| e4745fef5595df7405ea24d6b21ba0e65332bb8e |
|
28-Mar-2014 |
Axel Lin <axel.lin@ingics.com> |
spi: Remove unneeded include of linux/workqueue.h
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| fb534f10755954827a4b71b9a21f9b5fa93707a9 |
|
21-Mar-2014 |
Axel Lin <axel.lin@ingics.com> |
spi: nuc900: Fix setting multiple bits settings in register
The correct way to set multiple bits settings is always clear these
bit fields before set new settings.
Current code does not cause problem because the reset value of these
bit fields are 0, and these settings only set once during probe.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| 8120ff8c48396a75cc9e5fa26a7a476479003fab |
|
08-Feb-2014 |
Axel Lin <axel.lin@ingics.com> |
spi: nuc900: Remove unused fields from struct nuc900_spi
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| f7db1588d6028c97c098bb6445eaabc56a25fed8 |
|
20-Jan-2014 |
Axel Lin <axel.lin@ingics.com> |
spi: nuc900: Set SPI_LSB_FIRST for master->mode_bits if hw->pdata->lsb is true
Otherwise, spi_setup() fails with unsupported mode bits message.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
|
| 3a44623d5e1404b29786f1afd225d1aa04a4ae90 |
|
21-Jan-2014 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
spi: delete non-required instances of include <linux/init.h>
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>
|
| fe2ece4a933138bb1dcb66e9669a48e7c9215717 |
|
20-Dec-2013 |
Wei Yongjun <yongjun_wei@trendmicro.com.cn> |
spi: nuc900: remove redundant return value check of platform_get_resource()
Remove unneeded error handling on the result of a call
to platform_get_resource() when the value is passed to
devm_ioremap_resource().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| 7519459da294680bbab1bd20a4e378d83a1c6d45 |
|
09-Dec-2013 |
Jingoo Han <jg1.han@samsung.com> |
spi: nuc900: Use devm_*() functions
Use devm_*() functions to make cleanup paths simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| 702a4879ec337463f858c8ab467482cce260bf18 |
|
10-Sep-2013 |
Axel Lin <axel.lin@ingics.com> |
spi: bitbang: Let spi_bitbang_start() take a reference to master
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>
|
| 94c69f765f1b4a658d96905ec59928e3e3e07e6a |
|
10-Sep-2013 |
Axel Lin <axel.lin@ingics.com> |
spi: bitbang: Let spi_bitbang_start() take a reference to master
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>
|
| 8074cf063e410a2c0cf1704c3b31002e21f5df7c |
|
30-Jul-2013 |
Jingoo Han <jg1.han@samsung.com> |
spi: use dev_get_platdata()
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>
|
| 044d0bb620be2ecb02c7f8c2d4b547f7b7101811 |
|
15-Aug-2013 |
Axel Lin <axel.lin@ingics.com> |
spi: nuc900: Fix mode_bits setting
The code in nuc900_slave_select() supports handling SPI_CS_HIGH.
Thus set SPI_CS_HIGH bit in master->mode_bits to make it work.
Otherwise, spi_setup() will return unsupported mode bits error message if
SPI_CS_HIGH is set in the mode field of struct spi_device.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| 30af9b558a56200bda5febd140d5b826581d1f15 |
|
09-Aug-2013 |
Mark Brown <broonie@linaro.org> |
spi/bitbang: Drop empty setup() functions
Now that the bitbang core does not require a setup() function we can
drop the check in the altera, nuc900 and xilinx drivers.
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| 103ccee4ef1595468cf79c93068d253c7f2d85a8 |
|
10-Jul-2013 |
Stephen Warren <swarren@nvidia.com> |
spi: revert master->setup function removal for altera and nuc900
Commit 24778be "spi: convert drivers to use bits_per_word_mask" removed
what appeared to be redundant code from many drivers. However, it
appears that in the spi-bitbang case, these functions are required by
the spi-bitbang core, even if they don't do anything. Restore them.
For 3.12, the spi-bitbang core should be adjusted not to require these
callbacks to exist if they don't need to do anything.
This is the equivalent of Michal Simek's patch "spi/xilinx: Revert
master->setup function removal", applied to other affected drivers.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| 26cb3bb14950ee017f311f3bf1ae82f95ee0be64 |
|
31-May-2013 |
Sachin Kamat <sachin.kamat@linaro.org> |
spi: spi-nuc900: Remove redundant platform_set_drvdata()
Setting platform data to NULL is not necessary.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
|
| 24778be20f87d5aadb19624fc768b3159fa43efc |
|
22-May-2013 |
Stephen Warren <swarren@wwwdotorg.org> |
spi: convert drivers to use bits_per_word_mask
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>
|
| fd4a319bc933ae93e68935b21924a9ca4ba2d060 |
|
07-Dec-2012 |
Grant Likely <grant.likely@secretlab.ca> |
spi: Remove HOTPLUG section attributes
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>
|
| 54ecf4f05637183ffd0ac98f906e45e271030a55 |
|
24-Aug-2012 |
Arnd Bergmann <arnd@arndb.de> |
ARM: w90x900: move platform_data definitions
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This moves such data out of the w90x900 include directories
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: "Ben Dooks (embedded platforms)" <ben-linux@fluff.org>
Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
|
| 90bbf4fdf2dc64aa7c20a93a9744c56a566baf26 |
|
01-Feb-2012 |
Tobias Klauser <tklauser@distanz.ch> |
spi/nuc900: Remove unnecessary memset of struct nuc900_spi
The memory allocated using kzalloc by spi_alloc_master so it doesn't
need to be set to 0 again.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
|
| 00d2952caa6b0b2cd113494ae39f08c4663f371b |
|
24-Nov-2011 |
Axel Lin <axel.lin@gmail.com> |
spi/nuc900: Include linux/module.h
Include linux/module.h to fix below build error:
CC drivers/spi/spi-nuc900.o
drivers/spi/spi-nuc900.c:484: error: 'THIS_MODULE' undeclared here (not in a function)
drivers/spi/spi-nuc900.c:489: error: expected declaration specifiers or '...' before string constant
drivers/spi/spi-nuc900.c:489: warning: data definition has no type or storage class
drivers/spi/spi-nuc900.c:489: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR'
drivers/spi/spi-nuc900.c:489: warning: function declaration isn't a prototype
drivers/spi/spi-nuc900.c:490: error: expected declaration specifiers or '...' before string constant
drivers/spi/spi-nuc900.c:490: warning: data definition has no type or storage class
drivers/spi/spi-nuc900.c:490: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION'
drivers/spi/spi-nuc900.c:490: warning: function declaration isn't a prototype
drivers/spi/spi-nuc900.c:491: error: expected declaration specifiers or '...' before string constant
drivers/spi/spi-nuc900.c:491: warning: data definition has no type or storage class
drivers/spi/spi-nuc900.c:491: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE'
drivers/spi/spi-nuc900.c:491: warning: function declaration isn't a prototype
drivers/spi/spi-nuc900.c:492: error: expected declaration specifiers or '...' before string constant
drivers/spi/spi-nuc900.c:492: warning: data definition has no type or storage class
drivers/spi/spi-nuc900.c:492: warning: type defaults to 'int' in declaration of 'MODULE_ALIAS'
drivers/spi/spi-nuc900.c:492: warning: function declaration isn't a prototype
make[2]: *** [drivers/spi/spi-nuc900.o] Error 1
make[1]: *** [drivers/spi] Error 2
make: *** [drivers] Error 2
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
|
| 97371fa99c1900a84a5220639edd726b35d73931 |
|
25-Nov-2011 |
Axel Lin <axel.lin@gmail.com> |
ARM: 7175/1: add subname parameter to mfp_set_groupg callers
commit 798681bf "ARM: 7158/1: add new MFP implement for NUC900"
adds subname parameter for mfp_set_groupg.
Thus add subname parameter to the callers.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Wan Zongshun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| 940ab88962bc1aff3273a8356d64577a6e386736 |
|
05-Oct-2011 |
Grant Likely <grant.likely@secretlab.ca> |
drivercore: Add helper macro for platform_driver boilerplate
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>
|
| ca632f556697d45d67ed5cada7cedf3ddfe0db4b |
|
06-Jun-2011 |
Grant Likely <grant.likely@secretlab.ca> |
spi: reorganize drivers
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>
|