support for DS2438 Smart Battery MonitorMariusz Bialonczyk2017-03-173-0/+397
| | | | | | | | | Detailed information about support and provided sysfs files in my next commit which creates a documentation file: Documentation/w1/slaves/w1_ds2438 Signed-off-by: Mariusz Bialonczyk <manio@skyboo.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: ds2405: use module_w1_family to simplify the codeWei Yongjun2017-02-101-12/+1
| | | | | | | | | module_w1_family() makes the code simpler by eliminating boilerplate code. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: add DS2405 addressable switch driverMaciej S. Szmigiero2017-01-253-0/+247
| | | | | | | | | | | | | This adds a driver for a DS2405 1-wire single-channel addressable switch. The DS2405 can also work as a single-channel binary remote sensor. This driver supports two attributes: "state" and "output" which are the same attribute names as supported by existing DS2406, DS2408 and DS2413 drivers. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: w1: style corrections-pointers-blanklines-comparisonsBen Werbowyj2016-08-311-2/+4
| | | | | | | | | | | | Correct pointer notations to include whitespace between variable type and "*" character. Inserted blank line after variable declatations at two locations. Rearranged comparison within an if statment to have the constant on the right-hand side. Signed-off-by: Ben Werbowyj <ben.werbowyj@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: w1: removed assignment from within if statementBen Werbowyj2016-08-311-2/+4
| | | | | | | | | Assignment of variable count removed from within an if statment. This was done at two locations in the file. Signed-off-by: Ben Werbowyj <ben.werbowyj@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: w1: style corrections for parenthesis and bracesBen Werbowyj2016-08-311-6/+4
| | | | | | | | | | Inserted whitespace between command and open parenthesis at two locations. Removed new line between open brace and command/declaration at two locations. Signed-off-by: Ben Werbowyj <ben.werbowyj@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: add helper macro module_w1_familyAndrew F. Davis2016-08-0210-131/+10
| | | | | | | | | | | | | The helper macro module_w1_family can be used in module drivers that only register a w1 driver in their module init functions. Add this macro and use it in all applicable drivers. Link: http://lkml.kernel.org/r/20160531204313.20979-2-afd@ti.com Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* w1: remove need for ida and use PLATFORM_DEVID_AUTOAndrew F. Davis2016-08-023-66/+13
| | | | | | | | | | | | | PLATFORM_DEVID_AUTO can be used to have the platform core assign a unique ID instead of manually creating one with IDA. Do this in all applicable drivers. Link: http://lkml.kernel.org/r/20160531204313.20979-1-afd@ti.com Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* w1: add ability to set (SRAM) and store (EEPROM) configuration for temp ↵Ben Sen2016-05-011-7/+211
| | | | | | | | | | | | | | sensors like DS18B20 Since many temperature sensors come "preconfigured" with a lower precision, people are stuck at that precision when running on a kernel based device (unlike the Dallas 1Wire library for e.g. Arduino, which supports writing the configuration/scratchpad). This patch adds write support for the scratchpad/precision registers via w1_slave sysfs. Signed-off-by: Ben Sen <0.x29a.0@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* power: bq27xxx_battery: Platform initialization must declare a deviceAndrew F. Davis2015-09-231-0/+1
| | | | | | | | When initialized as a platform device the initializer must now specify a device. An empty device name is no longer valid. Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* power: bq27x00_battery: Renaming for consistencyAndrew F. Davis2015-09-231-2/+2
| | | | | | | | | | | Rename functions that are used by multiple devices. New devices have been added and the function names and driver name are no longer general enough for the functionality they provide. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: GUAN Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* w1: use correct lock on error in w1_seq_show()Dan Carpenter2015-06-121-2/+2
| | | | | | | | | | | | | | | | | I noticed there was a problem here because Smatch complained: drivers/w1/slaves/w1_therm.c:416 w1_seq_show() warn: inconsistent returns 'mutex:&sl->master->mutex'. Locked on: line 416 Unlocked on: line 413 The problem is that we lock ->mutex but we unlock ->bus_mutex on error. David Fries says that ->bus_mutex is correct and ->mutex is incorrect. Fixes: d9411e57dc7f ('w1: Add support for DS28EA00 sequence to w1-therm') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: fix for loop exit condition in w1_seq_show()Dan Carpenter2015-06-121-1/+1
| | | | | | | | | The W1_42_FINISHED_BYTE is 0xFF so the cast means the condition is never true. Fixes: d9411e57dc7f ('w1: Add support for DS28EA00 sequence to w1-therm') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: Add support for DS28EA00 sequence to w1-thermMatt Campbell2015-05-241-1/+101
| | | | | | | | | | | | | | | This patch provides support for the DS28EA00 digital thermometer. The DS28EA00 provides an additional two pins for implementing a sequence detection algorithm. This feature allows you to determine the physical location of the chip in the 1-wire bus without needing pre-existing knowledge of the bus ordering. Support is provided through the sysfs w1_seq file. The file will contain a single line with an integer value representing the device index in the bus starting at 0. Signed-off-by: Matt Campbell <mattrcampbell@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1_therm reference count family dataDavid Fries2015-05-241-15/+47
| | | | | | | | | | | | | | | | A temperature conversion can take 750 ms and when possible the w1_therm slave driver drops the bus_mutex to allow other bus operations, but that includes operations such as a periodic slave search, which can remove this slave when it is no longer detected. If that happens the sl->family_data will be freed and set to NULL causing w1_slave_show to crash when it wakes up. Signed-off-by: David Fries <David@Fries.net> Reported-By: Thorsten Bschorr <thorsten@bschorr.de> Tested-by: Thorsten Bschorr <thorsten@bschorr.de> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: support auto-load of w1_bq27000 module.NeilBrown2014-11-261-2/+2
| | | | | | | | | | | | | | | | | | | | 1/ change request_module call to zero-pad single digit family numbers. This appears to be the intention of the code, but not what it actually does. This means that the alias created for W1_FAMILY_SMEM_01 might actually be useful. 2/ Define a family name for the BQ27000 battery charge monitor. Unfortunately this is the same number as W1_FAMILY_SMEM_01 so if both a compiled on a system, one module might need to be blacklisted. 3/ Add a MODULE_ALIAS for the bq27000. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: select crc16 library for ds2406Arnd Bergmann2014-06-231-0/+1
| | | | | | | | | | | | | commit 94859308a21b "w1: new w1_ds2406 driver" added a new driver that uses the crc16 library, but didn't ensure that the core is there. This adds the necessary Kconfig statements, just like we have it for other w1 drivers. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Scott Alfter <scott@alfter.us> Cc: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1/slaves: use pr_* instead of printkFjodor Schelichow2014-06-191-2/+1
| | | | | | | | | | | | | | This patch replaces all calls to the "printk" function within the "slaves" subdirectory by calls to the appropriate "pr_*" function thus addressing the following warning generated by the checkpatch script: WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... Signed-off-by: Fjodor Schelichow <fjodor.schelichow@hotmail.com> Signed-off-by: Roman Sommer <romsom2@yahoo.de> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: new w1_ds2406 driverScott Alfter2014-06-193-0/+176
| | | | | | | | | | | | | Some preliminary work at making use of this driver led me to implement CRC-16 checks on read and write to deal with the occasional glitchiness of the 1-Wire bus. The revised driver (attached) returns an I/O error if the CRC check fails. When reading the chip's state, either you get a valid indication or you get an I/O error. When changing its state, either the change is successful or an I/O error is returned. Signed-off-by: Scott Alfter <scott@alfter.us> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: Remove excess dependencies on W1 for masters and slavesAlexander Shiyan2014-02-281-5/+0
| | | | | | | | Configuration for masters and slaves is included only if W1 symbol enabled, so no reason to check it once more. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: use family_data instead of rom in w1_slaveDavid Fries2014-02-071-2/+19
| | | | | | | | | | | | | | The first line printed from w1_slave gives the context of the w1 device. So does the second line, but if the CRC check failed, the second line contains the last successful result. It is confusing when it prints the temperature next to the line that might be a previous conversion and has nothing to do with that printed temperature value. Modify the code to store the last good conversion in family_data, which is designed for custom data structures. Signed-off-by: David Fries <David@Fries.net> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds2781: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-18/+18
| | | | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds2760: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-17/+18
| | | | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds2780: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-18/+18
| | | | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds28e04: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-70/+42
| | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds2433: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-25/+22
| | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds2431: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-24/+19
| | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds2423: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-18/+9
| | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds2413.c: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-50/+22
| | | | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Cc: Mariusz Bialonczyk <manio@skyboo.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_ds2408: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-122/+52
| | | | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: slaves: w1_therm: convert to use w1_family_ops.groupsGreg Kroah-Hartman2013-08-221-15/+9
| | | | | | | | | | | This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: David Stevenson <david@avoncliff.com> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Cc: Michael Arndt <michael@scriptkiller.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test modeJean-Francois Dagenais2013-07-031-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | 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,<64-bit DS2408 ROM Code>,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 <jeff.dagenais@gmail.com> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* w1: add family based automatic module loadingAlexander Stein2013-06-0311-0/+16
| | | | | | | | | 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 <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers/w1/slaves/w1_ds2760.c: fix the error handling in w1_ds2760_add_slave()Wei Yongjun2013-04-301-1/+2
| | | | | | | | | | | | | 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 <yongjun_wei@trendmicro.com.cn> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/w1/slaves/w1_ds2781.c: fix the error handling in w1_ds2781_add_slave()Wei Yongjun2013-04-301-1/+2
| | | | | | | | | | | | | 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 <yongjun_wei@trendmicro.com.cn> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/w1/slaves/w1_ds2780.c: fix the error handling in w1_ds2780_add_slave()Wei Yongjun2013-04-301-1/+2
| | | | | | | | | | | | | 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 <yongjun_wei@trendmicro.com.cn> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/w1/slaves/w1_bq27000.c: fix the error handling in w1_bq27000_add_slave()Wei Yongjun2013-04-301-1/+3
| | | | | | | | | | | | | 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 <yongjun_wei@trendmicro.com.cn> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* w1: ds2408: use ARRAY_SIZE instead of hard-coded numberJean-Francois Dagenais2013-03-151-4/+3
| | | | | | Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: ds2408: make value read-back check a Kconfig optionJean-Francois Dagenais2013-03-152-6/+22
| | | | | | | | | De-activating this reading back will effectively half the time required for a write to the output register. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: add support for DS2413 Dual Channel Addressable SwitchMariusz Bialonczyk2013-02-273-5/+188
| | | | | | | | | | Also fixes some whitespace inconsistency in Kconfig and w1_family.h when DS2408 chip support was added. Signed-off-by: Mariusz Bialonczyk <manio@skyboo.net> 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: w1_therm: Add force-pullup option for "broken" sensorsMichael Arndt2013-02-181-1/+10
| | | | | | Signed-off-by: Michael Arndt <michael@scriptkiller.de> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 16:08:42 +0000