02 Feb, 2010
1 commit
30 Jan, 2010
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: update multi-touch protocol documentation
Input: add the ABS_MT_PRESSURE event
Input: winbond-cir - remove dmesg spam
Input: lifebook - add another Lifebook DMI signature
Input: ad7879 - support auxiliary GPIOs via gpiolib
21 Jan, 2010
2 commits
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The driver core allows for a platform-specific chipselect assert/deassert
function, however the chipselect function in the core doesn't take advantage
of this fact.This enables the use of a custom function, should it be defined.
Signed-off-by: George Shore
Signed-off-by: Grant Likely -
Now dw_spi core fully supports 3 transfer modes: pure polling,
DMA and IRQ mode. IRQ mode will use the FIFO half empty as
the IRQ trigger, so each interface driver need set the fifo_len,
so that core driver can handle it properlySigned-off-by: Feng Tang
Signed-off-by: Grant Likely
19 Jan, 2010
1 commit
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Drop the simple fancy sysfs hooks for the aux GPIOs and expose these via
the gpiolib interface so that other drivers can use them.Signed-off-by: Michael Hennerich
Signed-off-by: Mike Frysinger
Signed-off-by: Dmitry Torokhov
18 Dec, 2009
1 commit
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* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
spi: spi_txx9.c: use resource_size()
spi: spi_sh_sci.c: use resource_size()
spi: spi_mpc8xxx.c: use resource_size()
spi: spi_bfin5xx.c: use resource_size()
spi: atmel_spi.c: use resource_size()
spi: Add s3c64xx SPI Controller driver
atmel_spi: fix dma addr calculation for len > BUFFER_SIZE
spi_s3c24xx: add FIQ pseudo-DMA support
spi: controller driver for Designware SPI core
spidev: add proper section markers
spidev: use DECLARE_BITMAP instead of declaring the array
17 Dec, 2009
1 commit
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Driver for the Designware SPI core, it supports multipul interfaces like
PCI/APB etc. User can use "dw_apb_ssi_db.pdf" from Synopsys as HW
datasheet.[randy.dunlap@oracle.com: fix build]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Feng Tang
Cc: David Brownell
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Grant Likely
15 Dec, 2009
1 commit
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* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: (23 commits)
spi: fix probe/remove section markings
Add OMAP spi100k driver
spi-imx: don't access struct device directly but use dev_get_platdata
spi-imx: Add mx25 support
spi-imx: use positive logic to distinguish cpu variants
spi-imx: correct check for platform_get_irq failing
ARM: NUC900: Add spi driver support for nuc900
spi: SuperH MSIOF SPI Master driver V2
spi: fix spidev compilation failure when VERBOSE is defined
spi/au1550_spi: fix setupxfer not to override cfg with zeros
spi/mpc8xxx: don't use __exit_p to wrap plat_mpc8xxx_spi_remove
spi/i.MX: fix broken error handling for gpio_request
spi/i.mx: drain MXC SPI transfer buffer when probing device
MAINTAINERS: add SPI co-maintainer.
spi/xilinx_spi: fix incorrect casting
spi/mpc52xx-spi: minor cleanups
xilinx_spi: add a platform driver using the xilinx_spi common module.
xilinx_spi: add support for the DS570 IP.
xilinx_spi: Switch to iomem functions and support little endian.
xilinx_spi: Split into of driver and generic part.
...
13 Dec, 2009
2 commits
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This patch is V2 of SPI Master support for the SuperH MSIOF.
Full duplex, spi mode 0-3, active high cs, 3-wire and lsb
first should all be supported, but the driver has so far
only been tested with "mmc_spi".The MSIOF hardware comes with 32-bit FIFOs for receive and
transmit, and this driver simply breaks the SPI messages
into FIFO-sized chunks. The MSIOF hardware manages the pins
for clock, receive and transmit (sck/miso/mosi), but the chip
select pin is managed by software and must be configured as
a regular GPIO pin by the board code.Performance wise there is still room for improvement, but
on a Ecovec board with the built-in sh7724 MSIOF0 this driver
gets Mini-sd read speeds of about half a megabyte per second.Future work include better clock setup and merging of 8-bit
transfers into 32-bit words to reduce interrupt load and
improve throughput.Signed-off-by: Magnus Damm
Signed-off-by: Grant Likely -
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (151 commits)
powerpc: Fix usage of 64-bit instruction in 32-bit altivec code
MAINTAINERS: Add PowerPC patterns
powerpc/pseries: Track previous CPPR values to correctly EOI interrupts
powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP
powerpc: Make "intspec" pointers in irq_host->xlate() const
powerpc/8xx: DTLB Miss cleanup
powerpc/8xx: Remove DIRTY pte handling in DTLB Error.
powerpc/8xx: Start using dcbX instructions in various copy routines
powerpc/8xx: Restore _PAGE_WRITETHRU
powerpc/8xx: Add missing Guarded setting in DTLB Error.
powerpc/8xx: Fixup DAR from buggy dcbX instructions.
powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions.
powerpc/8xx: Update TLB asm so it behaves as linux mm expects.
powerpc/8xx: Invalidate non present TLBs
powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate
pseries/pseries: Add code to online/offline CPUs of a DLPAR node
powerpc: stop_this_cpu: remove the cpu from the online map.
powerpc/pseries: Add kernel based CPU DLPAR handling
sysfs/cpu: Add probe/release files
powerpc/pseries: Kernel DLPAR Infrastructure
...
10 Dec, 2009
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits)
tree-wide: fix misspelling of "definition" in comments
reiserfs: fix misspelling of "journaled"
doc: Fix a typo in slub.txt.
inotify: remove superfluous return code check
hdlc: spelling fix in find_pvc() comment
doc: fix regulator docs cut-and-pasteism
mtd: Fix comment in Kconfig
doc: Fix IRQ chip docs
tree-wide: fix assorted typos all over the place
drivers/ata/libata-sff.c: comment spelling fixes
fix typos/grammos in Documentation/edac.txt
sysctl: add missing comments
fs/debugfs/inode.c: fix comment typos
sgivwfb: Make use of ARRAY_SIZE.
sky2: fix sky2_link_down copy/paste comment error
tree-wide: fix typos "couter" -> "counter"
tree-wide: fix typos "offest" -> "offset"
fix kerneldoc for set_irq_msi()
spidev: fix double "of of" in comment
comment typo fix: sybsystem -> subsystem
...
09 Dec, 2009
5 commits
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Conflicts:
include/linux/kvm.h -
- drop own, obsolete include-file
- drop IRQF_SAMPLE_RANDOM (deprecated feature)
- drop 'if' above kfree()
- typos, braces & whitespacesSigned-off-by: Wolfram Sang
Acked-by: Luotao Fu
Signed-off-by: Grant Likely -
This patch adds in support for the DS570 IP.
It's register compatible with the DS464, but adds support for 8/16/32 SPI.
The 8/16/32 support is added by attaching callbacks reading/writing the
proper amount of data. To indicate to the driver which amount of bits
to use a new field is introduced in the platform data struct.Acked-by: Grant Likely
Tested-by: John Linn
Signed-off-by: Richard Röjfors
Signed-off-by: Grant Likely -
This patch changes the out_(be)(8|16|32) and in_(be)(8|16|32) calls to 32 bits ioread/iowrite.
The read and write function are attached to the internal struct as callbacks, callback
is selected depending on endianess.This will also build on platforms not supporting the in/out calls for instance x86.
Acked-by: Grant Likely
Tested-by: John Linn
Signed-off-by: Richard Röjfors
Signed-off-by: Grant Likely -
This patch splits the xilinx_spi driver into a generic part and a
OF driver part.The reason for this is to later add in a platform driver as well.
Tested-by: John Linn
Signed-off-by: Richard Röjfors
Signed-off-by: Grant Likely
19 Nov, 2009
1 commit
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wl1251 supports also that NVS is stored in a separate EEPROM, add support
for that.kvalo: use platform data instead Kconfig and use kernel style
Signed-off-by: David-John Willis
Signed-off-by: Kalle Valo
Signed-off-by: John W. Linville
09 Nov, 2009
1 commit
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This patch was generated by
git grep -E -i -l 's(le|el)ct' | xargs -r perl -p -i -e 's/([Ss])(le|el)ct/$1elect/
with only skipping net/netfilter/xt_SECMARK.c and
include/linux/netfilter/xt_SECMARK.h which have a struct member called
selctx.Signed-off-by: Uwe Kleine-König
Signed-off-by: Jiri Kosina
05 Nov, 2009
1 commit
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Adds support for the dedicated SPI device on the Freescale MPC5200(b)
SoC.Signed-off-by: Grant Likely
27 Sep, 2009
1 commit
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* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
backlight: new driver for ADP5520/ADP5501 MFD PMICs
backlight: extend event support to also support poll()
backlight/eeepc-laptop: Update the backlight state when we change brightness
backlight/acpi: Update the backlight state when we change brightness
backlight: Allow drivers to update the core, and generate events on changes
backlight: switch to da903x driver to dev_pm_ops
backlight: Add support for the Avionic Design Xanthos backlight device.
backlight: spi driver for LMS283GF05 LCD
backlight: move hp680-bl's probe function to .devinit.text
backlight: Add support for new Apple machines.
backlight: mbp_nvidia_bl: add support for MacBookAir 1,1
backlight: Add WM831x backlight driverTrivial conflicts due to '#ifdef CONFIG_PM' differences in
drivers/video/backlight/da903x_bl.c
23 Sep, 2009
4 commits
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A GPIO driver for the Freescale MC33880 High/Low side switch
Signed-off-by: Richard Röjfors
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Support two new half-duplex SPI implementation restrictions, for links
that talk to TX-only or RX-only devices. (Existing half-duplex flavors
support both transfer directions, just not at the same time.)Move spi_async() into the spi.c core, and stop inlining it. Then make
that function perform error checks and reject messages that demand more
than the underlying controller can support.Based on a patch from Marek Szyprowski which did this only for the
bitbanged GPIO driver.Cc: Marek Szyprowski
Signed-off-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
With this patch spi drivers can use standard spi_driver.id_table and
MODULE_DEVICE_TABLE() mechanisms to bind against the devices. Just like
we do with I2C drivers.This is useful when a single driver supports several variants of devices
but it is not possible to detect them in run-time (like non-JEDEC chips
probing in drivers/mtd/devices/m25p80.c), and when platform_data usage is
overkill.This patch also makes life a lot easier on OpenFirmware platforms, since
with OF we extensively use proper device IDs in modaliases.Signed-off-by: Anton Vorontsov
Cc: David Brownell
Cc: David Woodhouse
Cc: Grant Likely
Cc: Jean Delvare
Cc: Ben Dooks
Cc: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add missing kernel-doc notation in spi.h for struct spi_master:
Warning(include/linux/spi/spi.h:289): No description found for parameter 'mode_bits'
Warning(include/linux/spi/spi.h:289): No description found for parameter 'flags'Signed-off-by: Randy Dunlap
Acked-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Sep, 2009
1 commit
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ADd support for the SPI part of LMS283GF05 LCD. The LCD uses SPI for
initialization and powerdown sequences. No further defails are specified
in the datasheet about the initialization/powerdown sequence, just the
magic numbers that have to be sent over SPI bus. This LCD can be found in
the Aeronix Zipit Z2 handheld.Signed-off-by: Marek Vasut
Signed-off-by: Andrew Morton
Signed-off-by: Richard Purdie
01 Jul, 2009
2 commits
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Add a new spi_master.flags word listing constraints relevant to that
controller. Define the first constraint bit: a half duplex restriction.
Include that constraint in the OMAP1 MicroWire controller driver.Have the mmc_spi host be the first customer of this flag. Its coding
relies heavily on full duplex transfers, so it must fail when the
underlying controller driver won't perform them.(The spi_write_then_read routine could use it too: use the
temporarily-withdrawn full-duplex speedup unless this flag is set, in
which case the existing code applies. Similarly, any spi_master
implementing only SPI_3WIRE should set the flag.)Signed-off-by: David Brownell
Cc: Marek Szyprowski
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add two new spi_device.mode bits to accomodate more protocol options, and
pass them through to usermode drivers:* SPI_NO_CS ... a second 3-wire variant, where the chipselect
line is removed instead of a data line; transfers are still
full duplex.This obviously has STRONG protocol implications since the
chipselect transitions can't be used to synchronize state
transitions with the SPI master.* SPI_READY ... defines open drain signal that's pulled low
to pause the clock. This defines a 5-wire variant (normal
4-wire SPI plus READY) and two 4-wire variants (READY plus
each of the 3-wire flavors).Such hardware flow control can be a big win. There are ADC
converters and flash chips that expose READY signals, but not
many host controllers support it today.The spi_bitbang code should be changed to use SPI_NO_CS instead of its
current nonportable hack. That's a mode most hardware can easily support
(unlike SPI_READY).Signed-off-by: David Brownell
Cc: "Paulraj, Sandeep"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Jun, 2009
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits)
Input: add driver for Synaptics I2C touchpad
Input: synaptics - add support for reporting x/y resolution
Input: ALPS - handle touchpoints buttons correctly
Input: gpio-keys - change timer to workqueue
Input: ads7846 - pin change interrupt support
Input: add support for touchscreen on W90P910 ARM platform
Input: appletouch - improve finger detection
Input: wacom - clear Intuos4 wheel data when finger leaves proximity
Input: ucb1400 - move static function from header into core
Input: add driver for EETI touchpanels
Input: ads7846 - more detailed model name in sysfs
Input: ads7846 - support swapping x and y axes
Input: ati_remote2 - use non-atomic bitops
Input: introduce lm8323 keypad driver
Input: psmouse - ESD workaround fix for OLPC XO touchpad
Input: tsc2007 - make sure platform provides get_pendown_state()
Input: uinput - flush all pending ff effects before destroying device
Input: simplify name handling for certain input handles
Input: serio - do not use deprecated dev.power.power_state
Input: wacom - add support for Intuos4 tablets
...
19 Jun, 2009
2 commits
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Move some common spi_setup() error checks into the SPI framework from the
spi_master controller drivers:- Add a new "mode_bits" field to spi_master
- Use that in spi_setup to validate the spi->mode value being
requested. Setting this new field is now mandatory for any
controller supporting more than vanilla SPI_MODE_0.- Update all spi_master drivers to:
* Initialize that field
* Remove current spi_setup() checks using that value.This is a net minor code shrink.
Signed-off-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Start moving some spi_setup() functionality into the SPI core from the
various spi_master controller drivers:- Make that function stop being an inline;
- Move two common idioms from drivers into that new function:
* Default bits_per_word to 8 if that field isn't set
* Issue a standardized dev_dbg() messageThis is a net minor source code shrink, and supports enhancments found in
some follow-up patches.Signed-off-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 Jun, 2009
1 commit
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This removes the dependency on GPIO framework and lets the SPI host
driver handle the chip select. The SPI host driver is required to keep
the CS active for the entire message unless cs_change says otherwise.
This patch collects the two/three single SPI transfers into a message.
Also the delay in read path in case use_dummy_writes are not used is
moved into the SPI host driver.Tested-by: Mike Rapoport
Tested-by: Andrey Yurovsky
Signed-off-by: Sebastian Andrzej Siewior
Acked-by: Dan Williams
Signed-off-by: John W. Linville
20 May, 2009
1 commit
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Signed-off-by: Michael Roth
Signed-off-by: Dmitry Torokhov
19 May, 2009
1 commit
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Conflicts:
drivers/scsi/fcoe/fcoe.c
07 May, 2009
1 commit
-
wl12xx is a driver for TI wl1251 802.11 chipset designed for embedded
devices, supporting both SDIO and SPI busses. Currently the driver
supports only SPI. Adding support 1253 (the 5 GHz version) should be
relatively easy. More information here:http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?contentId=4711&navigationId=12494&templateId=6123
(Collapsed original sequence of pre-merge patches into single commit for
initial merge. -- JWL)Signed-off-by: Kalle Valo
Signed-off-by: Bob Copeland
Signed-off-by: John W. Linville
22 Apr, 2009
1 commit
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This is a doc-only patch which I hope will reduce the number of
spi_master controller driver patches starting out with a common
implementation bug.(As in: almost every spi_master driver I see starts out with its
version of this bug. Sigh.)It just re-emphasizes that the setup() method may be called for one
device while a transfer is active on another ... which means that most
driver implementations shouldn't touch any registers.Signed-off-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Apr, 2009
1 commit
12 Apr, 2009
1 commit
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Noises can be introduced when LCD signals are being driven, some platforms
provide a signal to assist the synchronization of this sampling procedure.Signed-off-by: Eric Miao
Signed-off-by: Andrew Morton
Signed-off-by: Dmitry Torokhov
08 Apr, 2009
1 commit
07 Apr, 2009
1 commit
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Some SPI controllers have restrictions on DMAable buffers alignemt.
Currently if the buffer supplied by protocol driver is not properly
aligned, the controller silently performs transfer in PIO mode. Addition
of dma_alignment field to spi_master allows protocol drivers to perform
proper alignment.Signed-off-by: Mike Rapoport
Cc: Bryan Wu
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Apr, 2009
1 commit
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Change spi-gpio so that it is possible to drive SPI communications over
GPIO without the need for a chipselect signal.This is useful in very small setups where there's only one slave device
on the bus.This patch does not affect existing setups.
I use this for a tiny communication channel between an embedded device and
a microcontroller. There are not enough GPIOs available for chipselect
and it's not needed anyway in this case.Signed-off-by: Michael Buesch
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
