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2024-06-09hwmon: (w83781d) Remove use of i2c_match_id()Andrew Davis1-3/+1
The function i2c_match_id() is used to fetch the matching ID from the i2c_device_id table. This is often used to then retrieve the matching driver_data. This can be done in one step with the helper i2c_get_match_data(). This helper has a couple other benefits: * It doesn't need the i2c_device_id passed in so we do not need to have that forward declared, allowing us to remove those or move the i2c_device_id table down to its more natural spot with the other module info. * It also checks for device match data, which allows for OF and ACPI based probing. That means we do not have to manually check those first and can remove those checks. Signed-off-by: Andrew Davis <afd@ti.com> Link: https://lore.kernel.org/r/20240403203633.914389-31-afd@ti.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-27hwmon: (w83781d) Convert to platform remove callback returning voidUwe Kleine-König1-5/+2
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230918085951.1234172-24-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-06-08hwmon: Switch i2c drivers back to use .probe()Uwe Kleine-König1-1/+1
After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230505131718.1210071-1-u.kleine-koenig@pengutronix.de [groeck: Added missing change in pmbus/acbel-fsg032.c] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-10-05Merge tag 'hwmon-for-v6.1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "New drivers: - Driver for MAX31760 fan speed controller - Driver for TEXAS TPS546D24 Buck Converter - Driver for EMC2301/2/3/5 RPM-based PWM Fan Speed Controller Removed drivers: - Drop obsolete asus_wmi_ec_sensors driver Cleanups, affecting various drivers: - Use DEFINE_SIMPLE_DEV_PM_OPS where appropriate - Remove forward declarations - Move from strlcpy with unused retval to strscpy - Make use of devm_clk_get_enabled() - Drop devm_of_pwm_get() Other notable cleanup and improvements: - Support for additional USB devide ID and support for reporting of rail mode via debugfs added to corsair-psu driver - Support for aditional USB ID in nzxt-smart2 driver - Support for Aquacomputer High Flow Next in aquacomputer_d5next driver - Major cleanup of pwm-fan driver - Major cleanup of mr75203 driver, and added support for new device revision And various other minor fixes and cleanups" * tag 'hwmon-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (86 commits) hwmon: (corsair-psu) add USB id of new revision of the HX1000i psu hwmon: (pmbus/mp2888) Fix sensors readouts for MPS Multi-phase mp2888 controller dt-bindings: hwmon: sensirion,shtc1: Clean up spelling mistakes and grammar hwmon: (nct6683) remove unused variable in nct6683_create_attr_group hwmon: w83627hf: Reorder symbols to get rid of a few forward declarations hwmon: (ina3221) Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() hwmon: (w83627ehf) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (tmp108) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (tmp103) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (tmp102) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (pwm-fan) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (nct6775) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (max6639) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (max31730) witch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (max31722) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (ltc2947) Switch to EXPORT_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (lm90) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (it87) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (gpio-fan) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (adt7x10) Switch to EXPORT_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() ...
2022-09-19hwmon: move from strlcpy with unused retval to strscpyWolfram Sang1-1/+1
Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20220818210014.6769-1-wsa+renesas@sang-engineering.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-08-16i2c: Make remove callback return voidUwe Kleine-König1-3/+1
The value returned by an i2c driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com> Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au> Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Crt Mori <cmo@melexis.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013 Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/* Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5 Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860 Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power Acked-by: Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2021-10-12hwmon: cleanup non-bool "valid" data fieldsPaul Fertser1-2/+2
We have bool so use it consistently in all the drivers. The following Coccinelle script was used: @@ identifier T; type t = { char, int }; @@ struct T { ... - t valid; + bool valid; ... } @@ identifier v; @@ ( - v->valid = 0 + v->valid = false | - v->valid = 1 + v->valid = true ) followed by sed to fixup the comments: sed '/bool valid;/{s/!=0/true/;s/zero/false/}' Few whitespace changes were fixed manually. All modified drivers were compile-tested. Signed-off-by: Paul Fertser <fercerpav@gmail.com> Link: https://lore.kernel.org/r/20210924195202.27917-1-fercerpav@gmail.com [groeck: Fixed up 'u8 valid' to 'boool valid' in atxp1.c] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-08-18hwmon: (w83781d) Match on device tree compatiblesLinus Walleij1-0/+11
I2C devices should match on the proper compatible string. This is already used in one device tree in the kernel (MIPS) so let's add the matches. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210729230543.2853485-2-linus.walleij@linaro.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-09-23hwmon: use simple i2c probe functionStephen Kitt1-4/+5
Many hwmon drivers don't use the id information provided by the old i2c probe function, and the remainder can easily be adapted to the new form ("probe_new") by calling i2c_match_id explicitly. This avoids scanning the identifier tables during probes. Drivers which didn't use the id are converted as-is; drivers which did are modified as follows: * if the information in i2c_client is sufficient, that's used instead (client->name); * anything else is handled by calling i2c_match_id() with the same level of error-handling (if any) as before. A few drivers aren't included in this patch because they have a different set of maintainers. They will be covered by other patches. Signed-off-by: Stephen Kitt <steve@sk2.org> Link: https://lore.kernel.org/r/20200813160222.1503401-1-steve@sk2.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-08-24treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva1-1/+1
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2019-09-03hwmon: (w83781d) convert to i2c_new_dummy_deviceWolfram Sang1-3/+3
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an ERRPTR which we use in error handling. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20190722172611.3797-4-wsa+renesas@sang-engineering.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61Thomas Gleixner1-14/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 441 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-16hwmon: (w83781d) Remove duplicate NULL checkAndy Shevchenko1-8/+4
Since i2c_unregister_device() became NULL-aware we may remove duplicate NULL check. Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-hwmon@vger.kernel.org Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Acked-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-01-02hwmon: (w83781d) use permission-specific DEVICE_ATTR variantsJulia Lawall1-18/+16
Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for read/write attributes. This simplifies the source code, improves readbility, and reduces the chance of inconsistencies. The conversion was done automatically using coccinelle. It was validated by compiling both the old and the new source code and comparing its text, data, and bss size. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> [groeck: Updated description] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-10-20hwmon: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-01-29Update Jean Delvare's e-mail addressJean Delvare1-1/+1
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2013-04-08hwmon: Fix checkpatch warning 'quoted string split across lines'Guenter Roeck1-17/+19
Cc: Corentin Labbe <corentin.labbe@geomatys.fr> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Juerg Haefliger <juergh@gmail.com> Cc: Andreas Herrmann <herrmann.der.user@googlemail.com> Cc: Rudolf Marek <r.marek@assembler.cz> Cc: Jim Cromie <jim.cromie@gmail.com> Cc: Roger Lucas <vt8231@hiddenengine.co.uk> Cc: Marc Hulsman <m.hulsman@tudelft.nl> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-01-26hwmon: Replace SENSORS_LIMIT with clamp_valGuenter Roeck1-9/+8
SENSORS_LIMIT and the generic clamp_val have the same functionality, and clamp_val is more efficient. This patch reduces text size by 9052 bytes and bss size by 11624 bytes for x86_64 builds. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: George Joseph <george.joseph@fairview5.com> Acked-by: Jean Delvare <khali@linux-fr.org>
2012-11-28hwmon: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Alistair John Strachan <alistair@devzero.co.uk> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Juerg Haefliger <juergh@gmail.com> Cc: Andreas Herrmann <herrmann.der.user@googlemail.com> Cc: Clemens Ladisch <clemens@ladisch.de> Cc: Rudolf Marek <r.marek@assembler.cz> Cc: Jim Cromie <jim.cromie@gmail.com> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Roger Lucas <vt8231@hiddenengine.co.uk> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28hwmon: remove use of __devinitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Alistair John Strachan <alistair@devzero.co.uk> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Juerg Haefliger <juergh@gmail.com> Cc: Andreas Herrmann <herrmann.der.user@googlemail.com> Cc: Clemens Ladisch <clemens@ladisch.de> Cc: Rudolf Marek <r.marek@assembler.cz> Cc: Jim Cromie <jim.cromie@gmail.com> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Roger Lucas <vt8231@hiddenengine.co.uk> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28hwmon: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Alistair John Strachan <alistair@devzero.co.uk> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Juerg Haefliger <juergh@gmail.com> Cc: Andreas Herrmann <herrmann.der.user@googlemail.com> Cc: Clemens Ladisch <clemens@ladisch.de> Cc: Rudolf Marek <r.marek@assembler.cz> Cc: Jim Cromie <jim.cromie@gmail.com> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Roger Lucas <vt8231@hiddenengine.co.uk> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-06hwmon: Fix chip feature table headersJean Delvare1-1/+1
These got broken by recent patches fixing checkpatch warnings in these drivers. The trick is that the patches themselves looked good, but the source files after applying them do not. That's why I am not a big fan of using tabs inside comments. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <linux@roeck-us.net>
2012-07-22hwmon: (w83781d) Fix compile warningGuenter Roeck1-3/+3
The following compile warning may be seen if the driver is compiled with -Wuninitialized: drivers/hwmon/w83781d.c: warning: 'sc_addr[1]' may be used uninitialized in this function [-Wuninitialized] While this is a false positive, it is annoying in nightly builds, and may help to conceal real problems. The current code is quite tricky, and and it is easy to rearrage the code to make the warning disappear. So fix it. Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-07-22hwmon: (w83781d) Convert to use devm_ functionsGuenter Roeck1-30/+16
Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
2012-03-19hwmon: (w83781d) Fix: do not use assignment in if conditionGuenter Roeck1-68/+72
Fix checkpatch issue: ERROR: do not use assignment in if condition Replace repeated calls to device_create_file() with calls to sysfs_create_group. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-03-19hwmon: (w83781d) Fix multi-line commentsGuenter Roeck1-80/+117
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-03-19hwmon: (w83781d) Fix checkpatch issuesGuenter Roeck1-54/+92
Fixed: ERROR: code indent should use tabs where possible ERROR: do not use assignment in if condition ERROR: "foo* bar" should be "foo *bar" ERROR: space prohibited after that open parenthesis '(' ERROR: space required after that ',' (ctx:VxV) ERROR: spaces required around that '==' (ctx:VxV) WARNING: line over 80 characters WARNING: simple_strtol is obsolete, use kstrtol instead WARNING: simple_strtoul is obsolete, use kstrtoul instead WARNING: space prohibited between function name and open parenthesis '(' Not fixed (false positive): ERROR: Macros with multiple statements should be enclosed in a do - while loop ERROR: Macros with complex values should be enclosed in parenthesis Not all fixed (code complexity): ERROR: do not use assignment in if condition Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-01-13module_param: make bool parameters really bool (drivers & misc)Rusty Russell1-2/+2
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-04hwmon: Use i2c_smbus_{read,write}_word_swappedJean Delvare1-5/+5
Make use of the new i2c_smbus_{read,write}_word_swapped functions. This makes the driver code more compact and readable. It also ensures proper error handling. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Dirk Eibach <eibach@gdsys.de> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Guillaume Ligneul <guillaume.ligneul@gmail.com>
2011-01-12hwmon: (w83781d) Use pr_fmt and pr_<level>Joe Perches1-15/+14
Added #define pr_fmt KBUILD_MODNAME ": " fmt Converted printks to pr_<level> Coalesced any long formats Removed prefixes from formats [JD: Optimize repeated debug messages] Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-06-03i2c: Remove all i2c_set_clientdata(client, NULL) in driversWolfram Sang1-2/+0
I2C drivers can use the clientdata-pointer to point to private data. As I2C devices are not really unregistered, but merely detached from their driver, it used to be the drivers obligation to clear this pointer during remove() or a failed probe(). As a couple of drivers forgot to do this, it was agreed that it was cleaner if the i2c-core does this clearance when appropriate, as there is no guarantee for the lifetime of the clientdata-pointer after remove() anyhow. This feature was added to the core with commit e4a7b9b04de15f6b63da5ccdd373ffa3057a3681 to fix the faulty drivers. As there is no need anymore to clear the clientdata-pointer, remove all current occurrences in the drivers to simplify the code and prevent confusion. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Richard Purdie <rpurdie@linux.intel.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-02-05hwmon: (w83781d) Request I/O ports individually for probingJean Delvare1-13/+13
Different motherboards have different PNP declarations for W83781D/W83782D chips. Some declare the whole range of I/O ports (8 ports), some declare only the useful ports (2 ports at offset 5) and some declare fancy ranges, for example 4 ports at offset 4. To properly handle all cases, request all ports individually for probing. After we have determined that we really have a W83781D or W83782D chip, the useful port range will be requested again, as a single block. I did not see a board which needs this yet, but I know of one for lm78 driver and I'd like to keep the logic of these two drivers in sync. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org
2009-12-14i2c: Drop I2C_CLIENT_INSMOD_2 to 8Jean Delvare1-2/+3
These macros simply declare an enum, so drivers might as well declare it themselves. This puts an end to the arbitrary limit of 8 chip types per i2c driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
2009-12-14i2c: Get rid of struct i2c_client_address_dataJean Delvare1-1/+1
Struct i2c_client_address_data only contains one field at this point, which makes its usefulness questionable. Get rid of it and pass simple address lists around instead. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
2009-12-14i2c: Drop the kind parameter from detect callbacksJean Delvare1-2/+1
The "kind" parameter always has value -1, and nobody is using it any longer, so we can remove it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
2009-12-09hwmon: (w83781d) Clean up detect functionJean Delvare1-78/+53
As kind is now hard-coded to -1, there is room for code clean-ups. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-09-15hwmon: Include <linux/io.h> instead of <asm/io.h>H Hartley Sweeten1-1/+1
Drivers should be including <linux/io.h> instead of <asm/io.h>. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Alistair John Strachan <alistair@devzero.co.uk> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Juerg Haefliger <juergh@gmail.com> Cc: Frank Seidel <frank@f-seidel.de> Acked-by: Jim Cromie <jim.cromie@gmail.com> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Roger Lucas <vt8231@hiddenengine.co.uk> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-05-08hwmon: (w83781d) Fix W83782D support (NULL pointer dereference)Jean Delvare1-1/+2
Commit 360782dde00a2e6e7d9fd57535f90934707ab8a8 (hwmon: (w83781d) Stop abusing struct i2c_client for ISA devices) broke W83782D support for devices connected on the ISA bus. You will hit a NULL pointer dereference as soon as you read any device attribute. Other devices, and W83782D devices on the SMBus, aren't affected. Reported-by: Michel Abraham Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Michel Abraham
2009-01-07hwmon: Don't overuse I2C_CLIENT_MODULE_PARMJean Delvare1-1/+4
I2C_CLIENT_MODULE_PARM is overkill for force_subclients. We really only use 4 out of the 48 slots, so we're better defining a custom variable instead. This change saves 92 bytes of data for each of the five drivers affected. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Marc Hulsman <m.hulsman@tudelft.nl> Cc: Mark M. Hoffman <mhoffman@lightlink.com>
2008-10-26hwmon: (w83781d) Fix linking when built-inGeert Uytterhoeven1-2/+2
When w83781d is built-in, the final links fails with the following vague error message: `.exit.text' referenced in section `.init.text' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o w83781d_isa_unregister() cannot be marked __exit, as it's also called from sensors_w83781d_init(), which is marked __init. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-10-17hwmon: (w83781d) Use new style driver bindingWolfgang Grandegger1-175/+134
This patch modifies the w83781d driver to use new style driver binding. Substantial code modifications are required to deal with the new interface, especially legacy device detection. [JD: largely edited to make the patch smaller and to get the driver to work again on ISA devices.] Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-10-17hwmon: (w83781d) Stop abusing struct i2c_client for ISA devicesJean Delvare1-37/+26
Upcoming changes to the I2C part of the w83781d driver will cause ISA devices to no longer have a struct i2c_client at hand. So, we must stop (ab)using it now. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Wolfgang Grandegger <wg@grandegger.com>
2008-10-17hwmon: (w83781d) Make ISA interface depend on CONFIG_ISAWolfgang Grandegger1-280/+393
Probing the ISA bus on systems without ISA bus may hang the system. This patch makes the ISA bus related code depend on the kernel configuration parameter CONFIG_ISA. It moves ISA bus related code into one #ifdef CONFIG_ISA ... #endif block and adds some helper function. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-10-17hwmon: (w83781d) Detect alias chipsJean Delvare1-13/+66
The W83781D and W83782D can be accessed either on the I2C bus or the ISA bus. We must not access the same chip through both interfaces. So far we were relying on the user passing the correct ignore parameter to skip the registration of the I2C interface as suggested by sensors-detect, but this is fragile: the user may load the w83781d driver without running sensors-detect, and the i2c bus numbers are not stable across reboots and hardware changes. So, better detect alias chips in the driver directly, and skip any I2C chip which is obviously an alias of the ISA chip. This is done by comparing the value of 26 selected registers. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Wolfgang Grandegger <wg@grandegger.com>
2008-10-17hwmon: (w83781d) Refactor beep enable handlingJean Delvare1-37/+9
We can handle the beep enable bit as any other beep mask bit for slightly smaller code. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Wolfgang Grandegger <wg@grandegger.com>
2008-03-27hwmon: (w83781d) Fix I/O resource conflict with PNPJean Delvare1-5/+16
Only request I/O ports 0x295-0x296 instead of the full I/O address range. This solves a conflict with PNP resources on a few motherboards. Also request the I/O ports in two parts (4 low ports, 4 high ports) during device detection, otherwise the PNP resource makes the request (and thus the detection) fail. This fixes lm-sensors ticket #2306: http://www.lm-sensors.org/ticket/2306 Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-19hwmon: normal_i2c arrays should be constMark M. Hoffman1-2/+2
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-08hwmon: (w83781d) Misc cleanupsJean Delvare1-9/+4
* Drop unused defines * Drop unused driver ID * Remove trailing whitespace Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-08hwmon: (w83781d) Drop W83627HF supportJean Delvare1-24/+5
The W83627HF hardware monitoring features are supported by the w83627hf driver for several years now. Support by the w83781d has been advertised as deprecated 6 months ago, it's about time to see it go. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-08hwmon: (lm78/w83781d) Probe fewer I2C addressesJean Delvare1-4/+3
We've never seen any device supported by the lm78 or w83781d driver at addresses 0x20-0x27, so let's stop probing these addresses. Extra probes cost time, and have potential for confusing or misdetecting other I2C devices. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
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