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2018-08-04i2c: pmcmsp: use core to detect 'no zero length' quirkWolfram Sang1-16/+1
And don't reimplement in the driver. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-05-15i2c: pmcmsp: fix error return from master_xferPeter Rosin1-1/+1
Returning -1 (-EPERM) is not appropriate here, go with -EIO. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver")
2018-05-15i2c: pmcmsp: return message count on master_xfer successPeter Rosin1-1/+1
Returning zero is wrong in this case. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver")
2017-08-12i2c: constify internal structuresGustavo A. R. Silva1-2/+2
Check for i2c_algorithm and i2c_adapter_quirks structures that are only stored in the algo and quirks fields of an i2c_adapter structure correspondingly. These fields are declared const, so i2c_algorithm and i2c_adapter_quirks structures that have this property can be declared as const also. Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> (for designware) Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-08-22i2c: don't print error when adding adapter failsWolfram Sang1-3/+1
The core will do this for us now. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Peter Korsgaard <peter@korsgaard.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Ray Jui <ray.jui@broadcom.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-03-13i2c: pmcmsp: make use of the new infrastructure for quirksWolfram Sang1-26/+16
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-01-13i2c: pmcmsp: remove dead codeWolfram Sang1-7/+0
CPPCHECK rightfully says: drivers/i2c/busses/i2c-pmcmsp.c:151: style: The function 'pmcmsptwi_reg_to_clock' is never used. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-12-14Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-11-07i2c: remove FSF addressWolfram Sang1-4/+0
We have a central copy of the GPL for that. Some addresses were already outdated. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2014-10-20i2c: busses: 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>
2014-01-24i2c: delete non-required instances of include <linux/init.h>Paul Gortmaker1-1/+0
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-02-22i2c: Remove unneeded xxx_set_drvdata(..., NULL) callsDoug Anderson1-2/+0
There is simply no reason to be manually setting the private driver data to NULL in the remove/fail to probe cases. This is just extra cruft code that can be removed. A few notes: * Nothing relies on drvdata being set to NULL. * The __device_release_driver() function eventually calls dev_set_drvdata(dev, NULL) anyway, so there's no need to do it twice. * I verified that there were no cases where xxx_get_drvdata() was being called in these drivers and checking for / relying on the NULL return value. This could be cleaned up kernel-wide but for now just take the baby step and remove from the i2c subsystem. Reported-by: Wolfram Sang <wsa@the-dreams.de> Reported-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Jean Delvare <khali@linux-fr.org> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
2012-12-22i2c: remove __dev* attributes from subsystemBill Pemberton1-3/+3
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Peter Korsgaard <peter.korsgaard@barco.com> (for ocores and mux-gpio) Acked-by: Havard Skinnemoen <hskinnemoen@gmail.com> (for i2c-gpio) Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> (for puf3) Acked-by: Barry Song <baohua.song@csr.com> (for sirf) Reviewed-by: Jean Delvare <khali@linux-fr.org> [wsa: Fixed "foo* bar" flaws while we are here] Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-07-19i2c-pmcmsp: remove IRQF_SAMPLE_RANDOM which is now a no-opTheodore Ts'o1-2/+1
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a no-op; interrupt randomness is now collected unconditionally in a very low-overhead fashion; see commit 775f4b297b. The IRQF_SAMPLE_RANDOM flag was scheduled to be removed in 2009 on the feature-removal-schedule, so this patch is preparation for the final removal of this flag. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: "Ben Dooks" <ben-linux@fluff.org> Cc: "Wolfram Sang" <w.sang@pengutronix.de>
2012-01-12i2c/busses: Use module_platform_driver()Axel Lin1-15/+2
Convert the drivers in drivers/i2c/busses/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Jochen Friedrich <jochen@scram.de> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Manuel Lauss <manuel.lauss@googlemail.com> Cc: Barry Song <21cnbao@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Yong Zhang <yong.zhang0@gmail.com> Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-10-29i2c: irq: Remove IRQF_DISABLEDYong Zhang1-1/+1
Since commit [c58543c8: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-21i2c: Use <linux/io.h> instead of <asm/io.h>H Hartley Sweeten1-1/+1
As warned by checkpatch.pl, <linux/io.h> should be used instead of <asm/io.h>. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-06-16i2c: Use resource_size macroLinus Walleij1-4/+4
This replace all instances in the i2c busses tree of res->end - res->start + 1 with the handy macro resource_size(res) from ioport.h (coming in from platform_device.h). This was created with a simple sed -i -e 's/\([a-z]*\)->end *- *[a-z]*->start *+ *1/resource_size(\1)/g' Then manually replacing the PXA redefiniton of the same kind of macro manually. Recompiled some ARM defconfigs I could find to make a rough test so it shouldn't break anything, though I couldn't see exactly which configs you need for all the drivers. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-11i2c-pmcmsp: Fix endianness misannotationHarvey Harrison1-1/+1
tmp is used as host-endian and is loaded from a be64, fix the cast and the endian accessor used. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-14i2c: Let bus drivers add SPD to their classJean Delvare1-1/+1
Let general purpose I2C/SMBus bus drivers add SPD to their class. Once this is done, we will be able to tell the eeprom driver to only probe for SPD EEPROMs and similar on these buses. Note that I took a conservative approach here, adding I2C_CLASS_SPD to many drivers that have no idea whether they can host SPD EEPROMs or not. This is to make sure that the eeprom driver doesn't stop probing buses where SPD EEPROMs or equivalent live. So, bus driver maintainers and users should feel free to remove the SPD class from drivers those buses never have SPD EEPROMs or they don't want the eeprom driver to bind to them. Likewise, feel free to add the SPD class to any bus driver I might have missed. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Fix platform driver hotplug/coldplugKay Sievers1-0/+3
Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable I2C platform drivers, to allow module auto loading. [ db: add some more drivers ] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Replace remaining __FUNCTION__ occurrencesHarvey Harrison1-2/+2
__FUNCTION__ is gcc-specific, use __func__. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-02-24i2c: Storage class should be before const qualifierTobias Klauser1-2/+2
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-18Add missing newlines to some uses of dev_<level> messagesJoe Perches1-4/+4
Found these while looking at printk uses. Add missing newlines to dev_<level> uses Add missing KERN_<level> prefixes to multiline dev_<level>s Fixed a wierd->weird spelling typo Added a newline to a printk Signed-off-by: Joe Perches <joe@perches.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Roland Dreier <rolandd@cisco.com> Cc: Tilman Schmidt <tilman@imap.cc> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Greg KH <greg@kroah.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: James Smart <James.Smart@Emulex.Com> Cc: Andrew Vasquez <andrew.vasquez@qlogic.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17parse error, drivers/i2c/busses/i2c-pmcmsp.cYoann Padioleau1-1/+1
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-12i2c: New PMC MSP71xx TWI bus driverMarc St-Jean1-0/+653
Add TWI driver for the PMC-Sierra MSP71xx devices. [JD: Drop the probe hack, don't set algo_data as we never use it, return the right error code if the driver registration fails.] Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
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