| Commit message (Collapse) | Author | Age | Files | Lines |
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As per the function signature.
Signed-off-by: George Shore <george@georgeshore.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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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 <george@georgeshore.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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FIFO depth is configurable for each implementation of DW core,
so add a depth detection for those interface drivers who don't set
the fifo_len explicitly
Signed-off-by: Feng Tang <feng.tang@intel.com>
Acked-by: Jean-Hugues Deschenes <jean-hugues.deschenes@octasic.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Section mismatch in reference from the function dw_spi_add_host()
to the function init_queue()
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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xilinx_spi presently makes some fairly questionable assumptions about I/O
routines, and attempts to assign ioread32/iowrite32 and friends directly
to its own internal function pointers. On many platforms these I/O
routines are macros or wrappers and not actual functions on their own,
resulting in things like:
ERROR: "ioread32be" [drivers/spi/xilinx_spi.ko] undefined!
ERROR: "iowrite32be" [drivers/spi/xilinx_spi.ko] undefined!
ERROR: "iowrite32" [drivers/spi/xilinx_spi.ko] undefined!
ERROR: "ioread32" [drivers/spi/xilinx_spi.ko] undefined!
If xilinx_spi wants to do this sort of casting, it needs to provide its
own wrappers for these, or change how it does accesses completely.
I've opted for the first approach, and the attached silly patch does
that. If someone with the hardware available wants to give the second
option a try that's ok too. In any event, the current code is broken for
at least: arm, avr32, blackfin, microblaze, mn10300, and sh.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Useful when debugging multiple spi channels.
Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Update the MSIOF driver to remove the architecture
speficic spi header file and add err.h. This makes
the driver compile on non-SH architectures.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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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 properly
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Make the driver wait at least for 1 jiffie before issuing the
warning, no matter what HZ is set to
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Since most of the chip-selects are simply going to be like
gpio_set_value, it would do good to have the same callback type
so that it could simply be made to point at gpio_set_value.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Header for platform specific stuff has been rename to include the SoC
type. Include the new header instead.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Add precautionary check before releasing memory region.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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The pointer to SPI rate source clock had better be the member of
driver local data structure rather than platform specific.
Also, remove definitions of variable 'sci' that are rendered
useless as a consequence.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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The instance of SPI clock for controller and that used for generating
signals ought to be independently handled.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Rename 'struct s3c64xx_spi_cntrlr_info' to lesser wordy
'struct s3c64xx_spi_info'
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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platform_get_irq returns -ENXIO on failure, so !irq was probably
always true. Make irq a signed variable and compare irq <= 0. Note
that a return value of zero is still handled as error even though this
could mean irq0.
This is a followup to 305b3228f9ff4d59f49e6d34a7034d44ee8ce2f0 that
changed the return value of platform_get_irq from 0 to -ENXIO on error.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Add support for the QSPI controller found some on Freescale/Motorola
Coldfire MCUs.
Full duplex, active high cs, spi modes 0-3 and word sizes 8-16 bits are
supported. The hardware drives the MISO, MOSI and SCLK lines, but the chip
selects are managed via GPIO and must be configured by the board code.
The QSPI controller has an 80 byte buffer which allows us to transfer up to 16
words at a time. For transfers longer than 16 words, we split the buffer in
half so we can update in one half while the controller is operating on the
other half. Interrupt latencies then ultimately limits our sustained thru-put
to something less than half the maximum speed supported by the part.
Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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The match_table field of the struct of_device_id is constant
in <linux/of_platform.h> so it is worth to make the initialization
data constant.
The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
...
const struct I2 *x;
...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
.x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>
Signed-off-by: Márton Németh <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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This patch adds support for a SPI master driver for the
DaVinci series of SOCs
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Philby John <pjohn@in.mvista.com>
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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* git://git.infradead.org/battery-2.6:
pmu_battery: Fix battery full reporting
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Prior to this patch, pmu_battery was unable to report battery full
status. This patch fixes the issue by adding a proper handling code
into pmu_bat_get_property(): if we're on AC and the battery isn't
charging, then the battery is considered full.
Signed-off-by: Thomas Champagne <lafeuil@gmail.com>
Acked-By: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
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/sys/bus/pci/drivers/megaraid_sas/poll_mode_io defaults to being
world-writable, which seems bad (letting any user affect kernel driver
behavior).
This turns off group and user write permissions, so that on typical
production systems only root can write to it.
Signed-off-by: Bryn M. Reeves <bmr@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux:
OMAP: DSS2: OMAPFB: fix crash when panel driver was not loaded
OMAP: DSS2: Reject scaling settings when they cannot be supported
OMAP: DSS2: Make check-delay-loops consistent
OMAP: DSS2: OMAPFB: fix omapfb_free_fbmem()
video/omap: add __init/__exit macros to drivers/video/omap/lcd_htcherald.c
OMAP: DSS2: Fix compile warning
MAINTAINERS: Combine DSS2 and OMAPFB2 into one entry
MAINTAINERS: change omapfb maintainer
OMAP: OMAPFB: add dummy release function for omapdss
OMAP: OMAPFB: fix clk_get for RFBI
OMAP: DSS2: RFBI: convert to new kfifo API
OMAP: DSS2: Fix crash when panel doesn't define enable_te()
OMAP: DSS2: Collect interrupt statistics
OMAP: DSS2: DSI: print debug DCS cmd in hex
OMAP: DSS2: DSI: fix VC channels in send_short and send_null
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If the panel's probe had failed, omapfb would still go on, eventually
crashing.
A better fix would be to handle each display properly, and leaving just
the failed display out. But that is a bigger change.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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If the scaling ratio is below 0.5 video output width can't be identical
to the display width. Reject such settings.
Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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Loops checking for certain condition were rather inconsistent.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Reported-by: Juha Leppanen <juha_motorsportcom@luukku.com>
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Fixes bug causing VRFB memory area to be released twice.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Reported-by: Eino-Ville Talvala <talvala@stanford.edu>
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Trivial patch which adds the __init/__exit macros to the module_init/
module_exit functions of
drivers/video/omap/lcd_htcherald.c
Please have a look at the small patch and either pull it through
your tree, or please ack' it so Jiri can pull it through the trivial
tree.
Patch against linux-next-tree, 22. Dez 08:38:18 CET 2009
but also present in linus tree.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Tony Lindgren <tony@atomide.com>
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Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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There isn't really any reason to divide those.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Acked-by: Imre Deak <imre.deak@nokia.com>
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This should fix:
WARNING: at drivers/base/core.c:131 device_release+0x68/0x7c()
Device 'omapdss' does not have a release() function, it is broken and
must be fixed.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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omapfb platform device was still used to get clocks inside rfbi.c
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Tested-by: Sergey Lapin <slapin@ossfans.org>
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Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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DSI driver didn't check if the panel driver actually implements
enable_te().
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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Collect interrupt statistics, printable via debugfs:
debugfs/omapdss/dispc_irq
debugfs/omapdss/dsi_irq
The counters are reset when printed.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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- dsi_vc_send_short() needs to use dest_per for the peripheral id
- dsi_vc_send_null() was always using channel id 0
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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There are two copies of list_sort() in the tree already, one in the DRM
code, another in ubifs. Now XFS needs this as well. Create a generic
list_sort() function from the ubifs version and convert existing users
to it so we don't end up with yet another copy in the tree.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Maybe this will stop people emailing me about it.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: retry link resume if necessary
ata_piix: enable 32bit PIO on SATA piix
sata_promise: don't classify overruns as HSM errors
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Interestingly, when SIDPR is used in ata_piix, writes to DET in
SControl sometimes get ignored leading to detection failure. Update
sata_link_resume() such that it reads back SControl after clearing DET
and retry if it's not clear.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: fengxiangjun <fengxiangjun@neusoft.com>
Reported-by: Jim Faulkner <jfaulkne@ccs.neu.edu>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Commit 871af1210f13966ab911ed2166e4ab2ce775b99d enabled 32bit PIO for
PATA piix but didn't for SATA. There's no reason not to use 32bit PIO
on SATA piix. Enable it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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When sata_promise encounters an overrun or underrun error it
translates that to a libata AC_ERR_HSM, causing a hard reset.
Since over/under-runs were thought to be rare and transient,
this action seemed reasonable.
Unfortunately it turns out that the controller throws overrun
errors when e.g. hal polls a CD or DVD writer containing blank
media, causing long sequences of hard resets and retries before
EH finally gives up.
This patch updates sata_promise to classify over/under-runs as
AC_ERR_OTHER instead. This allows libata EH and upper layers to
retry or fail the operation as they see fit without the disruption
caused by repeated hard resets.
This fixes a problem using a DVD-RAM drive with sata_promise,
reported by Thomas Schorpp. I also tested it on a DVD-RW drive.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: thomas schorpp <thomas.schorpp@googlemail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: Ensure ARMv6/7 mm files are built using appropriate assembler options
ARM: Fix wrong dmb
ARM: 5874/1: serial21285: fix disable_irq-from-interrupt-handler deadlock
ARM: 5873/1: ARM: Fix the reset logic for ARM RealView boards
ARM: 5872/1: ARM: include needed linux/cpu.h in asm/cpu.h
ARM: 5871/1: arch/arm: Fix build failure for lpd7a404_defconfig caused by missing includes
ARM: 5870/1: arch/arm: Fix build failure for defconfigs without CONFIG_ISA_DMA_API set
ARM: 5868/1: ARM: fix "BUG: using smp_processor_id() in preemptible code"
ARM: 5867/1: Update U300 defconfig
ARM: 5866/1: arm ptrace: use unsigned types for kernel pt_regs
[ARM] pxa: fix strange characters in zaurus gpio .desc
ARM: add missing recvmmsg syscall number
[ARM] pxa: fix compiler warnings of unused variable 'id' in cpu_is_pxa9*()
[ARM] pxa: update pwm_backlight->notify() to include missed 'struct device *'
[ARM] pxa: enable L2 if present in XSC3
[ARM] pxa: do not enable L2 after MMU is enabled
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A kernel with both ARMv6 and ARMv7 selected results in build errors.
Fix this by specifying the proper architectures for these assembly
files.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The __kuser_cmpxchg code uses an ARMv6 dmb instruction, rather than
one based upon the architecture being built for. Switch to using
the macro provided for this purpose, which also eliminates the
need for an ifdef.
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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