summaryrefslogtreecommitdiffstats
path: root/drivers/i2c/busses (follow)
Commit message (Collapse)AuthorAgeFilesLines
* i2c-pxa, rename BIT macro to PXA_BITJiri Slaby2007-10-191-27/+27
| | | | | | | | | | | | 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>
* Add missing newlines to some uses of dev_<level> messagesJoe Perches2007-10-182-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-10-161-20/+25
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * '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 ...
| * [ARM] pxa: update pxa i2c driver to use clk supportRussell King2007-10-121-20/+25
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | i2c-nforce2: Declare PEC as supportedJean Delvare2007-10-131-0/+1
| | | | | | | | | | | | The i2c-nforce2 driver has SMBus PEC support, so it should say so. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | i2c-nforce2: Abort the transaction on errorOleg Ryjkov2007-10-131-1/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | i2c-nforce2: Move status checking to a separate functionOleg Ryjkov2007-10-131-16/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | i2c-au1550: Fix a misused register problemChris David2007-10-131-7/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | i2c: Rename the PEC functionality bitDavid Brownell2007-10-132-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | i2c-at91: Mark as brokenDavid Brownell2007-10-131-1/+9
| | | | | | | | | | | | | | | | 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>
* | i2c: Remove NOP i2c_algorithm.algo_control() methodsDavid Brownell2007-10-131-8/+0
| | | | | | | | | | | | | | | | | | | | 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>
* | i2c-stub: Support multiple chipsJean Delvare2007-10-131-22/+57
| | | | | | | | | | | | | | | | | | 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>
* | i2c-bfin-twi: Remove useless twi_lock mutexFrancis Moreau2007-10-131-16/+0
| | | | | | | | | | | | | | | | | | | | 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>
* | i2c-i801: Add support for the Intel Tolapai SMBusJason Gaston2007-10-131-0/+3
| | | | | | | | | | | | | | 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>
* | i2c: Add DaVinci I2C controller supportVladimir Barinov2007-10-133-0/+600
| | | | | | | | | | | | 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>
* | i2c-ibm_iic: Add support for new-style clientsStefan Roese2007-10-131-1/+8
|/ | | | | | | | 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>
* i2c-pxa: Fix adapter numberJean Delvare2007-09-091-1/+1
| | | | | | | | 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>
* i2c-gpio: Fix adapter numberDavid Brownell2007-09-091-1/+1
| | | | | | | | | | 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>
* i2c-piix4: Fix SB700 PCI device IDShane Huang2007-08-312-4/+3
| | | | | | | | | | | | | | 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>
* i2c-s3c2410: Build fixBen Dooks2007-08-141-2/+2
| | | | | | | | 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>
* i2c-mv64xxx: Reinitialize hw and driver on I2C bus hangDale Farnsworth2007-08-141-14/+17
| | | | | | | | | | | 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>
* i2c-mpc: Don't disable I2C module on stop conditionDomen Puncer2007-08-141-3/+6
| | | | | | | | | | | | 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>
* i2c-iop3xx: Set I2C_CLASS_HWMON to adapter classArnaud Patard2007-08-141-0/+1
| | | | | | | | 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>
* i2c-mpc: Pass correct dev_id to free_irq on error pathScott Wood2007-08-141-1/+1
| | | | | Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* i2c-i801: Typo: erroneousJean Delvare2007-08-141-2/+2
| | | | Signed-off-by: Jean Delvare <khali@linux-fr.org>
* Blackfin arch: add BF54x I2C/TWI TWI0 driver supportBryan Wu2007-07-251-2/+2
| | | | | Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6Linus Torvalds2007-07-193-196/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * '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
| * i2c: Delete the i2c-isa pseudo bus driverJean Delvare2007-07-193-196/+0
| | | | | | | | | | | | 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>
* | parse error, drivers/i2c/busses/i2c-pmcmsp.cYoann Padioleau2007-07-171-1/+1
| | | | | | | | | | | | | | 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>
* | make i2c-acorn tristateAl Viro2007-07-162-2/+2
| | | | | | | | | | | | | | | | | | | | | | 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>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds2007-07-121-2/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 ...
| * | PCI: Change all drivers to use pci_device->revisionAuke Kok2007-07-121-2/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | i2c-rpx: RemoveJean Delvare2007-07-123-107/+0
| | | | | | | | | | | | | | 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>
* | i2c-mpc: work around missing-9th-clock-pulse bugDomen Puncer2007-07-121-0/+23
| | | | | | | | | | | | | | | | | | | | 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>
* | i2c: New PMC MSP71xx TWI bus driverMarc St-Jean2007-07-123-0/+663
| | | | | | | | | | | | | | | | | | | | 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>
* | i2c-savage4: Delete many unused definesJean Delvare2007-07-121-20/+1
| | | | | | | | Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | i2c: New bus driver for the TAOS evaluation modulesJean Delvare2007-07-123-0/+347
| | | | | | | | | | | | | | 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>
* | i2c-i801: Use the internal 32-byte buffer on ICH4+Oleg Ryjkov2007-07-121-51/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | i2c-i801: Various cleanupsOleg Ryjkov2007-07-121-41/+75
| | | | | | | | | | | | | | | | | | * 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>
* | i2c-pxa: Support new-style I2C driversRodolfo Giometti2007-07-121-1/+8
| | | | | | | | | | Signed-off-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | i2c-gpio: Make some internal functions staticAtsushi Nemoto2007-07-121-2/+2
| | | | | | | | | | | | | | | | 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>
* | i2c-gpio: Add support for new-style clientsAtsushi Nemoto2007-07-121-1/+7
| | | | | | | | | | | | | | | | 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>
* | i2c-iop3xx: Switch to static adapter numberingMartin Michlmayr2007-07-121-1/+2
| | | | | | | | | | | | | | | | | | | | 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>
* | i2c-sis5595: Resolve resource conflict with sis5595Jean Delvare2007-07-121-7/+20
| | | | | | | | | | | | | | | | | | 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>
* | i2c-nforce2: Add support for SMBus block transactionsOleg Ryjkov2007-07-121-1/+43
| | | | | | | | | | | | | | | | 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>
* | i2c-mpc: Use i2c_add_numbered_adapterGrant Likely2007-07-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | i2c-mv64xxx: Use i2c_add_numbered_adapterDale Farnsworth2007-07-121-1/+2
| | | | | | | | | | | | | | | | | | | | 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>
* | i2c-piix4: Add support for the ATI SB700Henry Su2007-07-122-1/+4
| | | | | | | | | | | | | | 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>
* | i2c: Fix the i2c_smbus_read_i2c_block_data() prototypeJean Delvare2007-07-123-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | scx200_acb: Use mutex instead of semaphoreMatthias Kaehlcke2007-07-121-7/+7
|/ | | | | | | | | | 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>