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path: root/drivers/spi/spi-omap-100k.c
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2021-07-14spi: omap-100k: Fix the length judgment problemTian Tao1-1/+1
[ Upstream commit e7a1a3abea373e41ba7dfe0fbc93cb79b6a3a529 ] word_len should be checked in the omap1_spi100k_setup_transfer function to see if it exceeds 32. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Link: https://lore.kernel.org/r/1619695248-39045-1-git-send-email-tiantao6@hisilicon.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-12spi: omap-100k: Fix reference leak to masterWei Yongjun1-3/+3
[ Upstream commit a23faea76d4cf5f75decb574491e66f9ecd707e7 ] Call spi_master_get() holds the reference count to master device, thus we need an additional spi_master_put() call to reduce the reference count, otherwise we will leak a reference to master. This commit fix it by removing the unnecessary spi_master_get(). Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20210409082954.2906933-1-weiyongjun1@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-07-14spi: omap-100k: Drop includeLinus Walleij1-1/+0
The OMAP-100k driver includes <linux/gpio.h> but does not use any symbols from it, so drop the include. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200714073357.34879-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-15spi: use new `spi_transfer_delay_exec` helper where straightforwardAlexandru Ardelean1-2/+1
For many places in the spi drivers, using the new `spi_transfer_delay` helper is straightforward. It's just replacing: ``` if (t->delay_usecs) udelay(t->delay_usecs); ``` with `spi_transfer_delay(t)` which handles both `delay_usecs` and the new `delay` field. This change replaces in all places (in the spi drivers) where this change is simple. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20190926105147.7839-10-alexandru.ardelean@analog.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-09spi: omap-100k: Remove set but not used variable 'dataH'zhengbin1-2/+2
Fixes gcc '-Wunused-but-set-variable' warning: drivers/spi/spi-omap-100k.c: In function spi100k_read_data: drivers/spi/spi-omap-100k.c:140:6: warning: variable dataH set but not used [-Wunused-but-set-variable] It is not used since commit 35c9049b2704 ("Add OMAP spi100k driver") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: zhengbin <zhengbin13@huawei.com> Link: https://lore.kernel.org/r/1570581437-104549-2-git-send-email-zhengbin13@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner1-10/+1
Based on 3 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 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 [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-17spi: omap-100k: Rely on validations done by spi coreJarkko Nikula1-18/+8
SPI core validates both bits_per_word and speed_hz transfer parameters and defaults to spi->bits_per_word and spi->max_speed_hz in case these per transfer parameters are not set. This allows to remove a few if statements around per transfer bits_per_word and speed_hz tests as they evaluate always to true. Also defaulting word_len to 8 is needless since spi_setup() has already made sure spi->bits_per_word is 8 in case it is not set. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-17spi/omap100k: Convert to runtime PMMark Brown1-24/+77
Currently the omap100k driver uses prepare and unprepare transfer hardware to enable and disable clocks for the IP block. Since these functions are called along with runtime PM and end up duplicating its functionality in a less flexible fashion we are trying to phase them out so convert this driver to do runtime PM instead. While doing so add missing error handling and remove a redundant NULL assignment. Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-22spi: Remove FSF mailing addressesJarkko Nikula1-5/+0
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20spi: 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>
2014-08-17spi: omap-100k: Remove unused definitionsNick Krause1-4/+0
Remove unused definition which cause the following warnings drivers/spi/spi-omap-100k.c:73:0: warning: "WRITE" redefined [enabled by default] include/linux/fs.h:193:0: note: this is the location of the previous definition drivers/spi/spi-omap-100k.c:74:0: warning: "READ" redefined [enabled by default] include/linux/fs.h:192:0: note: this is the location of the previous definition Signed-off-by: Nick Krause <xerofoiffy@gmail.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-06spi: omap-100k: Remove unnecessary platform_set_drvdata()Alexander Shiyan1-2/+0
Drop call to platform_set_drvdata() as driver data is not used anywhere in the driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-29spi: omap-100k: Fix memory leakAxel Lin1-1/+1
The memory allocated for cs is not freed anywhere. Convert to use devm_kzalloc to fix the memory leak. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-05spi: omap-100k: fix spacing coding style issueJingoo Han1-17/+19
Fix the following checkpatch issues. ERROR: space prohibited after that open parenthesis '(' ERROR: space required before the open parenthesis '(' ERROR: trailing statements should be on next line ERROR: space required after that ',' (ctx:VxV) ERROR: spaces required around that '-=' (ctx:VxV) WARNING: sizeof *cs should be sizeof(*cs) Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-10spi: omap-100k: Remove unused fields from struct omap1_spi100kAxel Lin1-7/+0
Both *master and state are not really used, remove them. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-10spi: omap-100k: Remove unused pointer in omap1_spi100k_txrx_pio()Christian Engelmayer1-2/+0
Remove unused devdata pointer 'spi100k' in function omap1_spi100k_txrx_pio(). Detected by Coverity: CID 1077869. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-10spi: omap-100k: Remove unused MOD_REG_BIT macroAxel Lin1-7/+0
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-02spi: omap-100k: remove pointless _remove functionMichal Nazarewicz1-20/+0
Commit [8074cf06: use devm_spi_register_master()] removed the last bit of omap1_spi100k_remove function that had side effects. After call to spi_unregister_master was removed, the function consisted of: 2. call to platform_get_drvdata whose return value was only used in: 2. call to spi_master_get_devdata whose return value was not used, 3. an if statement checking if zero was not zero, and 4. call to platform_get_resource whose return value was not used. Ah, yes, and of course, final return 0. ;) Since omap1_spi100k_remove no longer does anything, it can be safely removed. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-26spi: omap-100k: use devm_spi_register_master()Jingoo Han1-3/+1
Use devm_spi_register_master() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-01Merge remote-tracking branch 'spi/topic/pdata' into spi-nextMark Brown1-1/+1
2013-08-29spi: use dev_get_platdata()Jingoo Han1-1/+1
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15spi/omap-100k: Convert to module_platform_driver()Mark Brown1-13/+2
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15spi/omap-100k: Prepare and unprepare clocksMark Brown1-8/+8
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15spi/omap-100k: Convert to devm_clk_get()Mark Brown1-13/+6
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15spi/omap-100k: Convert to use core message queue implementationMark Brown1-86/+17
Saves some code duplication and gets us the benefits of any improvements in the core code. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15spi/omap-100k: Factor message transfer function out of work queueMark Brown1-65/+68
In preparation for removing the custom workqueue. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15spi/omap-100k: Use core functionality to check validity of transfersMark Brown1-30/+2
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15spi/omap-100k: Remove empty reset functionMark Brown1-8/+0
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-06-26Merge remote-tracking branch 'spi/topic/pdata' into spi-nextMark Brown1-2/+2
2013-05-29spi: convert drivers to use bits_per_word_maskStephen Warren1-10/+2
Fill in the recently added spi_master.bits_per_word_mask field in as many drivers as possible. Make related cleanups, such as removing any redundant error-checking, or empty setup callbacks. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-05-23spi: use platform_{get,set}_drvdata()Jingoo Han1-2/+2
Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-05spi: Remove erroneous __init, __exit and __exit_p() references in driversGrant Likely1-3/+3
Some of the spi driver module remove hooks were annotated with __exit and referenced with __exit_p(). Presumably these were supposed to be __devinit, __devexit and __devexit_p() since __init/__exit for a probe/remove hook has never been correct. They also got missed during the big __devinit/__devexit purge since they didn't match the pattern. Remove then now to be rid of it. v2: purge __init also Reported-by: Arnd Bergmann <arnd@arndb.de> [Arnd set a patch cleaning up one, and then I found more] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-07spi: Remove HOTPLUG section attributesGrant Likely1-1/+1
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. Bill Pemberton has done most of the legwork on this series. I've used his script to purge the attributes from the drivers/gpio tree. Reported-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-09-22SPI: OMAP: remove unnecessary includes of plat/clock.hPaul Walmsley1-2/+0
Remove unnecessary includes of plat/clock.h from the OMAP SPI controller drivers. These need to be removed to build multi-subarch ARM kernels which include these drivers. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Grant Likely <grant.likely@secretlab.ca> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-06spi: reorganize driversGrant Likely1-0/+637
Sort the SPI makefile and enforce the naming convention spi_*.c for spi drivers. This change also rolls the contents of atmel_spi.h into the .c file since there is only one user of that particular include file. v2: - Use 'spi-' prefix instead of 'spi_' to match what seems to be be the predominant pattern for subsystem prefixes. - Clean up filenames in Kconfig and header comment blocks Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@linaro.org>
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