- 08 1月, 2014 1 次提交
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由 Richard Genoud 提交于
The only speed available was max_speed (the maximum speed declared for a device). This patch adds the support for spi_tranfer->speed_hz parameter. We can now set a different speed for each spi message. Signed-off-by: NRichard Genoud <richard.genoud@gmail.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 04 12月, 2013 1 次提交
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由 Jingoo Han 提交于
Use devm_*() functions to make cleanup paths simpler. Signed-off-by: NJingoo Han <jg1.han@samsung.com> Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 23 10月, 2013 1 次提交
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由 Wei Yongjun 提交于
In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 17 10月, 2013 2 次提交
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由 Mark Brown 提交于
This simplifies error handling. Signed-off-by: NMark Brown <broonie@linaro.org>
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由 Jarkko Nikula 提交于
User-visible strings are more difficult to grep from sources if they are separated to multiple source lines. This is worse than over 80 columns long line code style violation. Fix this by making those to single-line strings or by breaking them between variables. While at there, convert if (printk_ratelimit()) dev_warn() to use dev_warn_ratelimited in spi-pxa2xx.c. Signed-off-by: NJarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 15 10月, 2013 1 次提交
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由 Jingoo Han 提交于
Fix the following checkpatch warning. WARNING: quoted string split across lines Signed-off-by: NJingoo Han <jg1.han@samsung.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 07 10月, 2013 1 次提交
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由 Sachin Kamat 提交于
'irq' was not released when clk_prepare_enable failed. Fix it. Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 17 9月, 2013 2 次提交
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由 Sachin Kamat 提交于
Fixes the following types of checkpatch errors and warning: ERROR: space required after that ',' (ctx:VxV) WARNING: sizeof *as should be sizeof(*as) Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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由 Jingoo Han 提交于
Instead of using legacy suspend/resume methods, using newer dev_pm_ops structure allows better control over power management. Also, duplicated 'return' is removed from atmel_spi_resume(). Signed-off-by: NJingoo Han <jg1.han@samsung.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 11 9月, 2013 1 次提交
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由 Sachin Kamat 提交于
'irq' was not released when clk_prepare_enable failed. Fix it. Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 01 8月, 2013 1 次提交
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由 Emil Goode 提交于
This patch fixes the following sparse warnings. dma_addr_t can be either u32 or u64 so we should cast to the largest type and use the format specifier %llx. drivers/spi/spi-atmel.c: In function ‘atmel_spi_next_xfer_dma_submit’: drivers/spi/spi-atmel.c:631:2: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 7 has type ‘dma_addr_t’ [-Wformat] drivers/spi/spi-atmel.c:631:2: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 9 has type ‘dma_addr_t’ [-Wformat] drivers/spi/spi-atmel.c: In function ‘atmel_spi_pdc_next_xfer’: drivers/spi/spi-atmel.c:734:3: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 7 has type ‘dma_addr_t’ [-Wformat] drivers/spi/spi-atmel.c:734:3: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 9 has type ‘dma_addr_t’ [-Wformat] drivers/spi/spi-atmel.c:773:3: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 7 has type ‘dma_addr_t’ [-Wformat] drivers/spi/spi-atmel.c:773:3: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 9 has type ‘dma_addr_t’ [-Wformat] Signed-off-by: NEmil Goode <emilgoode@gmail.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 29 7月, 2013 1 次提交
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由 Mark Brown 提交于
Let checkers like sparse know that the locking imbalances are intentional in these functions. Signed-off-by: NMark Brown <broonie@linaro.org>
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- 17 7月, 2013 1 次提交
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由 Boris BREZILLON 提交于
Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to avoid common clk framework warnings. Signed-off-by: NBoris BREZILLON <b.brezillon@overkiz.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 03 6月, 2013 1 次提交
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由 Richard Genoud 提交于
Use generic DMA DT helper. Platforms booting with or without DT populated are both supported. Based on Ludovic Desroches <ludovic.desroches@atmel.com> patchset "ARM: at91: move to generic DMA device tree binding" Signed-off-by: NRichard Genoud <richard.genoud@gmail.com> Acked-by: NLudovic Desroches <ludovic.desroches@gmail.com> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 30 5月, 2013 1 次提交
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由 Stephen Warren 提交于
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: NStephen Warren <swarren@wwwdotorg.org> Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 02 5月, 2013 1 次提交
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由 Richard Genoud 提交于
Fix using PIO transfer mode only support 8 bits transfer, doesn't support 16 bits. Signed-off-by: NRichard Genoud <richard.genoud@gmail.com> [wenyou.yang@atmel.com: submit the patch] Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 24 4月, 2013 3 次提交
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由 Nicolas Ferre 提交于
Add dmaengine support. Using "has_dma_support" member of struct is used to select the transfer mode: dmaengine or pdc. For the dmaengine transfer mode, it supports both 8 bits and 16 bits transfer. For the dmaengine transfer mode, if it fails to config dmaengine, or if the message length is less than 16 bytes, it will use the PIO transfer mode. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> [wenyou.yang@atmel.com: using "has_dma_support" to select dmaengine as the spi xfer mode] [wenyou.yang@atmel.com: fix DMA: OOPS if buffer > 4096 bytes] [wenyou.yang@atmel.com: submit the patch] Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com> Signed-off-by: NRichard Genoud <richard.genoud@gmail.com> [richard.genoud@gmail.com: update with dmaengine interface] [richard.genoud@gmail.com: fix __init/__devinit sections mismatch] [richard.genoud@gmail.com: adapt to slave_config changes] [richard.genoud@gmail.com: add support t0 16 bits transfer] Tested-by: NRichard Genoud <richard.genoud@gmail.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Nicolas Ferre 提交于
Will allow to drop the lock during DMA operations. Replacing non-irqsave versions with irqsave versions of the lock to make it correct in both pdc and dmaengine transfer mode Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> [wenyou.yang@atmel.com: submit the patch] Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com> Tested-by: NRichard Genoud <richard.genoud@gmail.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Nicolas Ferre 提交于
Needed for future use with dmaengine enabled driver. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> [wenyou.yang@atmel.com: submit the patch] Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com> Tested-by: NRichard Genoud <richard.genoud@gmail.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 07 4月, 2013 1 次提交
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由 Joachim Eastwood 提交于
atmel_spi_transfer() would check speed_hz and fail if the speed was changed in the transfer. After commit "spi: make sure all transfer has proper speed set" this would happen on all transfers. Change speed_hz check to only fail if a lower speed than max is requested. Signed-off-by: NJoachim Eastwood <manabian@gmail.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 01 4月, 2013 4 次提交
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由 Nicolas Ferre 提交于
The status of transfer is stored in controller data structure so that it can be used not only by atmel_spi_msg_done() function. This will be useful for upcoming dmaengine enabled driver. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Nicolas Ferre 提交于
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Wenyou Yang 提交于
Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Wenyou Yang 提交于
The "has_dma_support" needed for future use with dmaengine driver. [Fixed some unneded ternery operators -- broonie] Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 05 2月, 2013 1 次提交
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由 Grant Likely 提交于
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: NArnd Bergmann <arnd@arndb.de> [Arnd set a patch cleaning up one, and then I found more] Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 18 12月, 2012 1 次提交
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Use the newly introduce cs-gpios dt support on atmel. We do not use the hardware cs as it's wired and has bugs and limitations. As the controller believes that only active-low devices/systems exists. Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 08 12月, 2012 1 次提交
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由 Grant Likely 提交于
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: NBill Pemberton <wfp5p@virginia.edu> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 06 11月, 2012 1 次提交
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Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
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- 09 11月, 2011 1 次提交
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Commit 940ab889 "drivercore: Add helper macro for platform_driver boilerplate" converted this driver to use module_platform_driver, but due to the use of platform_driver_probe(), this resulted in the call to atmel_spi_probe being lost. Place the call to this function into the driver structure. fix section missmatch atmel_spi_probe is marked __init where it's supposed to be __devinit atmel_spi_remove is marked __exit where it's supposed to be __devexit Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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- 25 10月, 2011 1 次提交
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由 Grant Likely 提交于
For simple modules that contain a single platform_driver without any additional setup code then ends up being a block of duplicated boilerplate. This patch adds a new macro, module_platform_driver(), which replaces the module_init()/module_exit() registrations with template functions. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de> Reviewed-by: NMagnus Damm <magnus.damm@gmail.com> Reviewed-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
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- 08 8月, 2011 1 次提交
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由 Russell King 提交于
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 06 6月, 2011 1 次提交
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由 Grant Likely 提交于
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: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NLinus Walleij <linus.walleij@linaro.org>
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- 19 5月, 2011 1 次提交
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由 Jean Delvare 提交于
Haavard's e-mail address at Atmel is no longer valid. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NHavard Skinnemoen <hskinnemoen@gmail.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 01 12月, 2010 1 次提交
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passing argument 2 of 'dma_map_single' discards qualifiers from pointer target type Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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- 02 11月, 2010 1 次提交
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由 Uwe Kleine-König 提交于
"gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 16 10月, 2010 1 次提交
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由 Matthias Brugger 提交于
This patches a typo in the debug message. Signed-off-by: NMatthias Brugger <mensch0815@gmail.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 14 10月, 2010 1 次提交
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由 Matthias Brugger 提交于
bits_per_word option in spi_transfer are allowed if it does not change the csr register. This is necessary for the driver in drivers/staging/iio/adis16260_core.c, as it uses this option. Signed-off-by: NMatthias Brugger <mensch0815@gmail.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 17 12月, 2009 2 次提交
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由 hartleys 提交于
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Ben Nizette 提交于
If len > BUFFER_LEN and !xfer->rx_buf we end up calculating the tx buffer address as *tx_dma = xfer->tx_dma + xfer->len - BUFFER_SIZE; which is constant; i.e. we just send the last BUFFER_SIZE data over again until we've reached the right number of bytes. This patch gets around this by using the /requested/ length when calculating addresses. Note there's no way len != *plen when we calculate the rx buffer address but conceptually we should be using *plen and I don't want someone to come through later, see the calculations for rx and tx are different and "clean up" back to what we had. Signed-off-by: NBen Nizette <bn@niasdigital.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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