| Commit message (Collapse) | Author | Age |
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For situations where double buffering is needed (such as the
current Android) make the screen virtual y size twice the
LCD size so that there is space for a second screen that
can be switched to.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Change the area available for consitent DMA allocations from the
default to 8MiB to allow drivers such as the framebuffer to get
more memory (for situations where larger virtual screen resolutions
are needed).
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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This adds the I²C board information for the WM8987 used in the SmartQ as audio
codec and adds the I²C/I²S platform drivers.
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The following change makes the framebuffer work on SmartQ5. There are
still some problems with ADC, so this patch alone won't make the device
run (or even give a working fb), but it's one issue less to think about.
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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SmartQ boards
This patch changes the platform data definitions of the wifi and iNAND chip on
the SmartQ 5 and 7 to indicate that they don't have a CD line available and are
thus hard-wired to the SDHCI data lines.
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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This shares the common LCD control platform definition used in the SmartQ 5 and
7. This also corrects it as a GPIO bitbanged SPI device instead of an I²C one,
which was wrong.
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Register SHDCI devices
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
[ben-linux@fluff.org: rewrite header[
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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This patch is based on "[PATCH v2] Support for Real6410"
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Add support for CoreWind Real6410 board, based on Samsung s3c6410 processor.
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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This PL008 among all other variables named PL080 doesn't seem
right. Fix it. Also add some missing defined that I use in the
new PL08x driver.
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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This patch fixes on following build warning.
warning: (PLAT_S5P && (ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PC100 ||
ARCH_S5PV210 || ARCH_S5PV310) || ARCH_S3C64XX && <choice>)
selects PLAT_SAMSUNG which has unmet direct dependencies
(ARCH_S3C2410 || ARCH_S3C24A0 || ARCH_S3C64XX)
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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* 'for-linus/i2c-2636' of git://git.fluff.org/bjdooks/linux:
i2c/nuc900: add i2c driver support for nuc900
i2c: Enable NXP LPC support in Kconfig
i2c-pxa: fix compiler warning, due to missing const
i2c: davinci: bus recovery procedure to clear the bus
i2c: davinci: Add cpufreq support
i2c: davinci: Add suspend/resume support
i2c: davinci: Add helper functions for power management
i2c: davinci: misc. cleanups: remove MOD_REG_BIT and IO_ADDRESS usage
i2c: davinci: Fix smbus Oops with AIC33 usage
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This patch is to add i2c driver support for nuc900.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.org>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Reviewed-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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NXP LPC series processors use the IP3204 I2C block shared with the
Philips PNX4008 processor.
Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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This patch adds the missing const to "struct platform_device_id" to fix
this warning:
/home/frogger/pengutronix/linux/linux-2.6/drivers/i2c/busses/i2c-pxa.c:
In function 'i2c_pxa_probe':
/home/frogger/pengutronix/linux/linux-2.6/drivers/i2c/busses/i2c-pxa.c:1004:
warning: initialization discards qualifiers from pointer target type
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Roel Kluin <roel.kluin@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci into for-2636/i2c/davinci
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Come out of i2c time out condition by following the
bus recovery procedure outlined in the i2c protocol v3 spec.
The kernel must be robust enough to gracefully recover
from i2c bus failure without having to reset the machine.
This is done by first NACKing the slave, pulsing the SCL
line 9 times and then sending the stop command.
This patch has been tested on a DM6446 and DM355
Signed-off-by: Philby John <pjohn@in.mvista.com>
Signed-off-by: Srinivasan, Nageswari <nageswari@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
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Add cpufreq support for DaVinci I2C driver.
Tested on DA850/OMAP-L138 EVM.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
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Add suspend and resume callbacks to DaVinci I2C driver.
This has been tested on DA850/OMAP-L138 EVM.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
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Add i2c reset control and clock divider calculation functions
which will be useful for power management features.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
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Cleanup the DaVinci I2C driver. Remove MOD_REG_BIT macro.
Also use ioremap instead of IO_ADDRESS macro.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
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This fixes Oops at kernel startup while "scanning" for TLV320AIC23IDx
addresses.
Additional fix from Sudhakar Rajashekhara: I think 'first byte set'
should come after the write because an I2C transaction is being
carried out before configuring the I2C mode register (which has bits
to configure Master, Start condition etc), which causes undefined
behavior.
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Alexander Vasiliev <alexvasiljev@gmail.com>
Signed-off-by: Brad Griffis <bgriffis@ti.com>
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
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ARCH_DMA_MINALIGN
ARCH_KMALLOC_MINALIGN was renamed to ARCH_DMA_MINALIGN (the commit
a6eb9fe105d5de0053b261148cee56c94b4720ca).
ARCH_DMA_MINALIGN must be defined instead of ARCH_KMALLOC_MINALIGN to
ensure that kmalloc'ed buffer is DMA-safe.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
spi/amba_pl022: Fix probe and remove hook section annotations.
spi/mpc5121: change annotations for probe and remove functions
spi/bitbang: reinitialize transfer parameters for every message
spi/spi-gpio: add support for controllers without MISO or MOSI pin
spi/bitbang: add support for SPI_MASTER_NO_{TX, RX} modes
SPI100k: Fix 8-bit and RX-only transfers
spi/mmc_spi: mmc_spi adaptations for SPI bus locking API
spi/mmc_spi: SPI bus locking API, using mutex
Fix trivial conflict in drivers/spi/mpc512x_psc_spi.c due to 'struct
of_device' => 'struct platform_device' rename and __init/__exit to
__devinit/__devexit fix.
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Probe and remove hooks belong in the __devinit and __devexit sections
respectively. This patch fixes incorrect annotations on the pl022 spi
driver.
Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Change annotations from __init/__exit to __devinit/__devexit
to get rid of section mismatch warning.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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This patch fixes the setup_transfer logic to account for the case where
multiple messages to different SPI devices are in the queue simultaneously.
With the current logic, the second message in the queue will end up
using the transfer parameters for the previous message in the queue.
The fix is to reinitialize the transfer parameters for each message
rather than only once on the first message.
Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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There are some boards that do not strictly follow SPI standard and use
only 3 wires (SCLK, MOSI or MISO, SS) for connecting some simple auxiliary
chips and controls them with GPIO based 'spi controller'. In this
configuration the MISO or MOSI line is missing (it is not required if the
chip does not transfer any data back to host or host only reads data from
chip).
This patch adds support for such non-standard configuration in GPIO-based
SPI controller. It has been tested in configuration without MISO pin.
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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This patch adds a new flags argument to bitbang_txrx_be_cpha0 and
bitbang_txrx_be_cpha1 transfer functions. This enables support for
SPI_MASTER_NO_{TX,RX} transfer modes. The change should have no impact
on speed of the existing drivers. bitbank_txrx_* functions are usually
inlined into the drivers. When the argument is equal to constant zero,
the optimizer would be able to eliminate the dead code (flags checks)
easily. Tested on ARM and GCC 4.4.x and in all cases the checks were
eliminated in the inlined function.
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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This change fixes 8-bit transfers and RX-only transfers. The
SPI100k framework requires minimum 16-bit words to be written, so 8-bit
transfers must be shited by 8 bits and sent out as a 16-bit word.
Additionally, receive-only transfers were failing due to the
perceived need to fill the TX buffer with something. This is in
fact not needed.
Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Modification of the mmc_spi driver to use the SPI bus locking API.
With this, the mmc_spi driver can be used together with other SPI
devices on the same SPI bus. The exclusive access to the SPI bus is
now managed in the SPI layer. The counting of chip selects in the probe
function is no longer needed.
Signed-off-by: Ernst Schwab <eschwab@online.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Matt Fleming <matt@console-pimps.org>
Tested-by: Antonio Ospite <ospite@studenti.unina.it>
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SPI bus locking API to allow exclusive access to the SPI bus, especially, but
not limited to, for the mmc_spi driver.
Coded according to an outline from Grant Likely; here is his
specification (accidentally swapped function names corrected):
It requires 3 things to be added to struct spi_master.
- 1 Mutex
- 1 spin lock
- 1 flag.
The mutex protects spi_sync, and provides sleeping "for free"
The spinlock protects the atomic spi_async call.
The flag is set when the lock is obtained, and checked while holding
the spinlock in spi_async(). If the flag is checked, then spi_async()
must fail immediately.
The current runtime API looks like this:
spi_async(struct spi_device*, struct spi_message*);
spi_sync(struct spi_device*, struct spi_message*);
The API needs to be extended to this:
spi_async(struct spi_device*, struct spi_message*)
spi_sync(struct spi_device*, struct spi_message*)
spi_bus_lock(struct spi_master*) /* although struct spi_device* might
be easier */
spi_bus_unlock(struct spi_master*)
spi_async_locked(struct spi_device*, struct spi_message*)
spi_sync_locked(struct spi_device*, struct spi_message*)
Drivers can only call the last two if they already hold the spi_master_lock().
spi_bus_lock() obtains the mutex, obtains the spin lock, sets the
flag, and releases the spin lock before returning. It doesn't even
need to sleep while waiting for "in-flight" spi_transactions to
complete because its purpose is to guarantee no additional
transactions are added. It does not guarantee that the bus is idle.
spi_bus_unlock() clears the flag and releases the mutex, which will
wake up any waiters.
The difference between spi_async() and spi_async_locked() is that the
locked version bypasses the check of the lock flag. Both versions
need to obtain the spinlock.
The difference between spi_sync() and spi_sync_locked() is that
spi_sync() must hold the mutex while enqueuing a new transfer.
spi_sync_locked() doesn't because the mutex is already held. Note
however that spi_sync must *not* continue to hold the mutex while
waiting for the transfer to complete, otherwise only one transfer
could be queued up at a time!
Almost no code needs to be written. The current spi_async() and
spi_sync() can probably be renamed to __spi_async() and __spi_sync()
so that spi_async(), spi_sync(), spi_async_locked() and
spi_sync_locked() can just become wrappers around the common code.
spi_sync() is protected by a mutex because it can sleep
spi_async() needs to be protected with a flag and a spinlock because
it can be called atomically and must not sleep
Signed-off-by: Ernst Schwab <eschwab@online.de>
[grant.likely@secretlab.ca: use spin_lock_irqsave()]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Matt Fleming <matt@console-pimps.org>
Tested-by: Antonio Ospite <ospite@studenti.unina.it>
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We do in fact need to unmap the page table _before_ doing the whole
stack guard page logic, because if it is needed (mainly 32-bit x86 with
PAE and CONFIG_HIGHPTE, but other architectures may use it too) then it
will do a kmap_atomic/kunmap_atomic.
And those kmaps will create an atomic region that we cannot do
allocations in. However, the whole stack expand code will need to do
anon_vma_prepare() and vma_lock_anon_vma() and they cannot do that in an
atomic region.
Now, a better model might actually be to do the anon_vma_prepare() when
_creating_ a VM_GROWSDOWN segment, and not have to worry about any of
this at page fault time. But in the meantime, this is the
straightforward fix for the issue.
See https://bugzilla.kernel.org/show_bug.cgi?id=16588 for details.
Reported-by: Wylda <wylda@volny.cz>
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Reported-by: Mike Pagano <mpagano@gentoo.org>
Reported-by: François Valenduc <francois.valenduc@tvcablenet.be>
Tested-by: Ed Tomlinson <edt@aei.ca>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Greg KH <gregkh@suse.de>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Add latest crop of syscalls
[IA64] Fix 64-bit atomic routines to return "long"
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Three new syscalls for 2.6.36: prlimit64, fanotify_init and
fanotify_mark. Wire up the ia64 syscall table for them.
Signed-off-by: Tony Luck <tony.luck@intel.com>
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These have been broken (returning "int") since the dawn of
time. But there were no users that needed the whole value
until commit
424acaaeb3a3932d64a9b4bd59df6cf72c22d8f3
rwsem: wake queued readers when writer blocks on active read lock
made this change:
- (rwsem_atomic_update(0, sem) & RWSEM_ACTIVE_MASK))
- /* Someone grabbed the sem already */
+ rwsem_atomic_update(0, sem) < RWSEM_WAITING_BIAS)
+ /* Someone grabbed the sem for write already */
RWSEM_ACTIVE_MASK is 0xffffffffL, so the old code only looked
at the low order 32-bits. The new code needs to see all 64 bits.
Signed-off-by: Tony Luck <tony.luck@intel.com>
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git://codeaurora.org/quic/kernel/dwalker/linux-msm
* 'msm-mmc_sdcc' of git://codeaurora.org/quic/kernel/dwalker/linux-msm:
mmc: msm_sdcc: Rename config MMC_MSM7X00A to MMC_MSM
mmc: msm_sdcc: Compile the driver for msm7x30
mmc: msm: fix up build breakage on !PM
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SD/MMC host controller driver is same for all MSM and QSD
platforms. Hence, rename the config to reflect the same.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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The controller base address is referred from platform
resource instead of using #defines. This fixes the
compilation error when driver is compiled for msm7x30.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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with PM disabled I get the following compile error,
drivers/built-in.o: In function `msmsdcc_resume':
linux-2.6/drivers/mmc/host/msm_sdcc.c:1352: undefined reference to `mmc_resume_host'
drivers/built-in.o: In function `msmsdcc_suspend':
linux-2.6/drivers/mmc/host/msm_sdcc.c:1330: undefined reference to `mmc_suspend_host'
This adds ifdefs around the suspend/resume functions to prevent this.
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft-2.6
* 'stable/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft-2.6:
firmware: ibft depends on SCSI
ibft: Kernel oops when rmmoding iscsi_ibft with no iBFT present.
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Prevent build errors when SCSI is not enabled:
iscsi_ibft.c:(.init.text+0x548d): undefined reference to `iscsi_boot_create_initiator'
iscsi_ibft.c:(.init.text+0x54a9): undefined reference to `iscsi_boot_create_ethernet'
iscsi_ibft.c:(.init.text+0x54c5): undefined reference to `iscsi_boot_create_target'
iscsi_ibft.c:(.init.text+0x55ff): undefined reference to `iscsi_boot_destroy_kset'
iscsi_ibft.c:(.init.text+0x561e): undefined reference to `iscsi_boot_create_kset'
iscsi_ibft.c:(.exit.text+0xe2c): undefined reference to `iscsi_boot_destroy_kset'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
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We failed to check to see if actually allocated structures
to contain the iBFT structure and went ahead to dereference it.
This patch fixes the OOPS.
Reported-by: "Jayamohan Kalickal" <jayamohank@serverengines.com>
Tested-by: "Jayamohan Kalickal" <jayamohank@serverengines.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
Signed-off-by: Peter Jones <pjones@redhat.com>
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* git://git.infradead.org/~dwmw2/ideapad-2.6:
Call acpi_video_register() in intel_opregion_init() failure path
ideapad: Only allow camera state to be set to 0 or 1
ideapad: Stop using global variables
Add Lenovo ideapad driver
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If i915 opregion is present, the acpi_video driver doesn't register
itself immediately; it defers that until the i915 opregion code is done.
But if that *fails*, the acpi_video driver was never getting registered.
And thus I have no backlight support on my Lenovo IdeaPad S10-3.
Call acpi_video_register() on the failure path, and it works again.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Matthew Garrett <mjg@redhat.com>
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Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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