Commit Graph

41 Commits

Author SHA1 Message Date
Linus Torvalds b4b9034132 Merge branch 'genirq' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'genirq' of master.kernel.org:/home/rmk/linux-2.6-arm: (24 commits)
  [ARM] 3683/2:  ARM: Convert at91rm9200 to generic irq handling
  [ARM] 3682/2:  ARM: Convert ixp4xx to generic irq handling
  [ARM] 3702/1: ARM: Convert ixp23xx to generic irq handling
  [ARM] 3701/1: ARM: Convert plat-omap to generic irq handling
  [ARM] 3700/1: ARM: Convert lh7a40x to generic irq handling
  [ARM] 3699/1: ARM: Convert s3c2410 to generic irq handling
  [ARM] 3698/1: ARM: Convert sa1100 to generic irq handling
  [ARM] 3697/1: ARM: Convert shark to generic irq handling
  [ARM] 3696/1: ARM: Convert clps711x to generic irq handling
  [ARM] 3694/1: ARM: Convert ecard driver to generic irq handling
  [ARM] 3693/1: ARM: Convert omap1 to generic irq handling
  [ARM] 3691/1: ARM: Convert imx to generic irq handling
  [ARM] 3688/1: ARM: Convert clps7500 to generic irq handling
  [ARM] 3687/1: ARM: Convert integrator to generic irq handling
  [ARM] 3685/1: ARM: Convert pxa to generic irq handling
  [ARM] 3684/1: ARM: Convert l7200 to generic irq handling
  [ARM] 3681/1: ARM: Convert ixp2000 to generic irq handling
  [ARM] 3680/1: ARM: Convert footbridge to generic irq handling
  [ARM] 3695/1: ARM drivers/pcmcia: Fixup includes
  [ARM] 3689/1: ARM drivers/input/touchscreen: Fixup includes
  ...

Manual conflict resolved in kernel/irq/handle.c (butt-ugly ARM tickless
code).
2006-07-02 15:07:45 -07:00
Thomas Gleixner dace145374 [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:50 -07:00
Thomas Gleixner e6e3c3be8a [ARM] 3689/1: ARM drivers/input/touchscreen: Fixup includes
Patch from Thomas Gleixner

From: Thomas Gleixner <tglx@linutronix.de>

Include the generic header file instead of the ARM specific one.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-01 22:32:15 +01:00
Dmitry Torokhov a21466cc77 Input: fix potential overflows in driver/input/touchscreen
Change all sprintfs into snprintfs to make sure we won't stomp on
data adjacent to our buffers.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-06-26 01:46:04 -04:00
Matt Mackall 6ceab8a936 [PATCH] random: remove redundant SA_SAMPLE_RANDOM from touchscreen drivers
The core input layer is already calling add_input_randomness.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:00 -07:00
David Brownell 9084533e79 [PATCH] ads7846 conversion accuracy
This improves accuracy of the touchscreen and hwmon sensor readings,
addressing an issue noted by Imre Deak: there's an extra bit written before
the sample (12 bits) gets written out.

It also catches up to various comments, and makes the /proc/interrupts
entry sensible again.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Imre Deak <imre.deak@nokia.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-26 11:55:46 -07:00
Linus Torvalds f9cc8475e7 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 3490/1: i.MX: move uart resources to board files
  [ARM] 3488/1: make icedcc_putc do the right thing
  [ARM] 3487/1: IXP4xx: Support non-PCI systems
  [ARM] 3486/1: Mark memory as clobbered by the ARM _syscallX() macros
2006-05-04 14:52:43 -07:00
Markus Gutschke cd95842ca0 [ARM] 3486/1: Mark memory as clobbered by the ARM _syscallX() macros
Patch from Markus Gutschke

In order to prevent gcc from making incorrect optimizations, all asm()
statements that define system calls should report memory as
clobbered. Recent versions of the headers for i386 have been changed
accordingly, but the ARM headers are still defective.

This patch fixes the bug tracked at
http://bugzilla.kernel.org/show_bug.cgi?id=6205

Signed-off-by: Markus Gutschke <markus@google.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-30 15:34:29 +01:00
Imre Deak d5b415c95f Input: ads7846 - improve filtering for thumb press accuracy
Providing more accurate coordinates for thumb press requires additional
steps in the filtering logic:

- Ignore samples found invalid by the debouncing logic, or the ones that
  have out of bound pressure value.
- Add a parameter to repeat debouncing, so that more then two consecutive
  good readings are required for a valid sample.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Juha Yrjola <juha.yrjola@nokia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-26 00:13:18 -04:00
Imre Deak ae82d5ab05 Input: ads7846 - report 0 pressure value along with pen up event
X touchscreen drivers that don't interpret the designated pen up message
assume a pen up event from a pressure value 0. For these we generate a
pressure 0 message along with the pen up message.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Juha Yrjola <juha.yrjola@nokia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-26 00:12:14 -04:00
Imre Deak c9e617a563 Input: ads7846 - handle IRQs that were latched during disabled IRQs
The pen down IRQ will toggle during each X,Y,Z measurement cycle.
Even though the IRQ is disabled it will be latched and delivered
when after enable_irq. Thus in the IRQ handler we must avoid
starting a new measurement cycle when such an "unwanted" IRQ happens.
Add a get_pendown_state platform function, which will probably
determine this by reading the current GPIO level of the pen IRQ pin.

Move the IRQ reenabling from the SPI RX function to the timer. After
the last power down message the pen IRQ pin is still active for a
while and get_pendown_state would report incorrectly a pen down state.

When suspending we should check the ts->pending flag instead of
ts->pendown, since the timer can be pending regardless of ts->pendown.
Also if ts->pending is set we can be sure that the timer is running,
so no need to rearm it. Similarly if ts->pending is not set we can
be sure that the IRQ is enabled (and the timer is not).

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-11 23:44:05 -04:00
Imre Deak 7de90a8cb9 Input: ads7846 - miscellaneous fixes
- Add disable attribute to support device locking mode where
  unintentional touch event shouldn't wake up the system;
- Update comments;
- Add missing spin_lock_init;
- Do device resume with the lock held;
- Do cleanup calls / free memory in the reverse order of initialization.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-11 23:43:55 -04:00
Juha Yrjola c4febb94da Input: ads7846 - use msleep() instead of udelay() in suspend
Sometimes a polling loop had a hard time changing state without
pre-emption enabled.  Use msleep instead, it's better anyway.

Signed-off-by: Juha Yrjola <juha.yrjola@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-11 23:42:25 -04:00
Imre Deak 0b7018aae7 Input: ads7846 - debouncing and rudimentary sample filtering
Some touchscreens seem to oscillate heavily for a while after touching
the screen.  Implement support for sampling the screen until we get two
consecutive values that are close enough.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Juha Yrjola <juha.yrjola@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-11 23:42:03 -04:00
Imre Deak 53a0ef89e9 Input: ads7846 - power down ADC a bit later
Submit a seperate request for powering down the ADC in ads7846,
doing it after the last read request.  Otherwise some of the read
values are incorrect.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Juha Yrjola <juha.yrjola@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-11 23:41:49 -04:00
Imre Deak 438f2a7401 Input: ads7846 - add pen_down sysfs attribute
It's handy for userspace diagnostics to see the pen down status, to
see whether the touchscreen is "stuck" (shortcircuited).

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Juha Yrjola <juha.yrjola@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-11 23:41:32 -04:00
Andrew Morton 3ac8bf077d [PATCH] ads7846: sparc32 warning fix
drivers/input/touchscreen/ads7846.c: In function `ads7846_read12_ser':
drivers/input/touchscreen/ads7846.c:207: warning: implicit declaration of function `disable_irq'
drivers/input/touchscreen/ads7846.c:209: warning: implicit declaration of function `enable_irq'

Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:56:57 -08:00
Andrew Morton 4cae59d2e8 [PATCH] ads7846 build fix
sparc32:

drivers/input/touchscreen/ads7846.c: In function `ads7846_read12_ser':
drivers/input/touchscreen/ads7846.c:206: warning: implicit declaration of function `disable_irq'
drivers/input/touchscreen/ads7846.c:208: warning: implicit declaration of function `enable_irq'

Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:55 -08:00
David Brownell d93f70b2d7 Input: ads7846 - assorted updates
This updates the ads7846 touchscreen driver:
  - to allow faster clocking (this driver doesn't push sample rates);
  - bugfixes the conversion of spi_transfer to lists;
  - some dma-unsafe command buffers are fixed.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-02-15 00:49:35 -05:00
Dmitry Torokhov a90f7e98b7 Input: ads7846 - convert to to dynamic input_dev allocation
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-02-15 00:49:22 -05:00
Linus Torvalds d20e6336ea Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2006-01-31 21:18:17 -08:00
Adrian Bunk ffc6b529e8 Input: make needlessly global code static
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-01-29 21:51:07 -05:00
Russell King f43aaba191 [ARM] Convert request_irq+set_irq_type to request_irq with SA_TRIGGER
There's no need to have request_irq followed by set_irq_type.
Just use request_irq with the appropriate SA_TRIGGER flags.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-19 12:26:57 +00:00
Paul Mundt 0025835cf2 [PATCH] sh: consolidate hp620/hp680/hp690 targets into hp6xx
Most of the reasons for keeping these separate before was due to hp690
discontig, and since we have a workaround for that now (abusing some shadow
space so everything is magically contiguous), there's no reason to keep the
targets separate.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-16 23:15:27 -08:00
Vitaly Wool 8275c642cc [PATCH] spi: use linked lists rather than an array
This makes the SPI core and its users access transfers in the SPI message
structure as linked list not as an array, as discussed on LKML.

From: David Brownell <dbrownell@users.sourceforge.net>

  Updates including doc, bugfixes to the list code, add
  spi_message_add_tail().  Plus, initialize things _before_ grabbing the
  locks in some cases (in case it grows more expensive).  This also merges
  some bitbang updates of mine that didn't yet make it into the mm tree.

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Dmitry Pervushin <dpervushin@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13 16:29:56 -08:00
David Brownell 2e5a7bd978 [PATCH] spi: ads7836 uses spi_driver
This updates the ads7864 driver to use the new "spi_driver" struct, and
includes some minor unrelated cleanup.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13 16:29:55 -08:00
David Brownell ffa458c1bd [PATCH] spi: ads7846 driver
This is a driver for the ADS7846 touchscreen sensor, derived from
the corgi_ts and omap_ts drivers.  Key differences from those two:

  - Uses the new SPI framework (minimalist version)
  - <linux/spi/ads7846.h> abstracts board-specific touchscreen info
  - Sysfs attributes for the temperature and voltage sensors
  - Uses fewer ARM-specific IRQ primitives

The temperature and voltage sensors show up in sysfs like this:

  $ pwd
  /sys/devices/platform/omap-uwire/spi2.0
  $ ls
  bus@          input:event0@ power/        temp1         vbatt
  driver@       modalias      temp0         vaux
  $ cat modalias
  ads7846
  $ cat temp0
  991
  $ cat temp1
  1177
  $

So far only basic testing has been done.  There's a fair amount of hardware
that uses this sensor, and which also runs Linux, which should eventually
be able to use this driver.

One portability note may be of special interest.  It turns out that not all
SPI controllers are happy issuing requests that do things like "write 8 bit
command, read 12 bit response".  Most of them seem happy to handle various
word sizes, so the issue isn't "12 bit response" but rather "different rx
and tx write sizes", despite that being a common MicroWire convention.  So
this version of the driver no longer reads 12 bit native-endian words; it
reads 16-bit big-endian responses, then byteswaps them and shifts the
results to discard the noise.

Signed-off-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13 16:29:54 -08:00
Russell King 3ae5eaec1d [DRIVER MODEL] Convert platform drivers to use struct platform_driver
This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-09 22:32:44 +00:00
Russell King d052d1beff Create platform_device.h to contain all the platform device details.
Convert everyone who uses platform_bus_type to include
linux/platform_device.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-29 19:07:23 +01:00
Russell King 9480e307cd [PATCH] DRIVER MODEL: Get rid of the obsolete tri-level suspend/resume callbacks
In PM v1, all devices were called at SUSPEND_DISABLE level.  Then
all devices were called at SUSPEND_SAVE_STATE level, and finally
SUSPEND_POWER_DOWN level.  However, with PM v2, to maintain
compatibility for platform devices, I arranged for the PM v2
suspend/resume callbacks to call the old PM v1 suspend/resume
callbacks three times with each level in order so that existing
drivers continued to work.

Since this is obsolete infrastructure which is no longer necessary,
we can remove it.  Here's an (untested) patch to do exactly that.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28 09:52:56 -07:00
Dmitry Torokhov eca1ed196c [PATCH] drivers/input/touchscreen: convert to dynamic input_dev allocation
Input: convert drivers/input/touchscreen to dynamic input_dev allocation

This is required for input_dev sysfs integration

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28 09:52:53 -07:00
Richard Purdie 513b6e1afa [PATCH] SharpSL: Abstract c7x0 specifics from Corgi Touchscreen driver
Separate out the Sharp Zaurus c7x0 series specific code from the Corgi
Touchscreen driver.  Use the new functions in corgi_lcd.c via sharpsl.h for
hsync handling and pass the IRQ as a platform device resource.  Move a
function prototype into the w100fb header file where it belongs.

This enables the driver to be used by the Zaurus cxx00 series.

Signed-Off-by: Richard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-13 08:22:31 -07:00
Richard Purdie 41b1bce80b [PATCH] w100fb: Update corgi platform code to match new driver
This patch moves the platform specific Sharp SL-C7x0 LCD code from the
w100fb driver into a more appropriate place and updates the Corgi code to
match the new w100fb driver.

It also updates the corgi touchscreen code to match the new simplified
interface available from w100fb.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:53 -07:00
Richard Purdie 8cc3c7af42 [PATCH] Corgi touchscreen: Fix a pmu bug
Corgi Touchscreen bugfix.  If the PMU isn't running, the register needs to
be set to a sane value rather than reusing some random value.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:53 -07:00
Richard Purdie 74b74890bc [PATCH] Corgi Touchscreen: Code cleanup / fixes
Clean up some Corgi Touchscreen logic and merge the repeat calls to
w100fb_blanking() in anticipation of the w100fb patch.

Fix a pm_message_t reference.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:53 -07:00
Richard Purdie 347e4843fa [PATCH] Corgi Touchscreen: Allow the driver to share the PMU
The Corgi Touchscreen driver uses the PMU as an accurate timing source which
conflicts with its usage for performance monitoring.  This patch allows it to
be shared with other users such as oprofile.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:53 -07:00
Michael Prokop 153ab429ca Input: elo - fix help in Kconfig (wrong module name)
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-07-11 01:09:10 -05:00
Dmitry Torokhov af24604127 Input: remove user counters from drivers/input/touchscreen since
input core takes care of calling open and close methods
       only when needed.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-05-29 02:29:45 -05:00
Dmitry Torokhov de1b963a41 Input: whitespace fixes in drivers/input/touchscreen
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-05-29 02:28:50 -05:00
Dmitry Torokhov a07461ec0c Input: gunze - fix out-of-bound array access reported by Adrian Bunk.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-05-28 02:12:00 -05:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00