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2008-04-22i2c-bfin-twi: Add missing pin mux operationBryan Wu
Blackfin TWI controller hardware pin should be requested from GPIO port controller Before BF54x, there is no need to do this. But as long as BF54x and BF52x are supported by this generic driver, the missing pin mux operation should be added. Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Add platform_resource interface to support multi-port TWI ↵Bryan Wu
controllers - Dynamic alloc the resource of TWI driver data according to board information - TWI register read/write accessor based on dynamic regs_base - Support TWI0/TWI1 for BF54x Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Add repeat start feature to avoid break of a bundle of i2c ↵Sonic Zhang
master xfer operation - Create a new mode TWI_I2C_MODE_REPEAT. - No change to smbus operation. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Remove trailing whitespaces in busses/KconfigWolfram Sang
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Renesas SH7760 I2C master driverManuel Lauss
Driver for I2C interfaces in master mode on SH7760. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-dev: Split i2cdev_ioctlJean Delvare
Split the handling of the I2C_RDWR and I2C_SMBUS ioctls to their own functions. This limits the stack usage, saves one level of indentation and makes the code more readable. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-ibm_iic: Support building as an of_platform driverSean MacLennan
This patch allows the i2c-ibm_iic driver to be built either as an ocp driver or an of_platform driver. This allows it to run under the powerpc arch but maintains backward compatibility with the ppc arch. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-ibm_iic: Change the log levelsSean MacLennan
Change the log levels based on feedback from linxppc-dev. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Add platform driver on top of the new pca-algorithmWolfram Sang
Tested on a blackfin. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-algo-pca: Extend for future driversWolfram Sang
The separation between algorithm and adapter was unsharp at places. This was partly hidden by the fact, that the ISA-driver allowed just one instance and had all private data in static variables. This patch makes neccessary preparations to add a platform driver on top of the algorithm, while still supporting ISA. Note: Due to lack of hardware, the ISA-driver could not be tested except that it builds. Concerning the core struct i2c_algo_pca_data: - A private data field was added, all hardware dependant data may go here. Similar to other algorithms, now a pointer to this data is passed to the adapter's functions. In order to make as less changes as possible to the ISA-driver, it leaves the private data empty and still only uses its static variables. - A "reset_chip" function pointer was added; such a functionality must come from the adapter, not the algorithm. - use a variable "i2c_clock" instead of a function pointer "get_clock", allowing for write access to a default in case a wrong value was supplied. In the algorithm-file: - move "i2c-pca-algo.h" into "linux/i2c-algo-pca.h" - now using per_instance timeout values (i2c_adap->timeout) - error messages specify the device, not only the driver name - restructure initialization to easily support "i2c_add_numbered_adapter" - drop "retries" and "own" (i2c address) as they were unused (The state-machine for I2C-communication was not touched.) In the ISA-driver: - adapt to new algorithm Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-algo-pca: Remove trailing whitespaces and unnecessary UTFWolfram Sang
Remove trailing whitespaces to make further patches more readable. Also remove an unnecessary UTF-char for simplicity ("us" for microseconds is fine enough). Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Remove the algorithm drivers from the config menuJean Delvare
The algorithm drivers are helper drivers that are selected automatically as needed. There's no point in listing them in the config menu, it can only confuse users and waste their time. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-21Merge branch 'semaphore' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc * 'semaphore' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc: Deprecate the asm/semaphore.h files in feature-removal-schedule. Convert asm/semaphore.h users to linux/semaphore.h security: Remove unnecessary inclusions of asm/semaphore.h lib: Remove unnecessary inclusions of asm/semaphore.h kernel: Remove unnecessary inclusions of asm/semaphore.h include: Remove unnecessary inclusions of asm/semaphore.h fs: Remove unnecessary inclusions of asm/semaphore.h drivers: Remove unnecessary inclusions of asm/semaphore.h net: Remove unnecessary inclusions of asm/semaphore.h arch: Remove unnecessary inclusions of asm/semaphore.h
2008-04-19Merge branch 'omap2-upstream' into develRussell King
2008-04-19Merge branches 'arm', 'at91', 'ep93xx', 'iop', 'ks8695', 'misc', 'mxc', ↵Russell King
'ns9x', 'orion', 'pxa', 'sa1100', 's3c' and 'sparsemem' into devel
2008-04-19[ARM] pxa: separate GPIOs and their mode definitions to pxa2xx-gpio.heric miao
two reasons: 1. GPIO namings and their mode definitions are conceptually not part of the PXA register definitions 2. this is actually a temporary move in the transition of PXA2xx to use MFP-alike APIs (as what PXA3xx is now doing), so that legacy code will still work and new code can be added in step by step Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-18Convert asm/semaphore.h users to linux/semaphore.hMatthew Wilcox
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2008-04-14ARM: OMAP: I2C: tps65010 driver converts to gpiolibDavid Brownell
Make the tps65010 driver use gpiolib to expose its GPIOs. Note: This patch will get merged via omap tree instead of I2C as it will cause some board updates. This has been discussed at on the I2C list: http://lists.lm-sensors.org/pipermail/i2c/2008-March/003031.html Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: i2c@lm-sensors.org Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-04-11i2c-tiny-usb: New VID/PID pairTill Harbaum
I have recently bought some USB PIDs from EZPrototypes for my USB projects and one will be for the i2c-tiny-usb. I have not yet started to use the new one in the official i2c-tiny-usb firmware since i think it makes sense to get the change into the kernel before releasing a modified firmware. This patch adds support for the EZPrototypes USB vid/pid pair used in later i2c-tiny-usb firmware versions (avrusb v1.06 and up, usbtiny v2.06 and up). Signed-off-by: Till Harbaum <Till@Harbaum.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-11i2c-davinci: Fix lost interruptTroy Kisky
DAVINCI_I2C_STR_REG is a write 1 to clear register, so don't use a read/modify/write cycle. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Acked-by: Dirk Behme <dirk.behme@gmail.com> Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-11i2c-ibm_iic: Fast mode parm desc fixupPaul Mundt
Noticed this when grepping for fast mode module params, the i2c-ibm_iic driver was using a non-existent variable for MODULE_PARM_DESC. Fix it up to reflect what it's actually supposed to be describing. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-03-27plat-orion: make i2c-mv64xxx available for all Orion familiesLennert Buytenhek
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Reviewed-by: Tzachi Perelstein <tzachi@marvell.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-03-23i2c: Fix docbook problemRandy Dunlap
Sometimes kernel-doc and xmlto conspire to create output that is invalid and causes problems. Until I know a real/better solution, change the source code that causes this. If anyone has better fixes or can just explain what is happening here, that would be great. xmlto: input does not validate (status 1) mmotm-2008-0314-1449/Documentation/DocBook/kernel-api.xml:71468: parser error : Opening and ending tag mismatch: programlisting line 71464 and para </para><para> ^ mmotm-2008-0314-1449/Documentation/DocBook/kernel-api.xml:71480: parser error : Opening and ending tag mismatch: para line 71473 and programlisting </programlisting></informalexample> ^ make[1]: *** [Documentation/DocBook/kernel-api.html] Error 1 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-03-23i2c-omap: Fix unhandled faultTony Lindgren
If an I2C interrupt happens between disabling interface clock and functional clock, the interrupt handler will produce an external abort on non-linefetch error when trying to access driver registers while interface clock is disabled. This patch fixes the problem by saving and disabling i2c-omap interrupt before turning off the clocks. Also disable functional clock before the interface clock as suggested by Paul Walmsley. Patch also renames enable/disable_clocks functions to unidle/idle functions. Note that the driver is currently not taking advantage of the idle interrupts. To use the idle interrupts, driver would have to enable interface clock based on the idle interrupt and dev->idle flag. This patch has been tested in linux-omap tree with various omaps. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-03-23i2c-bfin-twi: Disable BF54x support for nowBryan Wu
The i2c-bfin-twi driver doesn't support BF54x for now due to missing header definitions causing the build to fail. Exclude it for now, it will be enabled again later. Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-03-12i2c: chips subdirectory is deprecatedJean Delvare
Let driver authors know that drivers/i2c/chips is usually the wrong place for new drivers. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-03-12i2c: Keep client->driver and client->dev.driver in syncHans Verkuil
Ensure that client->driver is set to NULL if the probe() returns an error (this keeps client->driver and client->dev.driver in sync). Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-03-12i2c-amd756: Fix off-by-oneAdrian Bunk
This patch fixes an off-by-one error spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-02-24i2c-i801: Add support for the ICH10Gaston, Jason D
Add the Intel ICH10 SMBus Controller DeviceID's and updates Tolapai support. Signed-off-by: Jason Gaston <jason.d.gaston@intel.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-02-24i2c-pca-isa: Add access check to legacy ioportsChristian Krafft
When probing i2c-pca-isa writes to legacy ioports, which crashes the kernel if there is no device at that port. This patch adds a check_legacy_ioport call, so probe fails gracefully and thus prevents the oops. Signed-off-by: Christian Krafft <krafft@de.ibm.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-02-24i2c: Storage class should be before const qualifierTobias Klauser
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-02-24i2c-pxa: Misc fixesWolfram Sang
While working on the PCA9564-platform driver, I sometimes had a glimpse at the pxa-driver. I found some suspicious places, and this patch contains my suggestions. Note: They are not tested, due to no hardware. [JD: Some more fixes.] Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Mike Rapoport <mike@compulab.co.il> Tested-by: Eric Miao <ymiao3@marvell.com>
2008-02-17[ARM] 4827/1: fix two warnings in drivers/i2c/busses/i2c-pxa.cHolger Schurig
This fixes two warnings: * unused static defined function decode_ICR() when compiled without CONFIG_I2C_PXA_SLAVE * a sparse warning about a void function returning something Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-07hwmon: Discard useless I2C driver IDsJean Delvare
Many I2C hwmon drivers define a driver ID but no other code references these, meaning that they are useless. Discard them, along with a few IDs which are defined but never used at all. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-05deprecate obsolete pca9539 drivereric miao
Use drivers/gpio/pca9539.c instead. Signed-off-by: eric miao <eric.miao@marvell.com> Acked-by: Ben Gardner <bgardner@wabtec.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Philipp Zabel <philipp.zabel@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01PCI: Remove users of pci_enable_device_bars()Benjamin Herrenschmidt
This patch converts users of pci_enable_device_bars() to the new pci_enable_device_{io,mem} interface. The new API fits nicely, except maybe for the QLA case where a bit of code re-organization might be a good idea but I prefer sticking to the simple patch as I don't have hardware to test on. I'll also need some feedback on the cs5520 change. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-28Merge branch 'orion' into develRussell King
* orion: (26 commits) [ARM] Orion: implement power-off method for QNAP TS-109/209 [ARM] Orion: add support for QNAP TS-109/TS-209 [ARM] Orion: I2C support [I2C] i2c-mv64xxx: Don't set i2c_adapter.retries [I2C] Split mv643xx I2C platform support [ARM] Orion: enable CONFIG_RTC_DRV_M41T80 for D-Link DNS-323 [ARM] Orion defconfig [ARM] Orion: add support for Orion/MV88F5181 based D-Link DNS-323 [ARM] Orion: MV88F5181 support bits [ARM] Orion: Buffalo/Revogear Kurobox Pro support [ARM] OrionNAS RD board support [ARM] Orion: support for Marvell Orion-2 (88F5281) Development Board [ARM] Orion: common platform setup for Gigabit Ethernet port [ARM] Orion: platform device registration for UART, USB and NAND [ARM] Orion: system timer support [ARM] Orion edge GPIO IRQ support [ARM] Orion: IRQ support [ARM] Orion: provide GPIO method for enabling hardware assisted blinking [ARM] Orion: GPIO support [ARM] Orion: programable address map support ... Conflicts: arch/arm/Kconfig arch/arm/Makefile Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-01-27i2c-bfin-twi: Register adapter with a specific bus numberKalle Pokki
All the users of this driver explicitly specify the I2C bus numbers to be used in their platform data. Make the driver respect that. Signed-off-by: Kalle Pokki <kalle.pokki@eke.fi> Cc: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-au1550: Convert to platform driverManuel Lauss
Convert the i2c-au1550 bus driver to platform driver, and register a platform device for the Alchemy Db/Pb series of boards. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-au1550: properly terminate zero-byte transfersManuel Lauss
Zero-bytes transfers would leave the bus transaction unfinished (no i2c stop is sent), with the following transfer actually sending the slave address to the previously addressed device, resulting in weird device failures (e.g. reset minute register values in my RTC). This patch instructs the controller to send an I2C STOP right after the slave address in case of a zero-byte transfer. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27mpc-i2c: Propagate error values properlyJon Smirl
Propagate the error values returned by i2c_wait() instead of overriding them with a meaningless -1. Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Add i2c_new_dummy() utilityDavid Brownell
This adds a i2c_new_dummy() primitive to help work with devices that consume multiple addresses, which include many I2C eeproms and at least one RTC. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Drop legacy locking in i2c_new_probed_deviceJean Delvare
It is no longer required to hold adapter->clist_lock to call i2c_check_addr. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net>
2008-01-27i2c: Limit locking scope in i2c_detach_clientJean Delvare
We only need to hold adapter->clist_lock when we touch the client list. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-remove-redundant-i2c_client-list.patchDavid Brownell
This goes on top of the patch removing most i2c_adapter.clients usage, updating i2c_attach_client: - Don't call device_register() while holding clist_lock. This removes a self-deadlock when on the i2c_driver.probe() path, for drivers that need to attach new devices (e.g. dummies). - Remove a redundant address check. The driver model core does this as a consequence of guaranteeing unique names. - Move the "device registered" diagnostic so that it never lies; previously, on error paths it would falsely report success. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Stop using the redundant client listDavid Brownell
The i2c_adapter.clients list of i2c_client nodes duplicates driver model state. This patch starts removing that list, letting us remove most existing users of those i2c-core lists. * The core I2C code now iterates over the driver model's list instead of the i2c-internal one in some places where it's safe: - Passing a command/ioctl to each client, a mechanims used almost exclusively by DVB adapters; - Device address checking, in both i2c-core and i2c-dev. * Provide i2c_verify_client() to use with driver model iterators. * Flag the relevant i2c_adapter and i2c_client fields as deprecated, to help prevent new users from appearing. For the moment the list needs to stick around, since some issues show up when deleting devices created by legacy I2C drivers. (They don't follow standard driver model rules. Removing those devices can cause self-deadlocks.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-viapro: Add support for the VT8237SJean Delvare
Add support for another variant of the VT8237. I couldn't test I2C block support but I assume it is present as well. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-piix4: Drop redundant PCI function number checkJean Delvare
Checking the PCI function number doesn't add any value, and it makes adding dynamic IDs to the driver more difficult. Drop this check. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Let the user specify PCI driver data through new_idJean Delvare
The i2c-amd756 and i2c-viapro drivers make use of the driver_data field of the PCI device ID. When adding device IDs dynamically (by writing to the new_id sysfs file) you cannot set the value of this field by default. It has to be allowed explicitly. Do that, and check the value so that the user can't crash the kernel accidentally. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
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