Commit Graph

383 Commits

Author SHA1 Message Date
Jean Delvare
6342064cad i2c-i801: Implement I2C block read support
I2C block read is supported since the ICH5. I couldn't get it to work
using the block buffer, so it's using the old-style byte-by-byte mode
for now.

Note: I'm also updating the driver author... The i2c-i801 driver was
really written by Mark Studebaker, even though he based his work on
the i2c-piix4 driver which was written by Philip Edelbrock.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:50 +01:00
Jean Delvare
a0921b6c07 i2c-i801: Clear special mode bits as needed
Clear special mode bits (PEC, block buffer) at driver load time,
you never know in which state the device was left by its last user.

Also make sure that we reset the block buffer mode at the end of every
transaction, not only when PEC was used.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:50 +01:00
Jean Delvare
369f6f4aec i2c-i801: More explicit names for chip features
Use separate flags with explicit names to describe the features of
the ICH chip.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:50 +01:00
Jean Delvare
ae7b0497b8 i2c-i801: Document which chip support what feature
Provide a clearer documentation of which additional features each
ICH chip support, and which of these the driver supports.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:49 +01:00
Jean Delvare
0f79b72e45 i2c: Deprecate drivers for I2C buses on video adapters
The framebuffer drivers for these pieces of hardware include support
for the DDC/I2C buses, so there is no need for separate drivers.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:47 +01:00
Jean Delvare
2caeac8104 i2c: Don't uselessly set i2c_adapter.retries
I2C adapter drivers are supposed to handle retries on nack by themselves
if they do, so there's no point in setting .retries if they don't.

As this retry mechanism is going away (at least in its current form),
clean this up now so that we don't get build failures later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:47 +01:00
eric miao
59d70df025 i2c-pxa: Remove hardcoded #ifdef and use cpu_is_pxa27x
remove #ifdef CONFIG_PXA27x .. #endif and use cpu_is_pxaXXXX() macros
so that a single binary can support PXA25x/PXA27x/PXA3xx at run-time.

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:46 +01:00
Adrian Bunk
7e8b99251b i2c: some overdue driver removal
This patch contains the overdue removal of three I2C drivers.

[JD: In fact only i2c-ixp4xx can be removed at the moment, the other two
platforms don't implement the generic GPIO layer yet.]

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:46 +01:00
Jean Delvare
569be443e3 i2c-stub: Use a single array for byte and word operations
This mimics the behavior of actual SMBus chips better.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
2008-01-27 18:14:45 +01:00
Stefan Roese
217bcec442 i2c-ibm_iic: Whitespace cleanup
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:45 +01:00
Olof Johansson
ccf60d8571 i2c-pasemi: use i2c_add_numbered_adapter()
Use numbered adapter registration to always have the same hardware bus
show up at the same number.

PWRficient 1682M has three buses, they are all on the same PCI device but
different functions. So do the simple thing and register them based on
function number. Future products, if having a different number of busses,
are expected to have similar behaviour w.r.t. device/function layout.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:44 +01:00
Jean Delvare
541b6a7a69 i2c-nforce2: The nForce2 can do block transactions
My guess is that all the chips supported by this driver support block
transactions and reset, but for now we play it safe and only list the
ones for which this was actually tested.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Oleg Ryjkov <olegr@olegr.ca>
2008-01-27 18:14:44 +01:00
Jean Delvare
2f0a8df40f [I2C] i2c-mv64xxx: Don't set i2c_adapter.retries
I2C adapter drivers are supposed to handle retries on nack by themselves
if they do, so there's no point in setting .retries if they don't.

As this retry mechanism is going away (at least in its current form),
clean this up now so that we don't get build failures later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
2008-01-26 15:04:01 +00:00
Tzachi Perelstein
a0832798c0 [I2C] Split mv643xx I2C platform support
The motivation for this change is to allow other chips, like the
Marvell Orion ARM SoC family, to use the existing i2c-mv64xxx driver.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2008-01-26 15:03:59 +00:00
Jean Delvare
5cd6e675f8 i2c-sibyte: Fix an error path
If the registration of the second I2C channel fails, we really want to
unregister the first one before we return with an error.

While we're here, fix the printk right above so that it displays the
real driver name.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
2008-01-14 21:53:31 +01:00
Joe Perches
96acafe05f i2c: Spelling fixes
[JD: One more fix in i2c-dev.]

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-14 21:53:30 +01:00
Tony Lindgren
3e39752d53 i2c-omap: Fix NULL pointer dereferencing
This patch fixes bug #9581 reported by Marcio Buss. If kzalloc fails,
omap_i2c_write_reg() tries to reset an unallocated I2C controller.

Cc: Marcio Buss <marciobuss@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-14 21:53:30 +01:00
Joe Perches
fce3ff0331 i2c: Add missing spaces in split log messages
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-12-12 13:45:24 +01:00
Atsushi Nemoto
50862d9490 i2c-gpio: Initialize adapter class
This is required to let hwmon drivers attach to the adapter.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-12-12 13:45:24 +01:00
Olof Johansson
be8a1f7cd4 i2c-pasemi: Fix NACK detection
Turns out we don't actually check the status to see if there was a
device out there to talk to, just if we had a timeout when doing so.

Add the proper check, so we don't falsly think there are devices
on the bus that are not there, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-11-15 19:24:02 +01:00
Robert P. J. Day
ff23f3eabb i2c-pasemi: Replace obsolete "driverfs" reference with "sysfs"
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-11-15 19:24:02 +01:00
Matt LaPlante
01dd2fbf0d typo fixes
Most of these fixes were already submitted for old kernel versions, and were
approved, but for some reason they never made it into the releases.

Because this is a consolidation of a couple old missed patches, it touches both
Kconfigs and documentation texts.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-20 01:34:40 +02:00
Jan Engelhardt
96de0e252c Convert files to UTF-8 and some cleanups
* Convert files to UTF-8.

  * Also correct some people's names
    (one example is Eißfeldt, which was found in a source file.
    Given that the author used an ß at all in a source file
    indicates that the real name has in fact a 'ß' and not an 'ss',
    which is commonly used as a substitute for 'ß' when limited to
    7bit.)

  * Correct town names (Goettingen -> Göttingen)

  * Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313)

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:21:04 +02:00
Jiri Slaby
ed11399da5 i2c-pxa, rename BIT macro to PXA_BIT
i2c-pxa, rename BIT macro to PXA_BIT

BIT macro will be global definiton of (1 << x)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Nicolas Pitre <nico@cam.org>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:42 -07:00
Joe Perches
898eb71cb1 Add missing newlines to some uses of dev_<level> messages
Found these while looking at printk uses.

Add missing newlines to dev_<level> uses
Add missing KERN_<level> prefixes to multiline dev_<level>s
Fixed a wierd->weird spelling typo
Added a newline to a printk

Signed-off-by: Joe Perches <joe@perches.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Tilman Schmidt <tilman@imap.cc>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Greg KH <greg@kroah.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: James Smart <James.Smart@Emulex.Com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:28 -07:00
Linus Torvalds
65a6ec0d72 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits)
  [ARM] 4578/1: CM-x270: PCMCIA support
  [ARM] 4577/1: ITE 8152 PCI bridge support
  [ARM] 4576/1: CM-X270 machine support
  [ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put()
  [ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c
  [ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c
  [ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols
  [ARM] pxa: PXA3xx base support
  [NET] smc91x: fix PXA DMA support code
  [SERIAL] Fix console initialisation ordering
  [ARM] pxa: tidy up arch/arm/mach-pxa/Makefile
  [ARM] Update arch/arm/Kconfig for drivers/Kconfig changes
  [ARM] 4600/1: fix kernel build failure with build-id-supporting binutils
  [ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23)
  [ARM] Rename consistent_sync() as dma_cache_maint()
  [ARM] 4572/1: ep93xx: add cirrus logic edb9307 support
  [ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support
  [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32
  [ARM] 4594/1: ns9xxx: use the new gpio functions
  [ARM] 4593/1: ns9xxx: implement generic clockevents
  ...
2007-10-15 16:08:50 -07:00
Jean Delvare
ac3f5753ea i2c-nforce2: Declare PEC as supported
The i2c-nforce2 driver has SMBus PEC support, so it should say so.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:33 +02:00
Oleg Ryjkov
d49584c4a3 i2c-nforce2: Abort the transaction on error
This patch is to add an abort function that will bring back the MCP51/55
controller if it was blocked by a block-read operation, in particular.
(When a slave sends a wrong byte count on a byte read, the host gets
locked up). I've only tested it on an MCP51 and MCP55. However, I'm
almost certain it will also work on MCP65, I just did not have the board
to test it on. Thus for now the abort function will only be called
if an MCP51/55 was detected.

Signed-off-by: Oleg Ryjkov <olegr@olegr.ca>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:33 +02:00
Oleg Ryjkov
4153549734 i2c-nforce2: Move status checking to a separate function
This is the first part of the patch that adds a function to reset the
nvidia MCP51/55 i2c controller, if something bad happens to it (e.g.
a slave sends a wrong byte count during a block transaction).

This patch just adds nforce2_check_status function. It was originally
written by Hans-Frieder Vogt.

The reason that I'm the one sending it is:
- I relied on it for the second part of the patch,
- It makes the driver code cleaner/better.

Signed-off-by: Oleg Ryjkov <olegr@olegr.ca>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:33 +02:00
Chris David
a202707e71 i2c-au1550: Fix a misused register problem
Fix a "mis-used register" problem on the AMD MIPS Alchemy au1550
I2C interface.

In summary, the programmable serial controller seems to hang the kernel
when I send a single 'address' byte on the I2C bus.  The patch
essentially uses the PSC_SMBSTAT register's TE (transmit FIFO empty)
bit to check when the transmit FIFO is empty, instead of using the
PSC_SMBEVNT register's TU (transmit underflow) bit.  Using the TE bit
fixed the hang problem.

Signed-off-by: Chris David <cd@chrisdavid.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:33 +02:00
David Brownell
6662cbb989 i2c: Rename the PEC functionality bit
Rename I2C_FUNC_SMBUS_HWPEC_CALC as I2C_FUNC_SMBUS_PEC, and list that
functionality as always available through the software implementation.
Update documentation accordingly (and list similar requirements).

The way it's currently packaged doesn't present the capability in a
useful way.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:33 +02:00
David Brownell
24d0fb423c i2c-at91: Mark as broken
Mark the i2c-at91 driver BROKEN in Kconfig, and explain just
why it's broken.  (Summary:  hardware design issues.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:32 +02:00
David Brownell
3be27d37c2 i2c: Remove NOP i2c_algorithm.algo_control() methods
This removes NOP implementations of i2c_algorithm.algo_control.

With this change, there are no implementations of this hook in
the kernel.org tree ... that hook seems about ripe to remove.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:32 +02:00
Jean Delvare
9d90c1fd9b i2c-stub: Support multiple chips
Add support for multiple chips to i2c-stub. I've changed the memory
allocation scheme from static to dynamic, so that we don't waste too
much memory.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-10-13 23:56:31 +02:00
Francis Moreau
567a244b8b i2c-bfin-twi: Remove useless twi_lock mutex
Remove this unneeded mutex. Indeed it was used to serialize access to
the hardware, but this is already done by the i2c-core layer, see
'bus_lock' mutex used by i2c_transfer().

Signed-off-by: Francis Moreau <francis.moro@gmail.com>
Acked-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:31 +02:00
Jason Gaston
e07bc679fb i2c-i801: Add support for the Intel Tolapai SMBus
Add the Intel Tolapai SMBus Controller DID.

Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:31 +02:00
Vladimir Barinov
95a7f10ead i2c: Add DaVinci I2C controller support
Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com>
Acked-by: Trilok Soni <soni.trilok@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:30 +02:00
Stefan Roese
7589a326d1 i2c-ibm_iic: Add support for new-style clients
Use i2c_bit_add_numbered_adapter() if device id specified, so that the
i2c-ibm_iic adapter works well with new-style pre-declared devices.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13 23:56:30 +02:00
Russell King
c3cef3f3c0 [ARM] pxa: update pxa i2c driver to use clk support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-10-12 21:14:58 +01:00
Jean Delvare
51e5709ad4 i2c-pxa: Fix adapter number
It turns out that platform_device.id is a "u32" so testing it for being
nonnegative is useless when setting up an i2c adapte.  Instead,
do what the platform_bus code does and test it against the value "-1".

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-09-09 22:29:13 +02:00
David Brownell
9a3180e70e i2c-gpio: Fix adapter number
It turns out that platform_device.id is a "u32" so testing it for being
nonnegative is useless when setting up an i2c bitbang device.  Instead,
do what the platform_bus code does and test it against the value "-1". 

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-09-09 22:29:13 +02:00
Shane Huang
60693e5a9a i2c-piix4: Fix SB700 PCI device ID
We find that SB700 and SB800 use the same SMBus device ID as SB600, which is
0x4385, instead of the already submitted 0x4395.

Besides removing the wrong SB700 device ID, add SB800 support to kernel, by
renaming the PCI_DEVICE_ID_ATI_IXP600_SMBUS into
PCI_DEVICE_ID_ATI_SBX00_SMBUS.

Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-31 01:42:23 -07:00
Ben Dooks
b5d0b4ba38 i2c-s3c2410: Build fix
Fixup the include files after the arch moves that
where included in 2.6.23.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-08-14 18:37:15 +02:00
Dale Farnsworth
a07ad1cc03 i2c-mv64xxx: Reinitialize hw and driver on I2C bus hang
Under certain conditions, the mv64xxx I2C bus can hang preventing
further operation.  To make the driver more robust, we now reset
the I2C hardware and the driver state machine when such hangs are
detected.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-08-14 18:37:14 +02:00
Domen Puncer
5af0e07f87 i2c-mpc: Don't disable I2C module on stop condition
Disabling module on stop doesn't work on some CPUs (ie. mpc8241,
as reported by Guennadi Liakhovetski), so remove that.

Disable I2C module on errors/interrupts to prevent it from
locking up on mpc5200b.

Signed-off-by: Domen Puncer <domen.puncer@telargo.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-08-14 18:37:14 +02:00
Arnaud Patard
432ca994bf i2c-iop3xx: Set I2C_CLASS_HWMON to adapter class
In order to be able to use sensors on the IOP3xx SoCs, one needs to set
the adapter class to I2C_CLASS_HWMON.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-08-14 18:37:14 +02:00
Scott Wood
322454a653 i2c-mpc: Pass correct dev_id to free_irq on error path
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-08-14 18:37:14 +02:00
Jean Delvare
002cf63191 i2c-i801: Typo: erroneous
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-08-14 18:37:13 +02:00
Bryan Wu
d8e715428f Blackfin arch: add BF54x I2C/TWI TWI0 driver support
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-25 16:58:03 +08:00
Linus Torvalds
40b42f1ebf Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: (44 commits)
  i2c: Delete the i2c-isa pseudo bus driver
  hwmon: refuse to load abituguru driver on non-Abit boards
  hwmon: fix Abit Uguru3 driver detection on some motherboards
  hwmon/w83627ehf: Be quiet when no chip is found
  hwmon/w83627ehf: No need to initialize fan_min
  hwmon/w83627ehf: Export the thermal sensor types
  hwmon/w83627ehf: Enable VBAT monitoring
  hwmon/w83627ehf: Add support for the VID inputs
  hwmon/w83627ehf: Fix timing issues
  hwmon/w83627ehf: Add error messages for two error cases
  hwmon/w83627ehf: Convert to a platform driver
  hwmon/w83627ehf: Update the Kconfig entry
  make coretemp_device_remove() static
  hwmon: Add LM93 support
  hwmon: Improve the pwmN_enable documentation
  hwmon/smsc47b397: Don't report missing fans as spinning at 82 RPM
  hwmon: Add support for newer uGuru's
  hwmon/f71805f: Add temperature-tracking fan control mode
  hwmon/w83627ehf: Preserve speed reading when changing fan min
  hwmon: fix detection of abituguru volt inputs
  ...

Manual fixup of trivial conflict in MAINTAINERS file
2007-07-19 14:24:57 -07:00
Jean Delvare
e24b8cb4fa i2c: Delete the i2c-isa pseudo bus driver
There are no users of i2c-isa left, so we can finally get rid of it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-19 14:25:20 -04:00
Yoann Padioleau
5ee403f584 parse error, drivers/i2c/busses/i2c-pmcmsp.c
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:22:59 -07:00
Al Viro
2a9915c8a2 make i2c-acorn tristate
It depends on tristate I2C and it's trivial to make modular.  The
current Kconfig allows I2C=m, I2C_ACORN=y, which doesn't work at
all; alternatives are dependency on I2C=y and making I2C_ACORN
itself a tristate.  The latter is the right thing to do...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-15 16:40:52 -07:00
Linus Torvalds
21ba0f88ae Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (34 commits)
  PCI: Only build PCI syscalls on architectures that want them
  PCI: limit pci_get_bus_and_slot to domain 0
  PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure
  PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridge
  PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3
  PCI: hotplug: pciehp: wait for 1 second after power off slot
  PCI: pci_set_power_state(): check for PM capabilities earlier
  PCI: cpci_hotplug: Convert to use the kthread API
  PCI: add pci_try_set_mwi
  PCI: pcie: remove SPIN_LOCK_UNLOCKED
  PCI: ROUND_UP macro cleanup in drivers/pci
  PCI: remove pci_dac_dma_... APIs
  PCI: pci-x-pci-express-read-control-interfaces cleanups
  PCI: Fix typo in include/linux/pci.h
  PCI: pci_ids, remove double or more empty lines
  PCI: pci_ids, add atheros and 3com_2 vendors
  PCI: pci_ids, reorder some entries
  PCI: i386: traps, change VENDOR to DEVICE
  PCI: ATM: lanai, change VENDOR to DEVICE
  PCI: Change all drivers to use pci_device->revision
  ...
2007-07-12 13:40:57 -07:00
Jean Delvare
0a85e9a271 i2c-rpx: Remove
This driver has been broken forever. It depends on i2c-algo-8xx which
has never been in the mainline kernel.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:32 +02:00
Domen Puncer
254db9b5e7 i2c-mpc: work around missing-9th-clock-pulse bug
Work around a problem reported on:
http://ozlabs.org/pipermail/linuxppc-embedded/2005-July/019038.html
Without this patch I2C on mpc5200 becomes unusable after a while.
Tested on mpc5200 boards by Matthias Fechner and me.

Signed-off-by: Domen Puncer <domen.puncer@telargo.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:31 +02:00
Marc St-Jean
1b144df1d7 i2c: New PMC MSP71xx TWI bus driver
Add TWI driver for the PMC-Sierra MSP71xx devices.

[JD: Drop the probe hack, don't set algo_data as we never use it, return
the right error code if the driver registration fails.]

Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:31 +02:00
Jean Delvare
c6e16295b7 i2c-savage4: Delete many unused defines
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:31 +02:00
Jean Delvare
b9cdad7488 i2c: New bus driver for the TAOS evaluation modules
This is a new I2C bus driver for the TAOS evaluation modules. Developped
and tested on the TAOS TSL2550 EVM.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:31 +02:00
Oleg Ryjkov
7edcb9abb5 i2c-i801: Use the internal 32-byte buffer on ICH4+
Add an ability to utilize the internal SRAM buffer on ICH4
and newer host controllers to speed up execution of block operations.

I've split the code so that it is more clear which block transaction is
performed.

First of all the host controller's type is identified. isich4 is set when
we think that the controller has the internal buffer. Then, before every
block transaction, if isich4 is set, we attempt to enable the E32B bit in
SMBAUXCTL register.

Signed-off-by: Oleg Ryjkov <olegr@google.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:31 +02:00
Oleg Ryjkov
ca8b9e32a1 i2c-i801: Various cleanups
* Use defines instead of raw numbers for register bits
* Fix several wrong indentations and trailing whitespace
* Move hwpec timeout checking to a separate function

Signed-off-by: Oleg Ryjkov <olegr@google.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:31 +02:00
Rodolfo Giometti
066af983c7 i2c-pxa: Support new-style I2C drivers
Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:30 +02:00
Atsushi Nemoto
4d6ceed442 i2c-gpio: Make some internal functions static
i2c_gpio_getsda() and i2c_gpio_getscl() are only used in this file.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:30 +02:00
Atsushi Nemoto
7e69c3ac93 i2c-gpio: Add support for new-style clients
Use i2c_bit_add_numbered_bus() so that the i2c-gpio adapter works well
with new-style pre-declared devices.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:30 +02:00
Martin Michlmayr
757ba4c697 i2c-iop3xx: Switch to static adapter numbering
Update the IOP3xx I2C driver to use i2c_add_numbered_adapter(), so that
later patches can convert boards to using new-style drivers.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Tested-by: Voipio Riku <Riku.Voipio@movial.fi>
Cc: Dan J Williams <dan.j.williams@intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:30 +02:00
Jean Delvare
7375cd822d i2c-sis5595: Resolve resource conflict with sis5595
Let the i2c-sis5595 driver release its PCI device after registering.
This is to allow the sis5595 hardware monitoring driver to also
access this PCI device. The same trick is already used in the
i2c-viapro and via686a drivers to let them both load.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:30 +02:00
Oleg Ryjkov
b53c82211a i2c-nforce2: Add support for SMBus block transactions
Add support for SMBus block read/write transactions to i2c-nforce2
driver, in particular to host controllers MCP51 and MCP55.

Signed-off-by: Oleg Ryjkov <olegr@google.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:29 +02:00
Grant Likely
1469fa2638 i2c-mpc: Use i2c_add_numbered_adapter
Move the i2c-mpc driver over to using the new i2c infrastructure.
Specifically, it now uses i2c_add_numbered_adapter so that the bus number
can be determined ahead of time and used to register i2c clients before
the bus is instantiated.

Tested on an MPC5200 based board

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:29 +02:00
Dale Farnsworth
65b22ad950 i2c-mv64xxx: Use i2c_add_numbered_adapter
Convert the Marvell mv64xxx I2C driver to use the new i2c infrastructure,
by calling i2c_add_numbered_adapter().  This allows clients to be
registered before the bus is instantiated.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:29 +02:00
Henry Su
c29c22218b i2c-piix4: Add support for the ATI SB700
Add the SMBus device ID for ATI SB700.

Signed-off-by: Henry Su <Henry.su@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:29 +02:00
Jean Delvare
4b2643d7d9 i2c: Fix the i2c_smbus_read_i2c_block_data() prototype
Let the drivers specify how many bytes they want to read with
i2c_smbus_read_i2c_block_data(). So far, the block count was
hard-coded to I2C_SMBUS_BLOCK_MAX (32), which did not make much sense.
Many driver authors complained about this before, and I believe it's
about time to fix it. Right now, authors have to do technically stupid
things, such as individual byte reads or full-fledged I2C messaging,
to work around the problem. We do not want to encourage that.

I even found that some bus drivers (e.g. i2c-amd8111) already
implemented I2C block read the "right" way, that is, they didn't
follow the old, broken standard. The fact that it was never noticed
before just shows how little i2c_smbus_read_i2c_block_data() was used,
which isn't that surprising given how broken its prototype was so far.

There are some obvious compatiblity considerations:
* This changes the i2c_smbus_read_i2c_block_data() prototype. Users
  outside the kernel tree will notice at compilation time, and will
  have to update their code.
* User-space has access to i2c_smbus_xfer() directly using i2c-dev, so
  the changed expectations would affect tools such as i2cdump. In order
  to preserve binary compatibility, we give I2C_SMBUS_I2C_BLOCK_DATA
  a new numeric value, and define I2C_SMBUS_I2C_BLOCK_BROKEN with the
  old numeric value. When i2c-dev receives a transaction with the
  old value, it can convert it to the new format on the fly.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:29 +02:00
Matthias Kaehlcke
9d9c01ceff scx200_acb: Use mutex instead of semaphore
The scx200_acb driver use a semaphore as mutex.  Use the mutex API
instead of the (binary) semaphore.

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:28 +02:00
Auke Kok
44c10138fd PCI: Change all drivers to use pci_device->revision
Instead of all drivers reading pci config space to get the revision
ID, they can now use the pci_device->revision member.

This exposes some issues where drivers where reading a word or a dword
for the revision number, and adding useless error-handling around the
read. Some drivers even just read it for no purpose of all.

In devices where the revision ID is being copied over and used in what
appears to be the equivalent of hotpath, I have left the copy code
and the cached copy as not to influence the driver's performance.

Compile tested with make all{yes,mod}config on x86_64 and i386.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:10 -07:00
Enrico Scholz
6776f3d26a [ARM] 4403/1: Make the PXA-I2C driver work with lockdep validator
Using lockdep validator causes warnings like

  INFO: trying to register non-static key.
  the code is fine but needs lockdep annotation.
  turning off the locking correctness validator.
  [<c00241a0>] (dump_stack+0x0/0x14) from [<c00520f8>] (__lock_acquire+0x150/0xc40)
  [<c0051fa8>] (__lock_acquire+0x0/0xc40) from [<c00530a0>] (lock_acquire+0x5c/0x70)
  [<c0053044>] (lock_acquire+0x0/0x70) from [<c01d9e44>] (_spin_lock_irq+0x48/0x58)
   r7:c07e5144 r6:00000000 r5:c015fb94 r4:c07e50b8
  [<c01d9dfc>] (_spin_lock_irq+0x0/0x58) from [<c015fb94>] (i2c_pxa_xfer+0x110/0x2e0)
   r5:c07e50b8 r4:0000001f

This is caused by memcpy'ing a statical initialized spin-lock. This patch
removes a static pxa_i2c structure which was used only as a source for this
memcpy() operation. Instead of, members and the spinlock will be
initialized manually.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-26 10:09:39 +01:00
Arnaud Patard
a1ba15832c i2c-s3c2410: Fix build warning
Fix for the following build warning:
  CC      drivers/i2c/busses/i2c-s3c2410.o
  drivers/i2c/busses/i2c-s3c2410.c: In function 's3c24xx_i2c_probe':
  drivers/i2c/busses/i2c-s3c2410.c:839: warning: format '%ld' expects type 'long int', but argument 4 has type 'resource_size_t'

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-22 19:49:16 +02:00
Jean Delvare
6a7ce82f02 i2c-tiny-usb: Fix truncated adapter name
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Till Harbaum <lists@harbaum.org>
2007-05-22 19:49:16 +02:00
Alexey Dobriyan
c91e23c63f i2c-at91: compile fix (IS_ERR)
CC      drivers/i2c/busses/i2c-at91.o
drivers/i2c/busses/i2c-at91.c: In function 'at91_i2c_probe':
drivers/i2c/busses/i2c-at91.c:213: warning: implicit declaration of function 'IS_ERR'

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-10 09:26:53 -07:00
David Brownell
6e99806ebb i2c-at91 supports new-style i2c drivers
Make i2c-at91 register as i2c adapter zero (none of these chips seem to
have more than one TWI controllers) to let it kick in any board-specific
device declarations; also make it hotplug/coldplug.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-10 09:26:53 -07:00
Russell King
0cfe61e1a7 arm: fix i2c-pxa build
From commit 7d054817b7:
> According to the PXA27x developer's manual, we shall do so.

We shall also at least compile test our changes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-10 09:26:52 -07:00
Randy Dunlap
e63340ae6b header cleaning: don't include smp_lock.h when not used
Remove includes of <linux/smp_lock.h> where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:07 -07:00
David Brownell
da67529642 layered parport code uses parport->dev
Update some of the layered parport_driver code to use parport->dev:

	- i2c-parport (parent of i2c_adapter)
	- spi_butterfly (parent of spi_master, allowing cruft removal)
	- lp (creating class_device)
	- ppdev (parent of parportN device)
	- tipar (creating class_device)

There are still drivers that should be updated, like some of the input
drivers; but they won't be any worse off than they are today.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Greg KH <greg@kroah.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:05 -07:00
Linus Torvalds
c6799ade4a Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (82 commits)
  [ARM] Add comments marking in-use ptrace numbers
  [ARM] Move syscall saving out of the way of utrace
  [ARM] 4360/1: S3C24XX: regs-udc.h remove unused macro
  [ARM] 4358/1: S3C24XX: mach-qt2410.c: remove linux/mmc/protocol.h header
  [ARM] mm 10: allow memory type to be specified with ioremap
  [ARM] mm 9: add additional device memory types
  [ARM] mm 8: define mem_types table L1 bit 4 to be for ARMv6
  [ARM] iop: add missing parens in macro
  [ARM] mm 7: remove duplicated __ioremap() prototypes
  ARM: OMAP: fix OMAP1 mpuio suspend/resume oops
  ARM: OMAP: MPUIO wake updates
  ARM: OMAP: speed up gpio irq handling
  ARM: OMAP: plat-omap changes for 2430 SDP
  ARM: OMAP: gpio object shrinkage, cleanup
  ARM: OMAP: /sys/kernel/debug/omap_gpio
  ARM: OMAP: Implement workaround for GPIO wakeup bug in OMAP2420 silicon
  ARM: OMAP: Enable 24xx GPIO autoidling
  [ARM] 4318/2: DSM-G600 Board Support
  [ARM] 4227/1: minor head.S fixups
  [ARM] 4328/1: Move i.MX UART regs to driver
  ...
2007-05-06 13:20:10 -07:00
Linus Torvalds
89661adaae Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (59 commits)
  PCI: Free resource files in error path of pci_create_sysfs_dev_files()
  pci-quirks: disable MSI on RS400-200 and RS480
  PCI hotplug: Use menuconfig objects
  PCI: ZT5550 CPCI Hotplug driver fix
  PCI: rpaphp: Remove semaphores
  PCI: rpaphp: Ensure more pcibios_add/pcibios_remove symmetry
  PCI: rpaphp: Use pcibios_remove_pci_devices() symmetrically
  PCI: rpaphp: Document is_php_dn()
  PCI: rpaphp: Document find_php_slot()
  PCI: rpaphp: Rename rpaphp_register_pci_slot() to rpaphp_enable_slot()
  PCI: rpaphp: refactor tail call to rpaphp_register_slot()
  PCI: rpaphp: remove rpaphp_set_attention_status()
  PCI: rpaphp: remove print_slot_pci_funcs()
  PCI: rpaphp: Remove setup_pci_slot()
  PCI: rpaphp: remove a call that does nothing but a pointer lookup
  PCI: rpaphp: Remove another wrappered function
  PCI: rpaphp: Remve another call that is a wrapper
  PCI: rpaphp: remove a function that does nothing but wrap debug printks
  PCI: rpaphp: Remove un-needed goto
  PCI: rpaphp: Fix a memleak; slot->location string was never freed
  ...
2007-05-04 18:04:29 -07:00
Jean Delvare
6473d160b4 PCI: Cleanup the includes of <linux/pci.h>
I noticed that many source files include <linux/pci.h> while they do
not appear to need it. Here is an attempt to clean it all up.

In order to find all possibly affected files, I searched for all
files including <linux/pci.h> but without any other occurence of "pci"
or "PCI". I removed the include statement from all of these, then I
compiled an allmodconfig kernel on both i386 and x86_64 and fixed the
false positives manually.

My tests covered 66% of the affected files, so there could be false
positives remaining. Untested files are:

arch/alpha/kernel/err_common.c
arch/alpha/kernel/err_ev6.c
arch/alpha/kernel/err_ev7.c
arch/ia64/sn/kernel/huberror.c
arch/ia64/sn/kernel/xpnet.c
arch/m68knommu/kernel/dma.c
arch/mips/lib/iomap.c
arch/powerpc/platforms/pseries/ras.c
arch/ppc/8260_io/enet.c
arch/ppc/8260_io/fcc_enet.c
arch/ppc/8xx_io/enet.c
arch/ppc/syslib/ppc4xx_sgdma.c
arch/sh64/mach-cayman/iomap.c
arch/xtensa/kernel/xtensa_ksyms.c
arch/xtensa/platform-iss/setup.c
drivers/i2c/busses/i2c-at91.c
drivers/i2c/busses/i2c-mpc.c
drivers/media/video/saa711x.c
drivers/misc/hdpuftrs/hdpu_cpustate.c
drivers/misc/hdpuftrs/hdpu_nexus.c
drivers/net/au1000_eth.c
drivers/net/fec_8xx/fec_main.c
drivers/net/fec_8xx/fec_mii.c
drivers/net/fs_enet/fs_enet-main.c
drivers/net/fs_enet/mac-fcc.c
drivers/net/fs_enet/mac-fec.c
drivers/net/fs_enet/mac-scc.c
drivers/net/fs_enet/mii-bitbang.c
drivers/net/fs_enet/mii-fec.c
drivers/net/ibm_emac/ibm_emac_core.c
drivers/net/lasi_82596.c
drivers/parisc/hppb.c
drivers/sbus/sbus.c
drivers/video/g364fb.c
drivers/video/platinumfb.c
drivers/video/stifb.c
drivers/video/valkyriefb.c
include/asm-arm/arch-ixp4xx/dma.h
sound/oss/au1550_ac97.c

I would welcome test reports for these files. I am fine with removing
the untested files from the patch if the general opinion is that these
changes aren't safe. The tested part would still be nice to have.

Note that this patch depends on another header fixup patch I submitted
to LKML yesterday:
  [PATCH] scatterlist.h needs types.h
  http://lkml.org/lkml/2007/3/01/141

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-02 19:02:35 -07:00
Ben Dooks
5b68790cd5 i2c-s3c2410: Fix bug in releasing driver
When compiled as a module, the i2c-s3c2410 driver does not
free either the IRQ or the i2c adapter it attached to the system.

As part of this fix, move to the usual kernel style
of freeing items as part of the probe error path
making the remove process easier.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:35 +02:00
Ben Dooks
e00a8cdf32 i2c-s3c2410: Fix I2C SDA to SCL setup time
Fix the setup time for SDA to SCL due to the way
the S3C24XX I2C controller works.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:35 +02:00
Till Harbaum
e8c76eed2e i2c: New i2c-tiny-usb bus driver
Add a driver for the i2c-tiny-usb interface. This is a simple
do-it-yourself USB to I2C interface targeted at experimental and
home use. See the i2c-tiny-usb homepage for hardware details:
http://www.harbaum.org/till/i2c_tiny_usb

Signed-off-by: Till Harbaum <till@harbaum.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:35 +02:00
Milind Arun Choudhary
35532d2003 i2c: SPIN_LOCK_UNLOCKED cleanup
SPIN_LOCK_UNLOCKED cleanup, use __SPIN_LOCK_UNLOCKED instead.

Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:34 +02:00
Jean Delvare
11de70bd4d i2c: Obsolete i2c-ixp2000, i2c-ixp4xx and scx200_i2c
The new generic i2c-gpio driver should be used instead.
The obsolete drivers will be removed in September 2007.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Deepak Saxena <dsaxena@plexity.net>
Cc: Jordan Crouse <jordan.crouse@amd.com>
2007-05-01 23:26:34 +02:00
Ben Dooks
bcda9f1eb0 i2c: New Simtec I2C bus driver
Platform driver for the Simtec CPLD based simple I2C logic.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:34 +02:00
Haavard Skinnemoen
1c23af90dc i2c: Bitbanging I2C bus driver using the GPIO API
This is a very simple bitbanging I2C bus driver utilizing the new
arch-neutral GPIO API. Useful for chips that don't have a built-in
I2C controller, additional I2C busses, or testing purposes.

To use, include something similar to the following in the
board-specific setup code:

  #include <linux/i2c-gpio.h>

  static struct i2c_gpio_platform_data i2c_gpio_data = {
	.sda_pin	= GPIO_PIN_FOO,
	.scl_pin	= GPIO_PIN_BAR,
  };
  static struct platform_device i2c_gpio_device = {
	.name		= "i2c-gpio",
	.id		= 0,
	.dev		= {
		.platform_data	= &i2c_gpio_data,
	},
  };

Register this platform_device, set up the I2C pins as GPIO if
required and you're ready to go. This will use default values for
udelay and timeout, and will work with GPIO hardware that does not
support open drain mode, but allows sensing of the SDA and SCL lines
even when they are being driven.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:34 +02:00
Jan Engelhardt
16538e6b32 Use menuconfig objects - I2C
Allow the whole I2C menu to be disabled at once without diving into
the submenus for deselecting all options (should the user desire so).

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:34 +02:00
Jean Delvare
7d054817b7 i2c-pxa: Clean transaction stop
It was reported to me that the i2c-pxa driver was not able to process
more that 50 transactions per second. Investigation revealed that the
I2C unit was busy for 20 ms after every transaction. The reason seems
to be that we forget to clear the STOP and ACKNACK bits at the end of
the transaction. According to the PXA27x developer's manual, we shall
do so.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Nicolas Pitre <nico@cam.org>
2007-05-01 23:26:33 +02:00
David Brownell
7c17549982 i2c-omap: Switch to static adapter numbering
Update the OMAP I2C driver to use i2c_add_numbered_adapter(), so that
later patches can convert boards to using new-style drivers.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:32 +02:00
Bryan Wu
d24ecfcc39 i2c: Blackfin Two Wire Interface driver
The i2c linux driver for blackfin architecture which supports blackfin
on-chip TWI controller i2c operation.

Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Reviewed-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:32 +02:00
Jean Delvare
a97f1ed090 i2c: Move i2c-isa-only exported symbol declarations
Move the declaration of i2c-isa-only exported symbols to i2c-isa
itself, that's the best way to ensure nobody will attempt to use them.
Hopefully we'll get rid of the exports themselves soon anyway.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:32 +02:00
Jean Delvare
5cedb05db3 i2c-pca-isa: Port to the new device driver model
Port the i2c-pca-isa driver to the new device driver model. I'm
using Rene Herman's new isa bus type, as it fits the needs nicely. One
benefit is that we can now give a proper parent to our i2c adapter.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:30 +02:00
Jean Delvare
4a5d30302e i2c-elektor: Port to the new device driver model
Port the i2c-elektor driver to the new device driver model. I'm
using Rene Herman's new isa bus type, as it fits the needs nicely. One
benefit is that we can now give a proper parent to our i2c adapter.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:30 +02:00
Jean Delvare
c6e8bb2ca5 i2c-parport-light: Port to the new device driver model
Also fix a small race on driver unload: we need to unregister the
i2c adapter before we power it off.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:30 +02:00
Jean Delvare
3af07bd297 i2c-parport: Fix a minor race on driver unload
When unloading the driver, we really want to unregister the i2c adapter
before we power it off, rather than the other way around.

Also speed up the bus a bit when we can sense SCL. The slaves will
stretch the line as needed.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01 23:26:30 +02:00