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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: Drivers stop using the redundant client listJean Delvare
The redundant i2c client list maintained by i2c-core is going away soon, so drivers should stop using it now. Instead, they can use the standard iterator provided by the device driver model (device_for_each_child). Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net> Cc: Michael Hunold <michael@mihu.de>
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>
2008-01-27i2c-pxa: Add polling transferMike Rapoport
Add polling I2C transfer implementation for PXA I2C. This is needed for cases where I2C transactions have to occur at times interrups are disabled. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: eric miao <eric.miao@marvell.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Support i2c_transfer in atomic contextsMike Rapoport
Allow i2c_transfer to be called in contexts where sleeping is not allowed. It is the reponsability of the caller to ensure that the underlying i2c bus driver will not sleep either. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-sibyte: Remove the bus scan module parameterJean Delvare
The implementation is unsafe, and anyway one can achieve the same from userspace using i2c-dev + i2cdetect. Also tag i2c_sibyte_add_bus __init. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Ralf Baechle <ralf@linux-mips.org>
2008-01-27i2c: Discard unused driver IDsJean Delvare
Discard all I2C driver IDs that aren't used anywhere. That's not just a couple of them, but more like 49 or one quarter of all defined IDs! And this is just a first pass, next will come all IDs that are set but never used, or used but never set. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-i801: Implement I2C block read supportJean Delvare
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>
2008-01-27i2c-i801: Clear special mode bits as neededJean Delvare
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>
2008-01-27i2c-i801: More explicit names for chip featuresJean Delvare
Use separate flags with explicit names to describe the features of the ICH chip. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-i801: Document which chip support what featureJean Delvare
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>
2008-01-27i2c/tps65010: move header to <linux/i2c/...>David Brownell
Move the tps65010 header file from the OMAP arch directory to the more generic <linux/i2c/...> directory, and remove the spurious dependency of this driver on OMAP. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Rename main mutexJean Delvare
Rename the main mutex in i2c-core from core_lists to core_lock. This makes more sense now that the redundant lists are gone. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Drop redundant i2c_driver.listJean Delvare
i2c_driver.list is superfluous, this list duplicates the one maintained by the driver core. Drop it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net>
2008-01-27i2c: Drop redundant i2c_adapter.listJean Delvare
i2c_adapter.list is superfluous, this list duplicates the one maintained by the driver core. Drop it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net>
2008-01-27i2c: Change prototypes of refcounting functionsJean Delvare
Use more standard prototypes for i2c_use_client() and i2c_release_client(). The former now returns a pointer to the client, and the latter no longer returns anything. This matches what all other subsystems do. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net>
2008-01-27i2c: Use the driver model reference countingJean Delvare
Don't implement our own reference counting mechanism for i2c clients when the driver model already has one. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net>
2008-01-27i2c: Deprecate drivers for I2C buses on video adaptersJean Delvare
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>
2008-01-27i2c: Don't uselessly set i2c_adapter.retriesJean Delvare
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>
2008-01-27i2c: Kill rogue driver IDsJean Delvare
I2C driver IDs are optional, so if you don't need one, just omit it. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: normal_i2c can be made const (remaining drivers)Jean Delvare
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: normal_i2c can be made const (rtc drivers)Jean Delvare
Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
2008-01-27i2c: Constify client address dataMark M. Hoffman
This patch allows much of the I2C client address data to move from initdata into text. Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-algo-pcf: Delete broken 10-bit address supportJean Delvare
The 10-bit address support in i2c-algo-pcf is so heavily broken that it can't have ever been used. Nobody ever complained, so I'll take it that nobody needs it. Let's just delete it. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-algo-bit: Fix NAK/ARB commentsDavid Brownell
Update comments and logging on return path for byte writes. NAK is an error, to be reported or optionally ignored. Timeouts are always errors. Lost arbitration is not currently handled, so don't even list it as an option in the error message. Don't return bogus EFAULT code for inappropriate NAK; EIO is better, there is no bad userspace address in question. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-algo-bit: Whitespace fixes (+ NAK/ARB comments)David Brownell
Fix *LOTS* of whitespace goofs and checkpatch.pl warnings, strangely parenthesized ternary expressions, and other CodingStyle glitches. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-pxa: Remove hardcoded #ifdef and use cpu_is_pxa27xeric miao
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>
2008-01-27i2c: some overdue driver removalAdrian Bunk
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>
2008-01-27ixp4xx-i2c-gpioMichael-Luke Jones
Migrate all ixp4xx devices to the bitbanging I2C bus driver utilizing the arch-neutral GPIO API (linux/i2c-gpio.h). Tested by the nslu2-linux and openwrt projects in public firmware releases. Signed-off-by: Michael-Luke Jones <mlj28@cam.ac.uk> Acked-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: the scheduled I2C RTC driver removalAdrian Bunk
This patch contains the scheduled removal of legacy I2C RTC drivers with replacement drivers. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-stub: Use a single array for byte and word operationsJean Delvare
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>
2008-01-27i2c-stub: Mention the existence of an helper scriptJean Delvare
There's a new script named i2c-stub-from-dump that can be very helpful when working with the i2c-stub driver. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c/tsl2550: Add power management addedRodolfo Giometti
Signed-off-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Add support for the PCF8575 chipBart Van Assche
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-ibm_iic: Whitespace cleanupStefan Roese
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-pasemi: use i2c_add_numbered_adapter()Olof Johansson
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>
2008-01-27i2c-nforce2: The nForce2 can do block transactionsJean Delvare
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>
2008-01-27printk: revert ktime_get() timestampsIngo Molnar
revert 19ef9309273d26cb005cb23e6a370353dca91099. Kevin Winchester reported a lockup during X startup an bisected it to this commit. Reported-by: Kevin Winchester <kjwinchester@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] DFS build fixes [CIFS] DFS support: provide shrinkable mounts [CIFS] Do not log path names in lookup errors [CIFS] DFS support patchset: Added mountdata [CIFS] Forgot to add two new files from previous commit [CIFS] DNS name resolution helper upcall for cifs [CIFS] fix checkpatch warnings in fs/cifs/inode.c [CIFS] hold ses sem on tcp session reconnect during mount [CIFS] Allow setting mode via cifs acl [CIFS] fix unicode string alignment in SPNEGO setup [CIFS] cifs_partialpagewrite() cleanup [CIFS] use krb5 session key from first SMB session after a NegProt [CIFS] redo existing session setup if needed in cifs_mount [CIFS] Only dump SPNEGO key if CONFIG_CIFS_DEBUG2 is set [CIFS] fix SetEA failure to some Samba versions
2008-01-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (63 commits) ide: remove REQ_TYPE_ATA_CMD ide: switch ide_cmd_ioctl() to use REQ_TYPE_ATA_TASKFILE requests ide: switch set_xfer_rate() to use REQ_TYPE_ATA_TASKFILE requests ide: fix final status check in drive_cmd_intr() ide: check BUSY and ERROR status bits before reading data in drive_cmd_intr() ide: don't enable local IRQs for PIO-in in driver_cmd_intr() (take 2) ide: convert "empty" REQ_TYPE_ATA_CMD requests to use REQ_TYPE_ATA_TASKFILE ide: initialize rq->cmd_type in ide_init_drive_cmd() callers ide: use wait_drive_not_busy() in drive_cmd_intr() (take 2) ide: kill DATA_READY define ide: task_end_request() fix ide: use rq->nr_sectors in task_end_request() ide: remove needless ->cursg clearing from task_end_request() ide: set IDE_TFLAG_IN_* flags before queuing/executing command ide-tape: fix handling of non-special requests in ->end_request method ide: fix final status check in task_in_intr() ide: clear HOB bit for REQ_TYPE_ATA_CMD requests in ide_end_drive_cmd() ide: fix ->io_32bit race in ide_taskfile_ioctl() cmd64x: remove /proc/ide/cmd64x ide: remove broken disk byte-swapping support ...
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