| Age | Commit message (Collapse) | Author | Files | Lines |
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Sort the headers in alphabetic order in order to ease
the maintenance for this part.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240902103203.2476576-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The commit had been applied twice as
0f245463b01e ("spi: ppc4xx: handle irq_of_parse_and_map() errors")
and
f1011ba20b83 ("spi: ppc4xx: handle irq_of_parse_and_map() errors")
This reverts commit f1011ba20b83da3ee70dcb4a6d9d282a718916fa.
Fixes: f1011ba20b83 ("spi: ppc4xx: handle irq_of_parse_and_map() errors")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240902102853.2476165-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The header file linux/platform_device.h is included
twice. Remove the last one.
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Link: https://patch.msgid.link/20240830075800.3541646-1-lihongbo22@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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0 is incorrect error code when failed to parse and map IRQ.
Replace OF specific old API for IRQ retrieval with a generic
one to fix this issue.
Fixes: 0f245463b01e ("spi: ppc4xx: handle irq_of_parse_and_map() errors")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240814144525.2648450-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Zero and negative number is not a valid IRQ for in-kernel code and the
irq_of_parse_and_map() function returns zero on error. So this check for
valid IRQs should only accept values > 0.
Fixes: 44dab88e7cc9 ("spi: add spi_ppc4xx driver")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://patch.msgid.link/20240722141822.1052370-1-make24@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
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Zero and negative number is not a valid IRQ for in-kernel code and the
irq_of_parse_and_map() function returns zero on error. So this check for
valid IRQs should only accept values > 0.
Fixes: 44dab88e7cc9 ("spi: add spi_ppc4xx driver")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://patch.msgid.link/20240724084047.1506084-1-make24@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"This release sees some exciting changes from David Lechner which
implements some optimisations that have been talked about for a long
time which allows client drivers to pre-prepare SPI messages for
repeated or low latency use. This lets us move work out of latency
sensitive paths and avoid repeating work for frequently performed
operations. As well as being useful in itself this will also be used
in future to allow controllers to directly trigger SPI operations (eg,
from interrupts).
Otherwise this release has mostly been focused on cleanups, plus a
couple of new devices:
- Support for pre-optimising messages
- A big set of updates from Uwe Kleine-König moving drivers to use
APIs with more modern terminology for controllers
- Major overhaul of the s3c64xx driver
- Support for Google GS101 and Samsung Exynos850"
* tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (122 commits)
spi: Introduce SPI_INVALID_CS and is_valid_cs()
spi: Fix types of the last chip select storage variables
spi: Consistently use BIT for cs_index_mask
spi: Exctract spi_dev_check_cs() helper
spi: Exctract spi_set_all_cs_unused() helper
spi: s3c64xx: switch exynos850 to new port config data
spi: s3c64xx: switch gs101 to new port config data
spi: s3c64xx: deprecate fifo_lvl_mask, rx_lvl_offset and port_id
spi: s3c64xx: get rid of the OF alias ID dependency
spi: s3c64xx: introduce s3c64xx_spi_set_port_id()
spi: s3c64xx: let the SPI core determine the bus number
spi: s3c64xx: allow FIFO depth to be determined from the compatible
spi: s3c64xx: retrieve the FIFO depth from the device tree
spi: s3c64xx: determine the fifo depth only once
spi: s3c64xx: allow full FIFO masks
spi: s3c64xx: define a magic value
spi: dt-bindings: introduce FIFO depth properties
spi: axi-spi-engine: use struct_size() macro
spi: axi-spi-engine: use __counted_by() attribute
spi: axi-spi-engine: remove p from struct spi_engine_message_state
...
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I failed to adapt this driver because it's not enabled in a powerpc
allmodconfig build and also wasn't hit by my grep expertise. Fix
accordingly.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402100815.XQXw9XCF-lkp@intel.com/
Fixes: 2259233110d9 ("spi: bitbang: Follow renaming of SPI "master" to "controller"")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://msgid.link/r/20240210164006.208149-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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One patch of a series of three that was sent fixing issues with the
ppc4xx driver was targeted at -next, unfortunately it being sandwiched
between two others that targeted mainline tripped up my workflow and
caused it to get merged along with the others. The ppc4xx driver is
only buildable in very limited configurations so none of the CI catches
issues with it.
Fixes: de4af897ddf2 ("spi: ppc4xx: Fix fallout from rename in struct spi_bitbang")
Signed-off-by: Mark Brown <broonie@kernel.org>
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Since commit 24778be20f87 ("spi: convert drivers to use
bits_per_word_mask") the bits_per_word variable is only written to. The
check that was there before isn't needed any more as the spi core
ensures that only 8 bit transfers are used, so the variable can go away
together with all assignments to it.
Fixes: 24778be20f87 ("spi: convert drivers to use bits_per_word_mask")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240210164006.208149-8-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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I failed to adapt this driver because it's not enabled in a powerpc
allmodconfig build and also wasn't hit by my grep expertise. Fix
accordingly.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402100815.XQXw9XCF-lkp@intel.com/
Fixes: 2259233110d9 ("spi: bitbang: Follow renaming of SPI "master" to "controller"")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240210164006.208149-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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The driver uses several symbols declared in <linux/platform_device.h>,
e.g module_platform_driver(). Include this header explicitly now that
<linux/of_platform.h> doesn't include <linux/platform_device.h> any
more.
Fixes: ef175b29a242 ("of: Stop circularly including of_device.h and of_platform.h")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240210164006.208149-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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the driver currently fails to compile on 6.8-rc3 due to:
| spi-ppc4xx.c: In function ‘spi_ppc4xx_of_probe’:
| @346:36: error: invalid use of undefined type ‘struct platform_device’
| 346 | struct device_node *np = op->dev.of_node;
| | ^~
| ... (more similar errors)
it was working with 6.7. Looks like it only needed the include
and its compiling fine!
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Link: https://lore.kernel.org/r/3eb3f9c4407ba99d1cd275662081e46b9e839173.1707490664.git.chunkeey@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Change legacy name master to modern name host or controller.
No functional changed.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230818093154.1183529-7-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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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 (mostly) ignored
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.
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/20230303172041.2103336-55-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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Fix missing parenthesis of sizeof reported by checkpatch.pl:
WARNING: sizeof *pp should be sizeof(*pp).
The kernel coding style suggests thinking of sizeof as a function
and add parenthesis.
Signed-off-by: Zhiqi Song <songzhiqi1@huawei.com>
Link: https://lore.kernel.org/r/1621301902-64158-8-git-send-email-songzhiqi1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use SPI_MODE_X_MASK instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210510131217.49357-6-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Drop repeated words in spi-bcm2835aux.c
{are}
Drop repeated words in spi-dw-mmio.c
{the}
Drop repeated words in spi-geni-qcom.c
{our}
Drop repeated words in spi-pl022.c
{on}
Drop repeated words in spi-ppc4xx.c
{the}
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1620629903-15493-4-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Include the more general linux/io.h instead of asm/io.h
as checkpatch suggests.
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1620629903-15493-2-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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This converts the PPC4xx SPI driver to use GPIO descriptors.
The driver is already just picking some GPIOs from the device
tree so the conversion is pretty straight forward. However
this driver is looking form a pure "gpios" property rather
than the standard binding "cs-gpios" so we need to add a new
exception to the gpiolib OF parser to allow this for this
driver's compatibles.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20200714072226.26071-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Based on 2 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 version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus reuse the corresponding function "kcalloc".
This issue was detected by using the Coccinelle software.
* Replace the specification of a data type by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The script "checkpatch.pl" pointed information out like the following.
WARNING: quoted string split across lines
Thus fix the affected source code place.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
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chipselect (in the case of spi-gpio: spi_gpio_chipselect, which
calls gpiod_set_raw_value_cansleep) can sleep, so we should not
hold a spinlock while calling it from spi_bitbang_setup.
This issue was introduced by this commit, which converted spi-gpio
to cansleep variants:
d9dda5a191 "spi: spi-gpio: Use 'cansleep' variants to access GPIO"
Replacing the lock variable by a mutex fixes the issue: This is
safe as all instances where the lock is used are called from
contexts that can sleep.
Finally, update spi-ppc4xx and and spi-s3c24xx to use mutex
functions, as they directly hold the lock for similar purpose.
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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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>
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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>
Signed-off-by: Mark Brown <broonie@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DeviceTree updates for 3.13. This is a bit larger pull request than
usual for this cycle with lots of clean-up.
- Cross arch clean-up and consolidation of early DT scanning code.
- Clean-up and removal of arch prom.h headers. Makes arch specific
prom.h optional on all but Sparc.
- Addition of interrupts-extended property for devices connected to
multiple interrupt controllers.
- Refactoring of DT interrupt parsing code in preparation for
deferred probe of interrupts.
- ARM cpu and cpu topology bindings documentation.
- Various DT vendor binding documentation updates"
* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
powerpc: add missing explicit OF includes for ppc
dt/irq: add empty of_irq_count for !OF_IRQ
dt: disable self-tests for !OF_IRQ
of: irq: Fix interrupt-map entry matching
MIPS: Netlogic: replace early_init_devtree() call
of: Add Panasonic Corporation vendor prefix
of: Add Chunghwa Picture Tubes Ltd. vendor prefix
of: Add AU Optronics Corporation vendor prefix
of/irq: Fix potential buffer overflow
of/irq: Fix bug in interrupt parsing refactor.
of: set dma_mask to point to coherent_dma_mask
of: add vendor prefix for PHYTEC Messtechnik GmbH
DT: sort vendor-prefixes.txt
of: Add vendor prefix for Cadence
of: Add empty for_each_available_child_of_node() macro definition
arm/versatile: Fix versatile irq specifications.
of/irq: create interrupts-extended property
microblaze/pci: Drop PowerPC-ism from irq parsing
of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
of/irq: Use irq_of_parse_and_map()
...
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Commit b5b4bb3f6a11f9 (of: only include prom.h on sparc) removed implicit
includes of of_*.h headers by powerpc's prom.h. Some components were
missed in initial clean-up patch, so add the necessary includes to fix
powerpc builds.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ide@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
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Many drivers that use bitbang library have a leak on probe error paths.
This is because once a spi_master_get() call succeeds, we need an additional
spi_master_put() call to free the memory.
Fix this issue by moving the code taking a reference to master to
spi_bitbang_start(), so spi_bitbang_start() will take a reference to master on
success. With this change, the caller is responsible for calling
spi_bitbang_stop() to decrement the reference and spi_master_put() as
counterpart of spi_alloc_master() to prevent a memory leak.
So now we have below patten for drivers using bitbang library:
probe:
spi_alloc_master -> Init reference count to 1
spi_bitbang_start -> Increment reference count
remove:
spi_bitbang_stop -> Decrement reference count
spi_master_put -> Decrement reference count (reference count reaches 0)
Fixup all users accordingly.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Suggested-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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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>
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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>
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Pull device tree changes from Grant Likely:
"All around device tree changes destined for v3.8. Aside from the
documentation updates the highlights in this branch include:
- Kbuild changes for using CPP with .dts files
- locking fix from preempt_rt patchset
- include DT alias names in device uevent
- Selftest bugfixes and improvements
- New function for counting phandles stanzas in a property
- constify argument to of_node_full_name()
- Various bug fixes
This tree did also contain a commit to use platform_device_add instead
of open-coding the device add code, but it caused problems with amba
devices and needed to be reverted."
* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: (23 commits)
Revert "of: use platform_device_add"
kbuild: limit dtc+cpp include path
gpio: Make of_count_named_gpios() use new of_count_phandle_with_args()
of: Create function for counting number of phandles in a property
of/base: Clean up exit paths for of_parse_phandle_with_args()
of/selftest: Use selftest() macro throughout
of/selftest: Fix GPIOs selftest to cover the 7th case
of: fix recursive locking in of_get_next_available_child()
documentation/devicetree: Fix a typo in exynos-dw-mshc.txt
OF: convert devtree lock from rw_lock to raw spinlock
of/exynos_g2d: Add Bindings for exynos G2D driver
kbuild: create a rule to run the pre-processor on *.dts files
input: Extend matrix-keypad device tree binding
devicetree: Move NS2 LEDs binding into LEDs directory
of: use platform_device_add
powerpc/5200: Fix size to request_mem_region() call
documentation/devicetree: Fix typos
of: add 'const' to of_node_full_name parameter
of: Output devicetree alias names in uevent
DT: add vendor prefixes for Renesas and Toshiba
...
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This patch replaces the horribly coded of_count_named_gpios() with a
call to of_count_phandle_with_args() which is far more efficient. This
also changes the return value of of_gpio_count() & of_gpio_named_count()
from 'unsigned int' to 'int' so that it can return an error code. All
the users of that function are fixed up to correctly handle a negative
return value.
v2: Split GPIO portion into a separate patch
Tested-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
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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>
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Correct spelling typo in drivers/spi
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Trivial simplification. Instead of requiring spi master drivers to
always set the bus number (even when a dynamic number is desired),
this patch modifies spi_alloc_master() to initialize num_chipselect to
1 (because there will always be at least one CS) and bus_num to -1 for
dynamic allocation. This simplifies the code needed to be written for
drivers.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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The SPI device tree support code isn't shared by any other subsystem. It can
be moved into the core drivers/spi directory and the exported symbol can be
removed.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
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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: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Reviewed-by: Magnus Damm <magnus.damm@gmail.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
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Since commit [e58aa3d2: 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>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Done via coccinelle scripts like:
@@
struct resource *ptr;
@@
- ptr->end - ptr->start + 1
+ resource_size(ptr)
and some grep and typing.
Mostly uncompiled, no cross-compilers.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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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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