24778be20 "spi: convert drivers to use bits_per_word_mask"
removed the "default" statement in the spi_sirfsoc_setup_transfer
switch, causing a new warning:
drivers/spi/spi-sirf.c: In function 'spi_sirfsoc_setup_transfer':
arch/arm/include/asm/io.h:90:2: warning: 'rxfifo_ctrl' may be used uninitialized in this function [-Wmaybe-uninitialized]
asm volatile("str %1, %0"
^
drivers/spi/spi-sirf.c:364:19: note: 'rxfifo_ctrl' was declared here
u32 txfifo_ctrl, rxfifo_ctrl;
^
The compiler has correctly identified that this case may happen,
but since we know that things are horribly broken if bits_per_word
is ever something other than the values we tested, calling BUG()
is an appropriate action and tells the compiler that execution
will not continue afterwards.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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>
This fixes building the spi-sirf driver as a loadable module, which uses
an incorrect MODULE_DEVICE_TABLE, by changing the reference to the
correct symbol.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers all
over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
If you need me to provide a merged tree to handle these resolutions,
please let me know.
Other than those patches, there's not much here, some minor fixes and
updates.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg Kroah-Hartman:
"Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers
all over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
Other than those patches, there's not much here, some minor fixes and
updates"
Fix up trivial conflicts
* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
base: memory: fix soft/hard_offline_page permissions
drivercore: Fix ordering between deferred_probe and exiting initcalls
backlight: fix class_find_device() arguments
TTY: mark tty_get_device call with the proper const values
driver-core: constify data for class_find_device()
firmware: Ignore abort check when no user-helper is used
firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
firmware: Make user-mode helper optional
firmware: Refactoring for splitting user-mode helper code
Driver core: treat unregistered bus_types as having no devices
watchdog: Convert to devm_ioremap_resource()
thermal: Convert to devm_ioremap_resource()
spi: Convert to devm_ioremap_resource()
power: Convert to devm_ioremap_resource()
mtd: Convert to devm_ioremap_resource()
mmc: Convert to devm_ioremap_resource()
mfd: Convert to devm_ioremap_resource()
media: Convert to devm_ioremap_resource()
iommu: Convert to devm_ioremap_resource()
drm: Convert to devm_ioremap_resource()
...
the driver is also compatible with SiRFmarco except SiRFprimaII,
so simply add "sirf,marco-spi" to OF match table.
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare
calls as required by common clock framework.
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
The spi core make sure that each transfer structure have the proper
setting for bits_per_word before calling low level transfer APIs.
Hence it is no more require to check again in low level driver for
this field whether this is set correct or not. Removing such code
from low level driver.
The txx9 change also removes a test for bits_per_word set to 0, and
forcing it to 8 in that case. This can also be removed now since
spi_setup() ensures spi->bits_per_word is not zero.
if (!spi->bits_per_word)
spi->bits_per_word = 8;
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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>
Fix the compiling errors:
drivers/spi/spi-sirf.c: In function 'spi_sirfsoc_probe':
drivers/spi/spi-sirf.c:563: error: implicit declaration of function 'pinmux_get'
drivers/spi/spi-sirf.c:563: warning: assignment makes pointer from integer without a cast
drivers/spi/spi-sirf.c:568: error: implicit declaration of function 'pinmux_enable'
drivers/spi/spi-sirf.c:602: error: implicit declaration of function 'pinmux_disable'
drivers/spi/spi-sirf.c:603: error: implicit declaration of function 'pinmux_put'
make[3]: *** [drivers/spi/spi-sirf.o] Error 1
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CSR SiRFprimaII has two SPIs (SPI0 and SPI1). Features:
* Master and slave modes
* 8-/12-/16-/32-bit data unit
* 256 bytes receive data FIFO and 256 bytes transmit data FIFO
* Multi-unit frame
* Configurable SPI_EN (chip select pin) active state
* Configurable SPI_CLK polarity
* Configurable SPI_CLK phase
* Configurable MSB/LSB first
Signed-off-by: Zhiwu Song <zhiwu.song@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
