Merge tag 'iio-for-3.9d' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
"4th set of IIO new drivers cleanups and fixes for the 3.9 cycle
+ a new spi helper function.
1) Introduce spi_sync_transfer and use it within IIO. Originally
it was envisioned that this nice little boilerplate replacement
would go through the spi tree, but Grant Likely stated he'd
prefer we take it through IIO as the example usecases were all
in IIO (and are also in this pull request). Note that given
their may have been some unresolved elements related to the
coccinelle element of the patch, that has been stripped out
and will doubtlessly follow at a later date (along with
lots of other patches for drivers elsewhere in the tree).
2) New Invensense MPU6050 driver. This is stripped down to pretty
much the basics from the original submission with the intent
to build up all the fancy bits in an incremental (and hence
reviewable fashion). It's been through a good few revisions
so nice to finally merge this.
3) Change to iio_channel_get api to simplify device tree based
mappings. The actual mappings are currently under review.
4) Build fixes for !CONFIG_IIO_TRIGGER in the st_sensors driver.
This one snuck past during review and testing but got picked
up by Randy Dunlap in a randconfig build.
5) Some max1363 cleanups and enhancements.
6) Some comment fixes to make them coherent and comprehensible.
Partly a case of removing unused headers and partly a case
of ifdefing out the iio_trigger_ops structures. This has
come about because of an 'unusual' separation of code in this
driver.
Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Denis Ciocca <denis.ciocca@st.com>
This patch adds two new helper functions for handling this case. The first
helper function spi_message_init_with_transfers() takes a spi_message and an
array of spi_transfers. It will initialize the message and then call
spi_message_add_tail() for each transfer in the array. E.g. the following
The second function spi_sync_transfer() takes a SPI device and an array of
spi_transfers. It will allocate a new spi_message (on the stack) and add all
transfers in the array to the message. Finally it will call spi_sync() on the
message.
ret = spi_sync_transfer(spi, xfers, ARRAY_SIZE(xfers));
A coccinelle script to find such instances will follow.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Tommi Rantala [Fri, 8 Feb 2013 11:41:25 +0000 (13:41 +0200)]
staging: dgrp: use correct release op for /proc/dgrp/info
Trinity (the syscall fuzzer) discovered that reading /proc/dgrp/info was
leaking some memory. Fix by using the correct release op in info_proc_file_ops.
Ian Abbott [Thu, 7 Feb 2013 16:03:01 +0000 (16:03 +0000)]
staging: comedi: correct error message in comedi_alloc_subdevice_minor()
`comedi_alloc_subdevice_minors()` currently prints a message about
running out of minor numbers board device files if it runs out of minor
device numbers. Change it to complain about running out of minor device
numbers for subdevice files as these are in a different range, not
shared with those for board device files.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Thu, 7 Feb 2013 16:03:00 +0000 (16:03 +0000)]
staging: comedi: don't return minor from comedi_alloc_subdevice_minor()
`comedi_alloc_subdevice_minor()` currently returns the allocated minor
device number on success. This is not really of any interest to the
caller (in fact the return value is not even checked), so just return 0
on success. If the caller really needs to know the allocated minor
device number it can look in `s->minor`.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Thu, 7 Feb 2013 22:46:38 +0000 (23:46 +0100)]
staging/goldfish: Add MTD dependency to KCONFIG
If CONFIG_MTD is not set goldfish_nand fails to compile with the
following linker warnings:
drivers/built-in.o: In function `goldfish_nand_remove':
goldfish_nand.c:(.text+0x6e7d0e): undefined reference to
`mtd_device_unregister'
drivers/built-in.o: In function `goldfish_nand_erase':
goldfish_nand.c:(.text+0x6e8ba2): undefined reference to
`mtd_erase_callback'
drivers/built-in.o: In function `goldfish_nand_init_device':
goldfish_nand.c:(.text+0x6e8eba): undefined reference to
`mtd_device_parse_register'
Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Thu, 7 Feb 2013 22:57:07 +0000 (23:57 +0100)]
staging/goldfish: Use %zx for printing size_t variables
When building the driver, gcc emits the following warnings:
.../drivers/staging/goldfish/goldfish_nand.c:
In function 'goldfish_nand_read_oob':
goldfish_nand.c:159:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
goldfish_nand.c:159:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 4 has type 'size_t' [-Wformat]
In function 'goldfish_nand_write_oob':
goldfish_nand.c:191:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
goldfish_nand.c:191:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 4 has type 'size_t' [-Wformat]
In function 'goldfish_nand_read':
goldfish_nand.c:215:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
In function 'goldfish_nand_write':
goldfish_nand.c:239:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
-> As defined in the printk-formats use %zx for size_t variables
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit changed the comedi_pcmcia_enable() function so that it now
takes two arguments. The new argument is an optional (*conf_check)
function that is passed to pcmcia_loop_config().
This driver uses the default (*conf_check) in comedi_pcmcia.c so just
pass a NULL as the second arg.
Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_mio_cs: use pcmcia_request_irq()
Use pcmcia_request_irq() instead of request_irq() to request the
shared irq for the PCMCIA device. This allows the PCMCIA core to
clean up the registration in pcmcia_disable_device().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: comedi_pcmcia: allow drivers to use a custom conf_check()
Allow comedi pcmcia drivers to use a custom conf_check() when calling
comedi_pcmcia_enable() to enable the pcmcia device. If a conf_check()
is not passed the internal comedi_pcmcia_conf_check() will be used.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In comedi drivers typically *_attach_common() is used as the 'common'
part of the comedi_driver attach code for drivers that support various
bus types (ISA, PCI, etc.). This driver is specific to a USB device.
To avoid confusion when grepping, rename this function to something
more appropriate.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the 'pwm_bits' in the boardinfo to 'pwm_maxdata' so that the
calculation of s->maxdata can be removed. Also, change the type to
match the comedi_subdevice type. For aesthetic reasons, rename the
'pwm_chans' boardinfo and change its type also.
Remove the '0' values in the boardinfo.
Rename the (*insn_read) and (*insn_write) functions for the pwm
subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the 'cnt_bits' in the boardinfo to 'cnt_maxdata' so that the
calculation of s->maxdata can be removed. Also, change the type to
match the comedi_subdevice type. Add a comment about the '0' value
for DEVICE_VMK8061.
The s->maxdata should always be set for the subdevice. Move it out
of the conditional.
Rename the (*insn_read), (*insn_config_, and (*insn_write) functions
for the counter subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: cleanup digital input subdevice init
Change the type for the digital input 'di_chans' boardinfo to match
the comedi_subdevice type it is set to. For aesthetic reasons, rename
the variable also.
Remove the SDF_GROUND flag from s->subdev_flags. This flag only has
meaning for analog subdevices.
Add the missing s->range_table for the subdevice.
Rename the (*insn_read) and (*insn_bits) functions for the digital
input subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: cleanup analog output subdevice init
Change the type for the analog output 'ao_chans' boardinfo to match
the comedi_subdevice type it is set to. For aesthetic reasons, rename
the variable also.
Rename the (*insn_write) and (*insn_read) functions for the analog
output subdevice to make grepping easier.
For aesthetic reasons, add some whitespace to the subdevice init.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: push usb (*probe) into comedi (*auto_attach)
Make the usb_driver (*probe) simply call comedi_usb_auto_config()
and move all the (*probe) code into the (*auto_attach) function.
This allows getting rid of the static private data array since we
no longer do part of the initialization in the (*probe) and then
finish it in the (*auto_attach). We can simply kzalloc the private
data instead. The comedi core will then handle the kfree of the
data when the driver is detached.
We can also get rid of the static 'glb_mutex' since this mutex was
only used to protect the static private data array.
Change the parameters for a couple of the helper functions used
during the auto attach. Now that the comedi_device is available
we can simply pass that pointer and get the specific pointers
needed by the helper functions from it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: comedi_usb: allow comedi usb drivers to pass a 'context'
Allow the comedi usb drivers to pass a 'context' from their (*probe)
functions to the comedi core's comedi_usb_auto_config(). This 'context'
is then passed to comedi_auto_config() and then to the comedi_driver's
(*auto_attach).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: remove private data 'attached'
The 'attached' flag in the private data is set after the comedi_driver
(*auto_attach) function has completed successfully.
The only places it's checked are in rudimentary_check(), which does
some basic sanity checks before doing any of the subdevice operations,
and vmk80xx_auto_attach(), which is the comedi_driver (*auto_attach)
function.
The (*auto_attach) function can only be called as the result of a
successfull usb_driver (*probe). Part of the probe is to locate a
free slot in the static private data array. All free slots are
initialized to '0' so the 'attached' flag will always be cleared.
Remove the unneccessary 'attached' flag in the private data.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: remove private data 'probed'
The 'probed' variable is used in the usb driver (*probe) to detect an
unused element in the static private data arry. This variable is then
set after the usb driver has completed its (*probe) before calling
comedi_usb_auto_config(). When the comedi core does the auto config
it will call the (*auto_attach) function, vmk80xx_auto_attach(), which
then locates the correct private data in the static array by checking
to see if it has been 'probed' and that the 'intf' variable matches
the usb_interface pointer for the usb device.
Now that the private data is clean after failed usb probes and disconnects
we don't have to worry about have a garbage 'intf' value in the private
data that might match.
Remove the 'probed' flag from the private data and just use the 'intf'
pointer to detect the match.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: make sure private data is clean when detached
Currently the private data used in this driver is stored in a static
array. During the usb (*probe) and empty location is found in this
array for use by the usb device. Some initialization of the private
data is then done before comedi_usb_auto_config() is called to allow
the comedi core to attach its comedi_device to the usb device.
The (*probe) can fail for various reasons. If it does, make sure that
the private data is clean before returning an error.
The usb (*disconnect) simply calls comedi_usb_auto_unconfig() to
allow the comedi core to disconnect its comedi_device from the usb
device. Since the private data points to the static array it cannot
be kfree'ed during the detach. Instead make sure it clean before
leaving the detach.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: remove common and unused boardinfo
Some of the information in the boardinfo is common for both boards
supported by this driver. Remove that information from the boardinfo
and just initialize the subdevice values directly.
Also, remove any information in the boardinfo that is not used in
the driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: move boardinfo into a const array
The normal way of presenting the board specific information in comedi
drivers is store the data in a static const array. This data is then
accessed using a pointer, normally the comedi_device 'board_ptr',
Move the boardinfo for the two boards supported by this driver from
the vmk80xx_usb_probe() function into a static const array.
Change the access of this information so a pointer is used.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: vmk80xx: use comedi_auto_unconfig() for (*disconnect)
The usb_driver (*disconnect) in this driver is simply a wrapper around
comedi_auto_unconfig(). Just use comedi_auto_unconfig() directly for
the (*disconnect).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Minchan Kim [Tue, 5 Feb 2013 23:48:53 +0000 (08:48 +0900)]
zram: get rid of lockdep warning
Lockdep complains about recursive deadlock of zram->init_lock.
[1] made it false positive because we can't request IO to zram
before setting disksize. Anyway, we should shut lockdep up to
avoid many reporting from user.
[1] : zram: force disksize setting before using zram
Peter Huewe [Tue, 5 Feb 2013 19:38:35 +0000 (20:38 +0100)]
staging/xgifb: Remove unused variable
After the patch
'staging/xgifb: Don't write the same values x times'
the local variable i is unused, which leads to the following warning:
driverrs/staging/xgifb/vb_init.c: In function
‘XGINew_SetDRAMDefaultRegister340’:
drivers/staging/xgifb/vb_init.c:433:43: warning: unused variable ‘i’
[-Wunused-variable]
This patch fixes this
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'iio-for-3.9c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
"Third set of IIO new drivers, cleanups and fixes for the 3.9 cycle
New drivers
1) A driver for ST microelectronics sensors. This driver already covers
a large set of new parts (20 gyros, accelerometer and magnetometers)
not currently covered by the existing drivers. The intent moving forward
is to merge this with the other drivers for similar parts already in tree.
The lis3l02dq driver currently in staging/iio will be trivial, the lis3
driver in misc more complex as it has a number of additional interfaces.
Any merging in of the lis3 driver will rely on the not currently
merged iio_input bridge driver and handling of freefall notifications
etc.
2) A driver for the itg3200 gyroscope.
Graduations from staging
1) Cleanup and move out of staging of the adxrs450 gyroscope driver. The
cleanup required was all minor but there were a couple of fixes hidden in
there.
Core and driver additions
1) Initial work from Guenter Roeck on device tree support for IIO's provider/
consumer code. Focuses on the iio_hwmon driver and the max1363 adc driver.
The full device tree syntax is currently under discussion but should
follow shortly.
Cleanups and fixes
1) Remove a noop function __iio_update_buffer
2) Couple of small fixes and cleanups for the max1363
"
Ian Abbott [Tue, 5 Feb 2013 12:50:40 +0000 (12:50 +0000)]
staging: comedi: check s->async for poll(), read() and write()
Some low-level comedi drivers (incorrectly) point `dev->read_subdev` or
`dev->write_subdev` to a subdevice that does not support asynchronous
commands. Comedi's poll(), read() and write() file operation handlers
assume these subdevices do support asynchronous commands. In
particular, they assume `s->async` is valid (where `s` points to the
read or write subdevice), which it won't be if it has been set
incorrectly. This can lead to a NULL pointer dereference.
Check `s->async` is non-NULL in `comedi_poll()`, `comedi_read()` and
`comedi_write()` to avoid the bug.
This module parameter is used to enable the auto config mechanism
in the comedi core. Most of the PCI, PCMCIA, and USB drivers have
been converted to use the auto config mechanism and will not attach
if it is disabled.
Since the 'comedi_autoconfig' parameter is defaulted to true, just
remove it so that the comedi drivers that use auto config will
always be able to attach.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The (*insn_write) functions are expected to write 'insn->n' number
of samples to the channel. Fix this function so it works as the
comedi core expects.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: quatech_daqp_cs: use (*insn_bits) for digital outputs
Change the subdevice operation used to write the digital outputs from
a (*insn_write) to a (*insn_bits) function. The (*insn_write) functions
are expected to write 'insn->n' number of samples. The (*insn_bits)
functions just write a single sample (insn->n = 1). Change the return
from '1' to 'insn->n' to clarify what the return is.
Using an (*insn_bits) function to write the digital outputs also allows
the user to read the current state of the output channels.
Fix the io operation used to update the digital outputs. The register is
only 8-bits and should by updated with an outb() not an outw().
Also, set the 'maxdata' for the subdevice. For digital io this value
should be '1' (digital io can only be 1 or 0).
Remove the setting of the len_chanlist for the subdevice. This variable
only has meaning for subdevices that support asynchronous commands. The
comedi core will initialize it appropriately during the postconfig.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: quatech_daqp_cs: use (*insn_bits) for digital inputs
Change the subdevice operation used to read the digital inputs from
a (*insn_read) to a (*insn_bits) function. The (*insn_read) functions
are expected to read 'insn->n' number of samples. The (*insn_bits)
functions just read a single sample (insn->n = 1). Change the return
from '1' to 'insn->n' to clarify what the return is.
Also, set the 'maxdata' for the subdevice. For digital io this value
should be '1' (digital io can only be 1 or 0).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: quatech_daqp_cs: rename the private data struct
The private data in this driver is associated with the comedi_device
pointer not the pcmcia_device. For aesthetic reasons, rename the
private data struct from local_into_t to daqp_private.
Also, rename the local variables used for the private data from
local to devpriv as that is more common in the comedi drivers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: quatech_daqp_cs: store private data in the comedi_device
All the comedi_subdevices in this driver use the same 'local' private data.
Instead of storing the pointer to the private data in each subdevice, just
store it in the comedi_device.
Also, instead of passing the private data pointer to pcmcia_request_irq()
in link->priv, pass the comedi_device pointer. This allows removing the
comedi_device and comedi_subdevice pointers from the private data. We can
get them as needed from the void * in the interrupt function.
Fix the pcmcia suspend/resume functions so they use the comedi_device
pointer stored in link->priv to then get the private data pointer.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: quatech_daqp_cs: use comedi_pcmcia_disable() for (*detach)
The (*detach) function, daqp_detach() is now a simple wrapper around
comedi_pcmcia_disable(). Just use comedi_pcmcia_disable() directly for
the (*detach).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: quatech_daqp_cs: convert to auto attach
Convert this pcmcia driver to the comedi auto attach mechanism.
This allows getting rid of the static data that held "A list of
"instances" of the device" that was used to pass the pcmcia_device
pointer from the pcmcia_driver to the comedi_driver.
Also, remove the now unused variables in the private data that
were used to pass the pcmcia_device.
Remove the code that pulled the model number of the card out of
the PCMCIA CIS and stashed it in the private data since it is
not used in the driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Mon, 4 Feb 2013 23:29:47 +0000 (00:29 +0100)]
staging/xgifb: Consolidate if branches with similar conditions
1) The same condition (pVBInfo->IF_DEF_LVDS == 0) was checked in the if
clause directly in front of this one.
2) The same condition pVBInfo->VBType & (VB_SIS301B | VB_SIS302B |
VB_SIS301LV | VB_SIS302LV | VB_XGI301C) was checked in the if
clause directly in front of this one.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Mon, 4 Feb 2013 23:29:46 +0000 (00:29 +0100)]
staging/xgifb: Consolidate if/else for 'identical' branches
Since XGI_LCDDesStruct is fully contained in XGI330_LCDDataDesStruct2
and the offsets for the first members is identical we can consolidate
the if/else branches here and use XGI330_LCDDataDesStruct2 for
everything.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Mon, 4 Feb 2013 23:29:45 +0000 (00:29 +0100)]
staging/xgifb: Don't write the same values x times
With the previous patch 'Move duplicated code for dram to helper
function' it becomes evident that the code is performing the same
thing 4 or 8 times in a row without changing arguments to the function
and thus writing the same values over and over again.
It was tested that these repeats are unnecessary.
-> we can safely remove them.
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Mon, 4 Feb 2013 23:29:44 +0000 (00:29 +0100)]
staging/xgifb: Move duplicated code for dram to helper function
XGINew_SetDRAMDefaultRegister340 uses the same code fragment 4 times
with only a slight variation each time.
-> Move this code to a helper function - this saves some lines and
~450bytes in the .o / .ko
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Mon, 4 Feb 2013 23:29:43 +0000 (00:29 +0100)]
staging/xgifb: Replace XGI340_CR6B table with simple if/else
The XGI340_CR6B lookup table consists of the entries
{0xaa, 0xaa, 0xaa, 0xaa} for an index <= 2 and
{0x00, 0x00, 0x00, 0x00} for all other indices.
The only user XGINew_SetDRAMDefaultRegister340 loops over these 4 values
of a line with a for loop and since all entries are the same for each line
we can simply replace the whole lookup table with a simple if/else assignment.
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_daq_700: use comedi_pcmcia_disable() for (*detach)
The (*detach) function, daq700_detach() is now a simple wrapper around
comedi_pcmcia_disable(). Just use comedi_pcmcia_disable() directly for
the (*detach).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: cb_das16_cs: use comedi_pcmcia_disable() for (*detach)
The (*detach) function, das16cs_detach() is a simple wrapper around
comedi_pcmcia_disable(). Just use comedi_pcmcia_disable() directly
for the (*detach).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: cb_das16_cs: use pcmcia_request_irq()
Use pcmcia_request_irq() instead of request_irq() to request the
irq for the PCMCIA device. This allows the PCMCIA core to clean
up the registration in pcmcia_disable_device().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
projects / linux-beck.git / log