Peter Huewe [Tue, 5 Feb 2013 21:32:33 +0000 (22:32 +0100)]
staging/xgifb: Remove unneeded conditional assignment
pVBInfo->ram_type is assigned the return value of
XGINew_GetXG20DRAMType which can only be 0, 1 or 2
-> The conditional assignment is not needed here as it always evaluates
to true.
-> remove
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Tue, 5 Feb 2013 21:32:32 +0000 (22:32 +0100)]
staging/xgifb: Remove unused values in XGI340_ECLKData
In the lookup table XGI340_ECLKData only the first three 'lines' are
used, thus the remaining entries can be removed.
Rationale:
- vb_init.c uses pVBInfo->ram_type as the index for XGI340_ECLKData.
- pVBInfo->ram_type is assigned the return value of
XGINew_GetXG20DRAMType which can only be 0, 1 or 2
-> only the first three values are used.
-> remove the remeining entries.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Tue, 5 Feb 2013 21:32:31 +0000 (22:32 +0100)]
staging/xgifb: Remove unused entries in XGI340New_MCLKData and XGI27New_MCLKData
In the lookup tables XGI340New_MCLKData and XGI27New_MCLKData only the
first three 'lines' are used, thus the remaining fields can be removed.
Rationale:
- vb_init.c uses pVBInfo->ram_type as the index for pVBInfo->MCLKData
- pVBInfo->ram_type is assigned the return value of
XGINew_GetXG20DRAMType which can only be 0, 1 or 2
- pVBInfo->MCLKData is assigned to either XGI340New_MCLKData or
XGI27New_MCLKData in vb_setmode.c
-> only the first three values are used, the rest can be removed.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Tue, 5 Feb 2013 21:32:30 +0000 (22:32 +0100)]
staging/xgifb: Remove unused values in XG27_SR13 and XGI340_SR13
In the lookup tables XG27_SR13 and XGI340_SR13 only the first three
values are used of each 'line', thus the remaining fields can be
removed.
Rationale:
- vb_init.c uses pVBInfo->ram_type for the 'column' index for
pVBInfo->SR15.
- pVBInfo->ram_type is assigned the return value of
XGINew_GetXG20DRAMType which can only be 0, 1 or 2
- pVBInfo->SR15 is assigned to either XG27_SR13 or XGI340_SR13 in
vb_setmode.c
-> only the first three values are used.
This becomes also evident as values 3-7 are all 0.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Tue, 5 Feb 2013 21:32:29 +0000 (22:32 +0100)]
staging/xgifb: Remove unused values in XGI340_cr41 and XGI27_cr41
In the lookup tables XGI340_cr41 and XGI27_cr41 only the first three
values are used of each 'line', thus the remaining fields can be
removed.
Rationale:
- vb_init.c uses pVBInfo->ram_type for the 'column' index for
pVBInfo->CR40.
- pVBInfo->ram_type is assigned the return value of
XGINew_GetXG20DRAMType which can only be 0, 1 or 2
- pVBInfo->CR40 is assigned to either XGI340_cr41 or XGI27_cr41 in
vb_setmode.c
-> only the first three values are used.
This becomes also evident as values 3-7 are all 0.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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>
Greg Kroah-Hartman [Tue, 5 Feb 2013 19:25:37 +0000 (11:25 -0800)]
Merge tag 'iio-for-3.9c' of git://git./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.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Tue, 5 Feb 2013 00:13:01 +0000 (17:13 -0700)]
staging: comedi: remove 'comedi_autoconfig' module parameter
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:44:57 +0000 (16:44 -0700)]
staging: comedi: quatech_daqp_cs: factor out common ai scanlist code
Factor the code that programs the analog input scanlist out of the
daqp_ai_insn_read() and daqp_ai_cmd() functions.
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:44:37 +0000 (16:44 -0700)]
staging: comedi: quatech_daqp_cs: fix daqp_ao_insn_write()
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:44:17 +0000 (16:44 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:43:56 +0000 (16:43 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:43:37 +0000 (16:43 -0700)]
staging: comedi: quatech_daqp_cs: remove unused define
The MAX_DEV define is no longer used in this driver. Remove 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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:43:19 +0000 (16:43 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:42:56 +0000 (16:42 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:42:32 +0000 (16:42 -0700)]
staging: comedi: quatech_daqp_cs: ao subdevice does not support commands
The analog output subdevice does not support aynchronous commands.
Don't set the dev->write_subdev to this subdevice.
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:42:09 +0000 (16:42 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:41:49 +0000 (16:41 -0700)]
staging: comedi: quatech_daqp_cs: use comedi_pcmcia_{enable, disable}
Use the comedi_pcmcia_{enable,disable} helpers to enable/disable
the PCMCIA 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>
H Hartley Sweeten [Mon, 4 Feb 2013 23:41:30 +0000 (16:41 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 21:22:17 +0000 (14:22 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 21:21:56 +0000 (14:21 -0700)]
staging: comedi: ni_daq_700: use comedi_pcmcia_{enable, disable}
Use the comedi_pcmcia_{enable,disable} helpers to enable/disable
the PCMCIA device.
This driver does not use interrupts and is not an audio device,
remove CONF_ENABLE_IRQ and CONF_AUTO_AUDIO from the link->config_flags.
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>
H Hartley Sweeten [Mon, 4 Feb 2013 21:21:31 +0000 (14:21 -0700)]
staging: comedi: das08_cs: use comedi_pcmcia_{enable, disable}
Use the comedi_pcmcia_{enable,disable} helpers to enable/disable
the PCMCIA device.
This driver does not use interrupts so remove CONF_ENABLE_IRQ from
the link->config_flags.
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>
H Hartley Sweeten [Mon, 4 Feb 2013 21:21:09 +0000 (14:21 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 21:20:29 +0000 (14:20 -0700)]
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>
H Hartley Sweeten [Mon, 4 Feb 2013 21:20:08 +0000 (14:20 -0700)]
staging: comedi: cb_das16_cs: use comedi_pcmcia_{enable, disable}
Use the comedi_pcmcia_{enable,disable} helpers to enable/disable
the PCMCIA 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>
H Hartley Sweeten [Mon, 4 Feb 2013 21:19:35 +0000 (14:19 -0700)]
staging: comedi: comedi_pcmcia: introduce comedi_pcmcia_{enable, disable}
Introduce some helper functions to enable/disable the PCMCIA device.
This will allow removing some of the boilerplate code in the comedi
PCMCIA 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>
Peter Huewe [Sun, 3 Feb 2013 21:54:39 +0000 (22:54 +0100)]
staging/xgifb: Simplify XGISetModeNew
This patch simplifies the code of XGISetModeNew by reordering the
if/else if/case conditions when both branches are doing exactly the
same.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:38 +0000 (22:54 +0100)]
staging/xgifb: Consolidate XGI_EnableChISLCD and XGI_DisableChISLCD
These two functions share the same code except one line - thus we can
simply merge them and add a parameter to switch between both variants.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:37 +0000 (22:54 +0100)]
staging/xgifb: Remove unnecessary bitshifts in XGI_SetCRT1ModeRegs
Since data can only be 0x0000, 0x0035 or 0x0048 we can simply skip the
bit shifting and masking as data & 0xFF is always equal to data and
data & 0xFF00 is always 0.
So we simply use data and 0 directly and save the assignment.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:36 +0000 (22:54 +0100)]
staging/xgifb: remove unnecessary temp variable in XGIfb_mode_rate_to_ddata
Instead of subtracting one and then assign a different name and add 1
again we simply use HDE directly. HDE wasn't used directly before, so no
change in functionality.
Same applies to VDE.
-> now we can remove the variable with the very descriptive name E ;)
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:35 +0000 (22:54 +0100)]
staging/xgifb: rewrite XGIfb_get_cmap_len
We don't need to use this switch-case here for a simple two case
if-else.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:34 +0000 (22:54 +0100)]
staging/xgifb: Simplify XGI_SetSeqRegs
Since SR[0] in the (readonly) XGI330_StandTable is always 0x01 we can
skip or'ing with 0x01 and make the code simpler by removing the if
statements.
Since this function is the only user of the XGI330_StandTable we can
also include the unconditional |= 0x20 into the input data and move the
assignment to SR1 into the loop, which I prefer to start at 0.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:33 +0000 (22:54 +0100)]
staging/xgifb: Fix return of uninitialized variable
Clang warning:
drivers/staging/xgifb/XGI_main_26.c: warning: variable 'ret' is
used uninitialized whenever 'if' condition:
if (xgifb_info->mode_idx < 0) {
evaluates to true.
drivers/staging/xgifb/XGI_main_26.c:
note: uninitialized use occurs here
return ret;
This patch initializes the variable in this case.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:32 +0000 (22:54 +0100)]
staging/xgifb: mttr must be (signed) int
The mttr field must be declared as signed int (as in every other fb
driver) for the mttr functions to work properly.
Moreover the value should be initialized with -1.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:31 +0000 (22:54 +0100)]
staging/xgifb: Remove always false comparisons
This patch removes some comparisons that always evaluate to false since
xoffset and yoffset are defined as __u32 in fb_var_screeninfo in
include/linux/fb.h and thus can never be negative.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 21:54:30 +0000 (22:54 +0100)]
staging/xgifb: Simplify XGI_GetRatePtrCRT2
Since the smaller LCDRefreshIndex is contained identically in LCDARefreshIndex
we can simply use LCDARefreshIndex and skip the if/else.
Since LCDARefreshIndex is only used readonly and contains only small
unsigned values we also change its declaration to const u8.
In order to prevent an out-of-bounds access I changed the mask from 0x0F
to 0x07 and added a dummy value.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Minchan Kim [Wed, 30 Jan 2013 02:41:41 +0000 (11:41 +0900)]
zram: give up lazy initialization of zram metadata
1) User of zram normally do mkfs.xxx or mkswap before using
the zram block device(ex, normally, do it at booting time)
It ends up allocating such metadata of zram before real usage so
benefit of lazy initialzation would be mitigated.
2) Some user want to use zram when memory pressure is high.(ie, load zram
dynamically, NOT booting time). It does make sense because people don't
want to waste memory until memory pressure is high(ie, where zram is really
helpful time). In this case, lazy initialzation could be failed easily
because we will use GFP_NOIO instead of GFP_KERNEL for avoiding deadlock.
So the benefit of lazy initialzation would be mitigated, too.
3) Metadata overhead is not critical and Nitin has a plan to diet it.
4K : 12 byte(64bit machine) -> 64G : 192M so 0.3% isn't big overhead
If insane user use such big zram device up to 20, it could consume 6% of ram
but efficieny of zram will cover the waste.
So this patch gives up lazy initialization and instead we initialize metadata
at disksize setting time.
Acked-by: Jerome Marchand <jmarchand@redhat.com>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Minchan Kim [Wed, 30 Jan 2013 02:41:40 +0000 (11:41 +0900)]
zram: force disksize setting before using zram
Now zram document syas "set disksize is optional"
but partly it's wrong. When you try to use zram firstly after
booting, you must set disksize, otherwise zram can't work because
zram gendisk's size is 0. But once you do it, you can use zram freely
after reset because reset doesn't reset to zero paradoxically.
So in this time, disksize setting is optional.:(
It's inconsitent for user behavior and not straightforward.
This patch forces always setting disksize firstly before using zram.
Yes. It changes current behavior so someone could complain when
he upgrades zram. Apparently it could be a problem if zram is mainline
but it still lives in staging so behavior could be changed for right
way to go. Let them excuse.
Acked-by: Jerome Marchand <jmarchand@redhat.com>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Minchan Kim [Wed, 30 Jan 2013 02:41:39 +0000 (11:41 +0900)]
zram: Fix deadlock bug in partial read/write
Now zram allocates new page with GFP_KERNEL in zram I/O path
if IO is partial. Unfortunately, It may cause deadlock with
reclaim path like below.
write_page from fs
fs_lock
allocation(GFP_KERNEL)
reclaim
pageout
write_page from fs
fs_lock <-- deadlock
This patch fixes it by using GFP_NOIO. In read path, we
reorganize code flow so that kmap_atomic is called after the
GFP_NOIO allocation.
Cc: stable@vger.kernel.org
Acked-by: Jerome Marchand <jmarchand@redhat.com>
Acked-by: Nitin Gupta <ngupta@vflare.org>
[ penberg@kernel.org: don't use GFP_ATOMIC ]
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 31 Jan 2013 21:42:16 +0000 (14:42 -0700)]
pci_ids.h: add common pci vendor ids from comedi subsystem
There are a number of pci vendor ids that are used in multiple
drivers in the comedi subsystem. Move these ids to pci_ids.h.
This also fixes some build warnings reported by the kbuild test
robot about PCI_VENDOR_ID_AMPLICON being undeclared.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 1 Feb 2013 14:51:58 +0000 (14:51 +0000)]
staging: comedi: ni_labpc: correct differential channel sequence for AI commands
Tuomas <tvainikk _at_ gmail _dot_ com> reported problems getting
meaningful output from a Lab-PC+ in differential mode for AI cmds, but
AI insn reads gave correct readings. He tracked it down to two
problems, one of which is addressed by this patch.
It seems the setting of the channel bits for particular scanning modes
was incorrect for differential mode. (Only half the number of channels
are available in differential mode; comedi refers to them as channels 0,
1, 2 and 3, but the hardware documentation refers to them as channels 0,
2, 4 and 6.) In differential mode, the setting of the channel enable
bits in the command1 register should depend on whether the scan enable
bit is set. Effectively, we need to double the comedi channel number
when the scan enable bit is not set in differential mode. The scan
enable bit gets set when the AI scan mode is `MODE_MULT_CHAN_UP` or
`MODE_MULT_CHAN_DOWN`, and gets cleared when the AI scan mode is
`MODE_SINGLE_CHAN` or `MODE_SINGLE_CHAN_INTERVAL`. The existing test
for whether the comedi channel number needs to be doubled in
differential mode is incorrect in `labpc_ai_cmd()`. This patch corrects
the test.
Thanks to Tuomas for suggesting the fix.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.7.x, 3.8.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 1 Feb 2013 14:51:57 +0000 (14:51 +0000)]
staging: comedi: ni_labpc: set up command4 register *after* command3
Tuomas <tvainikk _at_ gmail _dot_ com> reported problems getting
meaningful output from a Lab-PC+ in differential mode for AI cmds, but
AI insn reads gave correct readings. He tracked it down to two
problems, one of which is addressed by this patch.
It seems that writing to the command3 register after writing to the
command4 register in `labpc_ai_cmd()` messes up the differential
reference bit setting in the command4 register. Set up the command4
register after the command3 register (as in `labpc_ai_rinsn()`) to avoid
the problem.
Thanks to Tuomas for suggesting the fix.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.7.x, 3.8.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 1 Feb 2013 13:23:20 +0000 (13:23 +0000)]
staging: comedi: restrict comedi_set_hw_dev() usage
Don't allow comedi drivers to change `dev->hw_dev` using
`comedi_set_hw_dev()` if it's already been set. Return `-EEXIST` in
that case.
`dev->hw_dev` needs to be set to NULL by the core during clean-up of the
comedi device, so add a local function `comedi_clear_hw_dev()` to do
that.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 1 Feb 2013 13:23:19 +0000 (13:23 +0000)]
staging: comedi: export comedi_set_hw_dev()
Chnage the inline `comedi_set_hw_dev()` to an exported function and
change it's return type from `void` to `int` so we can impose some
restrictions (in a later patch) and return an error if necessary.
Only a few comedi drivers call this, although they don't need to if the
hardware device has been attached automatically via
`comedi_auto_config()` and the comedi driver's `auto_attach()` method.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 1 Feb 2013 10:20:30 +0000 (10:20 +0000)]
staging: comedi: change comedi_alloc_subdevice_minor parameters
`comedi_alloc_subdevice_minor()` doesn't really need a parameter
pointing to a `struct comedi_device` as it can get this information from
the parameter pointing to a `struct comedi_subdevice`. Just pass the
subdevice parameter.
Signed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 1 Feb 2013 10:20:29 +0000 (10:20 +0000)]
staging: comedi: move comedi_alloc_subdevice_minor declarations
Move the declarations of `comedi_alloc_subdevice_minor()` and
`comedi_free_subdevice_minor()` from "comedidev.h" to
"comedi_internal.h" since they are only of interest to the comedi core,
and are not exported to the low-level comedi drivers.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Garrick He [Fri, 1 Feb 2013 09:45:16 +0000 (01:45 -0800)]
Staging: wlan-ng: Fix tab coding style issue in hfa384x.h
Fix all 'please, no space before tabs' warning found by checkpatch.pl
Signed-off-by: Garrick He <garrickhe@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 31 Jan 2013 22:25:49 +0000 (15:25 -0700)]
staging: comedi: das08: split out bus specific code
Split the bus specific ISA/PC-104 and PCI code out of this driver
and create two new drivers, das08_isa and das08_pci.
This allows removing all the #ifdef'ery in the das08 driver that
handled if the CONFIG_COMEDI_DAS08_{ISA,PCI} options were enabled.
It also makes the PCI driver cleanly Plug-and-Play since the comedi
driver only has an auto_attach callback. Previously it also had an
attach callback in order to handle the ISA cards.
Since the PCMCIA support was already split out, we can also remove
the now unused enum das08_bustype and it's use in the boardinfo.
The bus specific code deals with the bustype automatically before
it calls the common attach function in das08.
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>
Andres More [Thu, 31 Jan 2013 23:23:07 +0000 (18:23 -0500)]
staging: vt6656: fix C99 // comments in main_usb.c
Resolved 'do not use C99 // comments' checkpatch errors.
Many warnings about odd indentation were left.
Signed-off-by: Andres More <more.andres@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andres More [Thu, 31 Jan 2013 20:57:19 +0000 (15:57 -0500)]
staging: vt6656: fixed C99 // comments in two headers
Cleared 'do not use C99 // comments' checkpatch error in device.h and
device_cfg.h
Signed-off-by: Andres More <more.andres@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andres More [Thu, 31 Jan 2013 20:20:42 +0000 (15:20 -0500)]
staging: vt6656: cleared C99 // comments in datarate.c
Cleared 'do not use C99 // comments' checkpatch error, several warnings
about code indentation and camel casing were not resolved.
Signed-off-by: Andres More <more.andres@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andres More [Thu, 31 Jan 2013 20:40:14 +0000 (15:40 -0500)]
staging: vt6656: fixed C99 // comments
Cleared 'do not use C99 // comments' checkpatch errors in two headers.
Several obvious comments were removed.
Signed-off-by: Andres More <more.andres@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andres More [Thu, 31 Jan 2013 19:55:58 +0000 (14:55 -0500)]
staging: vt6656: cleared 'do not use C99 // comments' checkpatch errors
Switched // comments into respective /**/ ones
Signed-off-by: Andres More <more.andres@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andres More [Thu, 31 Jan 2013 19:33:19 +0000 (14:33 -0500)]
staging: vt6656: cleared 'do not use C99 // comments' checkpatch errors
switched all // comments on file to respective /**/
Signed-off-by: Andres More <more.andres@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 31 Jan 2013 00:38:02 +0000 (17:38 -0700)]
staging: comedi: ni_mio_cs: convert to auto attach
Convert this pcmcia driver to the comedi auto attach mechanism.
This allows getting rid of the "hack" needed to pass the pcmcia_device
pointer from the pcmcia_driver to the comedi_driver.
We still need the boardinfo because ni_mio_common.c uses it. Cleanup
ni_getboardtype() so it returns a pointer to the boardinto instead
of the index.
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>
H Hartley Sweeten [Thu, 31 Jan 2013 00:08:05 +0000 (17:08 -0700)]
staging: comedi: ni_labpc_cs: convert to auto attach
Convert this pcmcia driver to the comedi auto attach mechanism.
This allows getting rid of the "hack" needed to pass the pcmcia_device
pointer from the pcmcia_driver to the comedi_driver.
We still need the boardinfo because the ni_labpc driver uses it. But
we can get rid of the duplicate that allowed attaching with the driver
name.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:48:15 +0000 (16:48 -0700)]
staging: comedi: ni_daq_dio24: remove some unnecessary includes
This driver does not use anything from the interrupt.h, slab.h,
and ioport.h headers. Don't bother including them.
For aesthetic reasons, move the include of the comedi specific
8255.h header to the end of the includes.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:47:01 +0000 (16:47 -0700)]
staging: comedi: ni_daq_dio24: convert to auto attach
Convert this pcmcia driver to the comedi auto attach mechanism.
This allows getting rid of the "hack" needed to pass the pcmcia_device
pointer from the pcmcia_driver to the comedi_driver as well as the
now unnecessary boardinfo.
Check the call to subdev_8255_init() for success. That function does
a kzalloc and could return -ENOMEM.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:46:39 +0000 (16:46 -0700)]
staging: comedi: ni_daq_dio24: cleanup dio24_detach
Simplify the call to subdev_8255_cleanup() to remove the
need for a local variable.
This driver only attaches to pcmcia devices so the test for
thisboard != pcmcia_bustype will always fail. Remove the test
and the unreachable release_region().
This driver also never does a request_irq() so remove the
free_irq().
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:46:16 +0000 (16:46 -0700)]
staging: comedi: ni_daq_dio24: remove '#undef LABPC_DEBUG'
The LABPC_DEBUG define is not used in this driver. Just remove the
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:45:55 +0000 (16:45 -0700)]
staging: comedi: ni_daq_dio24: remove comedi private data
The comedi private data, struct dio24_private, is not used in
the driver. Remove it and the kzalloc.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:45:32 +0000 (16:45 -0700)]
staging: comedi: ni_daq_dio24: remove the '#ifdef incomplete' code
All the '#ifdef incomplete' code deals with interrupt support in
this driver. For now just remove all this #if'defed out code.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:45:09 +0000 (16:45 -0700)]
staging: comedi: ni_daq_dio24: remove thisboard macro
The 'thisboard' macro relies on a local variable having a specific
name and yields a pointer derived from that local variable.
Replace the macro with a local variable and use the comedi_board()
helper to get the 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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:44:47 +0000 (16:44 -0700)]
staging: comedi: ni_daq_dio24: move comedi_driver declaration
Move the comedi_driver declaration down in the file. This removes
the need for the forward declarations.
For aesthetic reasons, add some whitespace to the declaration.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:44:25 +0000 (16:44 -0700)]
staging: comedi: ni_daq_dio24: remove pcmcia_device private data
The private data, struct local_info_t, is not being used in the
driver. Remove it as well as the kzalloc/kfree.
Also, don't set the 'pcmcia_cur_dev' variable unless the pcmcia
probe is successful.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:43:48 +0000 (16:43 -0700)]
staging: comedi: ni_daq_dio24: cleanup pcmcia probe/remove
Absorb the code from dio24_config() into the probe function,
dio24_cs_attach() and properly return the error code when the
probe fails. This also gets rid of an unnecessary forward
declaration.
For aesthetic reasons, move the remove functio, dio24_cs_detach(),
so it's after the probe function.
Remove a number of dev_{level} noise messages in the probe/remove
functions.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:43:22 +0000 (16:43 -0700)]
staging: comedi: ni_daq_dio24: remove pcmcia_driver suspend/resume
The pcmcia_driver suspend and resume functions in this driver
don't do anything. Since they are optional just remove them.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:42:31 +0000 (16:42 -0700)]
staging: comedi: ni_daq_dio24: remove 'stop' from private pcmcia data
The pcmcia_driver suspend and remove functions set the 'stop' variable
and the resume function clears it. Nothing in the comedi_driver code
uses the 'stop' variable.
Just remove it so we can get rid of the suspend/resume.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:42:06 +0000 (16:42 -0700)]
staging: comedi: ni_daq_dio24: remove dio24_release()
This function simply calls pcmcia_disable_device(). Remove it and
just call pcmcia_disable_device() where needed.
Also, remove a couple unnecessary forward declarations.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:41:45 +0000 (16:41 -0700)]
staging: comedi: ni_daq_dio24: cleanup pcmcia_driver
For aesthetic reasons, reorder the pcmcia_driver variables and
add some whitespace.
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>
H Hartley Sweeten [Wed, 30 Jan 2013 23:41:21 +0000 (16:41 -0700)]
staging: comedi: ni_daq_dio24: move MODULE_* info to end of file
For aesthetic reasons, move all the MODULE_* information to the end
of the file.
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 [Sun, 3 Feb 2013 03:08:46 +0000 (04:08 +0100)]
staging/xgifb: remove unused variables
XGI_P3cc is unused and the assignment without side effects -> remove;
Data can be simply replaced by the Temp variable, which was changed to
temp in order to make checkpatch happy.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 03:08:45 +0000 (04:08 +0100)]
staging/xgifb: Remove redundant if statement
The code checks twice for if (pVBInfo->VBInfo & SetCRT2ToTV) without any
changes in between -> we can remove the second check.
And while at it we can also save the temp variable and use tempbx
directly.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 03:08:44 +0000 (04:08 +0100)]
staging/xgifb: Remove unused variables
Pindex and Pdata are unused -> remove
tempbx is unused -> remove
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 03:08:43 +0000 (04:08 +0100)]
staging/xgifb: Remove unused variable and dead assignment
modeflag is unused in XGI_SetSeqRegs, XGI_GetTVInfo,
XGI_SetLCDRegs, XGI_GetRatePtrCRT2 -> remove
resinfo is unused in XGI_PreSetGroup1, XGI_SetGroup1, XGI_SetGroup2,
XGI_SetLCDRegs -> remove
push1,push2 are unused in XGI_SetLCDRegs -> remove
CRT1Index is unused in XGI_PreSetGroup1, XGI_SetLockRegs,
XGI_SetLCDRegs -> remove
tempcx in XGI_PreSetGroup1 only holds the values 4,5,6
-> change its type to u8
crt2crtc is unused in XGI_SetGroup2 -> remove
CRT2Index is unused in XGI_GetVCLK2Ptr -> remove.
Assignment to i is dead in XGI_SetSeqRegs since it is not used before
the next assignment -> remove the dead assignment.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 03:08:42 +0000 (04:08 +0100)]
staging/xgifb: Remove unused variable
Index is not used here -> remove.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 03:08:41 +0000 (04:08 +0100)]
staging/xgifb: Remove unused variables and dead assignments
The variables A,HBS and VBS are never read in XGIfb_mode_rate_to_ddata
and the assignment has no side effects -> so we can simply remove them.
Removing them causes VT, HT and cr_data3 to be unused -> remove them as well
and remove the assignmens to cr_data which are shadowed by a different
assignment a few lines later.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jonathan Cameron [Sat, 2 Feb 2013 10:47:08 +0000 (10:47 +0000)]
iio:max1363 remove some functions left after merge
merge commit
17cb3be61b45d716f6b21a9380925493413ce0ed
seems to have resulted in two functions that were removed in
4389fbec5b8fd0577c1e854ff5d7139329558c20 reappearing.
Spotted due to a build kicking out
drivers/iio/adc/max1363.c:1486:12: warning: 'max1363_register_buffered_funcs_and_init' defined but not used
drivers/iio/adc/max1363.c:1521:13: warning: 'max1363_buffer_cleanup' defined but not used
This patch just removes them again.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Guenter Roeck [Thu, 31 Jan 2013 21:43:00 +0000 (21:43 +0000)]
iio: Simplify iio_map_array_unregister API
Instead of requiring the map to unregister, simply unregister all map entries
associated with the given iio device. This simplifies map removal and also works
for maps generated through devicetree.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Guenter Roeck [Thu, 31 Jan 2013 21:43:00 +0000 (21:43 +0000)]
iio: Update iio_channel_get_all and iio_channel_get_all_cb API
Pass device pointer instead of device name as parameter to iio_channel_get_all
and iio_channel_get_all_cb. This will enable us to use OF information to
retrieve consumer channel information.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Guenter Roeck [Thu, 31 Jan 2013 21:43:00 +0000 (21:43 +0000)]
iio/adc: (max1363) Fix data conversion problems
For chips with more than 8 bit ADC resolution, received data was always
masked against 0xfff, ie with a 12 bit mask. This can result in bad data
for chips with 10 bit resolution if those chips have higher bits set
(seen with MAX1139).
The receive buffer was defined as char array. This could result in
unintentional sign extensions if the upper bit in a received byte
was set. Since the chip is configured for unipolar mode, we never
have to handle negative values, and sign extensions are never needed.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Guenter Roeck [Thu, 31 Jan 2013 21:43:00 +0000 (21:43 +0000)]
iio/adc: (max1363) Remove duplicate code
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Guenter Roeck [Thu, 31 Jan 2013 21:43:00 +0000 (21:43 +0000)]
iio/adc: (max1363) Provide OF node information to iio device
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Guenter Roeck [Thu, 31 Jan 2013 21:43:00 +0000 (21:43 +0000)]
iio/adc: (lp8788) Provide OF node information to iio device
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Guenter Roeck [Thu, 31 Jan 2013 21:43:00 +0000 (21:43 +0000)]
staging/iio: (iio_hwmon) Basic devicetree support
Add 'iio-hwmon' OF compatibility table entry to enable OF matches.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Guenter Roeck [Thu, 31 Jan 2013 21:42:00 +0000 (21:42 +0000)]
staging/iio: (iio_hwmon) Add support for sysfs name attribute
The 'name' attribute is mandatory for hwmon devices.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Guenter Roeck [Thu, 31 Jan 2013 21:42:00 +0000 (21:42 +0000)]
staging/iio: (iio_hwmon) Use devm_kzalloc
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Denis CIOCCA [Wed, 30 Jan 2013 09:15:00 +0000 (09:15 +0000)]
iio:common: removed unused functions outside st_sensors library
This patch remove st_sensors_get_sampling_frequency_avl and
st_sensors_get_scale_avl functions used only in
st_sensors_sysfs_sampling_frequency_avail and st_sensors_sysfs_scale_avail
sysfs functions.
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Manuel Stahl [Fri, 1 Feb 2013 08:51:00 +0000 (08:51 +0000)]
iio: gyro: Add itg3200
This patch adds support for the InvenSense itg3200.
The itg3200 is a three-axis gyro with 16-bit ADC and
I2C interface.
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lars-Peter Clausen [Thu, 31 Jan 2013 14:27:00 +0000 (14:27 +0000)]
staging:iio: Move adxrs450 driver out of staging
The adxrs450 is in a reasonable shape now. It follows the IIO ABI and non of the
standard code checker tools report any issue, so move it out of staging.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lars-Peter Clausen [Thu, 31 Jan 2013 14:27:00 +0000 (14:27 +0000)]
staging:iio:adxrs450: Move header file contents to main file
The contents of the adxrs450 header file is not used outside the main drivers
file, so just move the contents from the header file into the drivers main file.
Also rename the adxrs450 driver file from adxrs450_core.c to adxrs450.c.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lars-Peter Clausen [Thu, 31 Jan 2013 14:27:00 +0000 (14:27 +0000)]
staging:iio:adxrs450: Fixup kernel doc comments
Fix the name of the iio_device parameter for a few functions and add
documentation for one missing function parameter.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lars-Peter Clausen [Thu, 31 Jan 2013 14:27:00 +0000 (14:27 +0000)]
staging:iio:adxrs450: Use usleep_range for the sequential transfer dealy
The adxrs450 requires a delay of at least 0.1 ms between register writes. Using
msleep() for such small delays is not recommended. So use usleep_range instead.
Fixes the following checkpatch warning:
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lars-Peter Clausen [Thu, 31 Jan 2013 14:27:00 +0000 (14:27 +0000)]
staging:iio:adxrs450: Don't split string across multiple lines
This is one of the exceptions to the 80 chars per line rule since breaking the
string in half it badly affects the grep-ability.
Fixes the following checkpatch warning:
WARNING: quoted string split across lines
#203: FILE: staging/iio/gyro/adxrs450_core.c:203:
+ dev_warn(&st->us->dev, "The initial power on response "
+ "is not correct! Restart without reset?\n");
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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